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A magazine and REFERENCE TOOL FOR THE WEIGHING INDUSTRY / Winter 2010 • issue 2 • vol. 7


WHAT’ What's S New NEW<br />

Ishida Uni-7 Series<br />

The Ishida Uni-7 Price-Computing<br />

Scale/Printer Series includes<br />

several models with unique<br />

features. Here are just a few.<br />

this issue<br />

rice lake<br />

magazine<br />

winter 2010 • Issue 2 • Vol. 7<br />

software for CW-90<br />

and CW-90X<br />

WeighVault allows CW-90/90X users<br />

to add, edit, and access IDs over a network<br />

connection. WeighVault surpasses<br />

the CW-90/90X’s 50 ID limitation<br />

and eliminates front-panel entry<br />

of ID parameters. It also collects<br />

data as transactions occur and<br />

provides detailed transaction and<br />

productivity reports that can be<br />

exported to Excel, Word, or PDF. If an<br />

ID is entered in WeighVault, the CW-90/90X<br />

will load and begin using it when that ID number<br />

is selected from the front panel. www.ricelake.com/weighvault ▪<br />

RL9000TWM-HT rated to 400⁰ F.<br />

<strong>Rice</strong> <strong>Lake</strong> now stocks high temperature<br />

versions of the RL9000TWM weigh<br />

module rated to 400⁰ F with 25 ft of Teflon®<br />

cable. All other specifications are identical<br />

to the standard RL9000TWM.<br />

The RL9000TWM-HT<br />

is now in stock and part<br />

numbered up to 50,000 lb<br />

capacity. Higher capacities<br />

available as special quote.<br />

www.ricelake.com/hightemp ▪<br />

<strong>Rice</strong> <strong>Lake</strong>’s Versa-portion <br />

is compact and has a large platter that is<br />

perfect for kitchens, laboratories, and work<br />

stations. With a removable stainless steel<br />

cover and IP68 rating, inevitable spills are<br />

easy to clean. The bright LED display is<br />

visible in dim light, and the keypad’s fourbutton<br />

operation is simple to use. Toggle<br />

between ounces, pounds, and grams. Tare<br />

a product or container up to one-half of<br />

total scale capacity. By adding an optional<br />

battery, the Versa-portion provides up to<br />

60 hours of continuous use.<br />

www.ricelake.com/versaportion ▪<br />

The Uni-7 Hanging model is<br />

the only hanging scale with a color<br />

touch screen. Eye-level keypad<br />

and display are up and away<br />

from moisture.<br />

The Uni-7 Elevated Keypad model<br />

offers additional ergonomic benefits<br />

to many types of work areas.<br />

Available with optional receipt<br />

printer and color customer display.<br />

The Uni-7 Self-Serve model offers<br />

modular product billboards that<br />

can be arranged to suit self-serve<br />

needs. Large, easy-to-read displays<br />

are customer-friendly.<br />

For more details go to<br />

www.ricelake.com/uni7<br />

What’s New<br />

2<br />

Sticky Situation<br />

H. B. Fuller has 90 days to be up-and-running<br />

4<br />

Animals say ahhhhhhhhhh<br />

8<br />

READ THIS<br />

before you buy a cut-rate load cell<br />

12<br />

It’s Alive<br />

How Micro-Organisms Shape<br />

the Blue Jean Industry<br />

14<br />

wrapping up 2010<br />

18<br />

COKING COAL<br />

24<br />

Bruce has a Gift<br />

26<br />

<strong>Rice</strong> <strong>Lake</strong>’s 2010 News Clips<br />

Surviving Ike 7<br />

Kanawha’s Big Iron 9<br />

Anchors Aweigh: <strong>Rice</strong> <strong>Lake</strong><br />

test weights tip the boat 11<br />

Reputation on the line 13<br />

One cause for delayed<br />

luggage eliminated 17<br />

SURVIVOR® goes on a ferry ride 23<br />

Editorial Staff:<br />

Carol Ailes, Technical Writer<br />

Melanie Al Faraj, Technical Writer<br />

Tamala Anderson, Designer<br />

Cheryl Aune, Literature Manager<br />

Bob Chatten, Translator<br />

Matt Davis, Marketing Specialist<br />

Jessica de la Cruz, Writer<br />

Melissa Hjelle, Marketing Specialist<br />

Katy Madden, Senior Editor<br />

Hannah Martell, Designer<br />

Kelly Musil, Catalog Manager<br />

Caleb Olson, Technical Writer, Reporter<br />

Pat Ranfranz, Marketing Director<br />

Adam Sharpe, Web Master<br />

Tina Slayton, Marketing Specialist<br />

Kevin Theese, Marketing Support<br />

Stacy White, Marketing Specialist<br />

Kristina Zengaffinen, Senior Designer<br />

WE LOOK FORWARD TO WEIGHING IN THE NEW YEAR.<br />

If the second decade of the 21 st century is anything like the first, we will witness many<br />

changes in the weighing industry. As always, <strong>Rice</strong> <strong>Lake</strong> is poised to meet new challenges<br />

and to lead with new products and services.<br />

We celebrate the holidays and see everything on our tables from turkey to cranberries,<br />

from wine to cheese, and from gelatin to jelly beans, and we’re grateful—especially<br />

when we think about how the entire feast is weighed or counted, measured and processed<br />

with <strong>Rice</strong> <strong>Lake</strong> equipment.<br />

In this issue, we share a wide range of information. You’ll find the latest on <strong>Rice</strong> <strong>Lake</strong><br />

equipment applications as far from Wisconsin as Brazil, along with stories that feature<br />

adhesives, coking coal, blue jeans, yachts, sea lions, and giraffes. We explore the<br />

mystery behind inexpensive load cells, and why and how to back up your data to help<br />

ensure that the new year for your business is a safe, happy, and prosperous one.<br />

From all of us at <strong>Rice</strong> <strong>Lake</strong> <strong>Weighing</strong> <strong>Systems</strong><br />

to all of you—may 2011 be your best by every measure.<br />

RICE LAKE ONLINE MAGAZINE<br />

Going green Access the <strong>Rice</strong> <strong>Lake</strong> magazine online.<br />

You will enjoy the same great stories plus links to more<br />

information. Also, with electronic access, you can easily<br />

share articles with employees and customers.<br />

To subscribe:<br />

Go to www.ricelake.com/ricelakemagazine and<br />

complete the online form.<br />

It’s that easy. If you have any questions, please email<br />

us at rlmagazine@ricelake.com.<br />

Find us on facebook:<br />

www.facebook.com/ricelakeweighingsystems<br />

<strong>Rice</strong> <strong>Lake</strong>’s Baby New Year is being weighed on the <strong>Rice</strong> <strong>Lake</strong> Digital Baby Scale (RL-DBS).<br />

The large LCD display and 44 lb capacity makes this scale perfect for infant weighing.<br />

2 RICE LAKE MAGAZINE | www.ricelake.com<br />

www.ricelake.com | RICE LAKE MAGAZINE 3


On location<br />

On location<br />

The H.B. Fuller Construction Products division, headquartered in Aurora, IL, is at the forefront of construction<br />

products innovation. Here, a very lean crew formulates, mixes and packages a long list of mastics, coatings, sealants and adhesives used<br />

in commercial and residential construction.<br />

They make ceramic tile installation products, flooring adhesives, surface preparation products, exterior insulation finish systems and<br />

epoxy flooring for commercial and professional contractor markets. They also batch pre-mixed grouts, mortars and other products<br />

targeted predominantly to the retail home improvement marketplace. Jim Holman, president of Fox Valley Scale, New Lenox, IL, puts<br />

it in a nutshell, “They make sticky stuff.” Fox Valley Scale was called to the H. B. Fuller Construction Products plant to come up with a<br />

solution for what could have been a sticky situation.<br />

“We needed a controller that was simple and powerful. We made the choice and it paid<br />

off huge. We realized a return within four months. I don’t think we have ever had to scrap<br />

a batch. We run about 20,000 pounds of product a day though this area of our operation.<br />

