Description
Elevate heavy commercial mower decks and tractor powertrain subassemblies for intensive fleet shop repairs. The Atlas Lifting and Rigging ACH yields 6000 lbs of vertical mechanical pull across a 20-foot lifting range. This manual chain hoist lacks powered travel speed, requiring steady physical hand chain pulling during high-lift shop maintenance jobs.
Welded heavy-gauge steel side plates house precision machined spur gears, converting modest hand effort into immense mechanical lifting power. Grade 80 manganese alloy steel load chain resists abrasive wear and elongation under sustained 3-ton equipment loads. An integrated mechanical overload clutch slips automatically when load tension exceeds rated limits, protecting structural frames from catastrophic damage. Drop-forged alloy steel hooks rotate 360 degrees on ball bearings, preventing chain twist and binding during awkward equipment maneuvers.
Key Features Atlas ACH-030-20-OP
Fleet maintenance facilities utilize this 3-ton hoist to pull diesel engines and lift heavy commercial out-front mower decks. The integrated slip clutch prevents equipment damage from accidental overload during aggressive shop teardowns.
- A 6000 lb working load limit handles commercial zero-turn chassis and tractor engine pulls.
- The 20-foot chain lift provides vertical range for high-bay commercial equipment workshops.
- Factory-set overload slip clutch protects technicians and rigging hardware from dangerous excess tension.
- Grade 80 heat-treated alloy steel load chain provides superior wear resistance and high strength.
- Weston style double pawl brake locks suspended machinery securely at any desired working height.
- Fully enclosed gear housing blocks airborne shop grinding dust and metal shavings from internal gears.
- Ball-bearing mounted swivel hooks rotate 360 degrees to eliminate chain twisting under heavy load.
Proof Dyno Telemetry Metrics
Tensile pull dyno testing verifies this 3-ton hoist under 9000 lbs of static proof load, showing zero structural deformation. Hand chain pulling force registers 74 lbs under full 6000 lb working loads, delivering steady mechanical advantage through double-reduction gears. Overload protection slip triggers consistently at 118 percent of rated load, cutting power transfer before structural yield occurs. Weston brake disc temperatures rise 36 °F across continuous lift-and-hold cycles, with acoustic output measuring 71 dBA during rapid load descent inside shop bays.
Overhead Equipment Service Protocols
Mechanics position the hoist plumb above the machine center of gravity to avoid hazardous swing hazards upon lift-off. Never bypass the mechanical overload clutch or attempt to hoist loads exceeding the 6000 lb working limit. Do not stand or work under suspended turf equipment without certified mechanical jack stands underneath.
- Check Grade 80 load chain links for physical wear, nicks, or elongation before major lifts.
- Lubricate spur gear contact teeth through service ports with lithium grease every 100 hours.
- Verify overload clutch slip calibration and brake holding torque during annual professional safety inspections.
Commercial Warranty Crate Manifest
Atlas provides a 1-Year commercial warranty covering mechanical gearing, slip clutch mechanism, and housing welds. The heavy wooden shipping crate contains the 3-ton manual chain hoist powerhead, 20-foot Grade 80 load chain, zinc-plated hand chain, proof test certificate, and operator service handbook.