LH hoist double girder crane

Technical Configuration

The LH hoist double girder crane is available in a standard capacity range of 1 ton to 50 tons, with spans from 7 meters to 31.5 meters and lifting heights from 6 meters to 30 meters. The bridge structure utilizes a welded box girder design, with the hoist trolley running on the top flange of the main girders, providing stable load distribution and smooth travel. The crane is classified for light to intermediate duty cycles (A3-A5 per GB/T crane standards) and operates in ambient temperatures from -25°C to 40°C. The electric hoist, integrated with the trolley, features a dual-speed motor for precise load control, with optional variable frequency drives for enhanced speed regulation. Electrical components can be specified with Schneider or Siemens contactors, relays, and control panels, ensuring compatibility with international electrical standards. Control modes include pendant handle control, wireless remote control, or a cabin cockpit, depending on operational requirements. Standard safety devices include overload limiters, emergency stop buttons, travel limit switches for both cross-travel and long-travel motions, and buffer stops at rail ends. Optional features include anti-collision systems, soft-start motors, IP55-rated electrical enclosures for dusty environments, and corrosion-resistant paint finishes for humid or coastal installations. The crane can also be customized as a non-standard LH type electric hoist overhead crane to accommodate specific span, height, or duty cycle requirements, with engineering support for modifications to the runway beam interface or lifting attachments.

This crane is deployed across diverse industrial sectors. In steel mills and metallurgical plants, it handles raw material transfer, mold maintenance, and finished product loading in auxiliary workshops. Port and logistics facilities use it for container stuffing, cargo sorting, and warehouse racking operations. Manufacturing workshops in the automotive and heavy machinery sectors rely on it for assembly line component positioning and machine tool maintenance. The food and textile industries benefit from its clean, low-headroom profile, which maximizes usable floor space in production areas. Power stations and chemical processing plants utilize it for turbine maintenance, pump replacement, and filter handling, provided the environment is free of flammable, explosive, or corrosive media. The crane’s light weight and small wheel pressure also make it suitable for installation on existing building structures with limited load-bearing capacity, avoiding costly structural reinforcements.

Chunhua Crane offers direct factory pricing, typically 30 to 50 percent below equivalent European-branded cranes, without compromising on core engineering quality. All cranes are manufactured in accordance with GB/T 3811 and GB/T 14405 standards, with optional certification to FEM, DIN, or CMAA specifications upon request. CE certification and CCC certification are available for export to regulated markets. The company provides custom engineering services for non-standard configurations, including special spans, higher lifting heights, or integrated control systems. A dedicated export sales engineer responds to inquiries with a preliminary quote and general arrangement CAD drawing within four hours of receiving load specifications and site dimensions. With established sea freight logistics to over 60 countries, Chunhua ensures competitive shipping rates and reliable delivery timelines.

The ordering process is straightforward and designed for international buyers. Submit an inquiry via WhatsApp or email with the required capacity, span, lifting height, and control preference. A sales engineer provides a formal quotation and CAD drawing within four hours. Upon acceptance, a 30 percent T/T deposit initiates production, which takes 30 to 45 days depending on customization complexity. The balance is due before sea freight shipment, with the buyer responsible for import customs clearance and local transport. Optional on-site installation and commissioning services are available at an additional cost, coordinated through Chunhua’s overseas service partners. All documentation, including test certificates, wiring diagrams, and maintenance manuals, is provided in English.