Rotary actuator RTHPB-250J
The RTHPB-250J features open aperture of 150 mm and provides arc-second resolution when driven from a micro-stepping or brushless servomotor controller. The low profile design is made possible by the use of the compact precision bearing. The rotating carriage of the stage provides unlimited motorized rotation angle of the load up to 50kg and has large clear aperture to allow the passage of the optical path or cables directly through the stage. The main body of the stage is made from lightweight anodized aluminum and can attach directly to an optical table or moving linear or XY actuators and can be mounted at any orientation. RTHPB-250J stage uses belt drive with stepper or brushless servo motor to achieve high rotating speed. Lightweight design makes it easy to incorporate this rotary stage into high dynamics XY-Theta multi-axes stages.
- Large center aperture 250 mm
- Low profile 42 mm
- Stepper or servo motor driven
- Unlimited rotation
- High speed 150 RPM (with servo motor)
- Home switch
TOP MOTOR MOUNT
BOTTOM MOUNT
 Rotary actuator RTB-8U-TP RTB-8U-TP Diameter 130 mm Aperture 20 mm Height 40 mm |
 Rotary actuator RTB-8UJ RTB-8UJ Diameter 60 mm Aperture 20 mm Height 25 mm |
 Rotary actuator RTHPB-350 Rotary stage RTHPB-350 Diameter 400 mm Aperture 350 mm Height 71 mm |
 Rotary actuator RTHPB-50J RTHPB-50-125J Diameter 125 mm Aperture 50 mm Height 45 mm |
 Rotary actuator RTHPB-100J RTHPB-100J Diameter 180 mm Aperture 100 mm Height 42 mm |
 Rotary actuator RTHPB-150J RTHPB-150J Diameter 230 mm Aperture 150 mm Height 42 mm |
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Parameter |
Unit |
RTHPB-250J |
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Rotation range |
deg |
Continuous 360◦ |
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Transalted resolution (Note1) |
Arc-sec |
10 |
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Max speed (Note 2) |
RPM |
100 RPM (with stepper) 200 RPM (with servo) |
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Repeatability (unidirectional) |
Arc-min |
2 |
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Axial load capacity |
Kg |
40 (Note 1) |
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| Stage weight | Kg | 9 | |
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Motor type |
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Stepper motor (standard) NEMA34 Servo motor/encoder (optional), NEMA34 |
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Drive mechanism |
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Motorized belt drive |
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Transmission ratio motor/stage |
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6:1 |
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Home sensor |
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Open collector, 10 mA, 5VDC |
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Construction |
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anodized aluminum |
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Note 1 |
Driver or encoder resolution dependent |
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Note 2 |
Driver voltage and resolution dependent |
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Note 1: Ability to control load weight depends on motion profile and load moment of inertia
