SRM 10x120Aspahlt Recycler Mixer Trailer with Asphalt
Additive Tank
Bidding Specifications
1.0 INTENT
It is the intent of this specification to provide for the purchase of one (1) new and unused
10x120Aspahlt Recycler Mixer Trailer with Asphalt Additive Tank to be used for the purpose of
recycling old asphalt to a new useable recycled hot mix patch material.
The following specification is based upon a Stepp Mfg SRM10x120 Asphalt Recycler. The Public
Works Department has evaluated different styles of asphalt hotbox equipment and has determined
that this product is best suited for the DPW needs in terms of quality and features. This specification
shall not be interpreted as restrictive but rather as a measure of quality and performance against
which all other Asphalt Recyclers will be compared.
In comparing proposals, comparison will not be confined to price only. The successful bidder will be
one whose product is judged as best serving the interests of the DPW when price, product, quality
and delivery are considered. The DPW also reserves the right to reject any or all bids or any part
thereof, and to waive any minor technicalities. A contract will be awarded to the bidder submitting the
lowest responsible bid meeting the requirements.
STEPP SRMx120 SPECIFICATIONS
Body and Trailer
Portable unit shall be mounted on a NATM approved trailer
Frame shall be compact, all steel, welded construction 2”x6”x3/16”
Frame shall meet or exceed NATM safety load bearing standards
Length shall be approximately 21’ (including trailer)
Width shall be a minimum of 102" for increased stability
Height shall not exceed 9’ 5” (including loading conveyor)
Weight shall not exceed 8,500. lbs. (including trailer)
Pre-Heating Bin
Shall include a top loading Pre-Heat bin with minimum 11 Cubic foot capacity
Exhaust heat shall allow preheating of RAP, reducing fuel consumption.
Pre-Heat hopper shall have a minimum loading opening of 23" x 38"
Loading Height shall not exceed 93”
Pre-Heat hopper shall contain hydraulically operated loading doors.
Loading doors shall be activated via electronic switch from control panel.
Loading System
Shall include conveyor belt loading system for materials
Shall allow RAP to be loaded directly from towing vehicle
Shall be self-loading and shall not require a loader or auxiliary equipment
Minimum production capability shall be up to 3 tons per hour allowing for variation due to excessive
moisture or varying material quality and varying ambient temperatures.
Recycler Mixing System
Shall be capable of maintaining a heated batch of hot mix inside the mixing chamber for up to 8 hours
Mixing chamber liner shall be replaceable and constructed of AR400 wear resistant material
Replacing mixing chamber shall not require torch cutting or welding, but will be of a bolt on off design
Material Mixer shall be hydraulically driven and direct coupled to gear reduction which shall be direct
coupled to hydraulic drive motor
Hydraulic drive motor shall be a minimum of 11.9 ci
Shall be equipped with replaceable mixing paddles
Shall utilize solid, AR steel, abrasive resistant replaceable paddles
Melter Kettle & Tack Systems
Shall include a heated additive pumping system to allow liquid material to be added to the mixing
chamber
Shall include 120 gallon, heated melter kettle with internal flue for burner system
Shall be capable of melting and pumping a metered amount of liquid asphalt or other additives to
mixing kettle to enhance the quality of the RAP
Shall include a heated, spray tack coating system, including an overhead boom with hose and wand
to spray tack coat materials to repair site
Shall utilize flues with submerged heating tubes, minimum 6” diameter
Flues shall have a minimum heat transfer area of 3300 square inches
Burner shall be forced air with spark ignition and flame out protection
Burner shall be a forced air diesel burner.
Burner shall be minimum of 105,000 btu.
Burner flue liner shall be stainless steel for extended life
Kettle shall be insulated with steel sheet metal outer cover
Kettle shall have automatic temperature controls
Thermostat and temperature gauge shall be located in control panel
Tack pump shall have a minimum capability of 20gpm
Kettle pumping system shall be submerged for fast heating & start up
Hydraulic motor shall be a minimum of 2.8 ci.
