The hoisting mechanism of the electromagnetic bridge crane adopts the classical parallel axis layout, the trolley running mechanism adopts the low speed shaft centralized drive structure, and the cart running adopts the structure of independent drive on both sides. It can be divided into hook type and hanging beam type according to the picking form; According to the layout of hanging beam, it can be divided into parallel main beam type and vertical main beam type; According to the rotation mode, it can be divided into upper rotation type and lower rotation type; According to the operation mode, it can be divided into ground operation, air operation and remote control operation.
Type 1: Parallel Beam with Main Beam Type (Double Beam Structure)
Structural Features: Two main beams are arranged parallel, and the electromagnetic lifting beam is installed horizontally beneath the main beam.
Advantages: Strong load-bearing capacity, high stability, suitable for heavy lifting requirements (such as 15t~40t) and large spans (≥16m). Commonly used in steel mills and heavy machinery manufacturing industries.
Typical Applications: Lifting heavy magnetic materials, such as steel plates, steel coils, large castings, etc.
Type 2: Vertical Hanging Beam Relative to Main Beam Type (Double Beam Structure)
Structural Features: The electromagnetic lifting beam and electric trolley are perpendicular to the main beam, creating a compact overall structure.
Advantages: Space-saving design, suitable for low-ceiling factories or short spans (≤12m), with high flexibility.
Type 3: Upper Rotating Beam Electromagnetic Bridge Crane
Structural Features: The lifting beam is mounted above the main beam and can rotate within the horizontal plane. This design allows the bridge crane to transport materials across a larger area. By rotating the lifting beam, more complex material handling tasks can be completed, greatly enhancing operational flexibility.
Multi-Angle Material Handling: Suitable for scenarios requiring material handling from multiple angles, such as transporting or assembling complex-shaped workpieces.
Type 4: Lower Rotating Beam Electromagnetic Bridge Crane
Structural Features: The lifting beam is mounted below the main beam and can rotate within the horizontal plane. Similar to the upper rotating beam design, but typically more suitable for environments with lower clearance.
Applications: This design is especially suitable for areas with limited headroom, ensuring effective operation within limited height. For example, in basements, interior factory spaces, and other areas with low clearance, the lower rotating beam design maximizes the use of limited space for material handling.
In steel mills and rolling mills, the electromagnetic beam bridge crane effectively handles metal materials such as steel plates and billets. The electromagnetic suspension beam can securely attract metal materials of various shapes, improving operational efficiency and reducing manual intervention.
Used in machinery manufacturing workshops, it handles and assembles large metal components such as machine tool beds and engine parts. Its precise control capabilities ensure the safe handling and accurate positioning of complex workpieces.
During the automobile manufacturing process, it handles heavy metal components such as car body parts and engines. The design of the electromagnetic suspension beam enhances the safety and efficiency of the handling process while reducing the risk of damaging sensitive components.
In scrap metal recycling stations, the crane is used to sort and transport scrap iron, scrap steel, and other metal waste. The electromagnetic suspension beam can quickly attract and transport large amounts of scrap metal, significantly improving processing efficiency and safety.
The electromagnetic beam bridge crane is equipped with powerful electromagnets that can securely attract metal materials of various shapes and sizes, whether it is steel plates, billets, or other heavy metal components. This method of adsorption not only improves handling efficiency but also reduces manual intervention, ensuring safety and stability.
It adopts an advanced control system, including a variable frequency speed control system and a PLC (Programmable Logic Controller), supporting fine adjustments to ensure precise positioning and safe lifting in confined spaces. The wireless remote control and cabin operation modes provide greater flexibility to accommodate different operational needs.
The electromagnetic beam can be adjusted according to different operational requirements, such as changing the number, position, or magnetic field strength of the electromagnets. The up-and-down rotating beam design offers greater operational flexibility, allowing the bridge crane to handle a wider range of materials and adapt to complex workpiece shapes and sizes.
