Trolley Mechanical Limit Switch

     The main function of the limit switch of the single beam crane produced by CTECH Machinery SDN BHD is:
     Limiting the up and down position of the hook: preventing the hook from rising too high and causing it to crash or fall too low is one of the most important limits on a single beam crane. Common types include cam type limit switches and power-off limit switches that directly cut off the power supply.
     Limit the travel of large and small vehicles: prevent the crane from hitting the end of the track or the structure of the factory building while running on the track. Large car limit switches commonly use photoelectric switches and mechanical switches, while small car limit switches rely on moving parts colliding with contacts to switch circuits. ‌‌
Common types:
     Mechanical limit switch: It operates by directly colliding the moving parts with the contacts, and is currently widely used, such as conventional point contact type.
     Photoelectric limit switch: It detects obstacles through infrared light and is non-contact, but its stability is relatively poor.
     Cross limit switch: The contact is a set of cross bars, which make contact through "wire to wire" and have relatively stable performance. ‌‌