The Weihua BMH electric hoist semi-gantry crane is an economical lifting device launched by Weihua Group for the light material handling market. This product is used in conjunction with wire rope electric hoists of models such as CD1 and MD1, and is a small to medium-sized rail-mounted semi-gantry crane. Its unique semi-gantry structure design—one leg runs along a ground track, and the other runs along a track on the factory's load-bearing beam or wall—makes it particularly suitable for lifting operations within a half-span range, perfectly solving the applicability issues of traditional bridge cranes and full gantry cranes in certain special working conditions.
This product is a general-purpose crane with a lifting capacity ranging from 1 ton to 16 tons, a suitable span of 5 meters to 20 meters, a lifting height of 6 meters to 9 meters, and a working class of A4. It is suitable for working environments from -20℃ to +40℃. The product can be widely used for loading and unloading operations in open-air locations and warehouses, and is also suitable for material handling in indoor environments such as machine shops.
In terms of control methods, the BMH electric hoist semi-gantry crane offers both ground operation and remote control operation, allowing users to flexibly choose according to their working environment and operating habits. With its compact structure, light weight, low cost, easy operation, safety, reliability, and attractive appearance, this machine is an ideal choice for small and medium-sized enterprises to achieve mechanized material handling.
Parameter
Lifting capacity
↑
2
3
5
10
Span
m
10
12
16
20
10
12
16
20
10
12
16
20
10
12
16
20
Lifting Height
m
6
6
6
6
Travellin mechanismg
Travelling Speed
Ground
m/min
20
20
20
20
cab
20 30
20 30
20 30
20 30
Motor
Ground
ZDY(D),21-4/0.8x2
ZDY,(D)22-4/1.5x2
ZDY[D),21-4/0.8x2
ZDY[D],22-4/1.5x2
ZDY[D),21-4/0.8x2
ZDY(D),22-4/1.5x2
ZDY[D)122-4/1.5x2
ZDY,31S-4/2.2x2
cab
ZDR100-4(D)1.5x2
ZDR100-4(D)1.5x2
ZDR100-4(D)1.5x2
ZDR100-4/1.5x2
ZDR112L1-4/2.1x2
Reducer
LDAC,LDA,
LDAC1 LDA1
LDAC1 LDA1
LDA1 LDAC1
LDH LDHC
Wheel diameter
mm
Φ270
Φ270
Φ270
270
400
Electrical hoist
Type
CD, MD,
CD MD
CD1 MD
CD MD
Lifting speed
m/min
8 8/0.8
8 8/0.8
8 8/0.8
7 7/0.7
Travelling speed
m/min
20(30)
20(30)
20(30)
20(30)
Model
Lifting
ZD,31-4/3 ZDS,0.4/3
ZD,32-4/4.5 ZDS,0.4/4.5
ZD,41-4/7.5 ZDS,0.8/7.5
ZD,51-4/13 ZDS,1.5/13
Travelling
ZDY,12-4/0.4
ZDY,12-4/0.4
ZDY,21-4/0.8
ZDY,21-4/0.8x2
working duty
A4
A4
A4
A4
Steel track recommended
P24
P24
P24 p38
p38
Power source
380V 50Hz
380V 50Hz
380V 50Hz
380V 50Hz
Crane Weight
Ground
Kg
3250
3550
4050
5350
3500
3850
4550
6150
4300
4750
5500
6900
6600
7500
8350
10650
cab
Kg
4050
4350
4850
6150
4300
4650
5350
6950
5100
5500
6300
7700
7400
8300
9150
11450
Max Wheel Load
KN
14
19
27
35
28
32
35
39
37/44
40/47
43/50
46/53
78
85
94
103
Basic Dimensions
H
mm
1020
1150
1320
1670
H2
550
595
700 900
650
700 800
1000
720
800 900 1100
900
1000
1100
1250
H
490
490
580 745
530
580 660
820
580
660 745 875
720
865
920
970
B
4400
4400
4600
4800
5200
B1
3300
3300
3500
3700
B2
1400
1400
1500
1600
B1
2000
2500
3000
2000
2500
3000
2000
2500
3000
2000
2500
3000
Feature&Advantages
1. Semi-Gantry Structure Design – Maximizing Space Utilization
The core advantage of the BMH electric hoist semi-gantry crane lies in its unique semi-gantry structure design. Compared to traditional full gantry cranes, this structure has the following significant advantages:
Saving Top Space: The semi-gantry design features outriggers at the bottom that run along ground tracks, while the top travels directly along the factory's load-bearing beams. This eliminates the need for a complete gantry structure, significantly reducing the overall height and weight of the machine.
