Three-Trolley Electric Hoist Bridge Crane
Parameters of Three-Trolley Electric Hoist Bridge Crane Manufactured by Henan Mine Crane
| Parameter | Specification | Unit | Remarks |
| Rated Lifting Capacity | 1 – 32 | t | Customizable |
| Span | 7.5 – 31.5 | m | Adjustable according to workshop |
| Lifting Height | 6 – 30 | m | Customizable |
| Working Class | A5 – A6 | – | Medium-heavy duty |
| Hoisting Speed | 0.8/5 – 8/16 | m/min | Dual-speed & frequency conversion |
| Trolley Travel Speed | 5 – 25 | m/min | Stepless speed regulation |
| Crane Travel Speed | 10 – 30 | m/min | Frequency conversion control |
| Hoist Arrangement | C-Type Layout | – | Low-headroom design |
| Protection Level | IP54 | – | Dust-proof & splash-proof |
| Power Supply | 220-690V, 50/60Hz | V | Customizable for global market |
| Material | High-Strength Q355B Steel | – | Ultrasonic welding testing |
| Certification | ISO, CE, FEM | – | Direct export without modification |
| Control Mode | Remote Control + Cabin Control | – | Optional wireless remote |
| Type Test Code | KSSLS | – | Electric Hoist Bridge Crane |
| Application | Paper Mill, Workshop, Maintenance | – | Mainly for paper industry |
Product Introduction of Henan Mine Crane Three-Trolley Electric Hoist Bridge Crane
Henan Mine Crane Three-Trolley Electric Hoist Bridge Crane is a special lifting equipment specially designed for the global paper industry, machining workshop, assembly workshop, working level A5-A6, can complete the large-scale workpiece handling, equipment overhaul, precise lifting, multi-station cooperative work in the whole process of the task, suitable for the paper mill humid and dusty, limited space in the workshop, medium and high-frequency continuous operation of the working condition.
1. Product core positioning and design standards
Henan Mine Crane Three-Trolley Electric Hoist Bridge Crane core positioning: to provide efficient, accurate, energy-saving, space-saving lifting and handling and equipment maintenance solutions for the global paper industry, machining, assembly, warehousing and logistics.
2. Core structure and functional design
- Three-trolley Cooperative Operation System: Adopting three-trolley independent/linkage dual control design, it can synchronously complete multi-station lifting and long-size workpiece transfer, and the operation efficiency can be increased by more than 60% compared with the traditional single-trolley overhead crane, which is suitable for the efficient handling of large paper rolls in paper mills and heavy workpieces in mechanical workshops, and it is not necessary to collaborate with multiple equipments, which can greatly shorten the operation cycle and reduce the cost of labor cooperation.
- Low headroom compact structure: Innovative hoist C-type arrangement + square welding cover design, greatly reducing the headroom height and limit size of the equipment, the same lifting height can reduce the height of the factory building 300-800mm, wheel pressure reduced by 10%-35%, reducing the structural load-bearing requirements of the factory building, direct savings in civil engineering investment, to match the limited space of the old workshop and the new factory building, taking into account the practicality and economy.
- Frequency conversion speed control and precise positioning system: equipped with dual-speed motor and frequency conversion stepless speed control technology, light load high speed, heavy load slow speed, low-speed positioning accuracy up to ±5mm, running smoothly without impact, avoiding collision damage to the workpiece, suitable for precision equipment overhaul, workpiece precision assembly and other scenarios, to enhance the safety and stability of the operation and reduce the cost of workpiece wear and tear.
- Modularization and energy-saving design: the use of high-strength Q355B steel modularization, the machine weight reduction of 15%-30%, with a large diameter reel to reduce the wear and tear of the wire rope, energy consumption is significantly reduced compared with traditional equipment; the core components of the hardened gear reducer, forged wheels, ultrasonic welding detection, no welding hazards, longer service life, lower maintenance costs.
