MH Type Single Girder Gantry Crane
Product Introduction
The MH Type Single-Girder Gantry Crane (commonly known as a gantry crane or single-girder portal crane) is a simple gantry crane designed for small to medium-duty applications, with optional cantilevers. The main girder is a composite beam formed by welding U-shaped channel plates to an I-Beam, and the hoisting mechanism uses a CD1/MD1 type Electric Hoist. The Crane Travel Mechanism is driven by an integrated "three-in-one" drive unit. With its simple structure and ease of Installation & Repair, it is widely used in factories, freight yards, docks, and hydropower stations where duty cycles are relatively low.
The MH Type offers a Rated Lifting Capacity of 3 to 16 tons, spans from 10 to 26 meters, and is designed for an Ambient Temperature range of -25°C to +40°C. Compared to the standard MH model, this economy version replaces the box girder with a U-shaped channel plate composite girder, resulting in faster delivery and a more competitive price. It is ideally suited for applications with low usage frequency or infrequent lifts at Rated Lifting Capacity. Control Method options include ground control, cabin control, and Wireless remote control.
Product Specifications
- Product Name: MH Type Single-Girder Gantry Crane (Economy Gantry Crane)
- Model & Specification: MH Type, Rated Lifting Capacity 3~16 tons
- Place of Origin: Xinxiang, Henan (Kelude Heavy Industry)
- Main Girder Structure: Composite girder welded from U-shaped channel plates and I-Beam (economy version)
- Hoisting mechanism: CD1/MD1 type Wire rope hoist
- Applicable Span: 10~26 meters
Product Images
The image above shows an actual MH Type Single-Girder Gantry Crane. The U-shaped channel plate and I-Beam welded composite girder structure offers an economical solution with fast delivery.
Product Features
- Cost-Effective & Fast Delivery: The U-shaped channel plate composite girder replaces the box girder, reducing manufacturing costs and Welding workload. Standard delivery time is 10~15 days, 5~7 days faster than box-girder designs.
- Simple Structure, Easy Maintenance: The main girder has a simple design with highly standardized Components. The Electric Hoist is a standard off-the-shelf item, making routine Maintenance and parts replacement quick and convenient.
- Optional Cantilevers: Cantilevers can be added to both ends of the main girder to extend the coverage area, making it suitable for yard stacking and cross-loading operations.
- Integrated "Three-in-One" Drive: The Crane Travel Mechanism utilizes a three-in-one drive unit (integrating the Motor, Gearbox, and Brake), offering a compact design, easy installation, and low failure rates.
- Multiple Control Options: Choose from ground control, cabin control, or Wireless remote control to best suit your specific application needs.
- Ideal for Low-Duty Applications: Specifically designed for environments with low usage frequency or infrequent lifts at Rated Lifting Capacity, offering superior economic efficiency compared to standard gantry cranes.
Working Principle
The bridge travel mechanism of the MH Type Single-Girder Gantry Crane moves longitudinally along the Runway Rail on the ground, while the Electric Hoist traverses laterally along the lower flange of the I-Beam on the main girder. This coordinated movement enables three-dimensional Material Handling within a rectangular working area. The CD1 type Conical Rotor Motor drives the drive drum to wind the Wire Rope, facilitating the lifting and lowering of the Hook. In the event of a power failure, the Cone brake automatically engages (Brake application) for safety.
Product Structure
The MH Type Single-Girder Gantry Crane consists of the following core components:
Composite Main Girder: An economical structure formed by welding U-shaped channel plates to an I-Beam. A runway track for the Electric Hoist is laid on top of the main girder.
Outrigger System: Standard outriggers made of Q235B or Q355B steel. The bottom is welded to a ground beam, which is secured to the concrete foundation with Anchor Bolts. External cantilevers can be customized upon request.
Bridge Travel Mechanism: Utilizes a three-in-one drive unit (integrating Motor, Gearbox, and Brake), with travel speeds selectable between 20~45 m/min.
Electric Hoist: CD1/MD1 type Wire rope hoist, comprising a Conical Rotor Motor, three-stage Reducer, Drum, Wire Rope, and Hook block.
Electrical Control System: Includes main Circuit Breaker, Contactor, Thermal Overload Relay, and Limit Switch. Control voltage is a safe AC 36V.