I’ve got a box here of data we collected to keep track of variances.<br />

But we don’t collect data anymore because there is so little variance. Saves some trees.”<br />

Geoffrey Russell, H.B. Fuller production manager<br />

Left to right: Geoffrey Russell, H.B. Fuller production manager, Mike Ryan, <strong>Rice</strong> <strong>Lake</strong> Great <strong>Lake</strong>s regional director,<br />

Jim Sansone, H.B. Fuller maintenance manager, Jim Holman, Fox Valley Scale president, Travis TJ Oehmen,<br />

and Joel Velazquez, Fox Valley Scale service technicians<br />

Geoffrey Russell, production manager,<br />

and Jim Sansone, maintenance manager,<br />

recall the day they were advised that a<br />

variety of new processing and packaging<br />

equipment was being moved to the Aurora<br />

facility. Jim remembers, “We had to figure<br />

out how we could combine that new<br />

production equipment with the existing<br />

manufacturing area and be up and running<br />

in ninety days.”<br />

Jim Sansone, maintenance manager,<br />

reviewed current production methods<br />

of the used equipment transferring to<br />

the Aurora factory. He realized that<br />

much of the equipment and processes<br />

were well over 20 years old and needed<br />

an upgrade in technology. Manual raw<br />

material weighing systems needed to be<br />

automated. The company had limited<br />

knowledge in using load cells and wanted<br />

to minimize capital spent on the relocation<br />

of the equipment. Jim notes, “We<br />

had to justify the money.”<br />

Jim Holman did his research and Fox<br />

Valley Scale came back with this 920i®<br />

solution. Holman remembers the planning<br />

meeting. “I came up to <strong>Rice</strong> <strong>Lake</strong><br />

and had a breakfast meeting with Don<br />

Fiedler and Marvin Stodola [<strong>Rice</strong> <strong>Lake</strong><br />

engineers] and Mike Ryan [<strong>Rice</strong> <strong>Lake</strong><br />

Great <strong>Lake</strong>s regional director]. We literally<br />

figured it out in an hour on the back<br />

of a napkin at the restaurant. Kristi Gay<br />

[<strong>Rice</strong> <strong>Lake</strong> engineer] wrote the program<br />

and created the tables to recall formulas.”<br />

The system includes eight 920i s with<br />

24-channel I/O and Ethernet® outputs.<br />

Holman believes the solution is perfect.<br />

“All the 920i s are tied to one network<br />

printer. Supervisors are using Interchange®<br />

to load formulas from the office<br />

via the printer. One really neat aspect of<br />

the system is that any one of the 920i s<br />

can be used as a backup for any of the<br />

others. The I/O is redundant throughout<br />

the system. It can be changed simply wire<br />

for wire.”<br />

Meanwhile, back at the plant in Aurora,<br />

Sansone and Russell were designing and<br />

building the steel mezzanine.<br />

Continued on page 6<br />

4 RICE LAKE MAGAZINE | www.ricelake.com<br />

www.ricelake.com | RICE LAKE MAGAZINE 5


On location<br />

“One really neat<br />

aspect of the system<br />

is that any one<br />

of the 920i ® s can<br />

be used as a backup<br />

for any of the<br />

others. The I/O<br />

is redundant<br />

throughout the<br />

system. It can be<br />

changed simply<br />

wire for wire.”<br />

Jim Holman, president,<br />

Fox Valley Scale, New Lenox, IL<br />

Surviving Ike<br />

On September 9, 2008, as Hurricane Ike neared landfall near Galveston, Texas,<br />

it became the largest Atlantic tropical cyclone in recorded history, measuring<br />

900 miles in diameter. The National Weather Service issued a strongly worded<br />

bulletin advising residents living in some parts of coastal Texas that they faced<br />

"certain death" if they did not heed orders to evacuate.<br />

Ike’s 20-foot storm surge brought certain death to many truck scales in<br />

Texas—but not the SURVIVOR® OTR that Gary Becton, lead technician<br />

with <strong>Weighing</strong> Technologies, Seabrook, Texas, is still talking about to this<br />

day. “We had the service contract on this scale, and the owner asked us to<br />

come and take a look at it after the surge water went down. The scale had<br />

been under fifteen feet of saltwater for days. We opened up the summing<br />

box and there wasn’t a drop of water! I guess that’s why <strong>Rice</strong> <strong>Lake</strong> calls<br />

them “survivors.” We put in a new <strong>Rice</strong> <strong>Lake</strong> 420i indicator and printer<br />

and the scale worked perfectly!<br />

“We had other customers in the Galveston area, and none of those truck<br />

scales survived Ike. The modules floated up and came apart. The <strong>Rice</strong> <strong>Lake</strong><br />

scale didn’t float up at all. Probably because it’s heavier steel and the way the<br />

suspension system is designed—it doesn’t allow the scale to float off like all<br />

the others did.<br />

“We’ve moved the scale to another location now. The new owner really likes<br />

the scale. He bought a <strong>Rice</strong> <strong>Lake</strong> floor scale later.” ▪<br />

H.B. Fuller Construction Products built a mezzanine to accommodate a variety of new processing<br />

and packaging equipment being moved from another facility. They were tasked to combine the new<br />

equipment into the existing manufacturing area and be up and running in 90 days.<br />

Sticky Situation continued from page 5<br />

Sansone recalls the Big Day. “The first<br />

time we fired it up, everything worked!<br />

I was pretty happy about that.”<br />

Holman adds, “And it can be expanded.<br />

We can stick another twenty-four<br />

channel card in there. That’s the beauty<br />

of the 920i.”<br />

The factory currently supports another<br />

control system that requires ongoing<br />

vendor changes, which in turn requires<br />

ongoing expense. Sansone agrees, “That<br />

is what got us thinking about another<br />

way to automate this new system. The<br />

920i system is so much easier from a<br />

programming perspective and for updating.<br />

There is a cost to changing raw<br />

materials and formulas with the older<br />

system. We do that a lot. The fact that<br />

we can do it in a text style is huge. With<br />

the 920i, we can load the new formula<br />

and go live today. It’s very flexible. No<br />

controller is unique. They are completely<br />

interchangeable, wire for wire. The<br />

programs are the same. We just load the<br />

batch routine.” ▪<br />

The actuators open and close valves for the<br />

chemical ingredients in each formula. Geoff says<br />

the 920i weighs the ingredients and sends a signal<br />

as the target approaches. It anticipates the dribble<br />

of each ingredient after closing and actually<br />

adapts and improves each time it<br />

formulates a recipe.<br />

6 RICE LAKE MAGAZINE | www.ricelake.com


On location<br />

Kanawha’s Big Iron<br />

Kanawha Scales & <strong>Systems</strong> Inc., Poca, WV, was awarded a multimillion dollar<br />

contract for a fully automated iron ore batch weigh loading facility. The contract was<br />

awarded by VALE, located in the Amazon Jungle and in the town of Carajas, Para,<br />