- Intelligent Internet of Things (IoT) expansion function: Supporting IoT remote monitoring, fault self-diagnosis, data visualization and intelligent operation and maintenance, overseas customers can check the operating parameters of the equipment in real time through cell phones or computers, and enjoy 24/7 remote technical support without on-site guarding, which significantly reduces the operation and maintenance cost and response time, and improves the operating efficiency of the equipment.
- Full-dimensional protection and global adaptability: the whole machine protection level reaches IP54, dust and splash-proof, key components are sealed and anticorrosive treatment, suitable for humid and dusty working conditions in paper mills; the power supply can be customized to 220V-690V/50-60Hz, in line with the global standards of national power grids, and has passed the ISO, CE, and FEM certifications, so that it can be exported without modification, and is suitable for the workshop environments and industry norms of different regions around the world. 3. Core Product Advantages

3. Core product advantages
- High-efficiency cooperative operation: three trolleys can operate independently or linkage, and can complete 25-35 workpieces lifting/transferring operations per hour, which is 60% higher than the efficiency of traditional single-trolley equipment, and can directly complete multi-station synchronous operations without the need for multiple equipment handover, which can significantly shorten the turnaround time of the workpieces and enhance the workshop production efficiency.
- Extreme space utilization: low headroom C-type layout + lightweight structure, significantly reduce the cost of plant construction and renovation, wheel pressure reduced by 10% -35%, without reinforcing the structure of the plant, suitable for all kinds of limited space workshop scenarios, especially suitable for upgrading the old workshop, without the need to take up additional space.
- Accurate and stable, safe and reliable: double-speed motor + frequency conversion speed control, positioning accuracy of ± 5mm, running smoothly without impact, with multiple safety protection, to eliminate collision, overload and other safety hazards, the accident rate tends to be close to zero, to meet the high standard of precision equipment overhaul, fragile workpiece lifting and other operational needs.
- Energy-saving and cost-effective: modular lightweight design + energy optimization configuration, energy consumption is reduced by more than 20% compared with traditional equipment; designed service life of more than 18 years, the annual maintenance cost is only 2%-3% of the total price of the equipment, the price of the international first-tier brands is lower by 20%-30%, which significantly reduces the customer’s full life cycle operating costs.
- Strong global adaptability: support CE, ISO, FEM and other international certifications, power supply specifications, control methods can be customized globally, without modification can be directly exported to more than 60 countries and regions around the world, adapted to different regions of the workshop operating norms and power grid standards, export customs clearance assistance throughout the process.
- Convenient maintenance and worry-free after-sales service: the core components adopt international common specifications and are easy to purchase and replace; the modularized design eliminates the need to dismantle the whole machine and makes daily maintenance simple, which can be accomplished by the operators after simple training; the global layout of service outlets and the 95% stocking rate of the core spare parts can be dispatched to all parts of the world within 72 hours.
4. Global Adaptation and Application Scenarios
- Application Scenarios: Global paper mills, machining workshops, assembly workshops, warehousing and logistics centers, power equipment maintenance workshops, textile/food workshops, used for large paper rolls handling, equipment installation and maintenance, heavy-duty workpiece transfer, precision assembly, material lifting, etc., can also be adapted to prefabricated components, large molds and other special workpiece transfer needs.
- Standardization: Support CE, ISO, FEM, IEC and other international certifications, assist customers with export customs clearance procedures, provide a full set of technical data (installation drawings, operation manuals, maintenance manuals) in English/Spanish/Arabic/Russian to meet the industry norms and equipment access requirements of different countries and regions around the world.
- Environmental adaptation: humidity resistance, dust resistance, adapt to a wide range of temperature environments, stable operation in extreme environments ranging from -25℃ to +40℃; paper mills, chemical workshops can be upgraded with additional anticorrosion configurations, adapting to the more demanding humid and dusty environments; high-altitude and cold regions can be customized with low-temperature start-up configurations to ensure stable operation in all scenarios.
