SERVOTUBE LINEAR MOTORS

The Servotube Linear Motor is physically like a conventional 3-phase brushless linear motor - with one difference: The magnets are potted into a round shaft, which runs thru the center of the winding assembly. This leads to a symmetrical design, which results in a balancing of the magnetical attraction forces. Another advantage of this mechanical arrangement is the enclosed housing so that IP67 is possible.

The biggest advantage of the Servotube Motor however is the integrated linear encoder: The magnets of the Servotube provide the scale for the precise analog hall sensors and the given position information is processed to the standard 1Vp-p industrial sine / cosine signal. Most of the modern servo amplifiers are able to read this position feedback.  This makes the Servotube linear motors to easy to use and very cost effective linear motors, which achieve a repeatability of up to +/-8µm (depending on size).

Mechanically the Servotube linear motors are used with conventional linear guiding systems. The comparably large airgap of about 1mm around the shaft allows an easy integration.

Modell 1104 1108 1112 1116 2504 2506 2508 2510 3804 3806 3808 3810
Dauerkraft
ohne Kühlkörper
N
6,02 10,83 15,18 19,28 42,5 59,5 75,1 90,0 120,1 168,2 212,7 255,0
Spitzenkraft
N
46 53 68,9 91,9 312 468 624 780 744 1.116 1.488 1.860
max. Geschwindigkeit
m/s
5,2 5,2 3,9 3,1 5,9 5,3 5,6 5,8 4,9 5,3 4,9 4,4
max. Beschleunigung
m/s^2
155 119 109 120 394 483 542 586 250 313 357 391
max. Hub
mm
372 321 269 218 1.180 1.129 1.078 1.027 1.362 1.291 1.219 1.148
Forcer B x H
mm
41+18 x 28 68+26 x 54 84+38 x 70
Forcer Länge
mm
124,1 175,3 226,5 277,4 188,5 239,5 290,5 341,5 258,0 329,0 400,0 471,0
Forcer Gewicht
kg
0,240 0,390 0,520 0,650 1,25 1,7 2,25 2,65 2,75 3,75 4,75 5,75
Wellendurchmesser
mm
11 25 38
Wellengewicht
kg/m
0,68 3,5 8,3

Model 1104 1108 1112 1116 2504 2506 2508 2510 3804 3806 3808 3810
cont. force
no cooling
N
6.02 10.83 15.18 19.28 42.5 59.5 75.1 90.0 120.1 168.2 212.7 255.0
peak force
N
46 53 68.9 91.9 312 468 624 780 744 1,116 1,488 1,860
max. velocity
m/s
5.2 5.2 3.9 3.1 5.9 5.3 5.6 5.8 4.9 5.3 4.9 4.4
max. acceleration
m/s^2
155 119 109 120 394 483 542 586 250 313 357 391
max. stroke
mm
372 321 269 218 1,180 1,129 1,078 1,027 1,362 1,291 1,219 1,148
Forcer B x H
mm
41+18 x 28 68+26 x 54 84+38 x 70
Forcer length
mm
124.1 175.3 226.5 277.4 188.5 239.5 290.5 341.5 258.0 329.0 400.0 471.0
Forcer weight
kg
0.240 0.390 0.520 0.650 1.25 1.7 2.25 2.65 2.75 3.75 4.75 5.75
shaft diameter
mm
11 25 38
shaft weight
kg/m
0.68 3.5 8.3