High Adaptability:Particularly suitable for locations with height restrictions or where full gantry cranes cannot be installed, such as adding loading and unloading areas to the outside of existing factory buildings, enabling flexible layouts that utilize walls as tracks.
Simple Structure:The semi-gantry design simplifies the structure, facilitates installation, and reduces maintenance costs, making it an economical choice among light-duty lifting equipment.
Flexible Mobility:The traveling mechanism uses dual-wheel drive, providing a small turning radius and allowing free movement in confined spaces, making it particularly suitable for logistics parks, workshops, and other locations with limited space.
2. Compact and Lightweight Design
The BMH type electric hoist semi-gantry crane incorporates lightweight and compact design principles in its structural design:
Optimized Main Beam Structure: The main beam adopts an anti-torsion box-type or welded structure, resulting in low wheel pressure and light weight, effectively reducing the load requirements on the ground and building structure.
Integrated Hoist: Utilizing CD1, MD1, and other models of wire rope electric hoists as the lifting mechanism, the hoist and gantry structure are highly integrated, resulting in a simple overall appearance and small footprint.
Dedicated Reducer for Lower Crossbeam: The lower crossbeam employs a dedicated reducer design, allowing for a larger working space inside the crane, facilitating material handling and personnel operation.
Improved Space Utilization: The dimensions between the top of the trolley and the rails are minimized, reducing them by 20%~30% compared to traditional products, thus improving space utilization.
Comparison Dimensions: BMH Semi-Gantry Crane vs. Traditional Full-Gantry Crane
Overall Height: Lower
Structural Complexity: Simple vs. Complex
Installation Difficulty: Convenient vs. Relatively High
Suitable for Space-Confined Areas vs. Open Spaces
Manufacturing Cost: Economical vs. Relatively High
3. Highly Efficient and Reliable Operating Performance
The BMH electric hoist semi-gantry crane excels in operating performance:
High Operating Speed: The trolley travel speed can reach 20 meters per minute. The lifting mechanism is compact, the hook stroke is reasonable, and the working range is wide.
Three-in-One Drive Mechanism: Equipped with a three-in-one drive mechanism (motor + reducer + brake integrated design), the structure is compact and the transmission efficiency is high.
Selectable Lifting Speed: Lifting speeds of 4m/min, 6.3m/min, 8m/min, etc., are available in various specifications, allowing users to flexibly choose according to the characteristics of the goods and the work rhythm; a dual-speed lifting configuration (MD1 hoist) is optional, achieving fast and slow speed control, with slow speed used for precise positioning and fast speed used for routine handling.
Smooth Trolley Operation: The trolley operating speed is typically 20m/min, with smooth operation and accurate positioning.
4. Comprehensive Safety Protection System
The Weihua BMH electric hoist semi-gantry crane features comprehensive safety configurations:
Multiple Limit Protections: The hoisting mechanism is equipped with upper and lower limit switches to prevent hook over-winding or overshooting; the trolley and crane traveling mechanisms are equipped with travel limit switches to prevent over-travel.
Overload Protection: Equipped with an overload limiter, it monitors the lifting load in real time. When the load exceeds the rated lifting capacity, it automatically alarms and cuts off the hoisting circuit.
Wind Protection (Outdoor Type): For outdoor use, windproof facilities such as rail clamps and anchoring devices can be configured to ensure equipment safety in windy weather.
Electrical Safety Protection: Standard configuration includes phase loss protection, grounding protection, and heavy-duty aviation connectors. Electrical connections are well-sealed and adaptable to complex environments.
