Full Specifications - Stepp Manufacturing

STEPP SRM 10x120(Asphalt Recycler)
SRM 10x120 Self Loading
SPECIFICATIONS
12325 River Road, North Branch, MN 55056~ Phone: 651-674-4491~ Fax: 651-674-4491 www.steppmfg.com

Quick Specs for The Stepp SRM10-120 Asphalt Recycler/Mixer
Due to continued product development, specifications subject to change without notice or obligation.
All components as specified or equal.
Kettle Pumping System
Pump Model. ....................................... ……………………………………….Viking HL32®
Relief Valve......................................... ……………………………………….…. WPC Valve
GPM Output Rating ............................ ………………………………………………20 gpm
Pump Mounting................................... …………………………………..……...Submerged
Pump Drive ...............................…..Hydraulic, reversible, variable speed with LCD Display
Engine
Manufacture………………………………..………………………………………. Kubota®
Model .................................................. ……………………..…………………….. V1505EB
Displacement....................................... ……………………...………………….81 cubic inch
Number of Cylinders…..…………………………………………………………………..(4)
Horse Power ........................................ ………………..……………………………35.1 HP
Fuel Type............................................. …………………..…………………………….Diesel
Cooling................................................ …………………….…………………………..Liquid
Hydraulic System
System Type ........................................ ………………...…..Eaton 7000 Series Load Sensing
Pump Displacement ............................ ………………………………..Variable 0 to 1.9 cu in
Control type......................................... ……………………..Forward/Reverse Flow Control
Electric over manual operated, expandable manifold cartridge valve
Hydraulic powered hopper agitator, hopper loading doors, sub. pumping system and
loading conveyor
Reservoir Capacity……..………………………………………………………….30 Gallons
Filtration………………………….……………………………………………….10 Microns
Chassis
Number of Axles ................................. ……………………………………..………..Two (2)
Axle Capacity...................................... ………………………………………..6000 lbs. each
Tire Size .............................................. ……………………………………….225 x 75 R15
Brake Type…………………….…………………..Electric Std (Hyd Optional), all 4 wheels
Landing Gear Static Capacity ............. ………………………………………..8,000 lbs each
Screw jack Quantity……...…………………………………………………………...One (1)
Hitch Type ........................................... ……..…….3" Pintle Ring adjustable from 26" to 32"
Frame Material .................................... ..............................2" x 6" x 3/16 Rectangular Tubing
Lighting ............................................... ……………………Approved with Breakaway Kit
Recessed Grometed Lights………………………………………………………Standard

Dimensions
Length.…………………………………………………………………… ……...……234 in.
Width .................................................. ………………...…………………………..…...99 in.
Height………………… ……………………………………………..…….Operating 116 in.
Weight (approx)………………………………………………………..…………...5,350 lbs.
General
Fuel Tank Capacity.............................. …………………………………..……... 30 Gallons
Preheat Hopper
Capacity……………………………………………………………………………….10 cu ft
Opening Dimensions………………………………………………………………. 23" x 38"
Loading Conveyor
Belt………………………………………………………………………... 16" Wide Cleated
Hydraulic Motor……………………. 4.0 Cubic inch Hydraulic Motor W\ Forward-Reverse
Mixing Chamber
Chamber Type……………………………………………………..Continuous Batch Mixing
Mixing Style……………………………………………………………….. Rotating Pugmil
Liner Type…………………………………………………………….U-shaped, Replaceable
Combustion Chamber Liner Material……………. Replaceable ¼" Wear Resistant AR Steel
Insulation Type and Thickness………………………….. 2" Fiberglass & Cerwool, 2" thick
Pugmil Drive, Hyd Motor……………….....5.75:1 Gear reduction driven by 18/9 ci 2 speed
Pugmil:
Pugmil Dimensions………………………………………………Length 57" x Diameter 27"
Shaft Size………………………………………………………………………….2½" square
Paddle Size……………………………………………………………... Replaceable 4" x 5"
Paddle Material……………………… Reversible, Replaceable,¼" Wear Resistant AR Steel
Number of Paddles……………………………………………………………………........24
Mixing Chamber Heating System
Burner Type ……………………………………………………... Indirect Diesel, Forced Air
Number of Burners…………………………………………………………………...Two (2)
Fuel Type……………………………………………………………………………… Diesel
Manufacturer………………………………………………………………………..Beckett®
BTU Output ………………………………….up to 420,000 BTU each - 840,000 BTU Total
CONTINUED ON NEXT PAGE