Kettle pump shall have forward-reverse
Control panel shall display gallons pumped in 10ths of gallons pumped
A material safety loading door shall be included
Shall include minimum 15 gallon flush tank
Controls & Control Panel
Controls shall be an IFM Color display with a can buss controller to operate hydraulic and electric
operations on the unit.
All controls shall be located curbside rear for safety.
All controls shall utilize electronic can buss switches for operator convenience
All controls shall be electric over hydraulic
All electronic controls shall include redundant manual hydraulic controls
Operator Station Controls shall include:
A) Burners On/Off
B) Burner Timer
C) Conveyor Off/Forward/Reverse
D) Pre-Heat Bin Door Open/Close
E) Mixer Mix/Dump/Off
F) Mixer Low/High
G) Additive-Tack Pump Forward/Off/Reverse
H) Kettle Burner On/Off
I) Kettle Auto Temperature Control Thermostat
J) Liquid pumped Gallons Meter
k) Burner liner min/max temperature controls
l) Liner temperature
m) Safety lights operation
n) Operator warning indicator
o) Batch counter
Engine panel shall include:
A) Keyed Ignition Start
B) Engine Oil
C) Battery Volt meter
D) Temperature over limit
E) Low oil/High Temp Shut down
F) Hours Meter
Safety
Melter kettle shall be enclosed with 2" high temperature fiberglass insulation and steel outer sheeting
for low heat transmission
Recycler shall include Emergency Safety Shutdown
Tack Kettle shall include safety loading door
Conveyor shall include side rails to prevent spillage
Engine
Engine manufacturer shall be Kubota
Engine shall meet all US emission standards tier 4.
Engine shall be capable of running on BioDiesel #5
Engine shall be liquid cooled
Engine shall be a minimum 4 cylinder engine
Engine horsepower shall be a minimum 36 HP
Engine displacement shall be a minimum 81 cubic inch
Engine shall be equipped with 12 volt integral starting system, key start
Engine shall be mounted to frame on a low-vibration-mount bracket system
Electric current shall be provided by an electric 12-volt DC battery
Engine shall have a manually operated crankcase oil drain valve to direct drain oil away from recycler
Fuel tank shall be a minimum 30 gallon diesel fuel tank
Engine shall have a full flow spin on oil filter
Engine shall have a replaceable fuel filter
Engine Enclosure
A lockable, weather protector, vandal proof, vented enclosure for the engine. Enhances overall
security and appearance. Color to match.
Hydraulics
Hydraulic system shall be driven by the engine via a hydraulic pump directly mounted to the engine
Hydraulic pump shall utilize a load sensing system with a variable pump displacement of 0 to 1.9
cubic inches
Hydraulic reservoir capacity shall be a minimum of 30 gallons
Preheat hopper doors shall open and close via a hydraulic cylinder
Hydraulic Valve shall be a Force America ADD-A-Fold valve with can buss controller
Mixing Chamber Heating System
Shall utilize bottom fired heating system radiating heat through
The mixer walls
Shall circulate the exhaust heat through the mixing chamber
Shall utilize twin (2) burners
Burners shall be capable of burning bio-diesel as well as diesel fuel
Burner output capacity shall be minimum 840,000BTU
Burners shall be diesel fueled forced air
Burners shall be manufactured by Beckett Corp
Burner operations shall be controlled from control panel.
Burner system shall have automatic flame-out, fault sensing and strobe light warning.
Shall include adjustable burner timer, shutting off burners upon countdown
Unloading
shall be capable of unloading full batch in 2 minutes or less
Shall have Low and High discharge speed
Discharge functions shall be operator controlled from control panel
Shall include a folding shovel platform
Shovel platform shall allow hot mix to be discharged to shovel platform, ground or loader bucket.
