Siemens Actuator Servomotor SQM1 / SQM2 Series

Siemens Electric Actuators for Air Damper and Oil Burner Control Valve Operation

Siemens SQM1 / SQM2 Series are electromotoric actuators designed to control the positions of air dampers and control valves in oil burners. They operate in conjunction with controllers or switching devices equipped with changeover contacts.

The actuators use a synchronous motor to transmit power through a reduction gear mechanism to the drive shaft. They also feature adjustable cams for configuring switch operating positions.

The Siemens SQM Series consists of two main groups: SQM1, which supports a maximum torque of 10 Nm, and SQM2, which supports a maximum torque of 20 Nm. Different models are available based on torque, running time, rotation direction, and operating voltage.

Key Features of Siemens SQM1 / SQM2

1. Reversible Motor-Driven Actuators

Models are available with clockwise or counterclockwise rotation, depending on the specific model.

2. Torque Options for Different Applications

SQM1 supports a maximum torque of 10 Nm, while SQM2 supports a maximum torque of 20 Nm.

3. Adjustable Switch Operating Positions

Adjustable cams allow the operating points of end switches and auxiliary switches to be configured.

4. Reduction Gear Mechanism

The gear mechanism incorporates self-lubricating sintered bronze bearings and does not require routine gear maintenance under normal operating conditions.

5. Durable Construction

The gear housing is manufactured from die-cast aluminum, while the cover is made of impact-resistant and heat-resistant plastic.

6. IP54 Protection Rating

IP54 protection is provided when cable entries and unused openings are properly secured in accordance with installation requirements.

7. Flexible Mounting Positions

The actuator can be installed in different mounting positions to accommodate system installation requirements.

Siemens Actuator Servomotor SQM1 / SQM2 Series are electric motor-driven actuators designed to control air dampers and control valves in oil burners. They provide torque ratings of 10–20 Nm, with rotation direction options depending on the model. Equipped with adjustable cams for setting operating positions, these actuators are suitable for integration into industrial burner control systems.