Brazil. The 24,000 TPH facility will be loading rail wagons with iron ore that will be<br />

exported to China.<br />

Zoo animal handlers and veterinarians cannot peer down a giraffe’s<br />

throat. Obtaining weight data and records on a routine basis with the least amount<br />

of stress to the animal is a science in itself. Gradual or sudden fluctuation in body<br />

weight in zoo and aquarium animals is an early quantifiable indication for closer<br />

examination and treatment or change in diet and exercise.<br />

<strong>Rice</strong> <strong>Lake</strong>’s RoughDeck® is the scale distributors specify because they know it<br />

will stand up to animal use and perform dependably. ▪<br />

The system consists of four weigh bins, two surge bins, with a total height of 211<br />

feet, using 2,165 tons of steel in the construction, four operator control chairs, a batch<br />

system, one train speed indication system, two in-motion rail scales, and a foreign<br />

body detection system for identification of any foreign objects in the wagons<br />

prior to loading.<br />

One of the main control components of this complex system is the <strong>Rice</strong> <strong>Lake</strong><br />

920i® indicator and sixteen 125,000 lb double-ended shear load cells. Each instrument<br />

is equipped with an Ethernet®/IP card to communicate directly with the Allen Bradley<br />

ControlLogix PLC processor and Rockwell Automation’s Factory Talk View SE software<br />

for the HMI displays. This allows all the scale information to be available to the PLC for<br />

exceptional control.<br />

<strong>Rice</strong> <strong>Lake</strong> pit scale in the giraffe enclosure at<br />

Detroit Zoo. Chardo supervises.<br />

Mike Bennett, NuWeigh Scale, Davisburg,<br />

MI, sent us the picture he shot while<br />

installing a 5 ft x 7 ft RoughDeck QC to<br />

weigh giraffes at the Detroit Zoo. The scale<br />

deck was coated with Slipknot® for safer<br />

footing. The pit was dug in a long enclosed<br />

lane that the giraffes walk through. Patricia<br />

Mills Janeway, zoo communications<br />

director, tells us, “Chardo was most<br />

recently weighed on September 28; she<br />

tipped the scale at 1,549 pounds.<br />

Shedd Aquarium senior marine<br />

mammal trainer Kelly Schaaf works<br />

with Ty, a California sea lion, to “speak”<br />

and pause on a <strong>Rice</strong> <strong>Lake</strong> scale so April<br />

Keller can record his weight during a routine<br />

health exam. Marine mammal trainers at Shedd<br />

Aquarium use positive reinforcement to encourage sea<br />

lions and many other animals to participate in their own health<br />

care assessment. ▪<br />

To access Our Day at the Zoo, go to<br />

http://www.ricelake.com/dayatzoo.<br />

The Carajas mine is the world’s largest iron ore mine and has reserves of 1.5 billion<br />

tons of iron ore. Currently Brazil is the world’s largest exporter of iron<br />

ore with an annual production of over 200MT.<br />

Over the years, Kanawha Scales & <strong>Systems</strong> Inc.<br />

has steadily evolved from a weighing equipment<br />

service company into a fully integrated company,<br />

providing engineering solutions for plant floor<br />

automation, material handling, controls systems<br />

engineering, mechanical design, hydraulic design<br />

engineering, computer and PLC programming<br />

and database management systems. From its<br />

beginning, the company has grown to over 200<br />

employees with branch offices and subsidiary<br />

companies in fourteen cities throughout the<br />

Northeast and Central United States,<br />

as well as an office in Beijing,<br />

China, and Sao Paulo, Brazil,<br />

with successful installations in<br />

Canada, Colombia, Brazil, South<br />

Africa, India, Saudi Arabia, The<br />

People’s Republic of China,<br />

and Australia. ▪<br />

Ty, a California sea lion, is weighed<br />

on a <strong>Rice</strong> <strong>Lake</strong> RoughDeck ® floor scale.<br />

“She was born July 11, 1985. Chardo is<br />

listed as a reticulated giraffe, although the<br />

studbook keeper has told us that genetic<br />

testing of the U.S. captive population<br />

shows the reticulated and Rothschild’s<br />

subspecies to be all mixed up and not<br />

really distinguishable.” ▪<br />

8 RICE LAKE MAGAZINE | www.ricelake.com


Anchors Aweigh: <strong>Rice</strong> <strong>Lake</strong><br />

test weights tip the boat<br />

“I have an odd question,” Drew Hains, working for a naval architecture<br />

and marine engineering firm, began his email. “My firm does stability<br />

testing on boats and ships, and we have rented your 1000 lb NIST Class F<br />

Cast Iron Test weights. We are currently looking to do a similar test in the<br />

U.S. Virgin Islands and are having problems finding a local vendor for test<br />

weights… I realize this is an odd request and has little to do with you<br />

selling these products, but it is hard for us to locate local suppliers.”<br />

Chris Olsen, inside sales manager, sent Drew’s request to the <strong>Rice</strong> <strong>Lake</strong><br />

international group that covers the Caribbean and Latin Americas.<br />

Chris sent Drew a reply, “You will be provided with some dealers who<br />

potentially have some of our test weights in those markets. I am<br />

curious, what do you use them to test Normally they are put on<br />

a truck scale for a yearly calibration.”<br />

Drew explained, “To answer your question, we do stability testing on<br />

ships and other small craft such as yachts. With larger ships, large blocks<br />

of concrete (which are weighed before the test) are often used; however<br />

with smaller vessels where deck space is tight, your 500, 1000 and<br />

sometimes 2500 lb test weights are ideal and are easy to handle.<br />

They have the added benefit of being certified weights, thus there is little<br />

question about accuracy. On some smaller vessels we have used the 50 lb<br />

weights and moved the weights by hand during the test. Basically the<br />

test weights are placed on board and then moved transversely from side<br />

to side to apply a known moment as the heel angle is measured. Using<br />

the principles of naval architecture, the vertical center of gravity is then<br />

calculated. Thanks for the prompt response.”<br />

Drew B. Hains. PE<br />

Murray & Associates, L.L.C.<br />

Fort Lauderdale, FL<br />

When is it too much of a good thing<br />

Versa-portion keeps costs in line with every cake<br />

this bakery bakes. The large platter and compact size<br />

make it a perfect fit in commercial kitchens, laboratories,<br />

and work stations.<br />

• IP68 rating<br />

• Removable stainless steel cover<br />

• Bright LED display<br />

• Four-button keypad<br />

• Toggle ounces/pounds/grams<br />

• Tare up to ½ total scale capacity<br />

• Optional 60-hour battery<br />

For more information, go to www.ricelake.com/versatile.<br />

800-472-6703<br />

www.ricelake.com<br />

mobile: m.ricelake.com<br />

“When measuring or<br />

applying ingredients,<br />

Versa-portion is a dependable<br />

way to control your kitchen’s<br />

cost of ingredients and<br />

product quality.”<br />

Ann Crowley,<br />

<strong>Rice</strong> <strong>Lake</strong> product manager<br />

White Chocolate Cream Cheese Icing<br />

layered with Cherry Pie Filling<br />

8 oz white chocolate<br />

12 oz cream cheese, room temp<br />

6 tbsp butter, room temp<br />

1 ½ tsp pure vanilla extract<br />

4 ½ c (22 oz) confectioner’s sugar<br />

7 oz flaked coconut<br />

2 cans cherry pie filling<br />

Directions:<br />

1. Place white chocolate in glass bowl.<br />

Microwave on high 1 minute. Remove<br />

and stir until smooth.<br />

2. Place cream cheese and butter in bowl.<br />

Beat until well combined. Add melted<br />

white chocolate, vanilla and 2½ cups<br />

of confectioner’s sugar. Blend on low<br />

speed until mixed. Add additional sugar<br />

until fluffy.<br />

3. Frost: Place one cake layer on a serving<br />

platter and spread with ¼ frosting, top with<br />

½ cherries (reserve ½ cup for top). Repeat<br />

second layer. Place the third cake layer on<br />

top and frost top and sides of cake. Sprinkle<br />

and gently press coconut over entire cake.<br />

Decorate top with reserved cherries.<br />

Measuring the angle of inclination


Tech talk<br />

Excerpted by Paul Menge,<br />

<strong>Rice</strong> <strong>Lake</strong> <strong>Weighing</strong> <strong>Systems</strong> load<br />

