The double-girder semi-gantry crane is a hybrid hoisting equipment between overhead cranes and full gantry cranes, integrating the advantages of gantry cranes and overhead cranes. Equipped with two box-type main girders, this equipment can bear larger tonnage and adapt to longer working spans compared with single-girder semi-gantry cranes. One travelling end of the equipment is fitted with legs to move along ground rails, while the other end travels on running beams mounted on factory buildings. It can be equipped with heavy-duty trolleys, wire rope electric hoists, grabs or electromagnetic chucks to realize various material handling operations.
Many factories feature a special hoisting layout: one side has an existing concrete workshop structure with load-bearing brackets, while the other side is an open-air vacant lot. Full gantry cranes require bilateral ground rails, resulting in higher costs; standard overhead travelling cranes cannot cover extended outdoor areas. The Henan Mine double-girder semi-gantry crane perfectly addresses the challenges of this layout. Boasting a robust double-girder structure, the equipment is fitted with ground rails for the travelling mechanism on one end and fixed to the workshop load-bearing brackets on the other. It meets the demands of heavy-load operations while cutting infrastructure investment.
Core Advantages of Henan Mine Double-Girder Semi-Gantry Crane
Two-way walking mixed design to save infrastructure budget
Make full use of the existing load-bearing structure of the factory building. There is no need to construct foundations and tracks on both sides, which greatly reduces the civil engineering cost of the project and shortens the construction cycle.
Dual-box main girder structure with excellent heavy-load performance
Adopting optimized welded double-box main girders, it features high rigidity and excellent deformation resistance. Suitable for heavy-duty and high-frequency continuous operation, it reaches the highest working class of A7 with a lifting capacity of up to several hundred tons.
Suitable for semi-open areas with flexible operation coverage
The operating scope covers indoor workshops and open-air yards outside buildings, making it ideal for transporting workpieces between indoor processing areas and outdoor material yards.
Diversified configurations to adapt to different operation materials
Optional accessories include standard lifting trolleys, grabs, electromagnetic chucks and C-shaped coil lifting spreaders; complete sets of explosion-proof, anti-corrosion and rain-proof configurations can be customized for chemical, metallurgical and outdoor scenarios.
Full-set safety protection, stable and reliable operation
Equipped with an overload limiter, travel limit switches, buffer devices and anti-derailment safety devices; variable-frequency drive is optional to achieve smooth start-stop and reduce workpiece swinging during lifting.
Typical application scenarios
Warehousing and Logistics: Efficiently load and unload pallets, crates and containers in confined spaces.
Mechanical Manufacturing and Workshops: Move heavy-duty materials, handle raw materials and support assembly-line production in narrow spaces.
Construction and Civil Engineering: Lift and position steel beams, concrete blocks, pipes and prefabricated components.
Power Plants and Energy Sectors: Maintain and repair heavy-duty machinery such as turbines, generators and boilers.
Main Technical Parameters
| Item | Specification |
|---|---|
| Capacity | 5t ~ 150t |
| Span | 14m ~ 35m |
| Lifting Speed (m/min) | 0.8/8 |
| Crane Running Speed (m/min) | 20/30 |
| Power Supply | 380V/50Hz/3P (Customizable) |
| Working Duty | A3 ~ A7 |
| Control Mode | Handle / Remote Control / Air operation |
| Travelling Mode | Ground rail + building bracket runway |
| Working Environment | Indoor / Outdoor (rain-proof & anti-corrosion optional) |
Get a Double-Girder Semi-Gantry Crane Solution
If you are planning a workshop hoisting renovation and are unsure whether an overhead crane or a semi-gantry crane is suitable for your factory building, you can directly contact Henan Mine. Provide your factory drawings to obtain exclusive hoisting solutions and accurate quotations.
Contact: Chloe
Tel: +86 18238799707 (Same number for WhatsApp)
Email: sales07@minehenancranes.com
FAQs
Q: Can the double-girder semi-gantry crane be used outdoors all year round?
A: Yes. We can provide outdoor protection solutions, including rain covers for electrical cabinets and trolleys, outdoor anti-rust paint, and wind-proof rail clamps to resist typhoons.
Q: Can an existing single-girder semi-gantry crane be retrofitted and upgraded to a double-girder model?
A: A complete redesign is generally required, as double-girder equipment has different load-bearing requirements for ground rails and plant supports. Our engineers can conduct on-site surveys of working conditions and deliver feasible retrofitting solutions.
Q: What is the product production cycle?
A: The production cycle for standard double-girder semi-gantry cranes from Henan Mine is 25-40 working days. For large-tonnage or non-standard customized projects, we will finalize the exact delivery cycle before order confirmation.
