Products
Downloads Login
SM 20 Shaft Linear Motor
- Built-in encoder
- Ideal for Z-axis
- Small cross-section
- Control mode switching function available
Specifications
Performance
|
MOTOR MODEL |
|
SM20-40 |
SM20-80 |
SM20-120 |
SM20-160 |
SM20-220 |
|
Stroke |
mm |
40 |
80 |
120 |
160 |
220 |
|
Peak Force |
N |
27.6 |
27.6 |
27.6 |
27.6 |
27.6 |
|
Continuous Force1 |
N |
9.2 |
9.2 |
9.2 |
9.2 |
9.2 |
|
Acceleration5 |
m/s2 |
93.9 |
65.7 |
54.8 |
46.0 |
36.8 |
|
Speed5 6 |
m/s |
2.0 |
2.4 |
2.8 |
2.9 |
3.0 |
|
Repeatability4 |
μm |
100 |
100 |
100 |
100 |
100 |
|
Precision |
μm |
500 |
600 |
700 |
800 |
900 |
Electrical
|
MOTOR MODEL |
|
SM20-40 |
SM20-80 |
SM20-120 |
SM20-160 |
SM20-220 |
|
Peak Current1 2 |
A rms |
2.37 |
2.37 |
2.37 |
2.37 |
2.37 |
|
Continuous Current1 |
A rms |
0.79 |
0.79 |
0.79 |
0.79 |
0.79 |
|
Force Constant3 |
N/Arms |
11.64 |
11.64 |
11.64 |
11.64 |
11.64 |
|
Back EMF |
V/ms-1 |
9.5 |
9.5 |
9.5 |
9.5 |
9.5 |
|
Resistance 25°C |
ohms |
10.83 |
10.83 |
10.83 |
10.83 |
10.83 |
|
Inductance |
mH |
1125 |
1125 |
1125 |
1125 |
1125 |
Thermal
|
MOTOR MODEL |
|
SM20-40 |
SM20-80 |
SM20-120 |
SM20-160 |
SM20-220 |
|
Thermal Resistance |
K / W |
3.1 / 9.3 |
3.1 / 9.3 |
3.1 / 9.3 |
3.1 / 9.3 |
3.1 / 9.3 |
|
Thermal Time Constant |
s |
30 / 1200 |
30 / 1200 |
30 / 1200 |
30 / 1200 |
30 / 1200 |
|
Operating Temperature |
°C |
-20…+125 |
-20…+125 |
-20…+125 |
-20…+125 |
-20…+125 |
Mechanical
|
MOTOR MODEL |
|
SM20-40 |
SM20-80 |
SM20-120 |
SM20-160 |
SM20-220 |
|
Rod Weight7 |
kg |
0.098 |
0.14 |
0.168 |
0.200 |
0.250 |
|
Total Weight7 |
kg |
0.236 |
0.278 |
0.306 |
0.338 |
0.288 |
|
Magnetic Pitch |
mm |
24 |
24 |
24 |
24 |
24 |
Additional Notes:
1) Thermal resistance Rth 2 by 55% reduced
2) For max. 1 second with a duty cycle of 10%
3) With sine wave commutation
4) Typical values with integrated linear Hall sensors (sin/cos) and Motion Controller Elmo "Whistle" SOL-WHI2.5/60I01. The values depend on conditions of use
5) Theoretical value, referring only to the motor
6) With a triangular speed profile and the max. stroke
7) Rounded value, for reference only
· These motors are for operation with DC-voltage < 75 V DC.
· The given values are for free standing motors.
· The mounting with magnetic conductive metal can influence the characteristics of the motor.
· For more information about drive electronics, please contact your local sales representative.
Note: specifications are subject to change without prior notice
Part Numbering System
SM12 – 20
|
|
|
SM Series |
||
|
SM |
12-20 |
|
|
SM |
12-40 |
|
|
SM |
12-60 |
|
|
SM |
12-80 |
|
|
SM |
12-100 |
|
|
SM |
12-120 |
|
|
SM |
20-40 |
|
|
SM |
20-80 |
|
|
SM |
20-120 |
|
|
SM |
20-160 |
|
|
SM |
20-220 |
|
