Mairuite (Shandong) Heavy Industry Machinery Co., Ltd.
| Trolley traveling speed | 20-30m/min |
| Working environment temperature | ‑20℃ ~ +45℃ |
| Inspection certificate | Factory test report |
| VFD control system | Optional |
| Delivery Time | 25-50 Woiking Days |
| Overload protection | Built‑in |
| Paint thickness | 80‑120μm |
| Payment Terms | L/C, T/T, D/P |
| Cabin type | Closed / Open type optional |
| Wheel material | Forged alloy steel |
| Installation guidance | Video guidance support |
| Supply Ability | 20Sets/Month |
| Secondary hook configuration | Available |
| Emergency stop function | Full‑range protection |
| Main girder structure | Box welded structure |
| Packaging Details | Large-sized double-layer PVC film packaging, small-sized non-sterilization wooden box packaging |
| Rail specification | Customized according to load |
| Anti‑collision device | Equipped |
| Model Number | QD |
| Certification | CE |
| Brand Name | MRT |
| Place of Origin | China |
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Product Specification
| Trolley traveling speed | 20-30m/min | Working environment temperature | ‑20℃ ~ +45℃ |
| Inspection certificate | Factory test report | VFD control system | Optional |
| Delivery Time | 25-50 Woiking Days | Overload protection | Built‑in |
| Paint thickness | 80‑120μm | Payment Terms | L/C, T/T, D/P |
| Cabin type | Closed / Open type optional | Wheel material | Forged alloy steel |
| Installation guidance | Video guidance support | Supply Ability | 20Sets/Month |
| Secondary hook configuration | Available | Emergency stop function | Full‑range protection |
| Main girder structure | Box welded structure | Packaging Details | Large-sized double-layer PVC film packaging, small-sized non-sterilization wooden box packaging |
| Rail specification | Customized according to load | Anti‑collision device | Equipped |
| Model Number | QD | Certification | CE |
| Brand Name | MRT | Place of Origin | China |
Double girder overhead crane is high‑performance heavy‑duty lifting equipment. Adopting rigid double box‑girder structure, it features small deflection and stable running. Multiple control ways and safety devices are equipped. Span, lifting height and working class can be customized. It supports OEM and non‑standard design, widely applied in workshops, steel mills, warehouses and other industrial sites for heavy goods lifting and handling.
| Item | Specification |
| Rated Lifting Capacity | 5‑50t |
| Span | 10.5‑31.5m |
| Lifting Height | 6‑24m |
| Working Duty | A3‑A6 |
| Lifting Speed | 3.5‑13m/min |
| Trolley Travel Speed | 20‑45m/min |
| Crane Travel Speed | 30‑75m/min |
| Control Method | Pendant / Remote / Cabin |
| Power | 380V 50Hz 3‑Phase |
Contact us and send your requirements of load, size and working environment, we will provide the most suitable transportation solution and formal quotation for you.
Company Details
Business Type:
Manufacturer,Exporter,Seller,Other
Year Established:
2005
Employee Number:
500~1000
Ecer Certification：
Site Member
Merit (Shandong) Heavy Industry Machinery Co., Ltd. is a subsidiary of Shandong Longhui Group. It is located at the foot of the world-famous Mount Tai. Yangliu Town, the hometown of Yanghu, a famous general in the Western Jin Dynasty, is the hometown of cranes. A professional manufacturer of heavy h... Merit (Shandong) Heavy Industry Machinery Co., Ltd. is a subsidiary of Shandong Longhui Group. It is located at the foot of the world-famous Mount Tai. Yangliu Town, the hometown of Yanghu, a famous general in the Western Jin Dynasty, is the hometown of cranes. A professional manufacturer of heavy h...
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