DM-MR10 Miniature Rotary Actuator, 10 N·m

Overview

The DM-MR10 provides controlled rotation in a package small enough to mount directly on a valve stem or a shutter shaft. A brushless motor drives through a low-backlash planetary stage, and an absolute encoder reports position over RS485 without a homing cycle at power-up.

The absolute encoder is the practical difference in valve and damper applications: after a power loss the actuator knows where it is and moves to the commanded position without driving the mechanism against a stop. Torque is limited electronically, so a jammed valve stalls the actuator instead of damaging it.

Key features

• 10 N·m continuous torque, 25 N·m peak
• 0.05° repeatability with absolute encoder feedback
• RS485 Modbus control, optional 0-10 V or 4-20 mA
• Electronic torque limiting and stall detection
• Manual override hex on the output shaft
• IP65 housing, -10 to +60 °C operating range

Typical applications

• Quarter-turn valve and damper actuation
• Optical shutter and filter wheel indexing
• Rotary indexing tables in assembly machines
• Adjustable orifice and louvre control

Sizing note

Size on the running torque plus a 50% margin for breakaway and fouling, not on the nameplate torque alone. A valve that has not moved for six months needs more torque to break away than the datasheet friction figure suggests.