SGLF Series

Iron-core coil and magnet track components

Iron core FW linear motors are composed of moving coils with laminated iron-core and single sided stationary magnet tracks. The moving coil of the FW 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 FW is made of a row of rare earth magnets accurately placed on one side of the nickelized steel carrier plate. Stainless steel magnet covers guard against minor accidental damage to the magnets.

SGLF Series Features Highlights

High winding space factor by concentrated windings (Factor approx. 70%)
Edge cogging is cancelled by magnetic force of sub-teeth
Magnetic attraction force between the moving and stationary members can be used effectively to increase the rigidity of the linear guidance system by pre-loading the linear motion bearings
Magnetic pre-loading on certain types of linear motion bearings can help increase the systems’s frequency response, improving its deceleration and settling performances
Compact profiles result in a low profile linear positioning systems

SGLF Series Specifications

Specification	Description
Duty Rating	Continuous
Insulation Resistance:	500VDC, 10MΩ minimum
Motor Type:	Sinusoidally commutated permanent magnet brushless linear motor
Ambient Temperature:	0 to 40ºC
Ambient Humidity	20 to 80% (non-condensing)
Cooling Method	Self
Allowable Winding Temperature	130ºC (Class B)
Insulation Dielectric Voltage	1500V_AC 1 min

SGLF Series Models & Ratings

Specification		Linear Servomotor Model Number
		SGLFW-20A¹		SGLFW-35A²		SGLFW-50A³		SGLFW-1ZA³
		090A	120A	120A	230A	200A	380A	200A	380A
Continuous Output	W	125	140	200	400	500	1000	1000	2000
Continuous Force	N	25	40	80	160	200	400	400	800
Continuous Current	A_RMS	0.7	0.8	1.4	2.8	3.2	6.3	5.7	14.4
Peak Force	N	86	125	220	440	600	1200	1200	2400
Peak Current	A_RMS	3.0	2.9	4.4	8.8	10.9	21.8	19.7	39.3
Moving Coil Mass	kg	0.7	0.9	1.3	2.3	3.7	6.9	6.40	11.5
Force Constant	N/A_RMS	36.0	54.0	62.4	62.4	67.9	67.9	75.3	75.3
BEMF Constant	V/(m/s)	12.0	18.0	20.8	20.8	22.6	22.6	25.1	25.1
Motor Constant	N/√W	7.9	9.8	14.4	20.4	29.3	41.1	44.6	62.4
Electrical Time Constant	ms	3.2	3.3	3.6	3.6	9.6	9.4	10.4	9.7
Mechanical Time Constant	ms	11.1	9.3	6.2	5.5	4.1	4.1	3.2	3
Thermal Resistance (with Heatsink)	K/W	4.35	3.19	1.57	0.96	1.12	0.46	0.82	0.39
Thermal Resistance (without Heatsink)	K/W	7.69	5.02	4.1	1.94	2.13	1.06	1.34	0.79
Magnetic Attraction Force	N	314	462	809	1586	2095	4144	4190	8289

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

¹These values are with aluminum heatsink (125x125x13mm) mounted to the motor coil.
²These values are with aluminum heatsink (254x254x25mm) mounted to the motor coil.
³These values are with aluminum heatsink (200A : 254x254x25mm, 380A : 400x500x40mm) mounted to the motor coil.