5. Global exclusive supporting services
- Provide English/Spanish/Arabic/Russian full set of technical data, installation drawings, operation manuals, maintenance manuals, in line with international industry standards, to facilitate global customers for equipment access and operator training, to help quickly get started.
- 7×24 hours global remote video installation and commissioning guidance, equipped with professional three trolley electric hoist overhead crane technical team, according to customer demand arrangements for door-to-door installation and commissioning, operator systematic training, cost transparency can be negotiated, the whole one-on-one service.
- Germany, the United States, Malaysia, the United Arab Emirates, South Africa and other core regions of the world with spare parts agents, motors, gearboxes, wire ropes, electronic control modules and other common wearing parts factory supply, within 72 hours can be shipped to the world’s neighboring countries / regions, to protect the continuous operation of the equipment.
- Open 7×24 hours multi-language after-sales hotline, professional Three-Trolley Electric Hoist Bridge Crane technical engineers, to provide remote troubleshooting, maintenance guidance, control system debugging, intelligent function upgrades, and other full-cycle solutions, and complex faults can be arranged for overseas network personnel to deal with on-site.
What Can Henan Mine Crane Three-Trolley Electric Hoist Bridge Crane Offer You?
| Value Category | Specific Benefits | Description |
| Space Utilization | Low-Headroom & Compact Design | C-type hoist layout + square welded cover, reduce headroom and limit size, lower workshop height and foundation cost |
| Operation Efficiency | Three-Trolley Collaborative Work | Three trolleys can work independently or jointly, improve handling efficiency by 60%+, suitable for large-size workpiece handling |
| Precision & Stability | Dual-Speed + Frequency Conversion | Dual-speed motor + variable frequency control, high-speed lifting & low-speed precise positioning, smooth operation without impact |
| Durability & Energy Saving | High-Strength & Lightweight Structure | Modular high-strength steel, self-weight reduced by 15-30%, long service life, lower energy consumption |
| Intelligent Operation | IoT Remote Monitoring & O&M | Expand IoT function, remote monitoring, fault diagnosis, intelligent operation and maintenance |
| Global Adaptability | International Standard & Certification | Comply with FEM/IEC standards, ISO/CE certified, customizable power supply, direct export worldwide |
| Maintenance Convenience | Easy Maintenance & Long Lifespan | Hardened gear reducer, steel reel, forged wheels, less wearing parts, low maintenance cost |
| Load Adaptability | Wide Lifting Capacity Range | Suitable for paper mill roll handling, equipment maintenance, general workshop material handling |
| Safety Performance | Stable & Reliable Operation | Multiple safety protections, anti-sway, overload protection, ensure operation safety |
| Cost Reduction | Lower Workshop & Operation Cost | Reduce wheel pressure by 10-35%, lower workshop structure requirement, save total investment |
| Scenario Adaptation | Multi-Industry Application | Mainly for paper industry, also for machinery, logistics, power, textile and food workshops |
Three-Trolley Electric Hoist Bridge Crane Parameter Table
| Capacity | T | 5 | ||||||
| Span | m | 7.5 | 10.5 | 13.5 | 16.5 | 19.5 | 22.5 | 25.5 |
| Lifting height | m | 6/9/12/18/24/30 | ||||||
| Lifting speed | m/min | 8or8(8/0.8) | ||||||
