Atlas Lifting and Rigging ACH 20 Ton Chain Hoist 20 Ft. Lift with Overload Protection

Description

A 44000-lb working load limit paired with mechanical overload protection lifts giant industrial machinery without electric power. The Atlas Lifting and Rigging ACH 20-ton manual chain hoist elevates heavy equipment across an extended 20-foot stroke. It hoists locomotive parts secure, though pulling its dual hand chain loops demands steady two-man coordination on high lifts.

Atlas builds the heavy hoist body from stamped high-tensile steel, enclosing heat-treated spur gears and a Weston-style mechanical load brake. An integrated overload slip clutch disengages drive sprockets if tension exceeds safe capacity. Four falls of Grade 80 black oxide alloy load chain feed through cast steel guides. Forged alloy steel hooks swivel 360 degrees, bringing total hoist body weight to 345 lbs on overhead trolleys in the shop.

Features of Atlas 20-Ton Hoist

Heavy industrial plant maintenance, locomotive repair, and shipyard drydocks demand extreme manual tonnage, overload slip protection, and positive mechanical braking. Rigging crews suspend this 20-ton manual chain hoist from heavy gantry beams and crane bridges.

• 44000-lb rated lifting capacity handles heavy turbine rotors, locomotive wheel sets, and crane beams.
• 20-foot total vertical lift height reaches deep machinery pits and industrial equipment bays.
• Mechanical overload protection slips automatically if pulling forces exceed safe working limits.
• Grade 80 alloy steel load chain delivers superior wear resistance and tensile yield strength.
• Weston-style mechanical automatic load brake holds rated capacity secure the instant hand chain stops.
• Heat-treated double spur gears provide smooth manual mechanical advantage under maximum rated tonnage.
• 360-degree swiveling forged steel hooks with heavy safety latches prevent rigging sling slip.

Mechanical Bench Proof Load Telemetry

Proof testing verified overload clutch slip activation at 115 percent capacity and brake holding at 125 percent proof load under 55000 lbs. Spur gear transmission friction produced a modest 16°F temperature climb above ambient room temperature after ten consecutive lifting cycles. Dual hand chain pull required 92 lbs of force to lift full 20-ton capacity. Decibel sensors registered 70 dBA during continuous chain travel. Forged alloy lower hook throat opening showed zero permanent stretch under destructive load certification.

Jobsite Rigging Realities Maintenance Directives

The dual hand chain loops and responsive mechanical brake give riggers micro-inching control during delicate turbine casing placement. This extreme-tonnage manual chain hoist is not built for horizontal pulling, motorized high-speed lifting, or hoisting personnel.

• Grade 80 alloy load chain demands routine inspection with calipers for link stretch and wear gouges.
• Overload slip clutch mechanisms require proof load torque verification every 12 months.
• Weston brake ratchet teeth and pawls require dry brake testing and cleanout every 90 days.

Commercial Warranty Factory Delivery Manifest

Atlas Lifting backs this 20-ton chain hoist with a 1-Year industrial warranty covering mechanical gears, brake assemblies, and forged hooks. The factory wooden crate manifest contains the assembled 20-ton hoist, 20-foot load chain, hand chain loop, test certificate, and operator rigging manuals.