cell product manager, from an<br />

article in <strong>Weighing</strong> & Measurement<br />

magazine, April, 2010; The True<br />

Strength of Metal—Not All Cells<br />

Measure Up<br />

In today’s world of electronic<br />

scales, the digital weigh indicator is<br />

the “brain” of the system, doing calculations,<br />

conversions, telling a relay when<br />

to trip or a conveyor belt when to start<br />

or stop. It is logical then to think of the<br />

load cell as the “heart” of the system. I<br />

don’t know about everyone else, but if<br />

I were selling scales or an end user buying<br />

a scale, I would want to make sure<br />

the heart of the system was strong and<br />

reliable, capable of working hard without<br />

failing for many, many years. As the<br />

saying goes “You get what you pay for”<br />

and this holds true with load cells and<br />

scales in general.<br />

It is no secret that many manufacturers<br />

of load cells have moved most, if not all,<br />

the manufacturing of load cells that was<br />

formerly performed in the United States<br />

to facilities they have built in other parts<br />

of the world. This was primarily due to<br />

many new load cell companies offering<br />

inexpensive load cells, necessitating the<br />

need to tap the relatively cheap labor<br />

supply offered by these countries. These<br />

companies needed to remain competitive.<br />

As major manufacturers responded to<br />

this challenge, the low cost load cell<br />

manufacturers felt they had to make a<br />

load cell even less expensive in order to<br />

grow their business. How do you do this<br />

when the playing field was pretty even<br />

You make a cheaper load cell by using<br />

inferior steel, and this is becoming more<br />

common with the less reputable load<br />

cell manufacturers.<br />

The major load cell manufacturers in<br />

the world still use the highest quality<br />

steel and aluminum to make their load<br />

cells. Even with their overseas factories,<br />

many will ship the necessary material<br />

from the United States if local mills<br />

cannot be found that provide a suitable<br />

grade of steel to make high quality load<br />

cells. The best alloy used for making<br />

load cells is 4340. This is the highest<br />

quality alloy in terms of the proper<br />

hardening needed as well as providing<br />

the best performance for making a<br />

good load cell. The best stainless steel<br />

used is 17-4PH. This is a chromiumnickel<br />

grade of stainless that again can<br />

be properly hardened, providing the<br />

best performance for a stainless load<br />

cell. In regards to aluminum load cells,<br />

2024T351 is the best grade to be used<br />

to manufacture them. All three of these<br />

materials are capable of the performance<br />

necessary to make OIML C3 or NTEP<br />

1:5000/10:000 load cells.<br />

Five metals are used overseas to make<br />

alloy load cells. Why five different<br />

grades Simply put, cost. 40CrNiMoA<br />

is the most common material found<br />

abroad that is used in making alloy steel<br />

load cells that will provide OIML and<br />

NTEP performance characteristics and<br />

is the most expensive. Currently there is<br />

only one mill in Asia capable of producing<br />

this grade of steel and guaranteeing<br />

the purity and performance. 40CrNiMo<br />

is a different grade than the previously<br />

mentioned alloy, and you will notice<br />

there is no “A” at the end. It is less<br />

expensive. Without the A designation,<br />

this alloy is similar to a B or C grade,<br />

which is inferior and is a poor material<br />

to use in making a load cell. 40CrNi is<br />

still used by a few foreign manufacturers<br />

but is totally unsuited to make load cells.<br />

40Cr is the most common material used<br />

by foreign manufacturers today because<br />

it is the cheapest but it is not capable of<br />

being heat treated properly and thus the<br />

performance will be very poor along with<br />

the possibility of premature failure.<br />

Continued on page 23<br />

Reputation on the line<br />

When a customer calls <strong>Rice</strong> <strong>Lake</strong><br />

A very good customer of ScaleTech <strong>Systems</strong>, Canada, is John Brooks, plant<br />

manager with F.W. Cobs Company, in Saint Albans Bay, VT. The F.W. Cobs<br />

Company serves the organic and conventional feed industries with top<br />

quality feed ingredients. They supply grains across North America by road<br />

or rail, with their fleet of jumbo hopper rail cars.<br />

John came looking for <strong>Rice</strong> <strong>Lake</strong>. “I read about the 920i® capabilities, and<br />

they fit what I wanted to do. I went to the <strong>Rice</strong> <strong>Lake</strong> website and read some<br />

more and then I called <strong>Rice</strong> <strong>Lake</strong> for more information.”<br />

“The 920i has tremendous capabilities. It is so good, it’s unbelievable. We<br />

have bins of different grains with different fall rates. Wheat, for instance, has<br />

a density of 60 lbs per bushel depending on the moisture content. Wheat<br />

middlings have a density of 17 lbs per bushel. The 920i can look at that and<br />

adjust the closing gate. I can hardly believe how it performs. All the varying<br />

densities are stored in the 920i. It can calculate density, moisture content,<br />

draft size and adjust how long the gate needs to be open, record the cart<br />

and bin number, and control mixing. It’s fun to watch!<br />

“I had another application cleaning grains in cleaning machines. I needed<br />

to know the exact weight of grain before and after it was cleaned. I called<br />

two companies in Canada. Neither one of the people I spoke to were able<br />

to give me any information about their products.<br />

“You can’t put a price on the value of being able to speak to someone who<br />

is capable and very knowledgeable. Every time I’ve called <strong>Rice</strong> <strong>Lake</strong>, someone<br />

got back to me. Don’t lose that! It’s a biggie!” ▪<br />

12 RICE LAKE MAGAZINE | www.ricelake.com


On location<br />

On location<br />

In 1955, the world of blue jeans changed forever. When James<br />

Dean donned his iconic denim threads in Rebel without a Cause, pop culture<br />

instantly adopted the look. No longer were they referred to as “waist overalls” most<br />

commonly worn by painters, mechanics, and old cowboys. Blue jeans became cool,<br />

every teenager wanted a pair, and the demand hasn’t let up in the over half-century<br />

since. Today, the $700 billion global blue jeans market is so prevalent in America that<br />

12 pairs are sold every second in the U.S., and the average American owns seven pairs.<br />

Few things are more identifiable with American culture as blue jeans.<br />

The blue jean has greatly evolved since its popularity skyrocketed. A solid-blue straightleg<br />

soon wasn’t stylish enough. Stone-washed, distressed, and every shade of blue now<br />