| Trolley travelling speed | m/min | 20 | ||||||
| Crane travelling speed | m/min | 20 | ||||||
| Total weight | kg | 5230 | 6400 | 7450 | 8600 | 10560 | 12350 | 14850 |
| Max. Wheel load | KN | 39 | 43 | 48 | 53 | 59 | 62 | 71 |
| Rail recommended | Model | 38kg/m | ||||||
| Total motor power | kw | 8.3 | ||||||
| Main dimension (mm) | Span(m) | 7.5 | 10.5 | 13.5 | 16.5 | 19.5 | 22.5 | 25.5 |
| Rail top to crane top | H | 1350 | 1550 | |||||
| Rail top to hook center | H4 | 385 | 540 | |||||
| Crane base distance | W | 2700-3100 | 3200-3600 | 3800 | ||||
| Crane width | B | 3200-3900 | 3700-4200 | 5300 | ||||
| Trolley rail distance | K | 1400-1800 | ||||||
| Hook left limitation | S1 | 1200 | 1200 | |||||
| Hook right limitation | S2 | 1200 | 1200 | |||||
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Capacity |
T |
20/5 |
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|
Span |
m |
7.5 |
10.5 |
13.5 |
16.5 |
19.5 |
22.5 |
25.5 |
|
Lifting height |
m |
9/12/18/24 |
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Lifting speed |
m/min |
3.5(3.5/0.35) or8(8/0.8) |
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|
Trolley travelling speed |
m/min |
20 |
||||||
|
Crane travelling speed |
m/min |
20 |
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Total weight |
kg |
10500 |
11500 |
13640 |
15980 |
17700 |
20300 |
22920 |
|
Max. Wheel load |
KN |
118 |
129 |
135 |
148 |
156 |
164 |
169 |
|
Rail recommended |
Model |
38kg/m |
||||||
|
Total motor power |
kw |
19.3 |
||||||
|
Main dimension (mm) |
Span(m) |
7.5 |
10.5 |
13.5 |
16.5 |
19.5 |
22.5 |
25.5 |
|
Rail top to crane top |
H |
1790 |
||||||
|
Rail top to hook center |
H4 |
-350 |
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|
Crane base distance |
W |
3750-4500 |
||||||
|
Crane width |
B |
4632-5982 |
||||||
|
Trolley rail distance |
K |
1600-2550 |
||||||
|
Hook left limitation |
S1 |
1100 |
||||||
|
Hook right limitation |
S2 |
1100 |
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|
Capacity |
T |
32/10 |
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|
Span |
m |
7.5 |
10.5 |
13.5 |
16.5 |
19.5 |
22.5 |
25.5 |
|
Lifting height |
m |
9/12/16/24 |
||||||
|
Lifting speed |
m/min |
3(3/0.3) or7(7/0.7) |
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|
Trolley travelling speed |
m/min |
20 |
||||||
|
Crane travelling speed |
m/min |
20 |
||||||
|
Total weight |
kg |
12530 |
14660 |
16360 |
18870 |
21650 |
24260 |
27060 |
|
Max. Wheel load |
KN |
167 |
184 |
196 |
206 |
215 |
224 |
233 |
|
Rail recommended |
Model |
43kg/m |
||||||
|
Total motor power |
kw |
20 |
||||||
|
Main dimension (mm) |
Span(m) |
7.5 |
10.5 |
13.5 |
16.5 |
19.5 |
22.5 |
25.5 |
|
Rail top to crane top |
H |
1900 |
||||||
|
Rail top to hook center |
H4 |
-700 |
||||||
|
Crane base distance |
W |
1600-2500 |
||||||
|
Crane width |
B |
5070-5960 |
5572-6222 |
|||||
|
Trolley rail distance |
K |
1600-2550 |
||||||
|
Hook left limitation |
S1 |
1100 |
||||||
|
Hook right limitation |
S2 |
1600 |
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Product Advantages Overview
Details of the Three-Trolley Electric Hoist Bridge Crane
What industries are the Three-Trolley Electric Hoist Bridge Crane suitable for?
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Heavy Equipment Manufacturing WorkshopThe three-trolley overhead crane is equipped with three independent running trolleys, which can work individually at a single point or be lifted synchronously by multiple trolleys, which is suitable for the smooth lifting and shifting of large heavy equipment and heavy components.
