China Construction Hoist Spare Parts Safety Device Spanner

Processing
1.Material:copper alloy(Al-cu,Be-cu)
2.Surface: polished or electrostatic spraying
3.Hardness: al-cu(over 25HRC) be-cu(over 35HRC)
4.Type:non sparking spanner
5.Handle : Plastic stick
To prevent the hanging basket construction elevator overspeed or fall and set up a safety device, is divided into a unidirectional and bidirectional type two kinds, the one-way speed limiter can only along the direction hoisting cage falling within the speed limit, two-way speed limiter can up and down along the hoisting cage speed effect on two directions.The speed limit shall be tested according to the prescribed time limit.