What does it do?
The SRM 10-120 will recycle asphalt millings into new 300°F hot mix at a rate of up to
3 Ton per hour. This rate can be achieved even at an outside temperature of 20°F giving
you usable production rates year round.
Custom mixes from raw materials can also be created with the SRM 10-120. Different
sized aggregate, chips, or even sand, can be used to make the perfect mix for your special
needs.
Kettle
Capacity………………………………………………………………………….120 Gallons
Tank material………………………………………………………………….... 14\12 gauge

The Stepp SRM 10-120 120 Asphalt Recycler/Mixer
•Do you have access to asphalt millings?
•Would you like to perform road repairs in the off
season when the hot mix asphalt plants are closed?
•Would you benefit from being able to perform
permanent pot hole repairs, using 300°F hot mix
when the temperature is below freezing?
•Would the ability to create fresh 300ºF hot mix anytime of the year, at any
temperature, be beneficial to your road maintenance program?
•Would you be interested in a machine that can recycle asphalt millings into 300ºF hot
mix at a rate of 3 Ton per hour?
•Does the ability to create custom hot mix blends sound intriguing?
If you answered yes to any of these questions, the SRM 10-120 Asphalt Recycler/
Mixer from Stepp Mfg. may be what you need.
In our daily contact with road maintenance departments like yours, we heard a common
concern…
"When we use the expensive cold mix for pot hole repairs, it seems to last only
a few days to a week at best, then we're out there doing the same repair over and over
again, there has to be a better way."
"How can we make permanent, cost effective road repairs after the hot-mix
plant closes?"
We listened to your concerns and questions, and then our engineers took the challenge
to design a portable, easy to use, and affordable machine that can recycle asphalt millings
or create hot mix from raw materials at a rate fast enough to keep up with your
busy road repair schedule.
The result is the Stepp SRM 10-120 Asphalt Recycler/Mixer.

What does it do?
The SRM 10-120 will recycle asphalt millings
into new 300°F hot mix at a rate of
up to 3 Ton per hour. This rate can be
achieved even at an outside temperature of
20°F giving you usable production rates
year round.
Custom mixes from raw materials can also
be created with the SRM 10-120. Different
sized aggregate, chips, or even sand, can
be used to make the perfect mix for your
special needs.
The SRM 10-120 uses an indirect method
of heating. The flame does not come in
contact with the materials being heated.
This indirect method of heating reduces
smoke emissions, burning off the oils from
your millings, and fire dangers.
The indirect heating method allows
approx. 90% of the oils to be retained.
Thus only about 1½ to 1¾ gallons of oil
need to be added for each yard of recycled
millings. The on-board heated kettle has a
capacity of 120 gallons allowing you to
recycle about 50 to 60 yards without refilling
the kettle. Of course if you are creating
hot mix from raw materials the oil use will
be higher.

Operation
The machine is completely self contained
and portable. A properly equipped ¾ ton
pickup or larger truck is needed to pull the
unit. The SRM 10-120 is equipped with
two (2) 6000 lb. axles, electric brakes, and
DOT approved lighting for safe and easy
transporting.
Millings are loaded into the preheat hopper
on top of the machine with the aid of a
operator controlled loading conveyor. At
the operators discretion the milling are
dropped into the recycling hopper and
processed into new, usable hot mix for pothole
repair.
All heating controls are located in the control
panel on the right rear of the machine.
Operation of the heating system only requires
the power switch to be placed in the
ON position and the thermostat for the kettle
portion of the machine to be set to the
desired temperature.
The feed, mixing, and blending rates are
all controlled from the same control panel
as the heating system for convenient operation
of the machine.
Once the SRM 10-120 is at operating temperature
and the Batch Timer\Counter are
adjusted properly, no further steps are required
to operate the machine other than
monitoring the operation and perhaps
making minor adjustments to the timer. Of
course you have to load millings into the
machine... then recycled asphalt discharges
from the rear of the machine in required
quantities to the site of road repair.

