Gearboxes

Dunkermoteren PLG 22 HT Series Planetary Gearbox

The Dunkermotoren PLG 22 HT Series Planetary Gearbox is a compact and high-torque transmission solution, engineered for applications that require precise, efficient, and space-saving power transmission. With a robust steel gear design and multiple reduction ratios up to 3188:1, this gearbox is ideal for robotics, automation, and medical equipment.

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Features

  • Compact High-Torque Design: Engineered for tight spaces without compromising performance, the PLG 22 HT delivers continuous torque up to 2.10 Nm and peak acceleration torque up to 2.30 Nm in a compact housing.
  • Wide Reduction Ratio Range: Available in 1 to 5-stage configurations, the gearbox offers an extensive range of reduction ratios from 3.75:1 to 3188.65:1, making it suitable for everything from high-speed automation to low-speed precision control.
  • Steel Planetary Gears: Built for durability and strength, the PLG 22 HT uses hardened steel planetary gears for increased wear resistance and long service life under continuous or dynamic loads.
  • Optional Low-Backlash Version: For precision-critical applications, a low-backlash variant is available on request—ideal for positioning tasks in robotics, optical systems, and CNC machinery.
  • Versatile Mounting and Shaft Options: Supports both 4 mm and 6 mm shaft diameters (up to 3-stage), with axial and radial load capacities up to 45 N and 135 N respectively, offering flexible integration into your mechanical system.
  • Maintenance-Free Operation: Pre-lubricated for life, the PLG 22 HT is designed for maintenance-free operation, with optional food-grade and low-temperature lubrication options for specialised environments.
Specifications
PLG30* Specifications
Reduction Ratio - 3.75 5.40 14.06 20.25 29.16 52.73 75.94 109.35 197.75 284.77 410.06 590.49 741.58 1067.87 1537.73 2214.34 3188.65
Efficiency % 84 77 68 61 53
Number of Stages - 1 2 3 4 5
Continous Torque* Nm 0.25 0.70 1.50 1.80 2.10 1.80
Acceleration torque* Nm 0.28 0.35 0.95 1.00 0.90 1.85 1.70 2.20 2.00 2.30 2.10
Emergency stop torque* Nm 1.00 3.00 3.80
Operating mode - S1 / S8
Max. backlash arcmin 96 114 120
Weight of Gearbox kg 0.06 0.08 0.10 0.12 0.14
Axial Load / Radial Load** N 45/135 (6 mm shaft) 16/48 (4 mm shaft)
* Only for 6 mm shaft/ * Nur für 6 mm Welle ** 10 mm off mounting surface/ ** 10 mm von der Montagefläche entfernt

 

Technical Illustrations
Technical drawing of PLG22HT motor with dimensions in mm, showcasing two views and options for 2 to 5-stage versions.
Downloads
Dunkermoteren_PLG_22_HT_Gearbox_Datasheet.pdf
PLG30* Specifications
Reduction Ratio - 3.75 5.40 14.06 20.25 29.16 52.73 75.94 109.35 197.75 284.77 410.06 590.49 741.58 1067.87 1537.73 2214.34 3188.65
Efficiency % 84 77 68 61 53
Number of Stages - 1 2 3 4 5
Continous Torque* Nm 0.25 0.70 1.50 1.80 2.10 1.80
Acceleration torque* Nm 0.28 0.35 0.95 1.00 0.90 1.85 1.70 2.20 2.00 2.30 2.10
Emergency stop torque* Nm 1.00 3.00 3.80
Operating mode - S1 / S8
Max. backlash arcmin 96 114 120
Weight of Gearbox kg 0.06 0.08 0.10 0.12 0.14
Axial Load / Radial Load** N 45/135 (6 mm shaft) 16/48 (4 mm shaft)
* Only for 6 mm shaft/ * Nur für 6 mm Welle ** 10 mm off mounting surface/ ** 10 mm von der Montagefläche entfernt

 

Technical drawing of PLG22HT motor with dimensions in mm, showcasing two views and options for 2 to 5-stage versions.
Dunkermoteren_PLG_22_HT_Gearbox_Datasheet.pdf

Find the Right Model

Model Number Reduction Ratio Number of Stages
product variant PLG22HT-3.75
product variant PLG22HT-5.40
product variant PLG22HT-14.06
product variant PLG22HT-20.25
product variant PLG22HT-29.16
product variant PLG22HT-52.73
product variant PLG22HT-75.94
product variant PLG22HT-109.35
product variant PLG22HT-197.75
product variant PLG22HT-284.77
product variant PLG22HT-410.06
product variant PLG22HT-590.49
product variant PLG22HT-741.58
product variant PLG22HT-1067.87
product variant PLG22HT-1537.73
product variant PLG22HT-2214.34
product variant PLG22HT-3188.65

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