Anti-Tilting and Inclined Lifting Protection: Supports anti-tilting and inclined lifting protection functions to avoid safety accidents caused by improper operation.
5. Flexible Control Methods
The BMH electric hoist semi-gantry crane offers multiple control methods to meet diverse operational needs:
Ground Operation: Controlled via a handheld switch, simple and intuitive, suitable for conventional work scenarios.
Remote Control: Operated via a wireless remote control, allowing operators to work from the optimal viewing position, avoiding blind spots and improving operational safety and convenience.
Cabin Operation (Optional): For heavy-duty or high-frequency operations, a cab operation mode is available, providing better visibility and comfort.
6. Wide Adaptability Design
The BMH electric hoist semi-gantry crane is designed with adaptability to various working conditions in mind:
Wide Temperature Range Operation: Operates normally in ambient temperatures ranging from -20℃ to +40℃, suitable for most regions of my country.
Indoor and Outdoor Versatile: Can be installed in indoor workshops for material handling, and also used in open-air yards, docks, and other outdoor locations for loading and unloading operations.
Multiple Voltage Options: In addition to the standard 380V 50Hz power supply, electrical configurations with different voltages and frequencies can be customized to meet export requirements.
7. Economic Advantages
As a light-duty lifting device, the BMH electric hoist semi-gantry crane has significant economic advantages:
Low Procurement Costs: Simplified structure and light weight result in significantly lower manufacturing costs than full gantry cranes, making it an ideal choice for small and medium-sized enterprises.
Easy Installation Costs: Simple structure and high modularity lead to short on-site installation cycles and low labor costs.
Low Operating Energy Consumption: Lightweight design reduces drive power requirements, resulting in lower long-term electricity costs.
Low Maintenance Costs: Electric hoists use standard components, facilitating repair and replacement; the simple gantry structure minimizes daily maintenance workload.
Application
1. Machining Workshops
Machinery manufacturing and parts processing workshops are among the most widely used applications of BMH-type electric hoist semi-gantry cranes.
Typical Operations:
Loading and unloading of raw materials (steel, castings and forgings)
Transfer and handling of semi-finished products between processes
Finished parts unloading, packaging, and loading
Installation, maintenance, and hoisting of machine tools
Advantages:
Machining workshops typically have limited ceiling height and dense equipment, making traditional bridge cranes unsuitable due to building structure limitations. The BMH semi-gantry crane cleverly utilizes the workshop wall beams as tracks, achieving efficient material handling without occupying ceiling space, making it one of the best lifting solutions for machining workshops.
2. Warehouses, Yards, and Logistics Centers
Various warehouses, logistics parks, and yards require frequent loading, unloading, stacking, and transfer operations. The BMH-type electric hoist semi-gantry crane is an ideal supporting equipment for these scenarios.
Typical Operations:
Loading, unloading, and stacking of goods (pallets, boxes, bagged materials)
Inbound and outbound handling of heavy materials
Loading and unloading operations in truck beds
Application Advantages:
Warehouse areas often face space constraints and narrow aisles. The BMH semi-gantry crane, with its compact structure and small turning radius, can operate flexibly in confined spaces. Combined with remote control operation, operators can complete various loading and unloading operations from the optimal position, significantly improving warehouse operational efficiency.
Recommended Application Scenarios, Lifting Capacity, Span, and Key Configurations:
Machinery Workshops: 2~5t, 10~15m, Remote Control Operation, MD1 Dual-Speed Hoist
Warehouses and Yards: 3~10t, 12~18m, Ground Operation, Optional Windproof Device
Docks and Stations: 5~10t, 15~20m, Corrosion Protection, Windproof Configuration
Construction Sites: 3~5t, 10~15m, Lightweight and Flexible, Quick Assembly and Disassembly
3. Docks and Stations
Logistics nodes such as stations and docks require efficient and reliable loading and unloading equipment to complete cargo transfer operations. The BMH type electric hoist semi-gantry crane is widely used in this field.
