QJ Series Gearbox for Crane Use01
QJ Series Gearbox for Crane Use02
QJ Series Gearbox for Crane Use03
QJ Series Gearbox for Crane Use04

QJ Series Gearbox for Crane Use

Applied in the lifting, driving, slewing, and boom extension mechanisms of cranes
Center Distance: 140, 170, 200, 236, 280, 335, 400, 450, 500, 560, 630, 710, 800, 900, 1000
Low-Speed Shaft Types: P-Type (Flat Key Shaft Extension), C-Type (Gear Shaft Extension), H-Type (Spline Shaft Extension)
Categories: Gearboxes
Description
Features
Applications
About Weihua
Description:

The QJ series gearbox is commonly used in cranes, particularly in overhead cranes (EOT cranes), as part of their hoisting mechanisms. These gearboxes are designed to effectively reduce the motor's speed and increase its torque, which is crucial for lifting and controlling heavy loads. 


Process Map

 

Features:
1. Compact and Lightweight
QJ series gearboxes are designed to be compact and lightweight, minimizing the overall size and weight of the crane;
2. High Efficiency
The design of the gearboxes is optimized for high efficiency, meaning less energy is lost during operation;
3. Low Noise and Vibration
Crane gearboxes are designed to operate quietly and with minimal vibration, contributing to a safer and more comfortable working environment;
4. High Transmission Rate
These gearboxes achieve high transmission rates, ensuring smooth and efficient power transfer;
5. Durability and Reliability
Crane gearboxes are built with durable materials and rigorous quality control to ensure long-lasting performance and reliability. 
Applications:

Weihua crane parts can be applied to various industries such as industrial cranes, construction machinery, mining, metallurgy, chemical industry, aerospace, military and marine. These parts play a key role in lifting operations and can provide strong functions and reliability in various environments.

application
About Weihua:

Weihua Heavy Machinery Co., Ltd. was founded in 1988. It is a large-scale equipment manufacturing enterprise mainly engaged in the development of bridge and gantry cranes, port machinery, electric hoists, reducers, bulk material conveying equipment, crane parts and other products.

Weihua has won more than 500 honorary titles such as "National Technology Innovation Demonstration Enterprise", "National Torch Program Key High-tech Enterprise", "National Certified Enterprise Technology Center", "National Quality Benchmark", "National Green Factory", and "National Industrial Design Center".

Weihua has 10 series and more than 200 categories of crane production and manufacturing qualifications. The leading products are widely used in machinery, metallurgy, mining, electricity, railways, ports, petroleum, chemical and other industries, serving national key projects such as West-East Gas Transmission, South-to-North Water Diversion, Olympic Projects, Hangzhou Bay Cross-sea Bridge, and thousands of large enterprises such as China Coal, China Shenhua, Sinopec, China Petroleum, Baowu Steel, etc., and are exported to more than 170 countries and regions such as Thailand, Malaysia, and Australia.

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Weihua Group is a large-scale equipment manufacturer specializing in the R&D of overhead cranes, gantry cranes, port machinery, electric hoists, reducers, bulk material conveying equipment and so on.
No. 18 Shanhai Avenue, Changyuan City, Henan Province, China
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