Rolling Door Chain Hoist – 4:1 Ratio, 1" Bore with 26 ft. Hand Chain Armor Plate of holding power

of holding power

Why Replace Your Transformer Board

Office buildings

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Rolling Door Chain Hoist – 4:1 Ratio, 1" Bore with 26 ft. Hand Chain Armor Plate of holding powerpgrade 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