1) Shell: Aluminium alloy , solid and light but durable and easy to install.
2) Gear : High-quality alloy steel and special technical treatment to guarantee the strong hoist.
3) Brake structure: special device mechanical brakes, power cut off in an instant the brakes, to ensure absolute safety brake.
4) Limit System: Correct control , easy operation , and big control range.
5) Transmission System : High accuracy, smooth running , and low noise.
6)Anti-dropping device : Preventing accidental injury and ensure safety.