产品描述
Heavy Duty Chain block
Double pawl braking system
Asbestos free friction disc
Industrial power coating meet RoHS requirement
Alloy steel components with special heat treatment , avoiding sudden break
1500 cycles lifting test , meet JBT7334,EN13157, ANSI B30.16, AS1418 standards
Good impact resistance with thicken gear cover
Rolled-edge hand wheel cover provides smooth operation of the hand chain even when pulled sideways.
Ball bearing and gears with improved design make it in light effort force and smooth operation