Nextel™ - 3M

Nextel
Ceramic Collars and Discs 550
A new generation of reliability.

For more than a decade, 3M Nextel Ceramic Collars and Discs 312 have set the standard for
performance and reliability in the industry. Over the years, the proven durability of 3M Nextel
Ceramic Collars and Discs 312 have made them the first choice of industry leaders around the
world. Now, 3M takes this proven product to a whole new level of quality with 3M Nextel Ceramic
Collars and Discs 550.
Nextel Ceramic Collars and Discs 550 combine reliable performance and superior quality with
increased product life to save you money.
Outstanding performance when the heat is on.
Leading the way in
advanced technology.
The best value all
around.
Count on consistent 3M
product quality.
Reduced downtime for
increased productivity.
You’ve invested significant
amounts of time and money
in your diffusion furnace
and in your products.
Diffusion collars and discs
play an important role in the
operation of your diffusion
furnace. That’s why 3M
created Nextel Ceramic
Collars and Discs 550 to
meet the toughest thermal,
mechanical and electrical
performance requirements.
Designed especially for
diffusion processes, these
collars and discs assure that
you’ll get consistent,
reliable performance
time after time.
With a proven track record
of durability, Nextel
Ceramic Collars and Discs
550 offer you the best value
for your money. Simple to
install and to use, these
strong, flexible collars and
discs slide on and off quickly
and easily to save you time.
Nextel Collars
and Discs 550
assure that you’ll
get consistent,
reliable
performance
time after time.
You demand excellence
from the products you
produce. You can't expect
anything less from the
products you use. That's
why you should rely on
3M Nextel Ceramic Collars
and Discs 550. Our
reputation for dependable,
high quality products is
your assurance of superior
product performance.
Designed to provide
exceptional value, 3M
Nextel Ceramic Collars 550
can be used for
diffusion furnace process
temperatures up to 2462º F
(1350º C) and they maintain
their strength and flexibility
at continuous operating
temperatures of 2192º F
(1200º C), so they’ll last
longer and save you money.

Custom fabricated from Nextel Ceramic Textiles 550 and ceramic fiber insulation, these collars
and discs:
• Provide energy savings
• Help maintain smoother temperature profiles
• Help reduce down-time
Outstanding performance when the heat is on.
Photo Courtesy of MRL Industries, Sonora, CA
Repeatable
performance for
unbeatable
excellence.
3M, the technology leader
in advanced ceramic
materials for high
temperature applications,
created Nextel Ceramic
Collars and Discs 550 to
give you reliable, repeatable
performance. 3M quality
standards help ensure
consistent product
performance that can
improve productivity.
We’ve supplied Nextel Ceramic
Collars and Discs to the largest
original equipment manufacturers
and end users in the world.
Custom designed for a
custom fit.
3M custom fabricates collars
and discs to your specific
dimensions. Through the
years, we’ve supplied Nextel
Ceramic Collars and Discs
to the largest original
equipment manufacturers
and end users in the world.
Our superior product quality
has earned their trust, now
we’d like to earn yours.
To learn more about how
3M Nextel Ceramic
Collars and Discs 550
can work for you, call
1-800-537-4364, today.
Or you can fax us at
1-800-523-4379.
Or write to:
3M Ceramic Fiber Products
3M Center,
Building 207-1W-11
St. Paul, MN 55144-1000
Photo Courtesy of
MRL Industries,
Sonora, CA

3M Nextel Ceramic Collars and Discs 550
Product Ordering Guide
Collar Examples
Part Number: UB 141-190
• UB - Indicates part requested is a collar.
• 141- Outside diameter of process tube to be
supported (or inside diameter of collar),
expressed in millimeters.
• 190 - Diameter of hole in vestibule block (or
outside diameter of collar), expressed in
millimeters.
Disc Examples
Part Number: UR 190-25
• UR - Indicates part requested is a disc.
• 190 - Diameter of hole in vestibule block
(or outside diameter of disc), expressed in
millimeters.
• 25 - Diameter of center hole, expressed in
millimeters.
Designates
Collar
190mm
141mm
UB 141-190
Collar I.D.
Collar O.D.
For more information contact:
3M Ceramic Fiber Products
3M Center Bldg. 207-1W-11
St. Paul, MN 55144-1000
Phone: 1-800-537-4364
Fax: 1-800-523-4379
190mm
25mm
UR 190-25
Designates
Disk
Disk O.D.
Disk I.D.
IMPORTANT NOTICE TO PURCHASER
3M MAKES NO WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. All statements, technical information and recommendations contained in this
brochure are based upon tests conducted with 3M approved equipment and are believed to be reliable. However, many factors beyond the control of 3M
can affect the use and performance of 3M Ceramic Fibers in a particular application, including the conditions under which the product is used. Since these
factors are uniquely within the user’s knowledge and control, it is essential the user evaluate the 3M Ceramic Fibers to determine whether this product is
fit for the particular purpose and suitable for the user’s application.
LIMITATION OF REMEDIES AND LIABILITY: If the 3M product is proven to be defective THE EXCLUSIVE REMEDY, AT 3M’s OPTION, SHALL
BE TO REFUND THE PURCHASE PRICE OF OR REPLACE THE DEFECTIVE 3M PRODUCT. 3M shall not otherwise be liable for any injury, losses
or damages, whether direct, indirect, special, incidental, or consequential, regardless of the legal theory asserted, including tort, contract, negligence,
warranty or strict liability.
3M Ceramic Fiber Products
3M Center, Building 207-1W-11
St. Paul, MN 55144-1000
Printed on 50% recycled
waste paper, including 10%
post-consumer waste paper.
© 3M 1997 98-0400-1404-9 (67.2)DPI