Two Track Trimmers

Extended sensor arms are standard on the HEM 4502.  Telescoping sensor arms
allow sensoring from stringlines up to 40 feet apart. The HEM 4502 has sensoring and steering capabilities from left or right, and has hydraulic slope control.

Hydraulic lift arms, to assist in removal and loading of the head, is standard. Wrap around console gives the operator excellent vision of all machine functions. The high capacity rear delivery belt can deliver material to the outside of the stringline or to awaiting trucks.

 

Standard Machine Equipment
	C-12 425 HP Caterpillar Diesel Hydraulic Oil Reservoir 420 gal. Fuel Reservoir 136 gal. 2 Hydraulic System Heat Exchangers with electric fan
Hydraulic Pump System
	• Two triple stage hydraulic gear pumps • One double stage hydraulic gear pump • One pressure relief manifold for convenient pressure adjustments
Two Crawler Tracks
	• Length 11' 11" • Width 16" • 6" pitch-triple grouser shoes • 49:1 gear reduction with two speed operation • Travel speeds 0-72 ft/min
Light System
	• For night operation
Grade Ski
	• For following grade on previous cut or existing slab
Two Belt Conveyor System
	Rear conveyor • 36" x 30' Rear Conveyor • Belt Speed 420 ft/min • Hydraulic swing • Hydraulic elevation • Hydraulically powered, direct drive, cleated Lower Conveyor • 36" x 15' 8" Lower Conveyor • Belt Speed 420 ft/min • Hydraulically powered, non-cleated
12'6" Sectional Trimmer Head
	Rear conveyor • Dual, internally mounted drives • 32" diameter trimmer head • 104 interchangeable carbide tip cutter teeth • Internally mounted drive system • Hydraulically controlled side forms • Forward rotation
Emergency Shutdown System
Dual Grade and Cross Slope Grade Sensing System
	Dual hydraulic grade sensing system • Grade sensing from right, left or both sides • Slope control from right or left side • Telescoping sensor arms to allow stringline controls on both sides of the trimmer, simultaneously
Extended Sensor Boom Assembly
Steering System
	• One hydraulic stringline sensor • Steer from right or left hand side of machine • Automatic and manual steering, controlled from   operator's platform
Intermittent Shut-Down System
	• Single switch operation • Electronic over hydraulic • Controls all critical functions of machine: grade, travel,    trimmer head, both heads
Operator's Platform
	• Hydraulic system pressure gauges: grade, travel,   trimmer head, belts • Hydraulic controls: travel, grade, belts, trimmer head • High visibility "wrap around" console • Engine controls and monitoring devices mounted on console • Safety railing • Engineered for easy monitoring of all machine functions • Umbrella • Seat
Front Lift Arms
	• Allows trimmer to self load the cutter head
Transport Dimensions
	• Width (head removed): 10'10" • Length (head removed): 42'6" • Base machine weight (head removed): approx. 49,000 lbs. • Trimmer head weight (12'6"): approx. 11,000 lbs.
Optional Equipment
	• 10'6", 14'6", and other custom width trimmer heads • Custom length rear belt • Poly pads • Concrete placer hopper with complete lower delivery belt • High pressure water system • Spare parts kit • Sensor line kit • Interchangeable carbide-tip conical cutter teeth • Rear steering

 

 

HEM'S machines can be found on major airport jobs around the world and all across the United States. Our slip form pavers can be found paving:

• canals
• tunnels
• street
• interstate highways
• taxiways
• and runway

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