Single-girder Bridge Cranes: the "golden backbone" of smart workshops, driving the efficiency revolution in the era of intelligent manufacturing
In a modern, 12-meter-high smart workshop, three bright yellow single-girder overhead cranes stretch parallel to each other like a "golden backbone." Their hooks hover precisely, guided by sensors, while cables are neatly arranged along the sides of the main beams. In the distance, automated guided vehicles (AGVs) await the cranes' completion of their aerial material transfers. This vision of human-machine collaboration embodies the new role of single-girder overhead cranes in the Industry 4.0 era: their evolution from heavy-lifters to intelligent production hubs.
Technical Parameters:
| Lifting Capacity | 1 t, 2 t, 3 t, 5 t, 10 t, 16 t, 20 t, 32 t (customizable up to 50t) |
| Span | 7.5m, 10.5m, 13.5m, 16.5m, 19.5m, 22.5m, 30m (custom span ≤ 40m) |
| Lifting Speed | No-load 0.5-12m/min, full-load 0.2-8m/min (frequency control) |
| Travel Speed | 0.5-45m/min (main beam running speed along the track) |
| work Duty | A 3 (light), A 4 (medium), A 5 (heavy), A 6 (extra heavy) |
A philosophy of symbiosis between spatial aesthetics and efficiency.
The design wisdom of single-girder overhead cranes is first reflected in the "art of subtraction in space utilization":
The box girder revolution: The bright yellow main girder in the image is forged using a "box section + high-strength steel" construction. Its deadweight is 20% lighter than traditional I-beams, while its bending strength is 30% higher (for a 10t crane, for example, the main girder weighs only 4.2 tons, yet can stably support a 10-ton load).
Track-mounted installation: Mounted directly to factory columns via brackets or trusses (as shown in the gray steel beam in the image), eliminating the need for additional load-bearing platforms and freeing up over 20% of vertical space in the workshop. (After implementation in a new energy battery workshop, the height of the three-story warehouse increased by 1.5 meters and storage capacity by 40%).
Multi-machine parallel layout: A standardized main girder and modular electric hoist design allow multiple overhead cranes to operate in parallel within the same span (as shown in the image, the three overhead cranes are only 3 meters apart). meters, yet can independently complete lifting tasks at different workstations).
Multi-Scenario Adaptability: A Smart Manufacturing Connector Beyond the Workshop
The modular nature of single-girder overhead cranes makes them a universal solution for intelligent upgrades across multiple industries:
New Energy: Lifting silicon wafer boxes (±2mm accuracy) in photovoltaic module workshops and 80-ton nacelles (22.5m span) in wind turbine assembly workshops;
Precision Manufacturing: Lifting wafer cassettes in Class 1000 semiconductor cleanrooms, stainless steel construction and dust-free coating meet Class 10 cleanroom requirements;
Automotive: Lifting vehicle body frames (6-10 tons) in welding workshops, integrating with robotic production lines for instant docking.