ECOSTEP 34S42-0560, high torque NEMA 34 servo motor
Technical specifications
| Flange | 86 mm |
| Max. DC link voltage | 150 VDC |
| Maximum speed | 2500 rpm |
| Peak torque | 3.5 Nm |
| Stall torque | 3.5 Nm |
Overview
The ECOSTEP 34S42-0560 is a high-performance rotary servo motor in the ECOSTEP 34S series. It combines a compact NEMA 34 (86 mm) flange with a housing length of 114 mm, a shaft diameter of 12 mm, and a mass of approximately 2.6 kg, delivering high torque in a relatively small footprint for its class.
At a 150 V DC link, the motor delivers approximately 2.5 Nm rated torque at 500 min⁻¹ and about 131 W rated power. This makes it suitable for demanding axes with higher continuous torque and moderate speed. Standard protection is IP40, with an IP65 option for more demanding environments (shaft gland remains IP40). The ECOSTEP 34S series supports application-specific customization with mechanical options such as holding brakes, shaft/flange variants, and protection upgrades. Customer-specific winding adjustments are available from small quantities to align the motor with the desired operating point. Different encoder systems and predefined connection/cable options support straightforward integration with the recommended ECOVARIO 214 servo amplifier.
Advantages
The ECOSTEP 34S42-0560 offers high-torque NEMA 34 servo motor performance for compact but powerful motion tasks.
- When high torque at low speed and precise control are required, ECOSTEP motors provide a cost-efficient alternative to traditional servo motors.
- Compact and powerful: Very high torque in a NEMA 34 frame with 114 mm housing length enables strong motion control in tight spaces.
- Direct drive capable:3.5 Nm peak torque and 2.5 Nm rated torque can allow direct drive concepts without a gearbox in many applications, reducing external gear components.
- High dynamic performance: Genuine servo operation supports rapid acceleration, precise speed control, and accurate positioning.
- Customizable operating point: Mechanical options and customer-specific winding adjustments help align the motor with the required torque-speed range.
- Economic efficiency: A strong price-to-performance ratio makes it an attractive alternative to AC servo motors in similar use cases.
Where it fits
Use this compact rotary servo motor when you need high-torque NEMA 34 servo axes in limited space.
- Dynamic rotary or linear axes in assembly and handling systems
- Packaging, indexing, and format adjustment axes with higher load or inertia
- Medium to heavy pick-and-place and positioning units in automation equipment
- Rotary drives in machinery upgrades where more torque is required without changing the flange size
- Servo axes in special machinery where a NEMA 34 servo motor must combine torque, dynamics, and customization
These are application examples and do not represent specific approvals.
Interfaces
The ECOSTEP 34S42-0560 is designed for operation with DC link voltages up to 170 V DC and is optimized for use with the ECOVARIO 214 servo amplifier.
- Encoder options:
- Incremental: Standard resolutions from 8,000 to 160,000 inc/rev
- SinCos: 1000 periods per revolution
- Absolute: Up to 17-bit single turn and 12-bit multi-turn, with single-turn resolutions up to 19-bit and individual resolutions up to 256,000 inc/rev possible
- Mechanical and protection options: Optional 5 Nm holding brake, shaft with key or long shaft, bearing flange variants, and IP65 housing option (shaft gland remains IP40).
- Connection and cabling: Mating connector sets include M23 motor and encoder connectors and a dedicated brake connector. Pre-assembled motor, brake, and encoder cables support reliable wiring and speed up commissioning in the drive system.
