Ziehl-Abegg ZAtop SM250.80D Gearless Elevator Traction Machine
Ziehl-Abegg ZAtop SM250.80D is a Gearless Elevator Traction Machine elevator drive from Germany for heavy-duty passenger, goods and high-capacity projects. It is designed for precise speed control, low noise and reliable traction performance in modern lift projects.
Description
What is a gearless traction machine?
The Ziehl-Abegg ZAtop SM250.80D is a gearless elevator traction machine. A gearless machine couples a permanent-magnet motor directly to the drive sheave, with no gearbox between them — which removes the largest source of energy loss, gear oil maintenance and mechanical noise found in geared systems.
Gearless machines are the standard choice for machine roomless (MRL) elevators and for installations where quiet running and low energy consumption are specified. Nazar Elevator supplies the Ziehl-Abegg ZAtop SM250.80D to elevator contractors and distributors worldwide.
Technical Specifications
Technical Specifications
| Machine type | Gearless permanent-magnet synchronous elevator machine |
|---|---|
| Product series | ZAtop |
| Nominal torque | 2000 ... 2500 Nm |
| Max. axle load | 8000 kg |
| Nominal speed | 54 ... 300 rpm |
| Rated output power | 12.6 ... 72.3 kW |
| Weight | 1020 kg |
| Manufacturer | ZIEHL-ABEGG SE, Künzelsau, Germany |
Motor types in this machine
| Motor type | Nominal torque (Nm) | Max. axle load (kg) | Nominal speed (rpm) | Rated power (kW) | Weight (kg) |
|---|---|---|---|---|---|
| SM250.80D-20 | 2000 - 2500 | 8000 | 54 - 300 | 12.6 - 72.3 | 1020 |
Application examples
| Suspension | Payload (kg) | Speed (m/s) | Traction sheave (mm) | Motor type | Number of ropes | Rope Ø (mm) | Motor power (kW) | Rated current (A) |
|---|---|---|---|---|---|---|---|---|
| 1:1 | 1000 | 2.00 | 520 | SM250.80D-20 | 9 | 12.0 | 18.8 | 52.0 |
| 1:1 | 1250 | 1.60 | 640 | SM250.80D-20 | 7 | 16.0 | 14.1 | 50.0 |
| 2:1 | 1600 | 2.50 | 640 | SM250.80D-20 | 9 | 13.0 | 36.4 | 94.0 |
| 2:1 | 2000 | 1.60 | 520 | SM250.80D-20 | 11 | 10.0 | 25.1 | 67.0 |
| 2:1 | 2500 | 2.00 | 520 | SM250.80D-20 | 9 | 13.0 | 40.8 | 120.0 |
| 2:1 | 3000 | 1.00 | 440 | SM250.80D-20 | 11 | 11.0 | 28.3 | 86.0 |
| 2:1 | 3000 | 1.60 | 440 | SM250.80D-20 | 11 | 10.0 | 28.9 | 78.0 |
| 4:1 | 5000 | 1.00 | 440 | SM250.80D-20 | 11 | 10.0 | 36.4 | 94.0 |
| 4:1 | 6300 | 1.00 | 440 | SM250.80D-20 | 11 | 10.0 | 53.4 | 150.0 |
| 4:1 | 6500 | 0.80 | 440 | SM250.80D-20 | 11 | 10.0 | 40.8 | 120.0 |
| 6:1 | 6000 | 1.00 | 520 | SM250.80D-20 | 8 | 10.0 | 46.5 | 118.0 |
Notes
- Synchronous permanent-magnet motor supplied in accordance with Lift Directive 2014/33/EU. The brake is a certified safety component and can form part of the protection against ascending car overspeed and against unintended car movement.
- The application examples are selection guidance published by the manufacturer, not the full range of possible configurations. Final selection should follow a ZAlift calculation for the specific shaft.
Data source: ZIEHL-ABEGG Drive Technology for Elevators catalogue, 2025 edition.
Frequently Asked Questions
The Ziehl-Abegg ZAtop SM250.80D Gearless Elevator Traction Machine is rated for 1,800 kg (1:1) / 3,500 kg (2:1) / 6,500 kg (4:1). Always verify the final capacity against the official data sheet and elevator calculation before ordering.
The Ziehl-Abegg ZAtop SM250.80D Gearless Elevator Traction Machine is designed for up to 4.0 m/s. The exact speed configuration depends on roping ratio, sheave diameter and inverter settings.
The Ziehl-Abegg ZAtop SM250.80D Gearless Elevator Traction Machine is a Gearless Elevator Traction Machine. This design reduces mechanical losses and simplifies maintenance compared to conventional solutions.
heavy-duty passenger, goods and high-capacity projects
Yes. Nazar Elevator can supply the Ziehl-Abegg ZAtop SM250.80D Gearless Elevator Traction Machine as part of a complete lift package including cabin, doors, control panel and safety components. Contact our export team for project-specific configurations.
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