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RM-5 Low Temperature Rotary Stage

RM-5 Low Temperature Rotary Positioner

Thermal Chamber
Envirotronics Thermal Chamber

This version of the RM-5 is designed to operate from -50°C to 70°C. To achieve this low temperature range, we use a specially designed stepper motor, Molykote 33 grease on all bearings and worm gear, and the housing is also modified to allow proper bearing fit at -50°C. The RM-5 design takes advantage of a single preloaded crossed roller bearing for the table movement. This design approach eliminates the use of a dual bearing configuration thus improving on axial runout and wobble. This rotary table utilizes a worm gear drive with available gear ratios of 72:1 and 36:1. The RM-5 is available with an optical home switch and 4000 CPR rotary encoder.

We use an Envirotronics thermal chamber to verify operation of each stage at the temperature extremes.


RM-5 Low Temperature Motorized Rotary Stage

Typical lead-time: 6-7 Weeks
Part No. N/A
0.36 arc-sec (72:1 gear ratio, 250 microsteps)
±72 arc-sec
Max. Speed
Stepper Motor: 25°/sec (72:1 gear ratio), 50°/sec (36:1 gear ratio)
125 arc-sec
Max. Output Torque
10.1 Nm (90 lb-in)
Max. Moment Load
54.2 Nm (480 lb-in)
Max Load Capacity
90.7 kg (200 lbs)
Travel Range
360° Continuous
Optical rotary encoder mounted to rear of motor, 4000 CPR with Index
Limit Switches
Optical home switch Optical index mark on encoder (with encoder option)
Gear Ratio
72:1 or 36:1
Stage Weight
3.6 kg (8 lbs)
Aluminum Alloy Construction
Black Anodize
Operating Temperature
-50°C to 70°C
RM-5 Motorized Rotary Stage RM-5 Motorized Rotary StageClick to Enlarge
Motor Options


Size 23 Stepper Motor
  • NEMA 23 high torque stepper motor
  • 2.8 Amp/Phase
  • 1.8 degrees/step
  • Compatible with the following motion controllers:
    NSC-A1 Series | NSC-G Series
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