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Steel Structure Processing PlantThe three-trolley overhead crane is designed for the transfer of extra-long steel beams, steel columns, and shaped steel components, with multiple trolleys to disperse the force, avoiding the bending and deformation of long materials, and meeting the demand for processing and handling of large-span workpieces.
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Complete set of equipment assembly workshopThe three-trolley overhead crane operates at multiple stations simultaneously without interfering with each other, and different areas can independently lift accessories, semi-finished products and complete machine parts, which effectively improves the assembly efficiency of the workshop assembly line.
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Large mold stamping workshopThe three-trolley overhead crane can not only carry small workpieces with a single trolley, but also lift large molds with two or three trolleys, with flexible disassembling and transferring and accurate positioning.
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Wind power and hydropower equipment production baseThe three-trolley overhead crane is suitable for wind turbine fittings, hydropower units and other long and wide shaped parts, and the multi-vehicle coordinated load sharing solves the problem of lifting non-standard heavy components.
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Heavy Equipment Maintenance WorkshopThree trolleys overhead cranes are used for overhauling, dismantling and installing large machinery and equipment in the factory, and the light and heavy materials are lifted in different areas, and the three trolleys are flexibly deployed to adapt to the complex maintenance working conditions.
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Mechanical parts processing plantThe three overhead cranes can independently lift rough parts, processed parts and finished products in different areas under the scene of multi-process cross operation, which can run efficiently and save waiting time.
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Metallurgical supporting processing sectionThe three-trolley overhead crane can be adapted to the high dust and continuous operation environment in the workshop, and is durable and resistant to construction. It can complete the high-frequency transfer of metallurgical fittings, heavy blanks and auxiliary consumables.
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Large industrial finished goods warehouseThree overhead cranes for indoor heavy goods partition stacking, in and out of the warehouse handling, three trolleys to cover the entire operating range, a clear division of labor, and significantly improve the efficiency of the warehouse turnover.
How to Choose the Best Crane Manufacturer in China
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1Clarify Your Crane NeedsThoroughly understand your lifting requirements (load details, frequency, and workspace environment) before approaching crane manufacturers.
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2Determine Crane Service ClassCalculate the required crane service class based on your operational intensity to ensure optimal performance and longevity.
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3Explore Crane Supplier Custom Features:Investigate available customization options and special features to enhance safety, efficiency, and precision for your specific application.
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4Assess Crane Factory Engineering CapabilityEvaluate the manufacturer's engineering strength to ensure they can design a suitable solution tailored to your needs.
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5Verify Quality & Compliance of Crane CompanyCheck the crane manufacturer's manufacturing quality, certifications, and compliance with international standards and your local safety regulations.
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6Ensure Support & ReferencesConfirm the manufacturer provides reliable after-sales support and has a proven track record with positive references in your industry or region.
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Your Top Concerns About Henan Mine Crane manufactured Three-Trolley Electric Hoist Bridge Crane and Answers
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What flexible cooperation options are available for international clients?Answer: We offer globally competitive cost-performance ratios and diversified international cooperation solutions! We provide multiple trade term options including FOB, CIF, and DDP, along with customized payment methods such as letters of credit, installment payments, and milestone-based project payments.
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What are the core advantages of the three-trolley design over traditional single-trolley bridge machines?The three trolleys can work independently/linked, can synchronize the handling of long-sized workpieces, increase the operating efficiency by more than 60%, and support the synchronous operation of multiple work stations.
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How much can the low headroom design save us in terms of plant cost?The C-shaped layout can reduce the headroom height by 300-800mm, the weight of the whole machine can be reduced by 15%-30%, and the wheel pressure can be reduced by 10%-35%, which greatly reduces the cost of plant construction.
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Is the machine suitable for the humid and dusty environment of the paper industry?It is fully compatible with IP54 protection level, dust and splash-proof, and the key components are sealed and anticorrosive treatment, which can be operated stably for a long period of time.
