THR130 Hollow Rotary Actuator Rotating Platform Table With High Precision Planetary Gearbox
THR130 Hollow Rotary Actuator Rotating Platform Table With High Precision Planetary Gearbox
THR130 Hollow Rotary Actuator Rotating Platform Table With High Precision Planetary Gearbox, also known as Hollow Rotary Platform and Hollow Rotary Table, is a precision motion control device used to rotate a load around an axis. It is designed with a hollow core that allows cables, fluid lines, or other necessary components to pass through the center without affecting the rotation of the device.
Product Overview
THR130 Hollow Rotary Actuator Rotating Platform Table With High Precision Planetary Gearbox is widely used in various fields, including robotics, aerospace, medical equipment, military equipment, optical instruments, and industrial automation. With its high precision and compact design, it has become an essential part of many motion control systems.

Basic Structure of Hollow Rotary Actuator

1. Crossed Roller Bearing
The crossed roller bearing is a type of bearing that can support both radial and axial loads at the same time. It is used in the Hollow Rotary Actuator to ensure smooth and accurate rotation of the load.
2. High Precision Gear
The high-precision gear is an essential part of the Hollow Rotary Actuator. It is used to transmit power from the motor to the load and ensure accurate positioning and rotation.
3. Input Flange
The input flange is the part of the Hollow Rotary Actuator that connects to the motor or other power source.
4. Input Shaft
The input shaft is the part of the Hollow Rotary Actuator that connects to the motor or other power source and transmits power to the gear system.
5. Sensor
The sensor is used to detect the position and rotation of the Hollow Rotary Actuator and provide feedback to the control system.
Working Principle

1. Drive source
The Hollow Rotary Actuator is usually powered by a motor, such as a servo motor, stepper motor, or DC motor. The motor converts electrical energy into mechanical energy and transmits it to the gear system through the input shaft.
2. Transmission mechanism
The transmission system usually consists of a set of precision gears, such as a planetary gear system. The output of the motor is transmitted to the sun gear, which drives a set of planetary gears that rotate around it. These planetary gears rotate around their own axes while also rotating around the internal ring gear, which reduces the rotation speed and increases the torque of the Hollow Rotary Actuator.
3. Hollow shaft design
The core feature of the Hollow Rotary Actuator is the internal hollow shaft, which allows cables, fluid lines, or other necessary components to pass through the center without affecting the rotation of the device. This feature greatly enhances the integration of the device in limited space.
4. Position control and feedback
The Hollow Rotary Actuator is equipped with position sensors, such as encoders or magnetostrictive displacement sensors, to achieve precise position control. These sensors detect the rotation angle of the actuator in real-time and send data back to the control system, forming a closed-loop feedback mechanism that ensures accurate movement of the actuator.
5. Load application
The output end of the Hollow Rotary Actuator is connected to the load that needs to be rotated, such as a robot joint, radar antenna, medical equipment, etc. It enables precise continuous or intermittent rotation operations.
Design and Selection Considerations
The design and selection of Hollow Rotary Actuator depend on various factors, including the load requirements, the required precision, the speed and torque requirements, the environmental conditions, and the operating conditions. Here is a table summarizing the key design and selection considerations:
| Design and Selection Factors | Description |
|---|---|
| Load requirements | The weight, size, and shape of the load must be considered to ensure that the Hollow Rotary Actuator can handle the load and achieve the desired motion. |
| Precision requirements | The required degree of precision must be considered when selecting the Hollow Rotary Actuator, including the resolution of the position sensor and the accuracy of the gear system. |
| Speed and torque requirements | The required speed and torque must be considered when selecting the Hollow Rotary Actuator, including the output speed and torque of the gear system and the power and speed of the motor. |
| Environmental conditions | The operating environment must be considered when selecting the Hollow Rotary Actuator, including the temperature, humidity, dust, and vibration levels. |
| Operating conditions | The operating conditions must be considered when selecting the Hollow Rotary Actuator, including the frequency of operation, the duty cycle, and the required lifespan. |
Applications of Hollow Rotary Actuator

1. Robotics
Hollow Rotary Actuator is widely used in robotics, including industrial robots, medical robots, and service robots. It is used to control the motion of robot arms, joints, and end-effectors, enabling precise and flexible movement.
2. Aerospace
Hollow Rotary Actuator is used in aerospace applications, including satellite positioning systems, antenna positioning systems, and space exploration robots. It is used to provide precise and reliable motion control in harsh environments.
3. Medical Equipment
Hollow Rotary Actuator is used in medical equipment, including surgical robots, MRI machines, and X-ray machines. It enables precise and safe movement of medical devices, ensuring accurate diagnosis and treatment.
4. Military Equipment
Hollow Rotary Actuator is used in military equipment, including weapon systems, surveillance systems, and unmanned vehicles. It enables accurate and stable motion control in various combat and surveillance scenarios.
5. Optical Instruments
Hollow Rotary Actuator is used in optical instruments, including telescopes, spectroscopes, and laser systems. It enables precise and stable motion control of optical components, ensuring accurate measurement and analysis.
6. Industrial Automation
Hollow Rotary Actuator is used in various industrial automation applications, including assembly lines, inspection systems, and packaging systems. It enables precise and repeatable motion control, improving production efficiency and quality.
About Our Company
We are a modern enterprise that integrates R&D, design, manufacturing, sales, and service of professional servo electric cylinders, servo press equipment, and other servo stamping equipment. We have a professional design team, processing team, assembly team, sales, and after-sales service team. Our company mainly researches and produces servo cylinders, servo presses, electric push rods, electric slide tables, and multi-degree-of-freedom platforms in servo stamping equipment. We always adhere to the design concept of "Integrity, sincerity, stability, and compliance", and the core values of "Elaborate design, fine manufacturing, exquisite products, and sincere service".
Author: Miya
Product Quick Detail:
- Standard and non-standard available
- With high quality and competitive price
- Prompt delivery
- Packing as per customer’s demand.
We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.
Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.

Materials Available
1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
Surface Treatment
Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.
Processing Method
CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
QC & Certificate
Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009
Package & Lead Time
Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port




