عنواننا:
- لا. 18 شانهاي أفينيو, مدينة تشانغايوان, مقاطعة هنان, الصين.
مدينة تشانغايوان, مقاطعة هنان, الصين
+86 17513230665
In the world of material handling, efficiency and adaptability are paramount. فايهها, a global leader in crane manufacturing, presents its state-of-the-art Semi-Gantry Crane series—engineered to deliver robust performance where full overhead cranes are not feasible and larger, more expensive full gantry systems are not required.
A Weihua Semi-Gantry Crane features a robust leg on one side that runs on a grounded rail, while the other end is supported by a runway system attached to the building structure. This unique hybrid design offers the best of both worlds: the high lifting capacity and wide span of a gantry crane with the space-saving and cost-effectiveness of an overhead crane.
1. Maximized Floor Space: By utilizing the existing building column for support, the single-leg design keeps your floor clear of a second rail, allowing for unobstructed movement of personnel, vehicles, and other equipment.
2. Superior Strength & Durability: Built with high-strength steel and advanced welding techniques, our cranes are designed for rigorous daily use. They offer exceptional stability and a long service life, even in demanding industrial environments.
3. Precision Control & Smooth Operation: Equipped with premium-grade hoists, trolleys, and control systems, Weihua Semi-Gantry Cranes ensure precise load positioning, smooth acceleration, and deceleration. Options include pendant control, radio remote control, and even fully automated operation.
4. Exceptional Customization: We understand that no two facilities are alike. Weihua offers comprehensive customization options, including:
This table outlines the standard specifications for our semi-gantry cranes. All parameters can be customized to meet your specific application requirements.
| Parameter Category | Specification | Details & Options |
| Capacity | 1 ~ 50 طن | Standard capacities range from 1 ل 50 طن. Custom designs for higher capacities are available upon request. |
| فترة (S) | 10 ~ 35 meters | The distance between the runway rail (building side) and the ground rail (leg side). Custom spans are a key feature. |
| رفع الارتفاع (H) | 6 ~ 30 meters | The maximum vertical distance between the hook (lowered) and the floor. |
| Duty Class / Service | A3 ~ A7 | Ranges from light (A3) to very heavy (A7) duty, based on FEM/ISO standards. Determined by usage frequency and load spectrum. |
| Crane Travel Speed | 20 ~ 30 m/min | The travel speed of the entire crane along the runway. Often Variable Frequency Drive (VFD) controlled for smooth operation. |
| Trolley Travel Speed | 10 ~ 20 m/min | The travel speed of the hoist across the length of the bridge girder. |
| Lifting Speed | Single / Dual Speed | Standard (على سبيل المثال, 8 m/min) and micro-speed (على سبيل المثال, 0.8 m/min) options are available for precise load positioning. |
| Control Mode | Pendant / Radio Remote | Standard pendant control ( hanging push-button station) or wireless radio remote control for optimal visibility and safety. |
| Power Supply | 3-Phase, 380V/400V, 50/60Hz | Common standard. Can be configured for other voltages (على سبيل المثال, 415V, 480V, 600V) as required. |
| Structural Steel | Q235B / Q355B (GB Standard) | Equivalent to ASTM A36 / ASTM A572. High-strength steel is used for heavier capacities and longer spans. |
| Hoist Type | Wire Rope Hoist / Chain Hoist | European-style wire rope hoists are standard for most applications. Chain hoists are available for lower capacities. |
| Girder Type | Single / عاجر مزدوج | عاجر واحد: More cost-effective for lighter duties (up to ~20 tons).