Technical Parameters
MH Type Single-Girder Gantry Crane – Key Technical Parameters
| Parameter | 5t / H=6m | 5t / H=9m |
| Lifting Capacity | 5 t | |
| Span | 10 / 14 / 18 / 22 / 26 m | 10 / 14 / 18 / 22 / 26 m |
| Work Duty / Classification | A3~A5 | |
| Lifting Speed | 8 m/min(Standard)/ 8+0.8 m/min(Two-Speed) | |
| Hoist Travel Speed | 20 / 30 m/min | |
| Long Travel Speed | 20 / 30 / 45 m/min | |
| Control Method | Ground / Cab / Remote Control | |
| Power Supply | 3AC 380V 50Hz | |
| Installed Capacity | 9.6 k W | 11 k W |
| Recommended Crane Rail | P18 / P22 | |
| Maximum Wheel Load(Available Cantilever) | 64~90 k N | 68~95 k N |
| Maximum Wheel Load(None Cantilever) | 52~68 k N | 55~72 k N |
| Dead Weight(Available Cantilever) | 8.9~17.4 t | 9.9~19.1 t |
| Dead Weight(None Cantilever) | 8.34~16.5 t | 9.1~17 t |
Specification Nomenclature: Floor-operated — e.g., MH5-22.5 A4 (5t, 22.5m span, A4); Cab-operated — e.g., MH10t-16.5A5S (10t, 16.5m span, A5, with cab)
Product Drawings
The above drawing shows the main dimensions of the MH Type single-girder gantry crane (5t example). Actual dimensions are determined by lifting capacity, span, and lifting height.
Typical Applications
- Factory Workshops: Material handling in general machinery manufacturing and assembly workshops.
- Yards & Warehouses: Loading, unloading, and stacking of unit loads. The cost-effective gantry crane keeps operating costs down.
- Docks: Handling of general and bulk cargo at small wharves and berths.
- Hydropower Stations: Equipment installation and maintenance, where duty cycles are low but reliable lifting is essential.
Selection Guide
Light Duty: 3~5t, 10~18m span. Suitable for small workshops and warehouses. The economical U-beam design is sufficient. Reference price: RMB 20,000–60,000.
Medium Duty: 5~10t, 18~22m span. Suitable for factories and storage yards. Can be fitted with a cantilever to extend coverage. Reference price: RMB 60,000–140,000.
Heavy Duty: 10~16t, 22~26m span. Suitable for docks and hydropower stations. Foundation load capacity and wind protection for outdoor use must be verified. Reference price: RMB 140,000–250,000.
Selection Notes: Please provide lifting capacity, span, lifting height (H=6m or 9m, etc.), and whether a cantilever is required. Kelude Heavy Industry will provide a free proposal.
Operating Instructions
Pre-Operation Checks: Verify the crane rail is clear of obstructions, the composite girder weld seams are sound, the wire rope shows no broken strands, brake clearance is correct, and limit switches are responsive.
Operation: Perform a trial lift of 200mm to check the brake before hoisting. The U-beam composite girder has slightly more sway than a box girder — use a tag line to control the load when moving large items. Never exceed the rated capacity.
Shutdown: Raise the hook to the upper limit, park the crane bridge in the designated anchoring zone, and disconnect the main power supply. For outdoor parking, engage the rail clamps.
Why Choose Kelude Heavy Industry
Fast Delivery, Competitive Pricing: Standard lead time for the U-beam composite girder design is 10–15 days, with pricing 15%–20% lower than box girder models — the top choice for budget-conscious or urgent projects.
Turnkey Service: Free site survey, foundation design, manufacturing, installation, training, and after-sales support — a one-stop solution.
Worry-Free After-Sales: The electric hoist is covered by a nationwide warranty with ample spare parts supply. Phone support responds immediately, with on-site service within 48 hours.
Service & Support
Kelude Heavy Industry provides full life-cycle support for the MH Type single-girder gantry crane. Call 13903802779 for a 24-hour response.
Need a selection proposal or quotation for an MH Type single-girder gantry crane?
Contact the Kelude Heavy Industry sales & engineering team anytime.
FAQ
Q: What is the difference between the MH Type single-girder gantry crane (economy version) and the standard MH Type?
A: The economy version uses a composite girder fabricated from a U-shaped channel welded to an I-beam — faster to manufacture and lower in cost, but with more noticeable sway during operation and a lower work duty (A3~A5). It suits applications with low usage frequency or few lifting cycles. The standard MH Type uses a box girder, offering better overall rigidity and a work duty up to A5~A7, making it suitable for heavy-duty, high-frequency operations.
Q: Which national standards does the MH Type single-girder gantry crane comply with?
A: It is designed to JB/T 5663-2008 "Electric Hoist Gantry Crane" standard. The hoisting mechanism complies with JB/T 9008.1 "Wire Rope Electric Hoist". Installation supervision and inspection are carried out per TSG Q7014, and safety protection devices are configured to GB/T 6067.
Q: How is the MH Type single-girder gantry crane specified?
A: Floor-operated models are designated as "MH5-22.5 A4" (5t capacity, 22.5m span, duty A4). Cab-operated models are designated as "MH10t-16.5A5S" (10t, 16.5m span, A5, with cab — "S" denotes cab operation).
Q: What are the advantages of Kelude Heavy Industry's MH Type single-girder gantry crane (economy version)?
A: Kelude Heavy Industry's U-shaped composite girder solution offers a standard lead time of 10–15 days, with pricing 15%–20% lower than box-girder designs. We provide free crane selection and quotation, nationwide on-site installation, and a one-year warranty.
