25 ton gantry crane is kind of heavy duty lifting crane. It is widely used for loading and unloading material in many different fields, such as construction site, automobile factory, machinery processing and manufacturing enterprises, logistics factory, industrial and mining enterprises, railway engineering etc. Ellsen, a famous gantry crane supplier in China, supplies types of top quality cranes with reasonable price. Buy Ellsen lifting gantry for easier and safer work!
What’s over-speed protection device on gantry crane?
Over-speed protection device is installed on the lifting mechanism. It can avoid the accidents caused by over-speed. This kind of safety device can eliminate the glide-hook condition, ensure the safety of the lifting-material and operator, avoid the damage caused by the over-speed of electric motor and transmission mechanism, and reduce the driver’s fatigue. It has economic and social benefits.
This kind of safety device is widely used for overhead crane, gantry crane, goliath crane. The simple type and complex type can meet all requirements of different tons and working places. In general, metallurgic overhead crane lifting more than 20 ton must be installed with over-speed protection device.
Hit-against device on 25 ton gantry crane
Hit-against device has various types, such as ultrasound, laser and infrared and microwave type. They have many functions, they can detect long distance, and set some alarming distances. They have high density, complete function, and strong adaptability. The light type and ultrasound types are popular anti-hit devices in China.
Typical light type hit-against device is composed of transmitter, receiver, controller and baffle plate. The light spreads straightly and has reflection performance. The device can take advantage of these two properties to detect distance. Ultrasound type hit-against device utilizes the ultrasound to detect the distance, it has two types, sonar and back to sound type.
Ellsen reliable 25 ton gantry crane for sale
1. Powerful lifting capacity, high efficiency
2. Quick start, immediate stop, smooth move
3. Strict standards, durable material, reliable quality
4. Ready structure, reasonable design
5. Complete safety devices, long service life
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