Shall include a grain door style discharge with handle
Trailer
Shall be DOT approved, tandem axle trailer
shall utilize electric brakes on all four wheels
Shall be minimum 12,000 lbs GVWR rating
Shall be fitted with a 26"-32" height adjustable hitch.
Perimeter and tongue frame members shall be constructed using heavy wall steel tube with a
minimum thickness of 2”x6”x 3/16”
Suspension shall use a tandem leaf spring type minimum of 6000# each with a one piece bolt on
shackle
Hitch shall be Pintle style ring
Shall utilize US standard axles. No other standard will be accepted
Shall utilize US standard steel wheels. No other style will be accepted
Trailer electrical system shall be 12 volt DC
Turn signals and stop lights shall be sealed beam, DOT compliant
Reflectors shall be appropriately mounted on the unit
Lights
Combination stop, turn, and clearance lights with license plate bracket wired in a protective loom with
4 prong connector.
Lighting options are as follows:
Standard 2 light system or 2 light LED system;
Optional 4 light system: 2 separate lights for stop and turn signal, located on the rear on each side of
the unit; or 4 light LED system: 2 separate LED lights for stop and turn signal, located on the rear side
of each unit.
Paint
Surfaces of the unit will be properly prepared and primed per standard industry practices. The
machine shall be painted in your choice of High Visibility Safety Orange, Yellow or Black. Custom
colors shall be available, upon request. Shall have a two (2) part polyurethane paint.
Warranty
Engine Manufacturer’s warranty shall be minimum of 3 years
Recycler manufacturer’s warranty shall be minimum of 1 year
Delivery
Equipment shall be furnished fully assembled, serviced and quality checked
Two operator and parts manuals shall be furnished with the unit
Unit shall be delivered to DPW US facility as indicated
Delivery shall be 120 days or sooner from arrival of purchase order
Optional Equipment
Spare Tire with Mount
Spare Tire mounted to the trailer frame
Electric over Night Heat for Tack Tank
1500Watt 110Volt to keep oil heated in the kettle for quick start up times.
Wash-down System
12 volt spray system with 5 gallon tank and spray wand with nozzle. For spraying tools and shovel
platform with nonstick solvent.
Wash-down Hose Reel
Hose reel with auto rewind for wash-down system.
Strobe Light
Beacon mounted strobe light.
Fire Extinguisher
10# fire extinguisher mounted.
Tool Box
Mounted in the front of the trailer to store tools.
SMV sign
Slow Moving Sign mount on the rear of the unit.
Manual Holder
Shovel Cleaning Compartment
For storing and keeping shovels clean in a solvent bath.
Arrow Board
Mounted in the rear for directing oncoming traffic, LED amber.
Front Step with Railing
Shall add easy access to the towing vehicle. To be constructed of grip strut grading. Shall be bolted
to frame.
Stainless Steel Tool Holders
Spring loaded tool clamps will hold anything with a handle firmly.
Unloading Conveyor
Replaces shovel pan to aid in the loading of hot boxes or dump trucks.
Heated Overhead boom with 8’ Hose and Steel Wand
Electric Heated overhead boom, hose and wand prevents oil from setting up in the hose and wand.
Only recommended with high temperature asphalts.
Heated Overhead Boom with 12’ Hose and Steel Wand
Electric Heated overhead boom, hose and wand prevents oil from setting up in the hose and wand.
Only recommended with high temperature asphalts.
Aluminum Wand
Lighter weight tack wand.
Hose Reel for Tack Tank
Spring Rewinding hose reel. Not available heated overhead boom option,
Hydraulic Tool Power attachment
Power beyond for running hydraulic power tools.
Hydraulic Jack Hammer
Stanley BR67 Hydraulic jack hammer for cleaning up potholes.
Hydraulic Tamper
Dual Hydraulic Hose Reel for Tool Attachment
Spring Rewind hose reel for hyd tools.
Deduct Liquid Additives tack Kettle
Platform to replace Additive Kettle
Hydraulic Surge Brakes
Hydraulic Surge Brakes in lieu of electric brakes.