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Gantry cranes are a special type of overhead crane. The double girder semi-gantry crane features one side supported by A-type legs running on ground tracks, while the other side is usually supported by the walls of a workshop or warehouse. This design is ideal for lifting and conveying materials outdoors, offering high flexibility in confined spaces.
Girder Structure
Truss Girder: Welded from angle steel or I-type steel. Advantages: low cost, light weight, good wind resistance. Limitations: more welding points, larger deflection, lower stiffness, and lower reliability. Suitable for lower safety requirements and lighter loads.
Box Girder: Welded from steel plates, offering high stiffness and safety. Commonly applied for lifting large tonnage loads. Limitations: higher cost, larger self-weight, and lower wind resistance.
Double Box Girder: Offers large lifting capacity, wide span, and excellent overall stability. Suitable for heavy-duty operations, though the self-weight is higher than single girder cranes with the same lifting capacity.
Safety Protection
Overload limiter
Polyurethane rubber buffers with long service life and impact resistance
Crane traveling limit switch
Loss pressure protection and fault phase protection
Emergency stop system
Lifting height limiter
Brand Reputation
Weihua Cranes ranks among the top sellers in China's crane industry, boasting high brand awareness and market share. Its products are widely used in numerous national key projects.
Full Service
Weihua provides a one-stop service, encompassing consultation and planning, solution design, installation, and localized technical support worldwide.
Excellent Product Quality
Weihua Crane employs automated production lines and precision machining equipment. Key components are sourced from well-known domestic and international brands.
High Safety
Weihua Lifting strictly adheres to international standards such as GB and FEM. Key structures adopt high safety factors to ensure precise operation.
Customized Double Girder Semi-Gantry Crane Solutions
Weihua Crane provides fully customized Double Girder Semi-Gantry Crane solutions for outdoor lifting operations, combining the benefits of gantry and overhead cranes for enhanced stability and versatility.
Key parameters such as lifting capacity, span, lifting height, and clearance under the girder can be flexibly customized to suit different material handling requirements, making it ideal for outdoor yards, workshops, and heavy equipment handling.
Optional Configurations
Electric hoist trolley options
Remote control or cabin operation system
Frequency conversion for smooth and precise operation
Anti-sway devices for stable lifting of large loads
Customized design for uneven or outdoor ground conditions
Our engineering team ensures high stability, reliable operation, and long-term durability, providing efficient lifting solutions for outdoor yards, workshops, and heavy-duty material handling operations.
| Crane operate mechanism | Travelling speed (m/min) | 20 | 30 | |
| Reduction ratio | 58.78 | 39.38 | ||
| 58.95 | 39.42 | |||
| motor | type | ZDY21-4 | ||
| Power (kw) | 2x0.8 | |||
| Revolving speed(r/min) | 1380 | |||
| Lifting mechanism (electric hoist) and travelling mechanism | Model | CD1, MD1 | ||
| Lifting speed (m/min) | 8(7)/8/0.8(7/0.7) | |||
| Lifting height (m) | 6, 9, 12, 18, 24, 30 | |||
| Travelling speed (m/min) | 20, 30 | |||
| Motor | Conical squirrel-cage | |||
| Work duty | A3-A5 | |||
| Power source | 3 phase 50Hz 380V | |||
| Wheel diameter | ∅270mm | |||
| Orbital width | 37-70mm | |||
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Single Beam Gantry Crane MH TypeSingle Beam Gantry Crane MH Type features a compact single-girder design with a sturdy frame, offering flexible operation, efficient lifting, and reliable performance as core characteristics. -
European Gantry Crane Double BeamEuropean Gantry Crane Double Beam adopts advanced European FEM design standards with a modular structure, featuring high stability, efficient load handling, and integrated drive systems as core characteristics. -
Gantry Crane for Subway ConstructionThe specialized gantry crane for subway construction is designed for urban subway foundation engineering, tunnel segment hoisting, track laying, and underground transportation infrastructure construction. -
L Type Single Girder Gantry CraneL Type Single Girder Gantry Crane features an L-shaped leg structure with a single girder design, offering efficient space utilization, flexible operation, and reliable lifting performance for outdoor material handling.
