Introduction
The double-arm jib crane consists of a shared column, upper jib arm, lower jib arm, two sets of chain electric hoists and base. The two jib arms are arranged in upper and lower layers on the same column, each achieving 360° rotation via independent slewing bearings without interference. Each jib arm is equipped with an independent electric hoist and control system, serving two workstations simultaneously or operating separately. The product adopts column-type fixed installation with compact structure and small footprint; the double-arm layered design effectively utilizes vertical space, doubling the working coverage without increasing floor area. Standard equipped with overload protection, upper/lower limit, rotation limit and other safety devices, with simple operation and high efficiency, it is an ideal light-duty lifting device for dual-station assembly lines, opposite machine tool areas and assembly inspection lines.
Application
Automotive industry
Medical industry
Machinery industry
Amusement facilities industry
Clothing industry / Apparel industry
Our Advantage
Dual independent arms for simultaneous dual-station operation: Two jib arms each independently rotate 360°, with independent electric hoists and control systems, serving two workstations simultaneously; one device delivers the efficiency of two jib cranes, doubling operation efficiency and greatly reducing equipment investment.
Layered arrangement with high space utilization: Two arms installed in upper and lower layers on the same column, fully utilizing vertical space; footprint only 1.2 times that of a single-arm type, yet covering twice the working area, especially suitable for modern workshops with tight space and dense workstations.
Independent rotation without interference: Each jib arm connects to the column via an independent slewing bearing, rotating without friction or mutual interference, capable of cross-operation at any angle, with flexible operation, meeting complex lifting needs of dual workstations.
Compact structure with easy installation: Sharing one column and base, overall structure is compact, fixed via anchor bolts without complex foundation; both arms assembled and debugged before delivery, with fast on-site installation, low renovation cost, adapting to various workshop environments.
Independent control with reliable safety: Each hoist equipped with independent control system and safety protection devices, operable separately or in linkage; standard overload protection, upper/lower limit, rotation limit provide double safety guarantee, ensuring personnel and equipment safety during simultaneous dual-arm operation.
Technical Specifications
| Parameter | 0.25t×2 | 0.5t×2 | 1t×2 | 2t×2 |
| Rated Capacity (per arm) | 0.25t | 0.5t | 1t | 2t |
| Arm Length (per arm) | 2~4m | 2~5m | 3~5m | 3~5m |
| Lifting Height | 3~5m | 3~6m | 3~6m | 3~5m |
| Lifting Speed (N/S) | 8/4 | 8/4 | 8/4 | 5/2.5 |
| Rotation Mode | manual | Manual / Electric (Optional) | Manual / Electric (Optional) | electric |
| Rotation Angle | 360°（Independent operation for each jib） | 360°（Independent operation for each jib） | 360°（Independent operation for each jib） | 360°（Independent operation for each jib） |
| Hoist | chain electric hoist | chain electric hoist | chain electric hoist | chain electric hoist |
| Hoisting Motor (per arm) | 0.4kW | 0.6kW | 1.0kW | 1.5kW |
| Rotation Motor (per arm) | — | 0.2kW（electric） | 0.2kW | 0.3kW |
| Column Diameter | Φ159mm | Φ219mm | Φ273mm | Φ325mm |
| Installation | column (anchor bolts) | column (anchor bolts) | column (anchor bolts) | column (anchor bolts) |
| Weight | ~300kg | ~500kg | ~800kg | ~1300kg |
| Working Class | M3 | M3 | M3 | M3 |
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