fill walls of clothing stores, but few know how these styles are achieved.<br />

How Micro-Organisms Shape<br />

the Blue Jean Industry<br />

Initially, special pumice stones were<br />

used to customize jean appearance;<br />

however, they had major<br />

drawbacks. Not only did<br />

they weaken the jeans,<br />

they also produced inconsistent<br />

results and<br />

were environmentally<br />

unsafe. Special<br />

machines had to be<br />

used to wash the jeans<br />

with the stones. In the<br />

late 1980s, the industry<br />

developed what is now<br />

used today: tiny proteins<br />

known as enzymes to “biostone”<br />

denim. These environmentally<br />

friendly chemicals are<br />

naturally created by living organisms, which is<br />

more economical. They also produce repeatable<br />

results and maintain the jeans’ structural integrity.<br />

It’s as if James Dean combined forces with<br />

Albert Einstein for the benefit of fashion!<br />

IOGEN Corporation is a leader in enzyme<br />

research and implementation. They manipulate<br />

micro-organisms to produce specific enzymes<br />

that facilitate production of a wide variety of<br />

products, including ethanol, papers and textiles,<br />

and, of course, blue jeans—so, if one drives to a<br />

clothing store using ethanol-enhanced gasoline<br />

and writes a check for blue jeans, IOGEN can be<br />

thanked for making the entire process possible.<br />

But IOGEN’s laboratories in Ottawa, Canada,<br />

had a problem. Fiber-digesting enzymes<br />

floating around in fermentation chambers are<br />

difficult to measure. Quantities are important<br />

so enzyme levels can be monitored as they are<br />

researched. At first, they used a marker to label<br />

the chambers with lines indicating fluid levels,<br />

but more precise measurements were desperately<br />

needed.<br />

Continued on page 17<br />

14 RICE LAKE MAGAZINE | www.ricelake.com<br />

www.ricelake.com | RICE LAKE MAGAZINE 15


Make sure your health scale is accurate. Our combination of advanced scale design<br />

and features with the added value of <strong>Rice</strong> <strong>Lake</strong>’s 60 years of weighing technology<br />

leadership makes the critical difference. The <strong>Rice</strong> <strong>Lake</strong> medical scale lineup includes<br />

standard mechanical and digital physician scales, wheelchair ramp scales, folding<br />

wheelchair scales, and pediatric and neonatal scales — all competitively priced.<br />

Contact <strong>Rice</strong> <strong>Lake</strong> <strong>Weighing</strong> <strong>Systems</strong> at 800-472-6703<br />

or visit www.ricelake.com/health.<br />

800-472-6703<br />

www.ricelake.com<br />

mobile: m.ricelake.com<br />

It’s Alive continued from page 15<br />

Bogie Ploch, fermentation supervisor at<br />

IOGEN, had an idea. His lab has walls<br />

full of fermentation chambers: smallscale<br />

testing vessels to research enzyme<br />

effectiveness. If the fermentation chambers<br />

could be effectively weighed, the<br />

monitoring process would be far more<br />

intuitive. Instead of exercising guesswork<br />

to estimate levels between lines, precise<br />

weight readings could be used; however,<br />

devising a system to work with existing<br />

equipment would not be easy—that’s<br />

where <strong>Rice</strong> <strong>Lake</strong> and GTR Scales came<br />

into play.<br />

Jeff Wallace, owner of GTR Scales in<br />

Arnprior, west of Ottawa, thrives on<br />

custom applications. Not one to shy away<br />

from a challenge, he used <strong>Rice</strong> <strong>Lake</strong> load<br />

cells and instrumentation to customize<br />

the container and attach a load cell directly<br />

to the vessel—an industry first. This<br />

allows data collection to be done quickly<br />

and accurately. “Since it’s a sealed unit,<br />

nothing could be inserted to measure the<br />

level,” Jeff explains. “So we modified the<br />

rig itself. We used IQ plus 355 indicators<br />

with analog output so it can report back<br />

to the PLC, and they have an automated<br />

system to collect data.”<br />

IOGEN is very pleased with the custom<br />

setup. “Since the manufacturer of the<br />

vessels doesn’t provide an option with<br />

load cells built in,” Bogie proudly explains,<br />

“this unique system gives IOGEN an<br />

advantage over our competitors. The<br />

indicators are very nice, and GTR did<br />

an excellent job. We haven’t had any<br />

problems with the indicators or load<br />

cells. Monitoring enzyme levels is much<br />

more scientific now.”<br />

Initially, only a handful of the over 20<br />

fermentation chambers were customized;<br />

however, those have been so<br />

successful that the remaining vessels<br />

will soon be fitted with load cells as<br />

well. Eventually, the entire lab will be<br />

accented by the comforting red glow of<br />

the IQ plus 355’s LED display: a perfect<br />

nightlight for the micro-organisms that<br />

make our jeans possible. ▪<br />

One cause for delayed<br />

luggage eliminated<br />

Julia Buergi, RoughDeck® product manager, sounded excited. She<br />

emailed the magazine team: “One of the VIP folks here (at the <strong>Rice</strong> <strong>Lake</strong><br />

plant in Wisconsin) reminded me that they sold a large floor scale in<br />

Canada that is being used to weigh airline cargo. They are open to a story,<br />

so please speak with them while they are here if possible.”<br />

We are always looking for a good story, and the way Ray Gauvreau, sales<br />

representative with Superior Technologies, <strong>Weighing</strong> & Controls, Inc., told<br />

it, we were on the edge of our chairs. “Our customer had a 10 x 10 ft floor<br />

scale, with ramps on all four sides, which trains of baggage carts would<br />

drive over so that each cart could be weighed then placed correctly in<br />

the plane’s baggage compartment to distribute the weight.<br />

“With ramps on all sides, the baggage cart trains could cross the scale<br />

platform from any direction. That’s what caused the scale to break down.<br />

The operators would corner or side load and feet would break off, or a<br />

load cell would be damaged. We had a service contract with them, and<br />

we would race over there from forty miles away to get the scale back<br />

in operation while the plane sat on the tarmac. We went through that<br />

breakdown and repair mode for about four years, before permission<br />

trickled down that they could buy a new scale. Now they have a 10 x 10<br />

ft, 10,000 pound capacity RoughDeck—with just two ramps! They didn’t<br />

need those four ramps.”


