SGLT Series

Balanced Iron-core coil and magnet track components

Iron core TW linear motors are composed of moving coils with a laminated iron-core and a pair of stationary magnet tracks that are placed on each side of the moving coils. The moving coil of the TW linear motor is composed of laminated iron core and prewound coil bobbins inserted into the slots located on the laminated iron cores. The entire coil unit is permanently encapsulated in a thermally conductive resin body to give structural rigidity. The magnet track of the TW is made of a row of rare earth magnets accurately placed on one side of the nickelized steel carrier plate. Two of the magnet carrier plates are used as a pair in a fashion similar to that of the coreless type linear motor. Stainless steel magnet covers guard against minor accidental damage to the magnets.

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Description

Ratings & Specifications

Features
Duty Rating: Continuous Ambient Humidity: 20 to 80% (non-condensing)
Insulation Resistance: 10MW minimum at 500VDC Cooling Method: Self/forced air
Motor Type: Sinusoidally commutated permanent magnet brushless linear motor Allowable Winding Temperature: 130ºC (Class B)
Ambient Temperature: 0 to 40ºC Insulation Dielectric Voltage: 1500VAC 1 min

 

Specification
Linear Servomotor Model Number
SGLTW-20A1
SGLTW-35A1
SGLTW-40A2
SGLTW-80A2
170A
320A
460A
170A
320A
460A
400A
600A
400A
600A
Continuous Output W
325
625
950
550
1100
1675
1675
2500
2600
4000
Continuous Force N
130
250
380
220
440
670
670
1000
1300
2000
Continuous Current ARMS
2.3
4.4
6.7
3.5
7
10.7
10.8
16.1
19.3
29.7
Peak Force N
380
760
1140
660
1320
2000
2000
3000
4000
6000
Peak Current ARMS
7.7
15.4
23.2
12.1
24.2
36.7
37.0
55.5
67.8
101.8
Moving Coil Mass kg
2.6
4.6
6.7
3.7
6.8
10.0
20.0
30.0
30.0
43.0
Force Constant N/ARMS
61.0
61.0
61.0
67.5
67.5
67.5
66.9
66.9
72.6
72.6
BEMF Constant V/(m/s)
20.3
20.3
20.3
22.5
22.5
22.5
22.3
22.3
24.2
24.2
Motor Constant N/ ÖW
18.7
26.5
32.3
26.7
37.5
46.4
64.1
76.6
89.7
105.4
Electrical Time Constant ms
5.9
5.9
5.9
6.9
6.8
7.0
17.8
16.5
19.3
16.6
Mechanical Time Constant ms
7.5
6.5
6.4
5.2
4.8
4.6
4.9
5.1
3.7
3.9
Thermal Resistance (with Heatsink) K/W
1.01
0.49
0.38
0.76
0.44
0.32
0.34
0.23
0.28
0.19
Thermal Resistance (without Heatsink) K/W
1.82
1.11
0.74
1.26
0.95
0.61
0.60
0.47
0.55
0.36
Magnetic Attraction Force N
0
0
0
0
0
0
0
0
0
0

Note: Values when the linear motor is combined with the SGDH Sigma II amplifier.

1These values are with aluminum heatsink (170A: 254x254x25mm, 320A/460A : 400x500x40mm) mounted to the motor coil.
2These values are with aluminum heatsink (609x762x50mm) mounted to the motor coil.

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