Product Description
Hollow shaft rotary actuators
KAH series hollow shaft rotary actuators
Main features
1.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.
2.It provides high torque output and torque density, for example, the torque of KAH-40 rotary actuator can reach 800N·m.
3.The positioning precision of rotary actuator is within 30 Arc sec.
4.An internal through hole is set to facilitate threading wires, gas pipe and laser beams and simplify system structure.
5.Dozens of product models are provided to meet diversified needs, and the products with 220 VAC, 110 VAC and 48 VAC voltages are available.
6.The high protection grade (IP67) makes the product applicable to severe working environment.
8.It can be used by matching with KDE series EtherCAT bus servo drives to realize ultra-low vibration controland reliable and stable operation. It provides an integrated drive control solution.
Applications
The products have been widely used in such fields as electronic and semiconductor equipment, precision machine tool, factory automation systems, precision laser processing device, LED equipment, detection device, medical apparatus and instruments, robot and special mechanical arm, printing machinery, spray painting equipment, glass processing equipment, precision measuring instrument and other fields.
Model
Specifications
| KAH-20 encoder Specification parameter |
| Series |
KAH-20 |
| Model KAH-20 |
20A |
20B |
20C |
20D |
20E |
| Deceleration ratio |
1:51 |
1:81 |
1:101 |
1:121 |
1:161 |
| Maximum torque starting &stopping(N·M) |
69 |
91 |
102 |
108 |
113 |
| Instantaneous maximum torque(N·M) |
42 |
58 |
61 |
61 |
61 |
| AC voltage 220VAC |
Maximum speed |
RPM |
119.6 |
75.3 |
60.4 |
50.4 |
37.9 |
| Rated speed |
RPM |
60.8 |
38.3 |
30.7 |
25.6 |
19.3 |
| Maximum current |
Arms |
4.53 |
3.89 |
3.41 |
2.78 |
2.21 |
| Rated current |
Arms |
2.12 |
1.85 |
1.56 |
1.3 |
0.98 |
| Torque constant |
N·M/Arms |
19.81 |
31.35 |
39.10 |
46.92 |
62.24 |
| Motor phase resistance |
Ohms |
2.135 |
| Motor phase inductance |
mH |
3.869 |
| Motor Back EMF |
Vrms/kRPM |
30.66 |
| AC voltage 1100VAC |
Maximum speed |
RPM |
100 |
63.0 |
50.5 |
42.1 |
31.7 |
| Rated speed |
RPM |
60.8 |
38.3 |
30.7 |
25.6 |
19.3 |
| Maximum current |
Arms |
9.49 |
7.87 |
7.08 |
6.25 |
4.91 |
| Rated current |
Arms |
4.28 |
3.72 |
3.14 |
2.62 |
1.97 |
| Torque constant |
N·M/Arms |
9.82 |
15.61 |
19.45 |
23.32 |
31.04 |
| Motor phase resistance |
Ohms |
1.036 |
| Motor phase inductance |
mH |
1.684 |
| Motor Back EMF |
Vrms/kRPM |
14.79 |
| AC voltage 480VAC |
Maximum speed |
RPM |
78.4 |
49.4 |
39.6 |
33.1 |
24.8 |
| Rated speed |
RPM |
60.8 |
38.3 |
30.7 |
25.6 |
19.3 |
| Maximum current |
Arms |
17.89 |
18.86 |
13.33 |
11.79 |
9.27 |
| Rated current |
Arms |
10.88 |
12.03 |
7.97 |
6.66 |
5.03 |
| Torque constant |
N·M/Arms |
3.86 |
4.82 |
7.65 |
9.16 |
12.19 |
| Motor phase resistance |
Ohms |
0.262 |
| Motor phase inductance |
mH |
0.313 |
| Motor Back EMF |
Vrms/kRPM |
7.98 |
| Absolute Encoder |
Encoder Type |
Hollow absolute multiturn encoders ,Single-loop 19,22or24, multiturn16 |
| Encoder resolution Motor(1time)rotation |
219(524,288),222(4,194.304)or224(16777216) |
| Motor multiple rotation counter |
215(65.536) |
| Incremental |
Encoder resolution |
Hollow incremental encoder,40000impulse/rpm(4 time signal) |
| encoder |
Output shaft resolution |
pulse/rev |
2040000 |
3240000 |
4040000 |
4840000 |
6440000 |
| uniderection positioning accuracy |
Arc Sec |
60 |
40 |
40 |
40 |
40 |
| Bidirectional positioning accuracy |
Arc Min |
2 |
1.5 |
1 |
1 |
1 |
| Overturning stiffness |
×104 N·m /rad |
22.5 |
27.3 |
| Torsional stiffness |
×104 N·m /rad |
1.8 |
2.3 |
| Moment of inertia |
without Brake |
Kg*m2 |
0.19 |
0.57 |
0.86 |
1.23 |
2.18 |
| with Brake |
Kg*m2 |
0.22 |
0.63 |
0.95 |
1.35 |
2.35 |
| Weight |
without Brake |
Kg |
2.2 |
| with Brake |
Kg |
2.5 |
| Motor Grade |
16 |
| Motor insulation |
Heat resistance grade :F(155ºC) |
| Insulation resistance:above200MΩ(DC500V) |
| Dielectric Strength:AC1500V/1min |
| Protection grade |
Fully closed self cooling type(IP65/IP67 degree) |
Photos
KAH series hollow shaft rotary actuators
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