QJ Reducer
QJ Reducer - Image 2
QJ Reducer - Image 3
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QJ Reducer

QJ Reducer Specifications:

  • Models: QJR-D, QJRS-D, QJS-D
  • Speed Ratios: 10, 12.5, 16, 20, 25, 31.5, 40, 50, 63, 80, 100, 125, 160, 200
  • Assembly Types: I, II, III, IV, V, VI, VII, VIII, IX
  • Gear Shaft and Gear Materials: 42CrMo, 35CrMo
  • Output Torque Range: 820 Nm to 33,500 Nm
  • Custom Options: Non-standard customization available; production can be based on customer-provided drawings and specifications.
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Overview of QJ Reducer

The QJ Reducer is designed for various crane mechanisms and is also widely applied in transmission systems across industries, including transportation, metallurgy, mining, chemical, and light industries.

Features
  • Wide Reduction Ratio Range: Nominal speed ratios range from 10 to 200.
  • High Mechanical Transmission Efficiency: Achieves 96% efficiency in two-stage transmission and 94% in three-stage.
  • Smooth Operation and Low Noise: Provides stable performance with minimal noise levels.
  • High Durability and Load Capacity: Using 42CrMo and 35CrMo materials, forged and tempered for gear shafts and gears, the gearbox offers long service life and high load capacity.
  • Easy Disassembly and Installation: Designed for ease of maintenance and installation.
Operating Conditions
  • Peripheral gear speed not exceeding 16 m/s.
  • High-speed shaft rotation not exceeding 1000 rpm.
  • Ambient temperature ranging from -40°C to 45°C.
  • Capable of bi-directional operation.
Models and Gear Ratios
Type Speed Ratio
QJR-D 10 12.5 16 20 25 31.5
QJS-D

QJRS-D

 40 50 63 80 100 125 160 200
Installation Methods

 

QJR-D Reducer Dimensions Table

 

 

QJS-D Reducer Dimensions Table

 

 

QJRS-D Reducer Dimensions Table

 

 

Output Shaft End Types and Dimensions

K Value for QJR-D, QJS-D, and QJRS-D Models

Center distance 140 170 200 236 280 335 400 450 500 560 630 710 800 900 1000
K 130 150 175 200 220 260 310 335 370 410 450 510 570 640 700
Maximum Permissible Radial Load on Gearbox Output Shaft End (at 950 rpm)
Center distance 140 170 200 236 280 335 400 450 500 560 630 710 800 900 1000
Maximum permissible radial load（KN） R 5 7 9 15 21 28 35 55 60 75 100 107 120 150 200
S,RS 5 8 10 15 30 37 55 64 93 120 150 170 200 240 270

Inquiry

Contact Form Demo

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