Description

Product overview：

Qgx type lifting height limiter is applicable to all kinds of cranes, elevators, elevators and other equipment with displacement machinery. It is a safety protection device to limit the lifting bottleneck, and can effectively prevent equipment and personnel accidents such as jacking, derailment and falling.

The lifting height limiter of qgx crane is equipped with four to six limit switches, which can be set according to the user’s needs. Generally, two protections can be set for the rising and falling, namely, alarm limit and protection limit.

working principle：

The lifting height limiter of qgx crane drives the worm and worm wheel to rotate by the reel shaft, and the cam on the worm wheel shaft also rotates. When it turns to a certain position, the flange part of the cam contacts the limit switch to make the limit switch act, cut off the power source for lifting or lowering, and stop the lifting appliance at the limit position.

Core

1. Light weight
2. Convenient installation and commissioning
3. Sensitive and accurate response
4. Stable
5. Long service life
6. to 8-contact adjustable limit switch, conforming to gb14048.5-2008s standard

Application 

1. Working environment temperature: – 35 ℃ to + 60 ℃;
   2. Limit switch rated voltage: 380V;
   3. Limit switch rated current: 10A;
   4. Rated lifting height of each model:

Qgx-a type lifting height limiter：
It is applicable to the hoisting mechanism of 5t-250t crane standard series or non-standard drum with the number of working turns less than 0-40.
Four to six limit switches with adjustable limit positions.

Qgx-b lifting height limiter:
It is applicable to the hoisting mechanism of 5t-250t crane standard series or non-standard drum with the number of working turns less than 0-80.

Four to six limit switches with adjustable limit positions.

Qgx-c lifting height limiter:
It is applicable to the hoisting mechanism of 5t-250t crane standard series or non-standard drum with the number of working turns less than 0-120.

Four to eight limit switches with adjustable limit positions.