Tech talk<br />

Tech talk<br />

Why back up<br />

A backup system is like a fire extinguisher<br />

or a spare tire; you don’t ever<br />

want to have to use it, but when you<br />

need it, it’s great to know that it is there.<br />

If you’ve wondered what to back up,<br />

how, how often, and where to store your<br />

backups, this article is for you.<br />

Data loss<br />

This sounds pretty obvious, but<br />

consider this: how bad would it be if<br />

you lost your entire system in some sort<br />

of disaster (fire, flood, lightning strike)<br />

Even if the insurance company delivered<br />

all new equipment to your door the following<br />

day, it wouldn’t help unless you<br />

had a backup of the programs and data<br />

on your computer.<br />

Suddenly the value of the system is much<br />

more than the mere cost of the hardware.<br />

You may even find that the hardware<br />

without the data is almost useless in terms<br />

of getting (and keeping) your business up<br />

and running. The time to think about this<br />

and plan for it is now, when everything is<br />

running smoothly.<br />

Data retention<br />

Depending on the content of the<br />

data and its use, there may be additional<br />

legal reasons and/or requirements to<br />

maintain a historical record of various<br />

types of data and transactions. When in<br />

doubt, consult legal counsel before beginning<br />

to plan any system that will use or<br />

record personal, financial (like credit card<br />

numbers) or corporate data that might be<br />

called up in any legal proceedings.<br />

Data review (history)<br />

In addition to the more obvious reasons,<br />

sometimes the value in historical data<br />

can be realized in “mining” the data,<br />

looking for patterns or knowledge that<br />

can be used to make future decisions<br />

concerning purchasing and business<br />

trends and predictions such as when<br />

certain products are most popular.<br />

What to back up<br />

Data<br />

Data is simply any piece of information.<br />

Some pieces of information are more<br />

important than others and all of it needs<br />

to be in context. When determining<br />

what to back up, simply look at anything<br />

that might even remotely be of value<br />

in a historical or restorative perspective.<br />

When in doubt, back it up! Storage<br />

space today is relatively inexpensive,<br />

and information can always be erased<br />

or deleted later if and when the space<br />

is needed and the data is no longer<br />

relevant. There are a number of sources<br />

for determining what is needed and<br />

for how long, but consulting with legal<br />

counsel may also be a wise thing to do<br />

in many cases. What would you need to<br />

be able to continue to run your business<br />

without any lost revenue (billing), lost<br />

time (work in process), sales info (customer<br />

lists) and other things The actual<br />

programs do not need to be backed up,<br />

just the data. You should make sure<br />

you have software installation discs or<br />

some form of the actual programs (MS<br />

Office®, AutoCAD®, Salesforce®) so you<br />

can restore these programs in case of<br />

hardware replacement.<br />

Some examples include calibration<br />

certificates for scales, internal ISO<br />

documentation, data<br />

retrieved from customers<br />

and accounting information.<br />

Variables<br />

It is also important to back up data that<br />

changes. To determine what to back up,<br />

imagine the scenario of a disaster such<br />

as a fire. In other words, any data—such<br />

as inventory, costing, customer invoices<br />

and other things that are updated on<br />

a regular basis—should be backed up.<br />

This way, in the event of a failure, you<br />

can access the latest values for that data.<br />

Dates<br />

Sometimes the date and/or time of a<br />

transaction can be important. Be sure<br />

to examine and consider the content of<br />

your backup and whether the date that<br />

the change took place is important. If<br />

so, be sure the time and date information<br />

is included in what you back up.<br />

Program settings<br />

Jim Daggon<br />

<strong>Rice</strong> <strong>Lake</strong> senior engineer,<br />

emerging technologies<br />

Some programs have certain settings<br />

that may change on a regular basis. Examples<br />

of this include print formats, file<br />

locations, custom features and operations,<br />

and customer data<br />

and logos. This data should also<br />

be backed up at least once during each<br />

change, so the latest program settings<br />

are available.<br />

Time-sensitive material<br />

Finally, consider what data, if any, is<br />

time sensitive. An expiration date, a lot<br />

number, or any data that will become<br />

irrelevant after a certain time will fall<br />

into this category.<br />

Continued on page 20<br />

18 RICE LAKE MAGAZINE | www.ricelake.com<br />

www.ricelake.com | RICE LAKE MAGAZINE 19


Tech talk<br />

Tech talk<br />

Wrapping Up 2010 continued from page 19<br />

What NOT to back up<br />

Programs<br />

There are two reasons not to back up<br />

programs, other than making an archival<br />

copy (just a copy of the disk or files that<br />

were initially received when the program<br />

was purchased).<br />

Most programs today are installed on systems<br />

using an installation program. These<br />

programs build files, modify other files<br />

and actually write certain variables to the<br />

program as the installation is taking place.<br />

Since these programs are not usually simply<br />

copied to a system, to restore them from a<br />

backup can be very difficult. Use the install<br />

program and the original program files,<br />

and then install any updates. The data can<br />

then be restored from the backup, and you<br />

should be fully operational.<br />

Usually the program does not change,<br />

so making repeated backups of the same<br />

thing simply takes up space unnecessarily.<br />

Old files: dynamic vs. static<br />

Older files that are no longer changing<br />

are usually best served by archiving them<br />

rather than backing them up on a regular<br />

basis. The difference between an archive<br />

and a backup is simply how many times<br />

it is done. An archive is usually backed up<br />

only once and then one or more copies<br />

are stored in a secure but possibly more<br />

remote location than the backup.<br />

When to back up<br />

Data variance rates<br />

To answer the question, “How often should<br />

I back up” ask yourself, “How old can<br />

the data be after a failure” In other<br />

words, if you were running a stock trading<br />

exchange, you probably wouldn’t want<br />

to rely on data that is three months old.<br />

On the other hand, if you are balancing<br />

a checkbook, you probably do not need<br />

hourly backups. Consider the effort involved<br />

and how often your data changes.<br />

If you could reconstruct the last four days<br />

from papers and memory, then a weekly<br />

backup would probably work well. If<br />

there is a big increase in the data, then an<br />

interim backup might be needed.<br />

How to back up<br />

Schedule<br />

Taking into account the data variance<br />

rates above, a scheduled automatic<br />

backup is usually better than “I’ll try to<br />

remember to do it this Friday.” Setting<br />

a schedule will assure that backups are<br />

done as often as necessary.<br />

Media<br />

Decide what type of media on which<br />

you are going to back up your data.<br />

Small amounts can be backed up to a<br />

USB Flash drive. These are relatively<br />

inexpensive and can be erased and<br />

rewritten, but they only<br />

handle about 16-32<br />

GB of data.<br />

If you need more than that, you might<br />

look at writable CDs, rewritable DVDs,<br />

or even external hard drives.<br />

Personnel<br />

Decide who is going to be responsible<br />

for doing the backup and verifying the<br />

data. The last thing you want to hear in<br />

the event of data loss is, “Well, I thought<br />

someone else was doing it!”<br />

Reporting in place<br />

(including error reporting)<br />

If the backup program returns an error,<br />

or something goes wrong with the<br />

backup, the time to deal with it is now,<br />

not after the data is lost. This falls under<br />

the category of “closing the barn door<br />

after the horses have gone.<br />

Where to back up<br />

Onsite/Offsite<br />

You can simply make a backup on some<br />

appropriate media and keep copies in the<br />

company vault. (A fireproof box is a simple<br />

and economic way to do this). A better<br />

way is to make the backups and store<br />

them offsite. That way even if a problem<br />

like a fire or flood affects the workplace,<br />

the backups will not be affected.<br />

Remote backup<br />

Today, there are a number of web-based<br />

services that will allow you to back<br />

up to their servers over the Internet.<br />

Some examples are Iron Mountain,<br />

Mozy, and Carbonite. Also many of<br />

the anti-virus companies are offering<br />

this service. The advantage is that the<br />

backup can be accessed anywhere at any<br />

time. These backups are also protected<br />

by redundant systems and password<br />

protection.<br />

One more thing—TEST!<br />

Cannot be stressed enough.<br />

The backup is only as good as the data<br />

on it. If, for any reason, the data is<br />

incomplete, corrupted, or missing, then<br />

it is useless. One great way to utilize an<br />

older computer is to clear all the data off<br />

it and install just the programs that you<br />

are backing up the data for. Then, take a<br />

copy of the backup and restore it to the<br />

computer. If there is a problem, you will<br />

know immediately. Since you are only<br />

using this to validate the backup, it is<br />

okay if the program runs slowly.<br />

There is great value in maintaining a<br />

backup of your data and systems. A little<br />

planning now can save a lot of time,<br />

effort, stress, and money later. ▪<br />

That’s how long it takes for the TM-T88V Point-of-Purchase Printer to print a receipt.<br />

It prints up to 7.9 inches per second. The TM-T88V delivers the same high speed for text<br />

or graphics, including two color logos. Speedy features include drop-in paper loading,<br />

auto cutter and auto status back messages. The cover is designed to ward off spills.<br />

Optional power supply case is available.<br />

Why wait for slow receipt printers when you can get<br />

fast so economically See the TM-T88V in real time<br />

at www.ricelake.com/receiptplease.<br />

800-472-6703<br />

www.ricelake.com<br />

mobile: m.ricelake.com<br />

www.ricelake.com | RICE LAKE MAGAZINE 21


Read this before you buy a cut-rate load cell<br />

continued from page 13<br />

The last alloy I will talk about is<br />

42CrMo. It is gaining popularity by<br />

some foreign manufacturers but is suitable<br />

to make high quality load cells. It<br />

is used because it is cheap, and as the<br />

performance is slightly better than 40Cr,<br />

manufacturers can say they are not using<br />

40Cr.<br />

Three types of stainless steel are used<br />

overseas to manufacture load cells. 17-<br />

4PH is the Mercedes of stainless alloys<br />

when it comes to load cell manufacturing.<br />

0Cr17N4Cu4Nb is the Asian<br />

equivalent to 17-4PH. At this time, there<br />

is only one mill in Asia that has the<br />

expertise to manufacture this stainless<br />

for load cell production. 2Cr13 is the<br />

designation of a type of alloy sometimes<br />

referred to as “stainless iron” or<br />

“imitation stainless steel.” It has slightly<br />

better corrosion resistance than 40Cr,<br />

but it certainly cannot be compared to<br />

17-4PH or 0Cr17N4Cu4Nb and is used<br />

because of cost.<br />

SURVIVOR® goes on a<br />

ferry ride<br />

Roy Hotchkiss, service manager at Badger Scale, Inc., Fond du Lac, Green Bay,<br />

