We are engaged in offering of Weight Operated Limit Switches to our clients. The body of limit switch is manufactured by powder coated aluminum die cast. With IP-55 Degree of Protection and 40 Amps thermal test current, offered limit switch is known for rugged design, rust proof, easy to use and accurate dimensions features. Moreover to this, Weight Operated Limit Switches is used to make electrical connection between several devices.
Overhead Crane , Gantry Crane , Goalith crane , Crane hoist.
When the snatch block of the crane reaches its top position the snatch block pushes a plate which is hanging from one end of the lever of the limit switch. Due to the weight placed on the other end of the lever this lever is pushed up. When the lever is pushed up the shaft to which this lever is connected rotates there by rotating the cams which eventually open the contacts and disconnect the motor. The electronic limit switch contacts are automatically reset when the lever returns to zero position due to gravitational force.