Series EPN2: 2 Stage Planetary Gearbox

Output speed 0.425‐445 r/min
Ratio range 12.67-50.9
Input power 0.25KW-200kw
Mounting position all positions
Mounting dimensions Standard /custom
Reduction ratio i >3
Permit torque range ≤ 540000N. M


Series EPN2: 2 Stage Planetary Gearbox

2-stage planetary gearboxes (EPN2 series) are designed for high efficiency (over 95%) and higher power density applications. They are modular in design so that they can be stacked according to the customer’s requirements.
Based on our research and development, each 2-stage planetary gearbox (EPN2 series) is designed to withstand strong radial and axial loads on its output shaft. In addition, each two-stage planetary gearbox has high torque, drive efficiency, and load capacity.
Additionally, the efficiency of each planetary gearbox is due to the proportional torque distribution within the gear system. This reduces wear and increases power transmission.
Our two-stage planetary gearboxes (EPN2 series) feature ductile iron housings for increased rigidity and anti-lock. They are also case hardened for a high-quality surface finish that helps increase the efficiency of every 2-stage planetary gearbox.
We have a wide range of 2-stage planetary gearboxes (EPN2 series) to choose from and are a renowned manufacturer of planetary gear reducers.

Key Features
  • Modular design, combined according to customer requirement
  • Heavy bearing, Design for heavy-duty Application
  • Hardened gearing, long life with high reliability
  • Low-speed shaft design
Torque range 1000 … 540000 Nm Input IEC Flange
Mechanical rating (n1 = 1500 min-1) up to 200kW Electric motor
Gear ratios 12.67 … 50.9 Solid input shaft with or without fan cooling – inch or metric dims.
Gear unit versions In line Applicable AC motors Integral motors and brake motors
IEC-normalized motors and brake motors
Mounting type Foot Single and dual speed motors
Flange mounted Main brake features DC and AC supply
Torque-arm Faster brake reaction through electronically controlled rectifier
Output shaft options Solid shaft Main motor options Thermistors and thermostat sensors
Splined shaft Independent forced cooling
Female splined shaft Line driver and push-pull incremental encoder
Hollow shaft with shrink disc


EPN series planetary gearbox torque sheet with models

Gear unit size 200 201 240 241 280 281 353/354 355 400 401
Normal output torque
1500 2000 3500 4000 4300 7300 13000 16000 20000 23000
Gear unit size 428 429 445 446 510 542 543 695 810 885
Normal output torque
26000 30000 32000 43000 63000 75000 100000 150000 300000 420000