Typical Operations:
Loading and unloading cargo from train carriages
Dock loading and unloading of cargo from ships
Container transfer operations
Application Advantages:
Docks and stations typically operate in complex environments with a fast pace. The BMH semi-gantry crane is easy to operate and highly efficient, capable of quickly completing various loading and unloading tasks. For outdoor operations, additional windproof devices can be configured to ensure operational safety in windy conditions.
4. Construction Sites
Construction sites, cement product yards, precast component factories, and similar locations require frequent hoisting of various building materials and components.
Typical Operations:
Hoisting of reinforcing bars, formwork, and scaffolding
Loading and unloading of precast components (floor slabs, wall panels)
Handling of bulk materials such as cement and sand
On-site transfer of small construction equipment
Advantages:
Construction sites often have limited and frequently changing space. The BMH type electric hoist semi-gantry crane has a simple structure, is easy to assemble and disassemble, and can be flexibly deployed according to the project schedule. For special sites where large cranes cannot access, modular designs can be used for rapid on-site assembly.
5. Power and Energy Engineering
Hydropower stations, substations, and energy project construction sites require frequent equipment installation and maintenance hoisting operations.
Typical Operations:
Installation of electrical equipment (transformers, switchgear)
Overhaul and hoisting of generating units
Installation of pipes and cable trays
Application Advantages:
Power plants and similar locations often have limited space and require high hoisting precision. The BMH type electric hoist semi-gantry crane, combined with the MD1 type dual-speed electric hoist, can achieve slow-speed, precise positioning, meeting the requirements for the installation of precision equipment.
6. Other Application Areas
In addition to the key areas mentioned above, the BMH type electric hoist semi-gantry crane is also widely applicable to the following scenarios:
Building materials markets: Loading, unloading, and stacking of building materials such as timber, steel, and stone
Cement product plants: Production flow and storage of precast components
Assembly workshops: Assembly operations of large machinery or structural components
Small factories: Daily handling of various materials
Company Strength
1. Company Overview and Industry Position
Henan Weihua Heavy Machinery Co., Ltd., founded in 1988, is a core holding subsidiary of Weihua Group. Headquartered at No. 18 Shanhai Avenue, Changyuan City, Henan Province, known as the "Capital of Lifting Machinery in China," the company boasts a registered capital of RMB 1.066 billion. It is a leading enterprise in China's crane manufacturing industry and one of the world's largest industrial crane manufacturers. As a national manufacturing single-item champion enterprise, Henan Weihua holds a significant position in the domestic and international lifting machinery industry.
2. Main Business and Product System
The company focuses on the research, development, manufacturing, and sales of bridge cranes, gantry cranes, electric hoists, and new intelligent lifting equipment. Product types cover multiple series including general-purpose bridge cranes, European-style cranes, metallurgical cranes, explosion-proof cranes, and port gantry cranes, meeting the complex operational needs of various industries. With its modular, lightweight, and intelligent design concepts, Henan Weihua's products are at the forefront of the industry in terms of structural performance, safety, reliability, and service life.
3. Application Areas and Market Coverage
Henan Weihua's products are widely used in many key sectors of the national economy, including machinery manufacturing, metallurgy, power energy, port logistics, railway transportation, petrochemicals, and construction engineering. The company's products not only sell well in all provinces, municipalities, and autonomous regions of China, but are also exported to more than 100 countries and regions in Southeast Asia, the Middle East, Africa, Europe, and the Americas, serving numerous Fortune 500 companies and key national engineering projects, earning a good international reputation.
4. Technology R&D and Quality Assurance
The company highly values technological innovation and has established several high-end R&D platforms, including a national-level enterprise technology center, a postdoctoral research station, and the Henan Provincial Lifting Machinery Engineering Technology Research Center. In recent years, Henan Weihua has actively promoted intelligent and digital manufacturing transformation, accumulating over a thousand national authorized patents and participating in the formulation of multiple national and industry standards. In terms of quality management, the company has passed ISO9001, ISO14001, and ISO45001 international system certifications and has successively won numerous honors such as "China Famous Brand Product," "National Quality Benchmark," and "National Technological Innovation Demonstration Enterprise," establishing a comprehensive quality control system from raw materials to finished products.
