Description
๐๐ญ๐๐๐ฅ๐ ๐๐ฉ๐๐ซ๐๐ญ๐ข๐จ๐ง: Ball bearings and lubricating oil reduce friction during rotation, and the 3:1 transmission ratio and reduction drive ensure smoother lifting and lowering.๐๐ฌ๐๐ซ-๐๐ซ๐ข๐๐ง๐๐ฅ๐ฒ ๐๐๐ฌ๐ข๐ ๐ง: The large diameter of the gears (5.91in) and the 3:1 ratio allow you to use as few turns as possible to raise the lifting height, thus saving more energy.๐๐ข๐ ๐ก ๐๐ฎ๐๐ฅ๐ข๐ญ๐ฒ: The high-quality iron and galvanizing process make this commercial garage door opener wear and corrosion-resistant and ensure long-term use.๐๐จ๐จ๐ ๐๐ญ๐๐๐ข๐ฅ๐ข๐ญ๐ฒ: Sturdy chains and construction give the product a weight capacity of up to 331 lbs, so you can lift your garage door with confidence.๐๐ซ๐๐๐ญ๐ข๐๐๐ฅ ๐๐จ๐จ๐ฅ: This hoist allows you to pull up the roller shutter or garage door easily, which is very practical
