TH280 Hollow Rotary Actuator Rotating Platform Table With High Precision Planetary Gearbox
TH280 Hollow Rotary Actuator Rotating Platform Table With High Precision Planetary Gearbox
The TH280 Hollow Rotary Actuator Rotating Platform Table with High Precision Planetary Gearbox is a device used for precision rotary motion control. It is designed with a hollow center shaft that allows cables, fluid lines, or other necessary components to pass through without affecting the rotary function of the actuator. The TH280 Hollow Rotary Actuator Rotating Platform Table with High Precision Planetary Gearbox is also referred to as the Hollow Rotary Platform and Hollow Rotary Table. This device has a wide range of applications in various fields, and it is expected to have higher market demand in the future.

Basic Construction of Hollow Rotary Actuator

1. Cross Roller Bearing
The cross roller bearing is a type of bearing that can bear radial and axial loads at the same time. It is mainly used to support the rotating shaft and ensure the accuracy of the positioning.
2. Precision Gear
The precision gear is used to transfer the torque from the motor to the output shaft. It is made of high-quality materials to ensure the stability of the transmission system.
3. Input Mounting Flange
The input mounting flange is used to connect the motor to the actuator. It is designed to ensure the accuracy of the alignment between the motor and the actuator.
4. Input Shaft
The input shaft is connected to the motor and rotates with it. It transfers the torque from the motor to the transmission system.
5. Induction Device
The induction device is used to detect the rotation angle of the actuator and provide feedback to the control system in real-time. It is essential for accurate position control.

Working Principle of Hollow Rotary Actuator
The working principle of the Hollow Rotary Actuator involves four main parts:
1. Drive Source
The Hollow Rotary Actuator is powered by a motor, which can be a servo motor, a stepper motor, or a DC motor. The motor converts electrical energy into mechanical energy and transmits it to the transmission system through the input shaft.
2. Transmission Mechanism
The transmission system consists of a set of precision gears, such as a planetary gearbox. The motor's power is transmitted to the sun gear through the input shaft, and the sun gear drives a set of planetary gears. These planetary gears rotate around the sun gear and rotate around their own axes at the same time, thus achieving torque amplification and reducing the rotational speed. This design allows the Hollow Rotary Actuator to provide high torque output while maintaining a compact structure size.
3. Hollow Shaft Design
The Hollow Rotary Actuator has a hollow rotating shaft inside, which allows cables, fluid lines, or other necessary components to pass through the center axis without affecting the actuator's rotary function. This feature greatly enhances the equipment's integration 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 actuator's rotation angle in real-time and provide feedback to the control system, forming a closed-loop feedback mechanism to ensure that the actuator accurately follows the target position set by the control system.
5. Load Application
The output end of the actuator is connected to the load that needs to rotate, such as robot joints, radar antennas, medical equipment, etc., enabling accurate continuous or intermittent rotation operations.

Design and Selection Considerations for Hollow Rotary Actuator
| Design and Selection Factor | Description |
|---|---|
| Load Capacity | The load capacity of the actuator should be selected based on the weight and size of the load and the required torque output. |
| Rotational Speed | The rotational speed of the actuator should be selected based on the application's requirements. |
| Resolution | The resolution of the actuator should be selected based on the required position accuracy. |
| Environmental Conditions | The actuator should be selected based on the environmental conditions of the application, such as temperature, humidity, and dust. |
| Mounting Requirements | The mounting requirements of the actuator should be selected based on the application's installation space and mounting method. |
Applications of Hollow Rotary Actuator
The Hollow Rotary Actuator has a wide range of applications in various fields, including:
1. Robotics
The Hollow Rotary Actuator is widely used in robotics, such as robot arms and joints, to achieve precise and continuous rotation.
2. Aerospace
The Hollow Rotary Actuator is used in aerospace equipment, such as satellite communication antennas, to achieve precise and stable positioning.
3. Medical Devices
The Hollow Rotary Actuator is used in medical devices, such as CT scanners and X-ray machines, to achieve accurate and stable positioning.
4. Military Equipment
The Hollow Rotary Actuator is used in military equipment, such as radar antennas and missile launchers, to achieve precise and stable positioning.
5. Optical Instruments
The Hollow Rotary Actuator is used in optical instruments, such as telescopes and cameras, to achieve precise and smooth rotation.
6. Industrial Automation
The Hollow Rotary Actuator is used in industrial automation, such as assembly lines and packaging machines, to achieve precise and efficient operation.

About Us
We are a modern enterprise that integrates research and development, design, manufacturing, sales, and service of professional servo electric cylinders and servo press equipment. Our company has a professional design team, processing team, assembly team, sales, and after-sales service team. We mainly develop and produce servo cylinders, servo presses, electric push rods, electric sliding tables, multi-degree-of-freedom platforms, and other servo stamping equipment. Our company always adheres to the principles of "integrity, sincerity, stability, and compliance," carefully designs, finely manufactures, produces exquisite products, and sincerely serves our customers.
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