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How much lifting accuracy can be achieved with double-speed + frequency conversion speed control?Low-speed positioning accuracy of ±5mm, running smoothly without shaking, to meet the needs of precision assembly and equipment maintenance.
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Can it realize IOT remote monitoring and how to operate and maintain overseas?Remote monitoring and fault diagnosis are supported. Overseas customers can enjoy 7×24 hours remote technical support to reduce operation and maintenance costs.
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Has the equipment passed CE/ISO certification and can it be directly exported to the EU?Yes. With ISO, CE and FEM certifications, the equipment can be directly exported to countries all over the world without modification.
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Can we customize the parameters according to the size and load of our workshop?Yes. Modular design, customized lifting capacity, span, lifting height, power supply and control mode.
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Is it difficult to maintain the equipment and how long do the core components last?Maintenance is simple, the core components have a life span of 8-10 years, and only routine lubrication is required, so maintenance costs are extremely low.
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Will there be any collision or interference when the three trolleys are running at the same time?No. Equipped with anti-collision limit and synchronization control program, automatically maintain a safe distance to eliminate collision interference.
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What is the applicable working environment temperature of the equipment?Standard working conditions -25℃~+40℃, can be customized high and low temperature adapted version, to meet the use of different regions of the world.
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In addition to the paper industry, what other scenarios can be adapted?It can also be used for material lifting and equipment maintenance in machining, assembly, storage and logistics, electric power overhaul, textile, food and other workshops.
Operating Manual for Three-Trolley Electric Hoist Bridge Crane
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Each crane must display a rated load capacity plate in a conspicuous location.
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No personnel are permitted on the girder during operation, nor may the hook be used to transport persons
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Operation is prohibited without a valid operator's license or under the influence of alcohol.
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Operators must maintain full concentration during operation; talking, smoking, or engaging in unrelated activities is strictly forbidden.
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Keep the crane clean and tidy; do not store equipment, tools, flammable materials, explosives, or hazardous substances haphazardly.
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Do not overload the crane.
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When operating along obstacle-free paths, the hook, lifting device, or bottom surface of the load must remain at least 2 meters above ground level. When crossing obstacles, the load must clear the obstacle by at least 0.5 meters
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For loads under 50% of rated capacity, both lifting mechanisms may operate simultaneously. For loads exceeding 50% of rated capacity, only one mechanism may operate.
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.For bridge cranes equipped with main and auxiliary hooks, do not simultaneously raise or lower both hooks (except under special circumstances).
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Welding or hammering on suspended loads, or working beneath suspended loads, is prohibited (except when properly supported).
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Inspection or maintenance work may only be performed after power has been disconnected and a “Do Not Operate” sign is displayed on the power switch. If live work is unavoidable, implement safety measures and assign dedicated supervision.
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Do not throw objects from the vehicle indiscriminately.
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Regularly inspect limit switches and interlock protection devices.
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Do not use limit switch impact as a stopping method.
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Do not lift or lower loads when hoist brakes malfunction.
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Do not operate the hoist above personnel or equipment.
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When welding any part of the crane, use a dedicated ground wire; do not use the crane body as a ground.
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When the hook is at its lowest position, ensure at least two full turns of safety rope remain on the drum.
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Cranes must not collide with each other; using one crane to push another into operation is strictly prohibited.
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When lifting heavy objects, molten metal, explosives, or hazardous materials, first slowly raise the load 100–200 mm off the ground to test brake reliability.
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Maintenance and inspection lighting must operate at voltages below 36V.
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All electrical equipment enclosures on bridge cranes must be grounded. If trolley rails are not welded to the main girder, grounding measures must be implemented. Grounding conductors may use galvanized flat iron with a cross-sectional area exceeding 75mm², bare copper wire of 10mm², or galvanized round steel exceeding 30mm². The operator's cab or crane body shall have more than two grounding points. The grounding resistance from any point on the crane to the power supply neutral point shall be less than 4Ω.
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