Home / Tools & Home Improvement / Garage Door Chain Hoist Opener Kit 3:1 Reduction for 1 Inch Shaft | Heavy Duty Wall Mount Manual Jackshaft Chain Hoist Manual Lifting on Commercial Roll Up Doors, Chain Drive Garage door Parts

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Garage Door Chain Hoist Opener Kit 3:1 Reduction for 1 Inch Shaft | Heavy Duty Wall Mount Manual Jackshaft Chain Hoist Manual Lifting on Commercial Roll Up Doors, Chain Drive Garage door Parts

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Description

Product Overview The LAJIAOZ SCH04 Garage Door Chain Hoist Kit provides a reliable manual lifting solution for commercial overhead doors, roll-up gates, and industrial shutters. Built with a 3:1 gear reduction system, this hoist significantly lessens the effort required to lift heavy doors, making daily operation smooth and manageable. It serves as an essential manual drive mechanism for non-motorized systems or as a backup lift system during unexpected power disruptions. Key Features 3:1 Gear Reduction Ratio: Lowers the manual pulling force required to raise heavy garage doors, protecting operators from strain. Solid 1-Inch Bore Sprocket: Features a 41B36 sprocket precision-machined to fit standard 1-inch solid jackshafts securely. Extended Hand Chain Length: The included 13-foot hand loop offers convenient access for doors installed at higher elevations. Integrated Chain Guard: Helps keep the drive chain aligned and prevents tangling or accidental slipping off the sprocket wheel. Applications Suitable for commercial warehouses, self-storage facilities, auto repair shops, and industrial buildings equipped with sectional overhead doors or sheet roll-up doors with a 1-inch shaft. Simple to install as a direct drive hardware addition.

Effortless Manual Operation: Reduces the physical force needed to operate heavy commercial garage doors and roll-up shutters. Built with a 3:1 gear reduction ratio to smoothly lift heavy overhead doors during daily use or sudden power outages.

Durable Heavy-Duty Steel Construction: Features a robust 41B36 sprocket engineered for reliable strength under continuous strain. Included chain guard protects internal components while preventing binding and slippage during operation.

Universal 1-Inch Shaft Compatibility: Designed to fit standard 1-inch jackshafts on commercial sectional and roll-up doors. Fits existing hardware seamlessly using the included 1/4 inch by 1/4 inch by 1-3/8 inch square key for secure torque transfer.

Complete Hardware Assembly: Comes equipped with a 36-inch #41 drive chain and a 13-foot hand chain to accommodate high-clearance overhead installations. Provides ample drop length for easy reach and operation from floor level.

Package Contents: Includes 1 chain hoist assembly, 1 sprocket (41B36 with 1" bore), 1 drive chain (#41, 36" length), 1 hand chain (13 ft length), 1 chain guard, 1 square key, and necessary mounting hardware. Ideal for commercial garages, warehouses, and storage facilities.

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