Double-Girder Crane Trolley with Hoisting Mechanism

Double-Girder Crane Trolley with Hoisting Mechanism

The trolley of a double-girder overhead crane is a critical traveling unit that moves along

the two main girders. It carries the hoisting mechanism, which performs vertical lifting and

lowering of the load.

Main Components of the Hoisting Mechanism:

• Hoist motor – Provides power for lifting operations

• Gearbox / Reducer – Reduces motor speed and increases torque

• Drum – Winds the wire rope for lifting

• Wire rope – Supports the load and transmits lifting force

• Hook block – Connects to the load via hooks or lifting attachments

• Brake system – Ensures safe stopping and load holding

• Overload limiter – Prevents overloading for safety

Key Features:

• Suitable for medium to heavy-duty applications (typical capacity: 5t – 500t)

• Stable and smooth lifting with precise speed control

• Compact trolley design for low headroom and better hook approach

• Fail-safe braking and double brake option for high safety requirements

• Optional features: auxiliary hoist, variable frequency drive (VFD), anti-sway control, remote operation

Typical Applications:

• Steel mills, foundries, heavy machinery assembly

• Warehousing, logistics centers, industrial workshops

• High-frequency or high-capacity lifting operations

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Huagong, established in June 2008 in Changyuan City, Henan Province, is a leading manufacturer of lifting accessories with a registered capital of 56 million yuan. The company covers an area of over 75,000 square meters and employs more than 500 staff. Huagong specializes in various cranes and their components, including wheels, reels, and grabs, with annual outputs of 30,000 sets, 10,000 sets, and 5,000 sets, respectively. Its products utilize advanced European technology and are certified with ISO9001, ISO14001, CE,SGSand OHSAS18001. Huagong has been serving the international market for 10 years, with its cranes and accessories sold directly to over 20 countries, including those in Southeast Asia, the Middle East, and Russia. Huagong's international goal is to become the world's most cost-effective crane supplier. The company has established strong partnerships with numerous steel and non-ferrous metal enterprises and has been recognized multiple times as an excellent supplier. Huagong's business philosophy is to provide one-stop service while maintaining high-quality standards.