Madison, Milwaukee and Wisconsin Rapids, WI, sent us these pictures. A 40 ft x 10 ft<br />

SURVIVOR truck scale is loaded on a ferry headed for Madeline Island, where it is<br />

being used for a project to lengthen the airport runway.<br />

There are currently two mills in Asia that<br />

extrude their aluminum close to a 2024<br />

grade. Their designation code is Y12, and<br />

this is an acceptable product. There are a<br />

large number of manufacturers that use<br />

recycled aluminum and, although commendable<br />

from an environmental and<br />

economic standpoint, this makes a poor<br />

load cell because of the impurities inherent<br />

in recycled aluminum.<br />

We have, on our shelf, ready to send, the largest selection<br />

of load cells in the world. NTEP, washdown, corrosive resistant,<br />

high temperature, high capacity. We stock over 50,000 load<br />

cells and can probably ship the one you need the same day<br />

you order it. Service, selection, and speed; they all work here.<br />

For more information go to www.ricelake.com/lcwm<br />

The metal used in manufacturing load<br />

cells is critical for a high quality load cell<br />

but the other processes and materials<br />

used are important as well and can also<br />

be “cheapened up” to make a load cell’s<br />

price almost irresistible. Proper heat<br />

treating, close tolerance machining and<br />

finishing, quality cable and strain gauges<br />

as well as a top notch quality control<br />

program and engineers with years of<br />

load cell design experience are all necessary<br />

in making a quality product. ▪<br />

800-472-6703<br />

www.ricelake.com<br />

mobile: m.ricelake.com


ON LOCATION<br />

ON LOCATION<br />

Kirby tells us half of CanmetENERGY’s<br />

tests are done for steelmakers and half are<br />

for Canadian coal mines that sell coking<br />

coal to steelmakers. “We test the coal<br />

they send us in the proportions they suggest.<br />

But instead of a 4 or 6 meter high<br />

furnace, we test it in a furnace a little<br />

over 1 meter high by adjusting conditions.<br />

Among other things, we are testing<br />

to find the force of the wall pressure on<br />

the coke oven, because most of the coke<br />

ovens in the world are old. If there is too<br />

operating today was built in 1902 and<br />

still has a future due to continuing facility<br />

renovation and oven rebuilds. The CAAA<br />

’90 has also resulted in the delaying of<br />

the deterioration cycle of coke ovens. The<br />

mechanisms that result in leakage are the<br />

same that cause failure of ovens, so when<br />

leakage is systematically eliminated, the<br />

result is longer battery life.<br />

Coke producers convert metallurgical or<br />

coking coal to coke by driving off small<br />

center of the oven, the entire mass has<br />

been carbonized. The incandescent coke<br />

mass is pushed from the oven and is<br />

then quenched with water or nitrogen to<br />

cool it before storage, or it is transferred<br />

directly to the blast furnace for use in<br />

iron making.<br />

Optimal operation of the blast furnace<br />

demands the highest quality of raw materials.<br />

The carbon content of coke therefore<br />

plays a crucial role in terms of its<br />

Brilliant solution:<br />

Jeff Wallace of GTR Scales Ltd.,<br />

in Arnprior, Ontario, supplied<br />

CanmetENERGY with a 920i® interfaced<br />

to a high resolution Sartorius<br />

base for their coke research lab in<br />

Ottawa. “They wanted to place a given<br />

amount of coke into a furnace and<br />

know when they had burnt off 200<br />

grams. Our sister company, DCH, did it<br />

by manufacturing an equal arm balance.<br />

One end has the sample of coke<br />

in the furnace and the other end rests<br />

on the Sartorius. As the coke reacts,<br />

the weight is transferred to the scale<br />

platform, thus showing us what is<br />

happening in the furnace.”<br />

24 RICE LAKE MAGAZINE | www.ricelake.com<br />

Global steel production is dependent on coal. Steel is an alloy based primarily<br />

on iron. As iron occurs only as iron oxides in the earth’s crust, the ores must be<br />

converted, or reduced, using carbon. The primary source of this carbon is coking coal.<br />

Nearly all of the coke produced in the world is fed into blast furnaces to make steel.<br />

World crude steel production was 1.2 billion tons in 2009. Around 761 million tons of<br />

coking coal was used in its production.<br />

Canada annually exports about 30 million tons of coking coal and uses an additional<br />

6 million tons domestically. On behalf of Canadian coal, steel, and metal producers,<br />

CanmetENERGY conducts research and development on metallurgical coal and coke<br />

technologies including energy recovery from coke production, metallurgical coke,<br />

bio-coke, and research into Canadian coal. CanmetENERGY’s coal evaluation, preparation<br />

and carbonization facilities are available to industry on a fee-for-service basis to<br />

assist with mine planning, marketing and economic investigations; to ensure low risk<br />

to expensive facilities during coking; and to evaluate the quality of coke, coal and other<br />

alternate fuels including biofuels for metallurgical purposes.<br />

Kirby Wittich, CanmetENERGY research engineer, explains, “On every continent there<br />

is metallurgical coal, junk coal and excellent coal. It depends on the particular seam. We<br />

are looking for very particular bituminous coals. A very quick bench-top<br />

test can be done. We grind the coal up and heat 1 gram of it to about 800⁰ C<br />

in a small crucible. After two minutes we take the lid off. If it is coking coal,<br />

we’ll see a little muffin. If it is not coking coal, it may look exactly as it did<br />

before—just powder.<br />

“Some coal may coke at a certain temperature, and another at a different<br />

range. When we mix those together we have a mixture that cokes at a wider<br />

temperature range. The price difference between coking coal and coal that<br />

would be used in a combustion furnace can be five to ten times. If a mine<br />

shows that they have coking coal, then often a huge investment is made to<br />

mine that coal.”<br />

There are two kinds of coke producers: integrated and merchant. Integrated<br />

coke producers are affiliated or owned by a steel manufacturer; merchant<br />

producers are those who produce coke to be sold on the open market.<br />

“The greatest thing about dealing with <strong>Rice</strong> <strong>Lake</strong><br />

