Main Features

n 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 harmonic drive reducer, frame-less torque motor, hollow shaft high resolution absolute encoder, brake and intelligent sensor.

n It provides high torque output and high torque density, for example, the torque of KAH-40 rotary actuator can reach 800N·m.

n The positioning precision of rotary actuator is within 30 Arc sec.

n An internal through-hole is set to facilitate threading of wires, gas pipe and laser beams, which simplify the system structure.

n Dozens of product models are provided to meet diversified needs, and the products with 220 VAC, 110VAC and 48 VAC voltages are available.

n High protection grade (IP67) makes the product applicable to severe working environment.

n It can be used by matching with KDE series EtherCAT Bus Servo Drivers to realize ultra-low vibration control and reliable stable operation, through which offers an integrated drive control solution to customers.

Application Areas

KAH series rotary actuators have been widely used in many industrial fields, such as electronic and semiconductor equipment, precision machine tools, factory automation systems, precision laser processing devices, LED equipment, detection device, medical devices and instruments, industrial robots, printing machines, spraying machines, glass processing equipment, precision measuring instruments and so on.

Modeling Rules

① Product Series

KAH series Hollow Shaft Rotary Actuators

② Specification code of Harmonic reducer

Harmonic reducer model：14，17，20，25，32，40

③ Reduction ratio of harmonic reducer

A: Reduction ratio 51:1

B: Reduction ratio 81:1

C: Reduction ratio 101:1

D: Reduction ratio 121:1 （not suitable for model 14）

E: Reduction ratio 161:1 （not suitable for model 14 or 17）

④ Motor Voltage

M：AC Voltage 220VAC

N：AC Voltage 110VAC

L：DC bus Voltage 48VDC

⑤ Motor encoder

1：Multi-turn hollow shaft absolute encoder, single-turn 19 bit/multi-turn 16 bit

2：Multi-turn hollow shaft absolute encoder, single-turn 22 bit/multi-turn 16 bit

3: Multi-turn hollow shaft absolute encoder, single-turn 24 bit/multi-turn 16 bit

4：Hollow shaft incremental encoder, 10000P/R

5：Hollow shaft incremental encoder, 2500P/R

⑥ Motor shaft brake

N：without brake

B：with brake

⑦ Other options

E：cables are taken out from rear

S: cables are taken out from side

Models Choice

Currently, all models of KAH series Hollow Shaft Rotary Actuators can be offered as below: KAH-14, KAH-17, KAH-20, KAH-25, KAH-32, KAH-40.