Dunkermotoren SL 38 STL Series Servo Linear Motor
The Dunkermotoren SL 38 STL Series is a high-performance stainless steel servo linear motor designed for demanding industrial, food-grade, and hygienic applications. With continuous forces up to 430.5 N (with water cooling) and peak forces reaching 3690 N, the SL 38 STL delivers exceptional force density in a compact, IP65-rated package. The SL ...
Read MoreThe Dunkermotoren SL 38 STL Series is a high-performance stainless steel servo linear motor designed for demanding industrial, food-grade, and hygienic applications. With continuous forces up to 430.5 N (with water cooling) and peak forces reaching 3690 N, the SL 38 STL delivers exceptional force density in a compact, IP65-rated package.
The SL 38 STL features an integrated linear encoder and is available in two configurations: the SL 38 A actuator version with a moving motor housing and maintenance-free sleeve bearing system, and the SL 38 C component version with a moving magnetic rod. Operating from 325 VDC or 560 VDC supply voltages, these motors achieve peak accelerations exceeding 200 m/s² and speeds of up to 8.3 m/s.
Available in three stack lengths: SL 38x06, SL 38x10, and SL 38x14, each offered in 325 V and 560 V versions, the series provides flexibility to match application force and speed requirements. Standard water cooling connection (M7x6) ensures reliable thermal management in continuous duty cycles.
Compatible with commercially available servo controllers from Schneider, Siemens, and others (settings available), the SL 38 STL is ideal for precision positioning, automation, and food processing environments requiring special surface treatments.
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Features
- Peak Force: up to 3690 N
- Continuous Force: up to 430.5 N (water cooled)
- Supply Voltage: 325 VDC or 560 VDC
- Peak Acceleration: >200 m/s²
- IP65 Protection | Stainless Steel
Specifications
| Type | SL 38x06 STL | SL 38x10 STL | SL 38x14 STL | ||||
|---|---|---|---|---|---|---|---|
| Nominal Voltage | VDC | 325 | 560 | 325 | 560 | 325 | 560 |
| Peak Current1) | Apk | 30 | 26 | 30 | 18 | 30 | |
| Peak Force1) | N | 1581 | 2285 | 2637 | 2214 | 3690 | |
| Nominal Current (w/o water cooling)2) | Apk | 1.9 | 1.9 | 1.9 | |||
| Nominal Force (w/o water cooling)2) | N | 100.1 | 167.0 | 233.7 | |||
| Nominal Current (with water cooling)2) | Apk | 3.5 | 3.5 | 3.5 | |||
| Nominal Force (with water cooling)2) | N | 184.5 | 307.7 | 430.5 | |||
| Maximum Speed – SL 38 A2) | m/s* | 3.8 | 6.3 | 2.7 | 4.4 | 2.0 | 3.4 |
| Peak Acceleration – SL 38 A2) | m/s²** | >200 | >200 | >200 | >200 | >200 | >200 |
| Maximum Speed – SL 38 C2) | m/s*** | 4.7 | 8.3 | 2.9 | 5.2 | 2.9 | 3.7 |
| Peak Acceleration – SL 38 C2) | m/s²*** | >200 | >200 | >200 | >200 | >200 | >200 |
| Pole Pitch | mm | 51.2 | 51.2 | 51.2 | |||
| Force Constant (sine commutation)1) | N/Apk | 52.7 | 87.9 | 123.0 | |||
| Forcer Mass | kg | 3.0 | 5.0 | 7.2 | |||
| Rod Mass | kg/m | 8.3 | 8.3 | 8.3 | |||
| At 25°C1) | |||||||
| At 100°C2) | |||||||
| *Moving magnetic rod with 4xx mm stroke | |||||||
| **Moving magnetic rod with 2x mm stroke | |||||||
| ***Moving motor housing with 2xxx mm stroke | |||||||
Technical Drawings
Warranty & Returns
Warranty periods vary by product. Please refer to the Powerbox Warranty Policy for the applicable coverage period against manufacturing defects from date of purchase. For returns and RMA requests, please visit our RMA support page or contact our support team directly.