SPECIFICATIONS FOR SMOOTH DRUM VIBRATORY COMPACTOR
The smooth drum compactor purchased under these specifications shall be a used 2013 or newer with
600 or less hours model designed and built for compaction of granular and semi-cohesive soil. These
specifications are minimum requirements and are intended to govern the size and type of unit purchased.
Any exceptions or variations from these basic specifications must be stated. Failure to completely
describe the equipment bid herein may result in rejection of the entire bid. The right is reserved to
evaluate variations from these specifications and to award the contract for the compactor which best fits
the needs for the overall application parameters.
GENERAL
Unit shall be a self-propelled, smooth drum design for use in compaction of granular and semi-cohesive
fill materials. Smooth drum and tires shall be driven to provide optimum traction and gradeability.
OPERATING WEIGHT
Operating weight, including lubricants, coolants (when required), fuel, Roll-Over Protective Structure
(ROPS) and operator shall be a minimum of 21,450 pounds.
Operating Weight ____________lb
ENGINE
Water cooled diesel engine with minimum of 133 hp at installed
governed speed.
Yes ____
No ____
Minimum 64 gallon fuel tank capacity.
Yes ____
No ____
Two stage heavy duty dry air filter with restriction indicator.
Yes ____
No ____
Ground level, engine oil, air filter and coolant inspection and service capability.
Yes ____
No ____
Minimum 55 ampere alternator.
Yes ____
No ____
Heavy duty battery with 140 ampere-hour rating.
Yes ____
No ____
Minimum 84” rolling width and 59” diameter.
Yes ____
No ____
Minimum 0.95” drum shell thickness ensuring strength and long wear life.
Yes ____
No ____
Scraper bars to be located at both front and rear of both drums,
maintaining a cleaning action for both forward and reverse travel
directions. To be adjustable.
Yes ____
No ____
Drums to be suspended within roller frame by a set of shock absorbing
rubber elements.
Yes ____
No ____
DRUMS
DRIVE
Hydrostatic drive to both front drum and planetary drive axle.
Yes ____
No ____
Tire drive shall incorporate a Non-Spin differential.
Yes ____
No ____
Tires shall be 23.1-26/12PR diamond tread.
Yes ____
No ____
Hydraulic system to be safe-guarded by a 12 micron absolute rated oil filter.
Yes ____
No ____
Speed range offering compaction and transport speeds to a
minimum of 8.4 mph.
Yes ____
No ____
Service braking to be within hydrostatic drive system design.
Yes ____
No ____
Independent Spring-Applied, Hydraulically-Released multiple disc
emergency and parking brakes on each axle shaft. For safety,
failure of one SAHR brake must not affect operation of the other.
Yes ____
No ____
Parking brake engaged indicator to be on operators console.
Yes ____
No ____
Minimum 2 amplitude settings of 0.035” and 0.071”.
Yes ____
No ____
Minimum of 53,100 pounds centrifugal force in high amplitude settings
Yes ____
No ____
Vibration frequency to be a minimum of 2160 vpm in low amplitude.
Yes ____
No ____
Oil bath eccentric bearing lubrication for reduced maintenance requirements.
Yes ____
No ____
Thumb button vibration stop/start switch located on drive lever for
operator comfort.
Yes ____
No ____
Hydrostatic direct eccentric drive to the drum minimizing maintenance costs.
Yes ____
No ____
Articulation joint to be completely maintenance free.
Yes ____
No ____
Tires to track within drum width for stability and safety on embankment edge and roadway shoulder applications.
Yes ____
No ____
Oscillation ±12 degrees minimum to ensure drum and tires contact
on irregular terrain.
Yes ____
No ____
Articulation ±35 degrees for optimum maneuverability.
Yes ____
No ____
BRAKES
VIBRATION SYSTEM
FRAME
Drive motors, hydraulic hoses and access steps to be located
within drum frame width.
Yes ____
No ____
External drain points for engine oil, coolant and hydraulic oil.
Yes ____
No ____
Minimum 19.3” all around curb clearance.
Yes ____
No ____
Drum edge to outside frame lateral overhang to not exceed 2.4”
on each side of roller.
Yes ____
No ____
Inside turning radius at drum to be approximately 138”.
Yes ____
No ____
Overall length shall not exceed 230”.
Yes ____
No ____
Overall width shall not exceed 89”.
Yes ____
No ____
Hydraulic test ports for travel/vibration/steering.
Yes ____
No ____
Modular, bolt-on center joint design, maintenance free.
Yes ____
No ____
Articulation lock to avoid pinching during service or transport.
Yes ____
No ____
No grease daily maintenance points.
Yes ____
No ____
Platform to be vibration and shock-isolated by a series of rubber mounts.
Yes ____
No ____
Operator’s seat is to be fully adjustable.
Yes ____
No ____
Drive lever to incorporate forward/neutral/reverse travel selection
and vibration stop/start.
Yes ____
No ____
Instrument and controls to include: Hourmeter, Acoustic horn,
Parking brake lamp, Ignition switch, Back-up alarm and a Lockable
vandal cover for instrument protection.
Yes ____
No ____
Audible/visual warning indicators for engine oil pressure, engine
coolant temperature, electrical charge.
Yes ____
No ____
Yes ____
No ____
CLEARANCES
MAINTENANCE
OPERATOR’S PLATFORM
ROPS/FOPS
ROPS/FOPS that meets or exceeds current safety standards.