MH Type Single Girder Gantry Crane with Enclosed Box Design
Product Introduction
The MH Type Box Girder Single-Girder Gantry Crane (also known as the Enclosed Box Single-Girder Gantry Crane or Box Girder Gantry Crane) features a box girder main beam structure that delivers excellent overall rigidity and strong load-bearing capacity. Designed to work with CD1/MD1 electric hoists, it is a medium-to-small rail-mounted crane. With a lifting capacity of 1 to 20 tons, spans from 12 to 30 meters, and a working environment of -20°C to +40°C, it is widely used for loading, unloading, and material handling in open-air sites and warehouses. It is available in both floor-operated and cabin-operated configurations.
Additional variants include the MH Type with top-enclosed/bottom-open design, MHE Type with dual electric hoists, BMH Type with semi-leg structure, and MHY Type for metallurgical high-temperature applications.
Product Specifications
- Product Name: MH Type Box Girder Single-Girder Gantry Crane (Enclosed Box Gantry Crane)
- Model & Specification: MH Type, lifting capacity 1–20 tons
- Place of Origin: Xinxiang, Henan (Kelude Heavy Industry)
- Customization: Non-standard designs available upon request; production lead time 15–20 days
- Structure Type: Box girder (enclosed box design)
- Applicable Span: 12–30 meters
Product Images
The images above show the MH Type Box Girder Single-Girder Gantry Crane in real-world applications. The box girder main beam structure provides excellent rigidity and load-bearing capacity.
Product Features
- Rigid Box Girder: The box section delivers superior bending and torsional resistance.
- Wide Range of Variants: MH/MHE/BMH/MHY models cover diverse operating conditions.
- Dual Control Options: Available with floor or cabin operation.
- Short Lead Time: Standardized design enables delivery in 15–20 days.
- Nationwide Supply: Self-pickup or freight forwarding available; 1-year warranty.
Working Principle
The crane bridge travels longitudinally along ground rails, while the electric hoist moves transversely along the main girder. The CD1 Type Conical Rotor Motor drives a three-stage reduction gearbox to raise and lower the hook via the drum wire rope. On power failure, the cone brake automatically applies braking.
Product Structure
The crane consists of the following core components:
Box Girder: Fabricated from Q355B steel plate by welding, with camber controlled to GB/T 3811 Crane Design Standard.
Outriggers: Made of Q235B/Q355B, with bottom beams welded for secure fixing.
Crane Bridge / Long Travel: Motor + gearbox + wheel block, travel speed 20–45 m/min.
Electric Hoist: CD1/MD1 Type, lifting speed 8/0.8 m/min.
Electrical Control: Circuit breaker, contactor, thermal overload relay, limit switch. Safe control voltage of AC 36V.
Technical Parameters
MH Type Box Girder Single-Girder Gantry Crane — General Technical Parameters
| Parameter Item | MH Type Parameter |
| Lifting Capacity | 1~20 t |
| Span | 12~30 m |
| Lifting Height | 6~30 m |
| Work Duty / Classification | A3 |
| Lifting Speed | 8 m/min(Standard)/ 0.8~8 m/min(Two-Speed) |
| Cross Travel Speed | 20 m/min |
| Long Travel Speed | 20~45 m/min |
| Power Supply | 3AC 380V 50Hz |
| Operation Mode | Floor / Operator's Cab / Remote Control |
| Recommended Rail | P24 / P38 |
| Electric Hoist Model | CD1 / MD1 |
Product Drawings
The image above shows the general dimensions of the MH Type box girder gantry crane. Actual dimensions are determined based on lifting capacity, span, and other requirements.
Applications
- Warehouses & Yards: Loading, unloading, and stacking of packaged goods.
- Outdoor Facilities: Material handling at steel markets and logistics terminals.
- Factory Workshops: General machinery manufacturing and assembly operations.
Selection Guide
Light Duty: 1–5t capacity, 12–20m span, reference price ¥30,000–80,000.
Medium Duty: 5–10t capacity, 20–24m span, reference price ¥80,000–150,000.
Heavy Duty: 10–20t capacity, 24–30m span, reference price ¥150,000–300,000.
Operating Instructions
Pre-Operation Checks: Ensure the crane rail is clear of obstructions, the wire rope is in good condition, and the brake functions properly.
Operation: Perform a trial lift of 200mm to verify braking. Overloading is strictly prohibited.
Shutdown: Raise the hook to the upper limit switch and disconnect the power supply. One-year warranty included.
Why Choose Kelude Heavy Industry
Specialized Box Girder Manufacturing: Welded from Q355B steel plate, inspected via UT non-destructive testing, and subject to a three-stage testing procedure before delivery.
Extensive Model Range: MH/MHE/BMH/MHY variants cover a wide range of operating conditions.
End-to-End Service: Free site survey, design & manufacturing, installation, and after-sales support.
Service & Support
Call 13903802779 for 24-hour response.
Need a crane selection proposal or quotation for the MH Type box girder gantry crane?
Contact the Kelude Heavy Industry sales & engineering team anytime.
FAQ
Q: What is the difference between the MH Type box girder gantry crane and the open-top/box-bottom hybrid type?
A: The box girder type features a fully box-shaped structure, offering the highest overall rigidity and load-bearing capacity. The hybrid type uses a mixed structure that is lighter in dead weight and more cost-effective.
Q: Which national standards does the MH Type box girder gantry crane comply with?
A: It is designed to JB/T 5663-2008, with the box girder structure referencing GB/T 14406-2011 and the hoisting mechanism complying with JB/T 9008.1.
Q: What are the advantages of choosing Kelude Heavy Industry for box girder gantry cranes?
A: Kelude Heavy Industry is based in Xinxiang, Henan, with over a decade of experience in gantry crane manufacturing. Our box girders feature all-steel-plate welding, UT non-destructive testing, and a three-stage factory testing procedure. We also provide free site surveys and nationwide on-site installation services.
