heavy-duty planetary gearbox for mining machinery

Brief Description :

Our heavy-duty planetary gearbox for mining machinery is specifically engineered to withstand the harsh, high-load operating conditions of the mining industry. Designed with a robust planetary transmission structure, it delivers exceptional torque output, high transmission efficiency, and reliable performance, making it an indispensable core component for various mining equipment. Whether it’s crushers, conveyors, roadheaders, or hoists, this gearbox ensures stable power transmission, effectively improving the operational efficiency and service life of your mining machinery.

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Core Advantages for Mining Applications

● Super High Torque Bearing Capacity: Adopting multi-planet gear meshing design, the torque is evenly distributed among multiple planetary gears, greatly enhancing the load-bearing capacity. Compared with traditional gearboxes, it can output larger torque under the same volume, easily coping with the high-load working conditions of mining machinery such as crushing and conveying.

● High Transmission Efficiency & Energy Saving: The optimized gear tooth profile design and high-precision machining ensure smooth meshing of gears, with a single-stage transmission efficiency of up to 97%-99%. Low energy loss reduces the operating cost of equipment for long-term continuous operation in mines.

● Robust & Durable Construction: Made of high-strength alloy steel for gears and housings, through carburizing, quenching and other heat treatment processes, it has excellent wear resistance, impact resistance and corrosion resistance. It can adapt to dusty, humid and vibrating mining environments and has a long service life.

● Compact Structure & Easy Installation: The planetary transmission structure realizes the coaxiality of input and output, with small volume and light weight, which saves the installation space of mining machinery. The modular design facilitates quick installation, disassembly and maintenance, reducing the downtime of equipment.

Key Technical Parameters

Parameter Item	Specification
Transmission Ratio Range	3.5 - 100 (Single-stage / Multi-stage optional)
Nominal Torque	500 N·m - 50,000 N·m (Customizable according to demand)
Transmission Efficiency	Single-stage: 97% - 99%; Multi-stage: 94% - 98%
Input Speed	≤ 3000 r/min
Ambient Temperature	-20℃ - +80℃ (Can be customized for extreme temperatures)
Gear Material	20CrMnTi / 20CrNiMo (High-strength alloy steel)
Housing Material	HT250 / Q235B (High-strength cast iron / steel plate welding)
Protection Grade	IP54 - IP65
Lubrication Method	Oil bath lubrication / Forced lubrication

Quality Control

Before shipping our gear, we conduct rigorous testing to ensure its quality and provide a comprehensive quality report.
1. Dimension Report:A full measurement and record report for 5 pieces product.
2. Material Certificate: Raw material report and the results of spectrochemical analysis
3. Heat Treatment Report: the results of hardness and microstructural testing
4. Accuracy Report: a comprehensive report on K-shape accuracy including profile and lead modifications to reflect your product quality.

Manufacturing Plant

Top ten the first-class enterprises in China are equipped with the most advanced manufacturing, heat treatment and testing equipment, and employ more than 1,200 skilled employees. They have been credited with 31 breakthrough inventions and have been awarded 9 patents, solidifying their position as an industry leader.

Flow of Production

Inspection

We have invested in the latest cutting-edge testing equipment, including Brown & Sharpe measuring machines, Swedish Hexagon Coordinate Measuring Machine, German Mar High Precision Roughness Contour Integrated Machine, German Zeiss Coordinate Measuring Machine, German Klingberg Gear Measuring Instrument, German Profile Measuring Instrument and Japanese roughness testers etc. Our skilled technicians use this technology to perform accurate inspections and guarantee that every product that leaves our factory meets the highest standards of quality and precision. We are committed to exceeding your expectations every time.