Harrington’s Superior Load Positioning
For general use on bridge, gantry or jib cranes, as well as monorails, this standard headroom Harrington monorail style trolley hoist combines versatility and performance.
CAPACITY
STANDARDS
- NFPA 70 “National Electric Code”
- ASME B30.16, “Safety Standard – Overhead Hoists (Underhung)”
- ASME HST-4, “Performance Standard for Overhead Electric Wire Rope Hoists”
BODY
- Standard headroom configuration
ROPE SYSTEM
- Premium grade provides high resistance to fatigue and wear
- Spring-tensioned rope guide keeps the rope securely in the grooves on the drum
HOOK
- High strength forged steel
- Capable of swiveling 360 degrees under load
- Top and bottom hooks have heavy-duty hook latch
- Machined carbon steel bottom block sheaves
OPERATION
- Triple reduction helical gearing for smooth, quiet operation with minimum vibration
- Electro-Mechanical load limiter prevents lifting of over capacity loads
- External limit switches protect against hook overtravel
BRAKE
- Conical rotor brake virtually eliminates brake issues
- Fan cooled to ensure long life
MOTOR
- Hoist and trolley feature a heavy-duty fan cooled (TEFC) motor
- Class F insulation
- Includes thermal protection
- Finned cast aluminum housing for maximum durability
RUBBER BUMPERS
- Reduce mechanical impact against trolley stops and are required for trolley hoist installation on overhead bridge cranes
DUAL TREAD WHEELS WITH GEAR GUARDS
- Flat and tapered tread section is ideal for S or W beams
- Ensures smooth tracking on wide flange beams common in industry
- Gear guards protect gear ring and flange, as well as personnel
EXTENDED WHEELBASE DESIGN
- Larger wheelbase than competitive units offers more stable travel
- Provides better load distribution over the beam to reduce beam loading
DUAL-SIDE TROLLEY DRIVE
- Two driven wheels offer better traction for improved operator control
- Driven wheels on opposite sides of the trolley provide smoother operation with less racking and skewing
HEAVY-DUTY TROLLEY DRIVE
- Fan-cooled TEFC drive motor provides long, trouble-free service
- IP55-rated, suitable for outdoor service and adds extra protection for indoor applications
- Helical gear drives in oil bath provides cool, quiet and smooth operation
- Trolley motor design provides smooth acceleration
