Description
Our 4-stage planetary gearboxes (EPN4 series) are equipped with heavy-duty bearings on the low shaft. We designed it to withstand huge radial loads. Thanks to our R&D team, they made it easier for us to develop a 4-stage planetary gearbox with proportional torque distribution.
Each 4-stage planetary gearbox is case hardened for transmission efficiency. Additionally, they feature rigid and ductile iron housings that remain durable and reliable even in harsh operating environments.
As a planetary drive manufacturer, in addition to high performance, reliable load carrying capacity, and low-speed shaft bearings, all our 4-stage planetary gearboxes produce virtually no noise.
Furthermore, with our extensive experience in planetary gearboxes, we can obtain various output speeds and torques. You can use the planetary gear ratio formula to determine your unique application’s best 4-stage planetary gearbox.
You can find custom designs alongside our standard 4-stage planetary gearboxes.
- 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 | 140.36-3144.53 | Solid input shaft with or without fan cooling – inch or metric dims. | |
| Gear unit versions | Applicable AC motors | Integral motors and brake motors | |
| Right angle (with bevel gear set) | 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 T2N[Nm] |
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 T2N[Nm] |
26000 | 30000 | 32000 | 43000 | 63000 | 75000 | 100000 | 150000 | 300000 | 420000 |



