Dongqi Crane designs and produces double-girder bridge cranes for heavy industry factories

This case is a Chinese heavy industry company purchasing a bridge crane from our factory. This enterprise is mainly engaged in the manufacturing, sales and maintenance of: excavating machinery, construction engineering machinery, plastic machinery and their corresponding spare parts and components; mechanical processing.

If you want to have an in-depth understanding of our factory strength, we have prepared detailed information for customers, including product technical specifications, performance data, usage effects, customer feedback, etc. You can also communicate with us to visit the factory directly and visit the site. At the site, you can personally demonstrate the functions and performance of the product, allowing customers to experience the advantages of the product for themselves.

Parameters of 20 ton double beam bridge crane

1、 Basic parameters

• Lifting capacity: 20 tons
• Span: 22.5 meters (adjustable according to actual needs)
• Lifting height: Standard 12 meters (customizable according to user needs)
• Work level: A5 (intermediate work system)

2、 Main beam configuration

• Beam type: box type double beam structure
• Material: High quality Q345B steel
• Beam end connection form: rigid connection
• Camber: Designed according to standards to ensure smooth operation of the crane

3、 Lifting mechanism

• Lifting mechanism: equipped with 2 electric hoists, each weighing 10 tons, using frequency conversion speed regulation to achieve smooth lifting and lowering
• Car running mechanism: Adopting a four-wheel car, equipped with an electric motor and reducer, to achieve lateral movement

4、 Crane operating mechanism

• Drive mode: Adopting dual end drive to ensure smooth and reliable operation
• Number of wheels: 4 driving wheels and 4 driven wheels per group
• Motor and reducer: high-quality motor and reducer are used to ensure the stability and safety of the crane operation

5、 Electrical system

• Power supply method: three-phase four wire system, 380V
• Control system: Adopting PLC programmable controller to achieve automatic control of the crane
• Protection device: equipped with multiple safety protection devices such as overload protection, voltage loss protection, zero position protection, travel limit protection, etc

6、 Security protection

• Protective cover: Key parts such as motors and reducers are equipped with protective covers to prevent foreign objects from entering
• Emergency stop device: Set an emergency stop button to ensure quick parking in emergency situations
• Safety warning signs: Key parts of the crane are equipped with obvious safety warning signs to remind operators to pay attention to safety