CD/MD electric hoist, as a common lifting equipment, is widely used in industrial and mining enterprises, warehouses, docks and other fields. However, its traditional limiters have also exposed some shortcomings during use. The following is a detailed analysis of these shortcomings:

1. Accuracy and reliability issues

Limited limit accuracy: Traditional limit switches often use mechanical contact switches, and their limit accuracy is affected by factors such as mechanical component wear and looseness. As the usage time increases, the limit accuracy will gradually decrease, which may lead to deviation of the electric hoist when it reaches the predetermined position.

Lack of reliability: Due to the relatively complex structure of mechanical limiters and the presence of multiple moving parts, they are prone to failure. In addition, environmental factors such as dust and humidity may also affect the normal operation of the limiter, reducing its reliability.

2. Difficulties in maintenance and adjustment

High maintenance costs: Traditional limiters require regular inspection and maintenance to ensure their proper functioning. However, due to its complex structure and relatively cumbersome maintenance process, it requires professional personnel to operate, thereby increasing maintenance costs.

Inconvenient adjustment: When it is necessary to adjust the limit position, traditional limiters usually require disassembling some components or performing complex adjustment operations, which not only increases the difficulty of adjustment but may also affect the normal use of electric hoists.

3. Limited security performance

Safety hazard: Due to the accuracy and reliability issues of traditional limiters, electric hoists may not be able to stop accurately or may collide when reaching the predetermined position, resulting in safety hazards.

Lack of warning function: Traditional limiters usually only have simple limit functions and lack the ability to issue warning signals in advance when approaching the limit position, which makes it difficult for operators to take timely measures to avoid accidents.

4. Low level of intelligence

Unable to integrate into intelligent systems: With the development of Industry 4.0 and intelligent manufacturing, more and more lifting equipment is being integrated into intelligent systems to achieve remote monitoring, fault diagnosis, and other functions. However, due to the low level of intelligence of traditional limiters, it is difficult to effectively integrate with these intelligent systems.

Unable to provide real-time data: Traditional limiters cannot provide real-time data about the operating status of electric hoists, such as speed, position, etc., which makes monitoring and management of electric hoists difficult.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment