Product Introduction
A Double Girder Hoist Trolley is a lifting mechanism designed for double girder overhead cranes, double girder gantry cranes, and other double beam lifting systems. It usually consists of an electric wire rope hoist, trolley frame, traveling mechanism, wheels, motor, reducer, brake, electrical control system, hook block, wire rope, limit switches, and safety protection devices. The hoist trolley travels on rails mounted on the top of two main girders, allowing the crane to lift and move loads efficiently across the working area.
Compared with a standard low-headroom hoist or single girder hoist, a double girder hoist trolley is more suitable for applications that require higher lifting capacity, better hook approach, larger lifting height, more stable operation, and stronger structural support. It is widely used in workshops, warehouses, steel plants, machinery manufacturing plants, assembly lines, maintenance areas, material handling systems, power plants, logistics centers, and industrial production facilities.
ZOKECRANE double girder hoist trolleys are designed and supplied by Henan Zoke Crane Co., Ltd., a professional lifting equipment manufacturer specializing in overhead cranes, gantry cranes, electric hoists, crane trolley mechanisms, and customized lifting solutions. Our manufacturing base is located in Changyuan, Henan Province, one of China’s major crane production centers. With extensive experience in crane engineering, design, manufacturing, and quality control, ZOKECRANE provides reliable hoist trolley solutions for different industrial applications and overseas crane projects.
The double girder hoist trolley can be used as the lifting mechanism of a complete double girder overhead crane or double girder gantry crane. It can also be supplied separately as a replacement trolley, crane modernization component, or customized lifting unit for existing crane systems. According to project requirements, ZOKECRANE can provide different configurations, including single speed hoist trolley, dual speed hoist trolley, variable frequency hoist trolley, standard wire rope hoist trolley, European-style hoist trolley, and customized double girder crane hoist trolley.
ZOKECRANE double girder hoist trolleys can be customized according to lifting capacity, lifting height, span, rail gauge, trolley traveling speed, hoisting speed, working duty, hook type, power supply, control method, installation space, environmental conditions, and customer project requirements. They can be integrated with overhead cranes, gantry cranes, semi-gantry cranes, workstation lifting systems, production line cranes, and other material handling equipment.
With ISO, CE, and SGS certifications, ZOKECRANE continuously improves product structure, manufacturing processes, and quality control standards to meet the needs of international customers. We are committed to providing reliable lifting equipment, professional technical support, customized crane solutions, and practical export services for global markets.
Main Features of ZOKECRANE Double Girder Hoist Trolley
- Suitable for double girder overhead cranes and double girder gantry cranes
- Compact trolley structure with stable traveling performance
- Electric wire rope hoist for efficient lifting operation
- Higher lifting height compared with many single girder hoist arrangements
- Good hook approach and efficient use of workshop space
- Strong trolley frame designed for double girder crane systems
- Reliable motor, reducer, wheel group, and brake system
- Smooth lifting and trolley traveling movement
- Single speed, dual speed, and variable frequency control available
- Pendant control, cabin control, and wireless remote control available
- Limit switches, overload protection, and emergency stop available
- Customized rail gauge according to crane design
- Suitable for new cranes, crane upgrades, and replacement projects
- Customizable lifting capacity, lifting height, speed, and working duty
- Suitable for indoor and outdoor industrial applications
- Easy installation, inspection, operation, and maintenance
- Export packaging and complete technical documents available
- ISO, CE, and SGS certifications available
Main Components
A double girder hoist trolley is composed of a hoisting mechanism, trolley traveling mechanism, structural frame, electrical control system, and safety protection devices. The following table shows common components and their functions.
| Component | Description | Function |
|---|---|---|
| Electric Wire Rope Hoist | Main lifting unit mounted on the trolley frame. | Lifts and lowers the load through wire rope and hook block. |
| Trolley Frame | Welded steel structure designed according to rail gauge and capacity. | Supports the hoist and traveling mechanism and transfers load to the crane girders. |
| Hoisting Motor | Electric motor selected according to lifting capacity and speed. | Provides power for lifting and lowering operation. |
| Hoisting Reducer | Gear transmission unit for the lifting mechanism. | Reduces motor speed and increases torque for stable lifting. |
| Drum | Wire rope winding component of the hoist. | Winds and unwinds the wire rope during lifting and lowering. |
| Wire Rope | Steel wire rope selected according to rated load and safety requirements. | Connects the drum with the hook block and transmits lifting force. |
| Hook Block | Load connection component with hook, pulley, and safety latch. | Connects the hoist trolley with the lifted load. |
| Trolley Traveling Motor | Motor used for trolley horizontal movement. | Drives the trolley to travel along rails on the double girder crane. |
| Trolley Reducer | Gear reducer for the trolley traveling mechanism. | Provides suitable speed and torque for smooth trolley movement. |
| Wheel Group | Crane wheels matched with trolley rail and rail gauge. | Supports the trolley and allows it to move on the crane rails. |
| Brake System | Braking device used for hoisting and traveling mechanisms. | Stops and holds the mechanism safely during operation. |
| Electrical Control System | Control cabinet, contactors, inverter, cables, and protection devices. | Controls lifting, lowering, trolley traveling, and safety functions. |
| Limit Switch | Travel and lifting limit protection device. | Helps prevent over-lifting, over-lowering, and trolley over-travel. |
| Overload Protection Device | Optional safety device for load monitoring. | Helps prevent lifting loads beyond rated capacity. |
Common Types of Double Girder Hoist Trolley
ZOKECRANE can provide different types of double girder hoist trolleys according to lifting capacity, hoist type, control method, working duty, crane type, and project requirements.
| Type | Description | Typical Application |
|---|---|---|
| Standard Double Girder Electric Hoist Trolley | Traditional electric wire rope hoist mounted on a double girder trolley frame. | General workshops, warehouses, equipment maintenance, material handling |
| Double Girder Wire Rope Hoist Trolley | Uses a wire rope hoist as the lifting unit for double girder cranes. | Industrial plants, manufacturing workshops, assembly areas |
| European-Style Double Girder Hoist Trolley | Compact structure, optimized layout, and smoother operation. | Modern workshops, production lines, high-efficiency material handling systems |
| Variable Frequency Double Girder Hoist Trolley | Equipped with inverter control for smooth starting, stopping, and speed adjustment. | Precise positioning, frequent operation, sensitive load handling |
| Dual Speed Double Girder Hoist Trolley | Provides normal speed and slow speed for lifting or trolley traveling. | Equipment installation, maintenance work, accurate load positioning |
| Heavy Duty Double Girder Crane Hoist Trolley | Designed for higher load capacity and demanding working conditions. | Steel plants, machinery manufacturing, heavy equipment workshops |
| Replacement Hoist Trolley for Double Girder Crane | Supplied as a replacement unit for existing crane systems. | Crane repair, modernization, capacity upgrade, old trolley replacement |
| Customized Double Girder Hoist Trolley | Designed according to special rail gauge, lifting height, speed, duty, and site conditions. | Non-standard cranes, special production lines, customized lifting projects |
Typical Technical Parameters
The following parameters are for general reference. ZOKECRANE can customize double girder hoist trolleys according to specific crane design and project requirements.
| Item | Specification |
|---|---|
| Product Name | Double Girder Hoist Trolley |
| Alternative Name | Double Girder Electric Hoist Trolley / Wire Rope Hoist Trolley for Double Girder Crane / Double Girder Crane Hoist Trolley |
| Crane Type | Double girder overhead crane / double girder gantry crane / customized double beam lifting system |
| Hoist Type | Electric wire rope hoist / European-style hoist / customized hoist |
| Lifting Capacity | 3 ton, 5 ton, 10 ton, 16 ton, 20 ton, 32 ton or customized |
| Lifting Height | Customized according to site requirement |
| Rail Gauge | Customized according to crane structure and trolley design |
| Hoisting Speed | Single speed / dual speed / variable frequency speed / customized |
| Trolley Traveling Speed | Single speed / dual speed / variable frequency speed / customized |
| Working Duty | Customized according to application and operation frequency |
| Control Method | Pendant control / wireless remote control / cabin control / PLC control |
| Power Supply | Customized according to customer country and project requirement |
| Safety Devices | Limit switch, overload protection, emergency stop, brake system, electrical protection |
| Application | Lifting, moving, positioning, equipment installation, material handling |
| Installation | Mounted on rails of double girder crane |
| Certification | ISO, CE, SGS available |
Applications of Double Girder Hoist Trolley
Double girder hoist trolleys are widely used as lifting mechanisms for double girder overhead cranes, double girder gantry cranes, and customized material handling systems.
Workshops and Manufacturing Plants
Double girder hoist trolleys are widely used in machinery manufacturing workshops, assembly plants, maintenance areas, and production facilities for lifting machines, steel parts, molds, tools, and industrial components.
Warehouses and Logistics Centers
In warehouses and logistics centers, double girder hoist trolleys can be integrated with overhead cranes or gantry cranes to handle heavy goods, containers, machinery, steel coils, and palletized materials.
Steel Structure and Metal Processing
Double girder hoist trolleys are suitable for steel structure workshops, metal processing plants, fabrication areas, and steel storage yards, where reliable lifting and horizontal load movement are required.
Equipment Installation and Maintenance
During equipment installation or maintenance, the hoist trolley helps lift, move, and accurately position heavy machines, gearboxes, motors, molds, and production equipment.
Power Plants and Energy Projects
Double girder hoist trolleys can be used in power plants, hydropower stations, waste treatment plants, and energy projects for equipment maintenance, component replacement, and heavy-duty material handling.
Construction and Infrastructure Projects
When installed on double girder gantry cranes or temporary lifting systems, double girder hoist trolleys can assist in bridge construction, tunnel construction, precast beam handling, and infrastructure installation.
Ports, Yards, and Outdoor Material Handling
Double girder hoist trolleys can be used with outdoor gantry cranes for material handling in yards, ports, storage areas, prefabrication yards, and construction sites.
Crane Modernization Projects
For existing double girder cranes, a new hoist trolley can be supplied as a replacement or upgrade solution to improve lifting performance, control accuracy, safety protection, and operating efficiency.
Why Choose ZOKECRANE Double Girder Hoist Trolley?
Professional Crane and Hoist Manufacturer
ZOKECRANE is operated by Henan Zoke Crane Co., Ltd., a professional lifting equipment manufacturer specializing in overhead cranes, gantry cranes, electric hoists, trolley mechanisms, and customized lifting solutions. Our manufacturing base is located in Changyuan, Henan Province, one of China’s major crane production centers.
Reliable Product Quality
ZOKECRANE has established a comprehensive quality management system and obtained ISO, CE, and SGS certifications. We focus on trolley structure design, welding quality, machining accuracy, wheel assembly, hoist performance, reducer transmission, motor selection, electrical control, safety protection, testing, packaging, and delivery inspection.
Customized Crane Trolley Solutions
ZOKECRANE can customize double girder hoist trolleys according to crane type, lifting capacity, lifting height, rail gauge, wheel diameter, traveling speed, hoisting speed, working duty, hook type, control method, voltage, installation conditions, and environmental requirements.
Suitable for New Crane and Replacement Projects
ZOKECRANE double girder hoist trolleys can be supplied together with complete overhead cranes and gantry cranes, or separately as replacement units for existing crane systems. They are suitable for crane repair, modernization, capacity upgrades, and new crane manufacturing.
International Export Experience
ZOKECRANE products have been supplied to customers in Russia, Uzbekistan, the Philippines, Bangladesh, Australia, Qatar, Tanzania, Singapore, Saudi Arabia, Brazil, Nigeria, and many other countries and regions. We understand international project communication, export packaging, container loading, logistics arrangements, and overseas customer documentation requirements.
Professional Technical Support
ZOKECRANE can provide product selection support, technical drawings, trolley rail gauge drawings, installation drawings, electrical diagrams, operation manuals, maintenance manuals, spare parts lists, inspection documents, and remote technical assistance for global customers.
Frequently Asked Questions About Double Girder Hoist Trolley
1. What is a double girder hoist trolley?
A double girder hoist trolley is a lifting trolley designed to travel on rails installed on the top of two crane girders. It usually includes an electric wire rope hoist, trolley frame, traveling mechanism, wheel group, electrical control system, hook block, wire rope, and safety devices. It is commonly used on double girder overhead cranes and double girder gantry cranes.
2. What is the difference between a double girder hoist trolley and a single girder hoist?
A single girder hoist is usually suspended under one main girder, while a double girder hoist trolley travels on rails mounted on two main girders. A double girder hoist trolley is generally more suitable for higher lifting capacities, larger lifting heights, better hook approach, and heavier working conditions.
3. Can the hoist trolley be used on a gantry crane?
Yes. A double girder hoist trolley can be used on double girder gantry cranes, double girder overhead cranes, and other double beam lifting systems, as long as the rail gauge, wheel load, lifting capacity, and structural design are properly matched.
4. Can ZOKECRANE supply the trolley separately?
Yes. ZOKECRANE can supply the double girder hoist trolley separately for new crane manufacturing, crane repair, replacement projects, modernization projects, and customer-designed crane systems.
5. What lifting capacity can ZOKECRANE provide?
Common lifting capacities include 3 ton, 5 ton, 10 ton, 16 ton, 20 ton, and 32 ton. Larger or customized capacities can be designed according to project requirements.
6. Can the rail gauge be customized?
Yes. The rail gauge of the double girder hoist trolley can be customized according to the crane structure, main girder design, trolley track layout, lifting capacity, and customer site conditions.
7. Can the lifting height be customized?
Yes. The lifting height can be customized according to workshop height, crane design, hook travel, drum capacity, wire rope arrangement, and customer project requirements.
8. What control methods are available?
Common control methods include pendant control, wireless remote control, cabin control, PLC control, and customized control systems. Variable frequency control can also be provided for smoother operation and better positioning accuracy.
9. Can ZOKECRANE provide variable frequency control?
Yes. ZOKECRANE can provide inverter control for hoisting and trolley traveling mechanisms. Variable frequency control helps achieve smooth starting, smooth stopping, speed adjustment, reduced load swing, and improved positioning accuracy.
10. What information is needed for quotation?
To provide a suitable double girder hoist trolley solution, please provide:
- Lifting capacity
- Lifting height
- Crane type: overhead crane or gantry crane
- Rail gauge of trolley
- Hoisting speed requirement
- Trolley traveling speed requirement
- Working duty or daily working frequency
- Power supply voltage and frequency
- Control method: pendant control, remote control, cabin control, or PLC control
- Installation environment: indoor or outdoor
- Existing crane drawings, if it is a replacement project
- Rail model or rail size
- Hook type or lifting attachment requirement
- Destination country or port
- Any special safety or certification requirements
11. Can the trolley be used for an existing crane?
Yes. ZOKECRANE can provide replacement double girder hoist trolleys for existing cranes. Customers are recommended to provide existing crane drawings, rail gauge, lifting capacity, lifting height, rail size, available installation space, power supply, and photos of the crane structure.
12. Can ZOKECRANE provide spare parts?
Yes. ZOKECRANE can provide spare parts such as wire rope, hook block, motor, reducer, brake, brake wheel, trolley wheels, bearings, limit switches, control cabinet components, pendant control, wireless remote control, cables, electrical components, and customized accessories.
Export and Logistics FAQ for ZOKECRANE Double Girder Hoist Trolley
1. Can ZOKECRANE export double girder hoist trolleys overseas?
Yes. ZOKECRANE has experience in exporting crane equipment and lifting components to international markets. Our products have been supplied to customers in Russia, Uzbekistan, the Philippines, Bangladesh, Australia, Qatar, Tanzania, Singapore, Saudi Arabia, Brazil, Nigeria, and many other countries and regions.
2. How is the double girder hoist trolley packed for export?
Double girder hoist trolleys are usually packed with export-standard wooden cases, steel frames, pallets, waterproof wrapping, or customized packaging according to trolley size, weight, hoist dimensions, wheel arrangement, electrical components, accessories, shipping method, and customer requirements. Electrical parts and spare parts can be packed separately for better protection.
3. Can the double girder hoist trolley be shipped by sea?
Yes. Double girder hoist trolleys can be shipped by sea freight, including LCL shipment and FCL shipment. For large trolley units, container loading plans can be arranged according to package dimensions, gross weight, lifting points, center of gravity, and destination port requirements.
4. Can the trolley be shipped by air?
Yes. Smaller hoist trolley components, spare parts, electrical parts, and urgent replacement items can be shipped by air freight or international courier, depending on package size, gross weight, delivery time, and customer budget. For complete large hoist trolleys, sea freight is usually more economical.
5. Can the hoist trolley be shipped together with a crane?
Yes. If the hoist trolley is ordered together with a double girder overhead crane, double girder gantry crane, crane girder, end carriage, electric hoist, control cabinet, or other crane components, ZOKECRANE can arrange combined packaging and container loading for the complete crane order.
6. What shipping methods are available?
Common shipping methods include:
- Sea freight
- LCL shipment
- FCL shipment
- Air freight
- International courier
- Land transportation
- Railway transportation
- Multimodal transportation
The suitable shipping method depends on trolley quantity, package size, gross weight, destination country, delivery time requirement, trade terms, and customer budget.
7. Can ZOKECRANE assist with logistics?
Yes. ZOKECRANE can assist with international logistics arrangements based on agreed trade terms. Customers can also use their own appointed freight forwarder.
8. What export documents can ZOKECRANE provide?
ZOKECRANE can usually provide the following export and technical documents:
- Commercial invoice
- Packing list
- Bill of lading or air waybill
- Certificate of origin, if required
- Product certificate
- Quality inspection report, if required
- CE-related documents, if required
- SGS-related documents, if required
- Technical drawing
- Installation drawing
- Trolley rail gauge drawing
- Electrical drawing
- Operation manual
- Maintenance manual
- Spare parts list
- Packing photo or loading photo, if required
- Test report, if required
The actual document list can be prepared according to customer requirements, destination country customs clearance requirements, trade terms, and project requirements.
9. What should customers check after receiving the hoist trolley?
After receiving the double girder hoist trolley, customers should check:
- Package condition
- Shipping marks and packing list
- Trolley frame
- Electric wire rope hoist
- Hoisting motor
- Hoisting reducer
- Drum
- Wire rope
- Hook block
- Trolley traveling motor
- Trolley reducer
- Wheel groups
- Brake system
- Control cabinet
- Pendant control
- Wireless remote control, if included
- Limit switches and safety devices
- Electrical cables and connectors
- Bolts, pins, fasteners, and accessories
- Spare parts, if included
- Technical documents and manuals
- Nameplate and product markings
If any damage, shortage, or inconsistency is found, please contact ZOKECRANE promptly with photos, packing list, and shipping documents.
10. Can spare parts be shipped separately?
Yes. Spare parts such as wire rope, hook block, motors, reducers, brakes, trolley wheels, bearings, limit switches, pendant controls, wireless remote controls, electrical components, cables, fasteners, and customized accessories can be shipped separately by courier, air freight, sea freight, or other suitable shipping methods.
11. Can the packaging be customized?
Yes. ZOKECRANE can customize packaging according to customer instructions, shipping method, destination country requirements, container loading plan, and project requirements. Special labels, waterproof packaging, wooden cases, steel frames, pallets, and shipping marks can be arranged before shipment.
12. How long does production and delivery take?
Production and delivery time depends on lifting capacity, trolley rail gauge, lifting height, hoist type, motor power, reducer type, wheel group, control system, safety devices, customization level, order quantity, production schedule, and shipping route. After technical requirements, drawings, commercial terms, and payment details are confirmed, ZOKECRANE can provide a production and delivery plan.