Garage Door Jackshaft Chain Hoist With Three To One Ratio 331 Lbs Capacity

Garage Door Jackshaft Chain Hoist 3:1, 331 lb Capacity
✔️ Heavy-duty iron, 3:1 gear ratio, 331 lb capacity, single unit

This garage door jackshaft chain hoist is designed to lift and lower sectional doors with a smooth, reliable action. It’s typically mounted beside garages, warehouses, and roller shutters to simplify door operation and reduce manual effort.

✅ Capacity up to 331 lbs (150 kg)
✅ Transmission ratio 3:1 for smoother lifting
✅ Large gears diameter 5.91 in (150 mm) for fewer turns
✅ Durable iron with galvanizing finish for long life
✅ Ball bearings and lubrication reduce friction during rotation
✅ Hand-pulled chain operation suits garage and shutter setups

💡 What is a garage door jackshaft chain hoist used for and how does it work? This handy device uses a chain and a 3:1 gear ratio to lift doors with less effort. It is commonly installed beside garages, warehouses, and roller shutters to provide an easy, manual lifting option. - 3:1 gear ratio reduces the number of pulls required - Hand-pulled chain operation for simple control - Durable iron with galvanizing finish for long life - Supports doors up to 331 lbs in typical setups