عاجر مزدوج: Required for heavier capacities, يمتد أطول, and higher duty cycles. Provides higher hook height. |
| Runway Rail (Ground) | P38 / P43 / QU70 / QU100 | Rail size is selected based on wheel load and crane capacity. |
| Wheel Material | Forged Steel, 55# (GB) | Heat-treated forged steel wheels for durability and long service life. |
| Safety Devices | Standard Package | Includes overload limiters, upper/lower limit switches for all motions, emergency stop, bumper buffers, and safety hooks. |
| Optional Features | – | Automation: PLC control, anti-sway system, automated positioning. Environment: Explosion-proof design, weatherproofing for outdoor use, heated cabin. Comfort: Operator cabin with air conditioning. صيانة: Motorized service platform, walk-on bridge girder. |
| Design Standards | ISO, FEM, CMAA, AS, GB | Cranes are designed and manufactured according to international standards as required by the region of operation. |
A Semi-Gantry Crane is a complex piece of equipment comprised of several key systems that work together. Its unique design features one leg that runs on a ground-level rail and another end that runs on an elevated runway beam attached to the building structure.
Here is a breakdown of its core components:
These parts form the primary supporting structure of the crane.
Bridge Girder (Main Girder): The primary horizontal beam that spans the work area. It carries the hoist and trolley and is designed to resist bending under load.
Gantry Leg (Free-standing Leg): The vertical support structure on one side of the crane that runs on a floor-mounted rail. It is typically a sturdy, box-type or truss-style column.
End Truck (on the leg side): The assembly mounted at the bottom of the gantry leg. It houses the wheels, axles, and drive motors that allow the entire crane to travel along the ground rail.
End Carriage (on the building side): The assembly connecting the other end of the bridge girder to the elevated runway. It houses wheels that run on a rail attached to a building column or support structure.
Cantilever (Optional): An extension of the bridge girder beyond the gantry leg, which allows the crane to service areas outside its main span, such as loading bays.
These components handle the lifting and movement.
الرافعة الكهربائية: The primary device that lifts and lowers the load. It consists of a motor, gearbox, drum or disc brakes, and a chain or wire rope.
خطاف الرافعة: The assembly that connects the hoist to the load, featuring a hook and sheaves (pulleys) to guide the rope or chain.
Trolley: The unit that carries the hoist and travels back and forth along the length of the bridge girder. This movement is called trolley travel or cross travel.
Crane Travel Drives: The motors, gearboxes, and wheels that enable the entire crane structure to move along its runway rails (both the ground rail and the elevated rail). This movement is called long travel or bridge travel.
These components provide power and command the crane’s functions.
Power Feed System: Typically consists of festoon systems (cable carriers) or conductor bars (enclosed power rails) that deliver electricity to the crane along the runway length.
Control System: The operator interface. This is most commonly a pendant control station (a hanging push-button box) or a radio remote control system for greater freedom and safety.
Motors and Drives: Electric motors for the hoist, trolley, and bridge travel functions. Modern cranes use sophisticated variable frequency drives (VFDs) for smooth, precise control and acceleration/deceleration.
Safety Devices: Critical components that protect personnel and equipment. These include:
Limit Switches: (Hoist upper/lower limit, trolley end limit, bridge end limit) to prevent over-travel.
Load Limiter: Prevents the crane from attempting to lift a load beyond its rated capacity.
Bumpers/Buffer: Absorbs impact at the end of the runway.
Emergency Stop Buttons: Located on the control pendant and often on the crane itself.
This is the infrastructure the crane runs on. It is a critical part of the system but is sometimes considered a separate, installed component.
Elevated Runway Beam: The steel beam attached to the building structure that supports the end carriage of the crane.
Ground Rail: The track installed on the factory floor for the gantry leg to run on.
Rail Clips and Fasteners: Secure the rails to the beams and the floor.
Weihua Semi-Gantry Cranes are the versatile backbone of countless operations, including:
| Manufacturing Workshops | For handling raw materials, الآلات, and finished products. |
| Warehouses & Logistics Centers | Loading and unloading goods from trucks and moving heavy items. |
| Rail Yards & Ports | Container handling and cargo transfer. |
| محطات الطاقة | Maintenance of heavy turbines and equipment. |
| Paper & Steel Mills | Moving large, heavy rolls and coils. |
With over 30 years of experience, Weihua is more than a manufacturer; we are your partner in productivity.
Unlock the potential of your workspace. Enhance your material handling efficiency with the robust and flexible solution from a world-class provider.
Contact us today for a consultation and a customized quotation for your Weihua Semi-Gantry Crane system.
