pgrade or replace the manual hoist system on a commercial rolling steel door with this heavy-duty 4:1 ratio chain hoist assembly. Designed for jackshaft mounting, the hoist features a standard 1-inch bore for installation on a 1-inch torsion shaft.

The 4:1 gear ratio provides smooth, controlled manual operation and reduces the effort required to raise and lower rolling doors. A complete set of installation components is included for convenient replacement or new installation.

Features

• 4:1 gear ratio for smooth, controlled door operation
• Standard 1-inch bore
• Jackshaft mount for a 1-inch torsion bar
• Suitable for commercial rolling steel doors
• Heavy-duty construction for dependable operation
• Includes 26 feet of hand-operated chain
• Complete mounting and shaft hardware included
• Ideal for replacement, repair, or new door installations

Included Components

• 4:1 ratio chain hoist
• Drive sprocket
• 26 ft. of hand chain
• Chain keeper
• Two shaft collars
• Wall-mount bracket
• 1/4-inch shaft key

Specifications

• Product Type: Manual Rolling Door Chain Hoist
• Gear Ratio: 4:1
• Bore Size: 1 inch
• Mounting Type: Jackshaft
• Torsion Shaft Compatibility: 1 inch
• Hand Chain Length: 26 feet
• Application: Commercial rolling and coiling steel doors

Recommended Applications

Ideal for warehouses, storage facilities, loading areas, agricultural buildings, service shops, commercial garages, and other facilities equipped with manually operated rolling steel doors.

Verify the door shaft diameter, mounting configuration, door weight, and required chain length before ordering.