Main technical parameters of LH type 5-10 ton electric hoist double girder bridge crane

I. Basic Parameters

1. Lifting Capacity Range
   • Standard models cover 5 and 10 tons, with some models offering 16/5t, 20/5t, and other combined tonnages.
2. Working Class
   • Typically A3 to A5, suitable for medium-intensity operations such as machinery manufacturing and warehouse loading and unloading.
3. Span Range
   • Common spans range from 7.5 to 40 meters, with options including 7.5m, 10.5m, 13.5m, 16.5m, 19.5m, and 22.5m. Customization is possible based on factory requirements.
4. Lifting Height
   • Standard height ranges from 6 to 18 meters, with some models offering 24 or 30 meters (up to customization).

II. Operating Speed

1. Lifting Speed
   • 5-10 ton models: Single-speed models offer 3.5 to 8 m/min, while dual-speed models offer a slow-speed option of 0.35 to 0.73 m/min.
2. Trolley Operating Speed
   • Typically 20 m/min (some models support 30 m/min).
3. Trolley Operating Speed
   • Ground Operation: 20-30 m/min; Cab Operation: 30-60 m/min (high-speed option requires special configuration).

III. Structure and Configuration

1. Control Methods
   • Support both ground control (handle or remote control) and cab operation.
2. Electric Hoist Type
   • A fixed electric hoist (such as the CD1 and MD1 models) is used, horizontally mounted for a compact structure.
3. Wheel Load and Deadweight
   • Maximum wheel load: Approximately 46-55 kN for 5-ton models, approximately 90-110 kN for 10-ton models.
   • Drawer Weight: Approximately 7.7-8.6 tons for 5-ton ground operation, approximately 10.3-12.2 tons for 10-ton cab operation.

IV. Electrical and Environmental Parameters

1. Motor Power
   • Hoisting Motor: ZD151 Series (e.g., 6/13kW); Running Motor: ZDY122 Series (1.5-4kW).
2. Power Requirements
   • Three-phase AC 380V/50Hz, duty cycle JC = 25%.
3. Environmental Adaptability
   • Operating Temperature: -25°C to +40°C. Not suitable for flammable or corrosive environments.

V. Selection Considerations

1. Customization Requirements
   • The lifting capacity, span, lifting height, control method, and special environmental requirements (e.g., explosion-proof, high-temperature, etc.) must be specified.
2. Relationship between Span and Wheelbase
   • When the span is increased, wheelbase adjustment (standard wheelbase is 3.5m) must be considered to ensure stability.