The "double-powered good partner" in the factory - double electric hoist single-girder bridge crane
Entering the spacious and bright industrial plant, several bright yellow single-girder overhead cranes with dual electric hoists stand out, acting like a "power link" overhead, providing efficient kinetic energy for lifting heavy workpieces.
The dual electric hoist design is an ingenious way to improve production efficiency: a single hoist can operate independently, flexibly handling small and medium-sized workpieces; or, the two hoists can work together to easily lift heavy and large industrial components. Large metal modules in the workshop can be precisely lifted to their designated workstations using the dual hoists, eliminating the time-consuming, repetitive adjustments required with traditional single hoists and streamlining the production process.
Technical Parameters:
| Lifting Capacity | Rated lifting capacity of a single electric hoist: 1t - 10t (each hoist can independently load); Rated lifting capacity of two hoists: 2t - 20t (total load when two hoists operate synchronously, e.g., two 5t hoists can reach a total load of 10t) |
| Span | 7.5m - 31.5m (adaptable to different factory widths, can be customized as needed) |
| Work Duty | Typically A3 - A5 (corresponding to light to medium duty systems, suitable for conventional industrial lifting frequencies and load intensities) |
| Lifting Speed | Single hoist lifting speed is about 8m/min (optional "fast and slow dual speed", slow speed is about 2m/min, suitable for delicate lifting); dual hoists can be lifted synchronously with synchronous speed adjustment to ensure smooth lifting |
| Travel Speed | Trolley (along the longitudinal track of the workshop): approximately 20m/min; Trolley (electric hoist along the transverse direction of the single beam): approximately 25m/min (speed can be customized) |
| Lifting Height | Distance from track surface to hook: 6m - 30m (can be customized according to factory height) |
| Control Characteristics | Supports single hoist independent control or dual hoist synchronous/coordinated control, achieving precise and synchronous lifting operations through the electrical system |
Core advamtages:
1. Space and Cost: Balancing Economy and Application Adaptability
As a lightweight, ultra-low-headroom lifting device, the electric hoist is positioned on one side of the main beam, maximizing hook access space and effectively utilizing overhead space, directly reducing height requirements and construction costs. The compact design and size of the hoist make it particularly suitable for low-headroom workshops, reducing space requirements and facilitating flexible factory layouts.
2. Dual Hoist Collaboration: Double Upgrades in Efficiency and Flexibility
The two electric hoists offer dual capabilities: **independent operation + collaborative linkage**.
When operating independently, they can each lift small and medium-sized workpieces, meeting the needs of multiple workstations simultaneously.
When working collaboratively, they can easily lift heavy and long materials (such as bridge steel components and industrial shafts), eliminating the time-consuming and prone-to-tilt lifting issues associated with traditional single-hoist lifting. They can even coordinate and perform complex maneuvers like flipping large workpieces, significantly improving operational efficiency. Furthermore, the price of equipment with dual hoists is only slightly higher than that of standard single-hoist, single-beam cranes, offering the distinct advantages of "high cost-effectiveness and multifunctionality."
III. Structure and Operation: Ensuring Stability and Reliability
Solid and Durable Structure: The bridge main beam is welded from hot-rolled coils to form a "solid beam," offering strong rigidity and excellent deformation resistance (main beam deflection on some models is ≤ 1/1000 of the span, far exceeding the industry standard of 1/700). The trolley features a large wheelbase, light weight, and low wheel pressure, making it more user-friendly for load-bearing structures such as factory rails.
Stable and Low-Noise Operation: Equipped with a three-in-one operating motor (or H-class insulated drive motor), the drive system is tightly assembled, resulting in low noise and no impact during operation. Some models utilize variable frequency speed regulation technology, ensuring smoother lifting and operation, preventing material sway and further ensuring operational safety and precision. IV. Safety and Adaptability: Covering Multi-Scenario Industrial Needs
Comprehensive Safety Protection: Equipped with multiple safety features such as overload protection and limiters, and utilizing high-temperature-resistant cables for stable power supply, this machine significantly reduces operational risks. It covers operating levels A3 to A5, adapting to light to medium lifting frequencies and load intensities.
Wide Adaptability: Operating in a temperature range of -25°C to 40°C, it can be used in diverse scenarios, including industrial and mining enterprises, metallurgical workshops, machining centers, warehouses, and material yards, for operations such as transfer, assembly, maintenance, and loading and unloading.
V. Operation and Energy Saving: Balancing Convenience and Economy
Flexible and Convenient Operation: Supporting multiple modes of operation, including ground handle operation, remote control operation, and combined ground and remote control operation, it is easy for workers to learn and requires minimal training.
Energy-Saving, High-Efficiency, and Economical: Select models feature integrated transmission technology or a variable frequency drive system, resulting in high energy efficiency and effectively reducing long-term energy costs. The machine's simple structure makes installation and maintenance easy, further reducing ongoing operational costs.The single-girder structure is simple and robust, fully utilizing the overhead space. Even within a compact workshop layout, its flexible trajectory allows it to navigate between production areas. From machining to steel structure fabrication to heavy equipment assembly, its stable lifting performance makes it an essential lifting aid on the jobsite, providing a solid "air force" for efficient factory production.