8MR180

- 360 degrees rotation - Negligible backlash and play - 50.8mm (2 inch) aperture available - Resolution 0.6 arcmin (0.01°) Motorized Rotation Stages 8MR180 provide 360° of rotation with high accuracy and stability. This is an excellent general purpose rotator. Coarse angular position is indicated on a 360° engraved scale on the rotating platform, graduated in 1° increments. Using a dial knob on the axle of a motor, you can read position to each step of the motor. Each stage has a limit switch, which you can use for rough (to a few steps) automatic reference. For precise zero position, read the dial knob, to decide how many correction steps are needed. Rotation stage is driven by a stepping motor, with 200 steps per revolution. A step of the motor makes for 0.01° (0.6 arcmin) of rotation – the resolution of the stage. Stepping Motors "Berger Lahr" RDM 253/50(B) or DSh 200-0,08 are used in 8MR180. A stepping motor is operated by a controller, which must be obtained separately. With our controller 8SMCC1, in 12Volts constant voltage mode, the maximum rotation speed is about 1 turn/min.

8MR180-2

8MR180 has a continuous platform; 8MR180-2 has a 2 inch (50.8 mm) aperture in the platform.

Specifications Resolution..... 0.6 arcmin (0.01°) Wobble......... 0.5 arcmin Eccentricity... 10 µm Load capacity   Horizontal... 100 N   Radial....... 20 N Torque......... 1 Nm Weight   8MR180....... 1.09 kg   8MR180-2..... 1.07 kg

Rotation Stages: Motorized (see this current section 8), and Manual (see section 7)