| Electromagnetic Overhead Crane With Carrier-beam | ||||||||||||||||||||||
| Capacity（ton） | 15 | 20 | 32 | 20+20 | ||||||||||||||||||
| Span (m) | 22.5 | 25.5 | 28.5 | 31.5 | 34.5 | 22.5 | 25.5 | 28.5 | 31.5 | 34.5 | 22.5 | 25.5 | 28.5 | 31.5 | 34.5 | 22.5 | 25.5 | 28.5 | 31.5 | 34.5 | ||
| Lifting Height (m) | 16 | 16 | 16 | 16 | ||||||||||||||||||
| Working Duty | A6 | A6 | A6 | A6 | ||||||||||||||||||
| Speed | Lifting Speed | m/min | 13.2 | 12.6 | 12.5 | 11.7 | ||||||||||||||||
| Trolley Travelling Speed | 36.7 | 36.2 | 37 | 37.5 | ||||||||||||||||||
| Crane Travelling Speed | 101.4 | 89 | 87.3 | 87.3 | ||||||||||||||||||
| Max. Wheel Load (Kn) | 175 | 190 | 203 | 215 | 230 | 215 | 228 | 240 | 249 | 259 | 305 | 322 | 332 | 345 | 357 | 358 | 375 | 388 | 405 | 425 | ||
| Total Power | 63 | 71 | 111.3 | 128.5 | ||||||||||||||||||
| Recommend Rail Model | 43kg/m | 43kg/m | 43kg/m | QU100 | ||||||||||||||||||
| Note : the working duty can be designed A6 or A7. | ||||||||||||||||||||||
1. Industry Position
Founded in 2006, Dafang Heavy Machinery covers an area of 1,580 acres and employs over 2,600 people. With an annual sales revenue of 3.566 billion RMB, the company focuses on two main business sectors: lifting machinery and steel structures. Major products include single and double girder bridge and gantry cranes, electric hoists, steel structure bridges, prefabricated buildings, and industrial plants. Dafang serves critical sectors such as military industry, aerospace, nuclear power, offshore engineering, metallurgy, and mining. Its products are exported to over 100 countries and regions, including the United States, Russia, and Southeast Asia.
Annually, Dafang manufactures 30,000 single-girder cranes, more than 12,000 double-girder and gantry cranes, and 30,000 electric hoists. Based on production scale, sales volume, and brand recognition, the company ranks among the top three in China’s crane industry.
2. Core Technologies
Dafang’s R&D team consists of over 260 members, including 104 with senior or intermediate engineering qualifications. The company invests 3.8% of its annual sales into technology development. It has obtained 12 international invention patents, 50 national invention patents, 415 utility model patents, and achieved 43 scientific and technological milestones. Dafang was the first in the industry to adopt anti-sway and automatic positioning technologies.
In 2016, Dafang became the first enterprise in Henan Province to implement smart crane applications and to introduce remote monitoring technology. The company also developed the multifunctional brewing crane, filling a domestic market gap. In 2021, Dafang was the first in the industry to be certified for unmanned intelligent cranes. In 2022, it undertook a project for a tower crane at a commercial satellite launch site.
3. Manufacturing Capability
Dafang Heavy Machinery is equipped with advanced in-house designed manufacturing equipment, including 1,500-ton press grooving machines, extrusion machines, and roller machines. The company has established leading domestic workshops, including an electrical assembly line, steel pre-processing line, paint finishing line, and China’s first practical single-girder lean production line. Precision machinery includes imported German NILES CNC gear grinding machines and Japanese MAZAK machining centers.
Dafang strictly follows refined manufacturing processes, adhering to the principle of “doing it right the first time, zero defects.” This commitment to quality is deeply ingrained in every employee, ensuring that every product delivered meets the highest standards.
4. Service Assurance
Dafang upholds a “comprehensive, high-quality” service standard, providing users with fast, attentive, and thorough one-stop services. With 24/7 online support, choosing Dafang means complete peace of mind. Just tell us what you need—we’ll take care of the rest.
The electromagnetic beam bridge crane can handle various metal materials, particularly suitable for heavy metals like steel, aluminum, and copper. The electromagnetic adsorption system firmly attracts steel plates, billets, and other metal materials.
The electromagnetic beam bridge crane is equipped with multiple safety features, including overload protection, limit switches, and a wireless remote control operation system, ensuring safety during operation.
The electromagnetic beam bridge crane is equipped with multiple safety features, including overload protection, limit switches, and a wireless remote control operation system, ensuring safety during operation.
The electromagnetic beam bridge crane is designed for easy maintenance, with the electromagnetic beam and key components easily accessible for repairs. The maintenance cycle is short, reducing operational costs.
