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.

• High rigidity double‑girder structure, minimal deflection and vibration for continuous heavy‑duty operation
• Flexible load capacity, optional single or dual trolley for long and irregular workpieces handling
• Full set of safety protections including overload limiter, travel limit switches, anti‑collision buffer and dual emergency brakes
• VFD variable frequency drive, smooth start‑stop, low load swing and accurate positioning
• High‑strength steel and premium welding workmanship, excellent anti‑wear and anti‑corrosion performance
• Energy‑efficient design, standardized modular components, easy inspection and low maintenance cost
• Customizable span, lifting height and travelling speed to match different workshop layouts
• Dual control options: operator cabin and wireless remote control for convenient operation
• Support intelligent retrofit with remote monitoring, fault self‑diagnosis for industrial IoT connection

• Machinery manufacturing workshops: hoisting and assembling large mechanical parts
• Steel & metallurgy plants: handling steel plates, coils and bulk raw materials
• Foundry workshops: transporting castings and heavy forgings
• Power and new energy factories: installation and maintenance of heavy equipment
• Heavy‑duty warehouses: frequent turnover of heavy bulk goods
• Heavy equipment factories: moving molds and oversized workpieces
• Heavy processing workshops: workpiece turnover and precise positioning
• Indoor heavy‑load production lines for continuous high‑intensity lifting tasks

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.

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 handling equipment, the registered capital of the group company is 318 million yuan, the registered capital of the subsidiary is 12.8 million yuan, the group has more than 560 employees, and the production and processing workshop area is 120,000 square meters, including 35 middle and senior managers and 30 senior engineers. There are 40 engineers and 116 engineering and technical personnel. There is a handling equipment research institution equipped with advanced computer-aided design system. The company has nine functional departments: design, production, quality inspection, and safety. There are electrical appliances, riveting, casting, forging, assembly, heat treatment, machining, maintenance and other workshops, with an annual production of 10,000 tons of various types of lifting equipment. There are six offices and 20 sales and service agencies across the country covering major power stations across the country. Industrial and mining enterprises, port terminals and other areas. The company has more than 100 sets (pieces) of various testing instruments and measuring instruments with good performance and effective calibration. Since the establishment of the company, the output value, profits and taxes have increased significantly. The products are sold in more than 30 provinces and cities across the country, and exported to Russia, France, Poland, Dozens of countries including the Philippines, Vietnam, Thailand, Indonesia, Bangladesh, Laos, Bolivia, Africa, South America, Europe, Central and North America, etc., have been highly praised by users at home and abroad.

Our company manufactures all kinds of lifting and handling equipment. The product categories include: European cranes, tire gantry cranes, yacht handling machines (yacht cranes), container gantry cranes, shore bridge cranes, portal cranes, AGV smart cars , RGV heavy trolley, battery track platform car, trackless platform car, trackless truck, ladle car, over straddle car, track turntable, container spreader, wireless remote control grab, hydraulic grab, cantilever crane, gantry crane and other non-standard large-scale handling Equipment, special equipment design, manufacture, installation, transformation, maintenance, etc. 60 series, nearly 6000 kinds of products, obtained relevant manufacturing qualifications, and passed ISO9001 quality system certification, ISO14001, ISO45001 and other system certification, national quality inspection and national quality supervision and quarantine General Administration, issued the A-level "People's Republic of China Special Equipment Manufacturing License", A-level "People's Republic of China Special Equipment Installation, Retrofit and Maintenance License" and other certificates.