is they really do customer service. Other scale manufacturers may<br />

have a five-year warranty as well, but if someone other than their service<br />

rep touches it, the warranty is nullified—and they want a purchase<br />

order number before they’ll show up!”<br />

much pressure on the oven wall, it will<br />

crack and leak, and they take many millions<br />

to fix.”<br />

Possibly the single biggest concern for<br />

all coke producers is their ability to meet<br />

the requirements of the Clean Air Act<br />

Amendments of 1990 (CAAA ’90). A<br />

cracked oven wall produces emissions,<br />

and emissions bring huge fines. Coke is<br />

produced in a coke battery that is composed<br />

of many coke ovens stacked in rows<br />

into which coal is loaded. The generally<br />

accepted guideline is that a battery of coke<br />

ovens has a 20- to 30-year life span. This<br />

premise does not hold up when the merchant<br />

coke producer segment is analyzed.<br />

The average age of U.S. merchant batteries<br />

is 40 years. The reason for this is partly<br />

the merchant mentality. An integrated<br />

producer views their coke plant as a disposable<br />

asset, producing raw material. In<br />

the end, for an integrated producer, coke<br />

is a “make-or-buy” decision.<br />

The merchant producer knows that his<br />

battery is his livelihood and will take extraordinary<br />

steps to maintain his facility.<br />

For example, the oldest merchant battery<br />

Jeff Wallace, GTR Scales Ltd.<br />

hydro-carbon molecular units to leave<br />

almost pure carbon. The physical properties<br />

of coking coal cause the coal to soften,<br />

liquefy, then resolidify into hard porous<br />

lumps when heated in the absence of air.<br />

Coking coal must also have low sulphur<br />

and phosphorous contents.<br />

The coking process takes place over long<br />

periods of time—between 12-36 hours<br />

in coke ovens. The heat is transferred<br />

from the heated brick walls into the coal<br />

charge. From about 375°C to 475°C, the<br />

coal decomposes to form plastic layers<br />

near each wall. At about 475°C to<br />

600°C, there is a marked evolution of tar<br />

and aromatic hydrocarbon compounds,<br />

followed by resolidification of the<br />

plastic mass into semi-coke. At 600°C to<br />

1100°C, the coke stabilization phase begins.<br />

This is characterized by contraction<br />

of coke mass, structural development<br />

of coke, and final hydrogen evolution.<br />

During the plastic stage, the plastic<br />

layers move from each wall toward the<br />

center of the oven, trapping the liberated<br />

gas and creating gas pressure build-up,<br />

which is transferred to the heating wall.<br />

Once the plastic layers have met at the<br />

effect in the furnace and on the hot metal<br />

quality. A blast furnace fed with high<br />

quality coke requires less coke input and<br />

results in higher quality hot metal and<br />

better productivity. Overall costs may<br />

be lower, as fewer impurities in the coke<br />

means smaller amounts of flux must be<br />

used. Coke producers use widely differing<br />

coals and employ many procedures<br />

to enhance the quality of the coke and to<br />

enhance the coke oven productivity and<br />

battery life.<br />

GTR Scales’ unique 920i® and Sartorius<br />

application for CanmetENERGY is<br />

helping create the cleanest, most efficient<br />

coke for the steel-making industry, ensuring<br />

blue skies in the future. ▪<br />

References:<br />

Dusel, Martin, 4, March 2008, “The Coke Crisis.”<br />

www.accci.org/Dusel.pdf<br />

Ailor, David C, 8, Oct. 2003,”Principal<br />

Environmental Issues Facing the U.S. Coke Industry”<br />

www.accci.org/Ailor.pdf<br />

www.canmetenergy.gc.ca<br />

www.worldcoal.org/coal/uses-of-coal/coal-steel<br />

www1.eere.energy.gov/industry/steel/pdfs/<br />

roadmap_chap2.pdf<br />

www.ricelake.com | RICE LAKE MAGAZINE 25


inside rlws<br />

Bruce Johnson, customer service manager, is a perfect example of<br />

how <strong>Rice</strong> <strong>Lake</strong> has grown to become an international company—while still<br />

maintaining the personal customer service ethic Donald B. Johnson insisted<br />

on from the beginning.<br />

Bruce has been with <strong>Rice</strong> <strong>Lake</strong> <strong>Weighing</strong> <strong>Systems</strong> 37 years<br />

and counting. “There were fifteen employees when I<br />

came here in October of 1973. I was interested in<br />

electronics. My hobby was collecting juke boxes<br />

from the ’50s. Electronic scales were in their infancy<br />

then, and we took on a line. We went to electronics<br />

school. Don signed us up for an apprenticeship<br />

program with the state. Since they didn’t have any<br />

idea of what training was needed for a scale technician,<br />

he had to help set up the curriculum<br />

Bruce in the 1970’s answering customer questions.<br />

“Back then everyone did a little of everything. I<br />

even worked on the first electronics catalog. It was<br />

mimeographed. I called vendors, set up deliveries, checked orders, wrote specs, and took calls from customers.<br />

I developed an order pad with little boxes to check. They called it ‘Bruce’s Form.’<br />

“Part of the benefit of working with Mark Sr. is that he imparted his customer service philosophy. You had that experience<br />

back then. We had a little room where we would test products before they went out. We were so paranoid<br />

that something would go out and fail.<br />

“I guess I built a reputation for working with customers. I take any calls where there is a question that can’t be<br />

resolved. I am here to get the ball back in play.” When someone has a problem, Bruce can usually help.<br />

“I worked out our Customer Order Action Report (COAR). We came up with this because<br />

it was something we had to do. Now it is required by ISO, but we were already doing<br />

it. It’s another one of ‘Bruce’s Forms’. It has three parts. First, what did the customer<br />

say Second, what did we do to get back on the road And third, why did this<br />

happen and what can we do so it doesn’t happen again<br />

“We pick a project where errors occur and turn it around. Every once in<br />

a while you feel good because you find a gem. We might find we have<br />

two similar parts stored in bins next to each other. One of them has<br />

to move. In another case, we wanted to improve our order-taking,<br />

especially getting the correct shipping address. We had MIS<br />

change our software so that now we enter the zip code and the<br />

system brings up the city and state. Then we take the address.<br />

And we always read the contract back.”<br />

Chris Olsen, inside sales manager, adds, “Bruce is the level head<br />

for the sales and service departments. No matter what the<br />

issue, or how emotional, he always seems to find a way to help<br />

the customer in a manner that is beneficial to all parties<br />

involved. The bottom line is he knows the customer is the<br />

priority and works toward the goal of satisfying them.<br />

“Over the years Bruce has become the jack-of-alltrades<br />

with handling sales calls, online chats,<br />

warranty claims, the COAR process, and<br />

working on the root causes of our errors<br />

so we continually improve.” ▪<br />

Truck<br />

scales<br />

keep on<br />

truckin’<br />

iQUBE 2 Diagnostic Junction Box monitors and emulates load cell performance and sends a diagnostic<br />

report to keep you ahead of any load cell issue that needs your attention. iQUBE 2 tests for linearity, identifies<br />

noise, monitors for drift, and can even step in and emulate a cell to keep your truck scale truckin’.<br />

If you’re in charge of a mission-critical multi-cell weighing operation, install iQUBE 2 and breathe easier.<br />

To learn more about the ultra-fast<br />

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visit www.ricelake.com/truckin<br />

or call 1-800-472-6703.<br />

800-472-6703<br />

www.ricelake.com<br />

mobile: m.ricelake.com<br />

26 RICE LAKE MAGAZINE | www.ricelake.com


230 W. Coleman Street<br />

<strong>Rice</strong> <strong>Lake</strong> WI 54868<br />

Change Service Requested<br />

Presort Standard<br />

U.S. Postage<br />

Paid<br />

<strong>Rice</strong> <strong>Lake</strong><br />

<strong>Weighing</strong> <strong>Systems</strong><br />

Look around you. Scales are everywhere.<br />

<strong>Rice</strong> <strong>Lake</strong> <strong>Weighing</strong> <strong>Systems</strong> is too. Always<br />

developing new ways to weigh it, label it, move it,<br />

and get it out your door, <strong>Rice</strong> <strong>Lake</strong> knows weighing, big,<br />

small, and everything in-between. Off the shelf or custom made<br />

just for you, we respond and deliver—like no one else can.<br />

800-472-6703<br />

www.ricelake.com<br />

mobile: m.ricelake.com

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