Garage Door Jackshaft Chain Hoist, 1:1 Reduced Drive, 331LBS Capacity, 4000 Direct Drive Roll Up Garage Door Openers for Warehouses, Roller Shutters

DetailsLong Chain: The 26ft chain provides greater flexibility in your installation and operation.Reserved Hole: The hole on the housing allows you to easily load it through a shaft.SpecificationsModel: 4000 Color: Silver, BlackMaterial: IronProcess: Stamping, GalvanizedMount Type: Wall MountedAssembly Required: YesGear Ratio: 1:1Chain Length: 8m/26ftLoad Bearing Capacity: About 150kg/330.7lbsBracket Size(W*H): 26*18cm/10.24*7.09inGear Diameter: 23cm/9.1inPackaging Size: 28*28*13cm/11.02*11.02*5.12inGross Weight: 7kg/15.4lbsPackage Included1* Garage Door Chain HoistNotes1.Please check the size carefully before ordering.2.Additional chains may be required for doors or vertical lift doors that are over 14 feet.3.Please do not use it to pull doors that weigh more than the maximum load.4.Please allow the slight color difference caused by the shooting light and 1-3cm error due to manual measurement, and make sure you do not mind before you order.

• 【HIGH QUALITY AND DURABLE】: The high-quality iron is sturdy and abrasion, ensuring the roll up garage door opener kit a long service life and keeping it practical for long-term use.
• 【EXCELLENT PERFORMANCE】: The sturdy chain and structure give the product a high load bearing(330.7 lbs) to give you confidence for lifting your garage doors.
• 【EFFORT-SAVING】: The 1:1 gear ratio allows you to pull up your roll-up door or garage door with less effort, which is very labor-saving.
• 【SMOOTH LIFTING】: The pre-lubricated ball bearing can reduce friction during rotation and ensure smoother lifting and lowering.
• 【WIDE RANGE OF APPLICATION】: The chain door opener is mainly used for pulling up the roller shutter door of garages, warehouses, and other places with hands.