Hollow Rotary Actuator
Your Leading Hollow Rotary Actuator Supplier
Dongguan Ruixin Automated Equipment Co., Ltd. is a professional manufacturer of precision transmission components for industrial automation, including reducers, hollow rotary platforms, and gear racks. Our rotary indexer tables come in a variety of types, including rotator tables, hollow rotary actuators, and hollow shaft servo motors. These products are widely used in robotics, CNC machine tools, semiconductor equipment, and logistics automation, and we can guarantee a stable, long-term supply.
Why Choose Us?
Advanced Equipment
Ruixin Automation operates a complete manufacturing chain with high-precision processing and testing equipment imported from Germany and Japan, including ZEISS CMMs and Osaka Precision gear testing systems. This ensures stable quality, accurate tolerances, and reliable product consistency for long-term supply.
Professional Service
Our service goes beyond after-sales support and focuses on pre-sales technical consultation and product customization. We work closely with customers to understand application needs, helping reduce purchasing risk and improve project efficiency.
Professional Team
With over 300 employees, our team maintains strict control over product quality and service processes. A dedicated and well-trained after-sales service team ensures clear communication, timely response, and reliable support throughout the product lifecycle.
Broad Market
Our automation equipment is supplied to customers in Europe, North America, and Asia, including markets such as Germany, Italy, the United States, Canada, the United Kingdom, and Southeast Asia. Stable performance and consistent delivery have earned long-term cooperation and positive feedback from international buyers.
Specifications of Hollow Rotary Actuator
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Model |
Specifications |
SHT60 |
SHT60P |
SHT60Z |
SHT85 |
SHT85P |
SHT85Z |
SHT130 |
SHT130P |
SHT130Z |
SHT200 |
SHT200P |
SHT200Z |
SHT280 |
SHT280P |
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Bearing structure |
Cross roller bearing |
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Reduction ratio |
I |
5 10 |
20 |
15 |
5 10 |
15 20 25 30 50 |
15 20 30 |
10 18 |
20 30 40 50 |
20 30 |
10 |
20 |
20 |
10 |
50 |
|
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18 |
30 |
30 |
70 |
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40 |
100 |
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50 |
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Rated output torque |
N.m |
5 4 |
5 |
5 |
28 18 |
25 25 25 25 25 |
28 28 28 |
40 28 |
40 40 40 40 |
40 40 |
90 |
90 |
90 |
120 |
120 |
|
|
65 |
90 |
90 |
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90 |
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90 |
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Positioning accuracy |
Arc-min |
≤1 |
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Repeated positioning accuracy |
Arc-sec |
≤15 |
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Allowable disk speed |
Rpm |
200 Intermittent operation |
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Adapt to servo motor |
W |
50-100 |
200-400 |
750 |
1000 |
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Suitable for stepping motor |
42 Stepper |
57 Stepper |
86 Stepper |
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Allowable axial load |
N |
230 |
500 |
2000 |
4000 |
8000 |
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Allowable moment of inertia |
N.m |
5 |
10 |
50 |
100 |
120 |
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Torsional rigidity |
N.m/arc min |
2.5 |
6 |
20 |
35 |
70 |
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Backlash |
No backlash(Adjustable structure) |
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Accuracy life |
H |
30000h Intermittent operation |
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Protection level |
IP |
40 |
50 |
40 |
50 |
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Lubrication method |
Long-term lubrication |
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Installation method |
Arbitrary |
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Concentricity of rotating platform |
mm |
≤0.01 |
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Parallelism of rotating platform |
mm |
≤0.01 |
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Transmission efficiency |
% |
95 |
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Weight |
kg |
0.6 |
1 |
1.2 |
1.4 |
2.6 |
2.6 |
2.5 |
3.8 |
3.8 |
8 |
12 |
12 |
20 |
28 |
|
Customization Options
Shaft Diameter
Customizable
Flange Style
Customizable
Encoder Options
Customizable
MOQ
Customizable
Advantages of Hollow Rotary Actuator

Simplified Wiring and Piping:The hollow center allows for the passage of cables, pneumatic lines, and even optical fibers through the actuator.This eliminates the need for external routing, reducing clutter and potential interference.Equipment can be designed with a smaller footprint due to the reduced need for space around the actuator for wiring and piping.
Reduced Assembly Time and Parts Count:The hollow flange design allows for direct mounting of loads, eliminating the need for couplings or other connecting parts. This reduces the number of components, simplifying assembly and reducing the potential for errors. Reduced parts count also translates to lower costs and less maintenance.
Enhanced Precision and Stability:By eliminating the need for external couplings and transmission mechanisms, hollow rotary actuators minimize the impact of component rigidity and assembly errors on accuracy.This leads to more precise and repeatable positioning.
Compact and Lightweight Design:The integrated design, with the motor and hollow output table, results in a more compact unit compared to traditional designs using separate components.This is especially beneficial in applications where space is limited.
Increased Flexibility and Design Options:The hollow center provides flexibility in how the actuator is integrated into the overall system. For example, equipment tables or arms can be mounted directly onto the hollow output table, simplifying the design and reducing the need for custom mounting solutions.
Improved Rigidity and Load Capacity:Some hollow rotary actuators, like the DGII series from Oriental Motor, utilize cross-roller bearings for high rigidity and load capacity.This allows for handling of heavier loads and withstanding higher moment loads.

Application of Hollow Rotary Actuator
Robotics
The hollow shaft facilitates the routing of cables for operating a robot's manipulator arms or hands.
Semiconductors
The actuator's hollow shaft can also accommodate wiring and tubing for inspection equipment and wafer handling systems used in semiconductor manufacturing.
Automation
Actuators enable the routing of pneumatic lines and cables for factory automation equipment.
Machine tools
Milling machines and similar equipment can use hollow shaft actuators to permit the running of sensor cables and coolant lines.
Installation Precautions of Hollow Rotary Actuator
Before connecting the motor and the hollow rotating platform, please ensure that the motor shaft keyway is perpendicular to the clamping bolt.
To ensure even force, first screw in the installation bolts at any diagonal position, but do not tighten them, then screw in the other two diagonal installation bolts, and finally tighten all four installation bolts one by one.
Finally, tighten the clamping bolts. All clamping bolts must be fixed and checked with a torque wrench according to the specified fixed torque data.
Payment Terms
T.T with 30% downpayment, 70%before shipment.
Paypal or West Union also accept.
Packaging & Shipping
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Packaging |
Protective film, cardboard box, wooden crate |
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Shipping |
By logistics; by shipping; by air. |

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