Main parameters and technical features of 50-ton double-girder bridge crane

I. Core Performance Parameters

Rated Lifting Capacity

• Main Hook Lifting Capacity: 50 tons (some models support auxiliary hook configurations, such as 50/10 tons with a 10-ton auxiliary hook).

Span Range

• Standard span: 10.5-31.5 meters (common 18-35 meters), customizable upon request.

Lifting Height

• Standard configuration: 12 meters, expandable to 16-22 meters (customizable for special conditions).

Operating Speed

• Trolley Operation: 20-30 meters/minute (variable frequency control available for higher precision).
• Trolley Operation: 30-40 meters/minute.
• Lifting Speed: 7-8 meters/minute for main hook, up to 12 meters/minute for auxiliary hook.

Operating Class

• Typically A5 or A6 (medium to busy operating environments), supports A7 for high-frequency use.

Operating Temperature

• Operating Range: -20°C to +40°C, with special designs available for extreme environments.

II. Structural Design Features

Main Beam Structure

• A box-type or honeycomb beam design is used, combining high strength and lightweight (light weight, high load capacity, and strong wind resistance).
• The end beams and main beam are connected by steel pins, ensuring stability and easy assembly and disassembly for transportation.

Electrical System

• Variable frequency speed regulation technology enables stepless speed change, and is equipped with safety devices such as an overload limiter and height limiter.
• Operation options include cab control, ground remote control, or an intelligent system (supporting fault self-diagnosis).

Installation and Transportation

• The modular design allows for disassembly of the outriggers into individual pieces, making it suitable for field construction and transportation.

III. Selection and Customization Key Points

Configuration Options

• Span and Height: Customizable based on the actual dimensions of the plant. Span exceeding 31.5 meters requires structural reinforcement.
• Work Class: A6 and above are recommended for high-frequency operations (such as in the metallurgical industry).
• Environmental Compatibility: Rain protection is required for outdoor use, and special motors are required for low-temperature environments.

Price Reference

• The price of a 50-ton double-girder overhead crane ranges from approximately 500,000 to 1,000,000 yuan, depending on factors such as span, operating level, and brand.

IV. Typical Application Scenarios

• Industrial workshops: Heavy-load material handling (e.g., steel and machinery manufacturing).
• Logistics and warehousing: Large container or equipment lifting.
• Infrastructure projects: Extendable to a lifting height of 56.5 meters with an auxiliary boom (special design required).

For more detailed technical drawings or customized solutions, we recommend contacting a professional manufacturer (such as Xinhua Heavy Industries) for specific specifications.