How it's built
The SRM 10-120 consists of a preheat hopper located
on top of a heating/mixing chamber. The
hopper is heated from the exhaust of the two diesel
burners located in the heating/mixing chambers.
Loading of the preheat hopper is accomplished by
a hydraulic driven loading conveyor that is positioned
below on the hitch for ground loading or
can be loaded from a towing vehicle with the appropriate
attachments. A rubber cleated belt assures
product travel during operations and is operated
by hydraulic power.
The heating/mixing chamber is equipped with a
pugmill for mixing and blending. The pugmill is
driven by a separate hydraulic motor with a gear
reduction.
The heating/mixing chamber is positioned horizontally.
The chamber heats, dries, and pulverizes
the asphalt millings or raw aggregate. Then
oil is added and blended, and the mix is further
heated up to the proper temperature (approx. 300°
F). The new hot mix then discharges from the
chamber out the rear of the machine.
The mixing chamber liner is replaceable, as are
the paddles on the pugmill. Both the liners and
the pugmill paddles are constructed of long life
wear resistant AR ¼" plate steel.
The heating/mixing chamber is heated with two
diesel fueled burners in an indirect method. This
means the flame does not come into contact with
the material being heated in the chambers. This
helps prevent the oils from being burnt off the aggregate.
Money is saved as approx 90% of the
oils are retained reducing the amount of oil
needed for the recycling process.

The oil used in the recycling process is heated in a
120 gallon kettle mounted along side the heating/
mixing chamber. The kettle is heated with a diesel
burner firing down a flue submerged in the oil in
the kettle. The temperature is controlled by a 0 -
550°F thermostat. The temperature of the oil in
the kettle is shown on an LCD digital display in
the control panel.
The kettle contains a pump, driven hydraulically,
to pump oil into the mixing chamber at a controlled
rate. The pumping rate is adjustable with
the hydraulic controls and is monitored on an
LCD digital display. The pump also has the ability
to be used with a tack wand, circulate the oil
within the kettle for quicker heat-up times, and to
purge material from the pump and plumbing for
storage.
Power for the entire machine is supplied by a turbocharged
liquid cooled diesel engine. The engine
drives a hydraulic pump to operate the pugmil,
the pump on the kettle, the preheat hopper
doors and the loading conveyor. The hydraulic
system consists of the reservoir, filter, pump, bidirectional
controls, flow controls, drive motors,
magnetic tach pickups, and digital displays.
An on-board fuel tank supplies fuel to the engine
and all three burners. Four fuel filters are installed
in the system, one for each burner, and one for the
engine. Each burner and the engine also has its
own fuel pump. These independent fuel systems
allow easier troubleshooting In most cases, malfunction
of one burner will not adversely effect
operation of the machine.
The chassis of the SRM 10-120 is constructed of
heavy duty rectangular tubing. The running gear
consists of tandem axles with electric brakes and
leaf spring suspension. DOT approved lighting
and a 3" pintle ring hitch are included.

OPTIONS, OPTIONS, OPTIONS!!!
Washdown System:
Consists of a 12volt pump
with hand spray wand and
15’ hose to wash tools and
interior of hopper.
Strobe Light:
12 volt powered.
Controlled from operators
control panel. Strobe
mounted on top rear of the
unit or flush mounted.
Shovel Cleaning
Compartment:
Shall be constructed of 12
gauge material with
splash guard compartments,
drain plug, and
rain tight cover. Shall
hold (4) four shovels.
Fire Extinguisher:
10 lb ABC Dry
Chemical fire
extinguisher
Spare Tire:
Spare tire with
holder mounted onto
frame of unit
Front Step w/Railing:
Shall add easy access.
To be constructed of
grip strut grading. Shall
be bolted to frame.

Tool Box:
Constructed of 12 gauge steel with cover and
locking hasp 12" x 12" x 36".
SMV-Sign:
DOT Approved Slow
Moving Vehicle Sign.
Engine Enclosure:
Lockable, vandal proof with sound
dampening.
Hose Reel:
Hose reels available for
tack hoses.
Other Options (not pictured):
• Hydraulic Tools
• Hydraulic Tool Power Attachment
• Dual Hyd. Hose Reel for Tool Attachment
• Heated 15’ or 20’ Hose
• Heated overhead Boom w/8’ or 12’ Hose and Steel Wand
• Infrared Sensor
• Wheelbarrow Extension w/Storage
• 10 cubic foot Shovel Platform
• Unloading Conveyor