Hollow Shaft Rotary Actuator

Hollow Shaft Rotary Actuator

KAH series hollow shaft rotary actuator provides large-torque and high-precision rotary actuation. With integrated design, processing and assembly technique, it is provided with high precision speed reducer, framework torque motor, hollow shaft high resolution absolute encoder, brake and intelligent sensor. It provides high torque output and torque density, for example, the torque of KAH-40 rotary actuator can reach 800N·m. The positioning precision of rotary actuator is within 30 Arc sec. An internal through hole is set to facilitate threading wires, gas pipe and laser beams and simplify system structure.
Product Details


Applications:

KAH hollow rotary actuators are widely used in: electronic and semiconductor equipment, precision CNC machine tools, 3C equipment, precision laser processing equipment, LED equipment, testing equipment, medical equipment, robots and special robotic arms, printing machinery, inkjet equipment, glass processing equipment, precision measuring instruments, etc. field.

Product details:

High accuracy: The absolute positioning accuracy up to 10 arc seconds (0.0028 degrees).
Large torque: Small size, large torque; output torque up to 800 Nm.
Hollow Hole: Large-aperture internal threading hole for easy passage of cables, gas camps, laser beams, etc.
Long life: The accuracy remains unchanged after use for more than 20,000 hours.
Zero backlash: Harmonic drive with zero backlash.
Integration: Integrated strain wave gear harmonic reducer, torque motor, electromagnetic brake, encoder, and driver.
Fast response: Excellent dynamic response performance; ideal for laser processing, and automation equipment.
Low vibration: Extremely low vibration and noise; the best choice for applications such as semiconductors and medical imaging equipment.
High protection standards: Up to IP67 protection level.
Maintenance-free: No need for regular maintenance; no need to change grease, etc.

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Application Of Actuator In Automation Industry ---- CNC Machine

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Working conditions: 

Load ≦ 20KG, Output speed: 5-10r/min


Attention:

1. This product is integrated with a harmonic drive, which has high operation accuracy, but its load is limited, which couldn't be exceeded.

2. Encoder and motor are integrated, which can adapt to most of the control systems on the market and support a variety of communication protocols.

3. The environment temperature is - 10 ~ 40 ℃, the humidity is below 85%, and the ventilation is good. Although it has the protection grade of IP65, it is not suitable for the place where the liquid is sprayed directly.

 

Advantages:

The traditional dividing plate is driven by the planetary reducer. Although the planetary reducer is cheap and can reduce the cost of the whole machine, the accuracy and accuracy maintenance ability of the dividing disc of the planetary reducer has gradually failed to meet the increasingly high processing requirements of the industry. The all-in-one actuator integrated by Y-series harmonic drive, frameless torque motor, and encoder developed by our company for machine tool and machining center industry is adopted to solve the problem of substandard accuracy. It has the advantages of a compact and hollow structure, easy cable passing, and high torque output. The protection level is up to IP67 and could match a variety of communication protocols. Moreover, compared with the common harmonic drive, the Y-series has high stiffness and a service life of more than 20000 hours.

 

Future trend:

Our actuators are widely used in electronic and semiconductor equipment, precision CNC machine tools, precision laser processing equipment, testing equipment, medical equipment, printing machinery, glass processing equipment, precision measuring instruments, and other fields. In recent ten years, due to the strong support of the state for the machining industry and the drive of the manufacturing industry, the CNC machine tool industry has developed rapidly. Large scale, high speed, and high precision have become the mainstream of CNC machine tools. The technology of key components of the machining center is also higher and higher. The traditional linear axis machining changes to five-axis rotary machining.

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