AL38xx | Ironless Linear Servomotors

In contrast to the AL2xxx series, the linear motors from the AL3xxx series have no iron core. This has the advantage that the coil part is not attracted by the permanent magnets and that cogging, i.e. the occurrence of cogging thrust due to magnetic forces between the permanent magnets and the iron core, is avoided. The benefits of ironless linear motors are particularly significant in semiconductor and plasma/LCD panel production, where highly synchronous operation and positioning quality are required. The lack of an iron core has the additional benefit of reduced weight and inductance of the coil part, leading to improved dynamics. Overall, an ironless linear motor is therefore the ideal drive, because it generates no interfering side effects in addition to the direct, backlash-free connection with the load. This enables the control loop gain to be set significantly higher in order to achieve the required positioning accuracy.

 

Features

• absolutely stiff, backlash-free coupling of load and motor
• no cogging, highly synchronous operation
• high dynamics through low inductance
• high dynamics through lower weight of the coil part
• high force density
• direct, fast force generation, thereby no position overshoot
• significantly higher positioning accuracy through high control loop gain possible
• maintenance-free drive, no abrasion, no wear, ideal for cleanroom applications
• maximum velocity 2.7 m/s (N type) or 6.6 m/s (S type)

Dimensions	la
AL3803	134 mm
AL3806	248 mm
AL3809	362 mm
AL3812	476 mm
AL3818	704 mm

Technical data	AL3803	AL3806	AL3809
Winding type	N | S
Max. speed	2.7 m/s (N), 6.6 m/s (S)
Motor configuration	3-phase synchronous Linear Motors 230 V AC
Peak force (FP)	700 N	1400 N	2100 N
Peak current (IPa)	5.6 A (N), 13.9 A (S)	11.3 A (N), 28 A (S)	16.9 A (N), 42 A (S)
Continuous force with air cooling (Fca)	141 N	282 N	423 N
Continuous current with air cooling (Ica)	1.14 A (N), 2.8 A (S)	2.27 A (N), 5.6 A (S)	3.4 A (N), 8.4 A (S)
Force constant (Kf)	124 N/A (N), 50.3 N/A (S)
Motor constant (Km)	323 N²/W	647 N²/W	970 N²/W
Magnet pitch	57 mm
Magnetic attraction force (Fa)	0 N
Weight of the coil (Mp)	0.55 kg	0.95 kg	1.35 kg
Temperature sensor	PTC 1 kΩ
Corresponding Servo Drive	AX5x03 (N), AX5x06* (S)	AX5x06 (N), AX5112 (S)	AX5112 (N), AX5125 (S)

Technical data	AL3812	AL3818
Winding type	N | S	N
Max. speed	2.7 m/s (N), 6.6 m/s (S)	2.7 m/s
Motor configuration	3-phase synchronous Linear Motors 230 V AC
Peak force (FP)	2800 N	4200 N
Peak current (IPa)	22.6 A (N), 56 A (S)	34 A
Continuous force with air cooling (Fca)	564 N	846 N
Continuous current with air cooling (Ica)	4.5 A (N), 11.2 A (S)	6.8 A
Force constant (Kf)	124 N/A (N), 50.3 N/A (S)	124 N/A
Motor constant (Km)	1293 N²/W	1940 N²/W
Magnet pitch	57 mm
Magnetic attraction force (Fa)	0 N
Weight of the coil (Mp)	1.75 kg	2.55 kg
Temperature sensor	PTC 1 kΩ
Corresponding Servo Drive	AX5112 (N), AX5125* (S)	AX5118

Ordering information	AL38xx-000x-0000 coil unit
AL3803-000x-0000	Linear Servomotor, 230 V AC, Fp = 700 N, Fc = 141 N
AL3806-000x-0000	Linear Servomotor, 230 V AC, Fp = 1400 N, Fc = 282 N
AL3809-000x-0000	Linear Servomotor, 230 V AC, Fp = 2100 N, Fc = 423 N
AL3812-000x-0000	Linear Servomotor, 230 V AC, Fp  = 2800 N, Fc = 546 N
AL3818-0000-0000	Linear Servomotor, 230 V AC, Fp = 4200 N, Fc = 846 N

Option x = 0: N type, max. 2.7 m/s, x = 1: S type, max. 6.6 m/s;

Motors only available without connector plug

Ordering information	AL39xx-0000 magnet yoke
AL3910-0000	magnetic assembly (lb = 114 mm, weight 25.5 kg/m), for AL38xx motors
AL3920-0000	magnetic assembly (lb = 171 mm, weight 25.5 kg/m), for AL38xx motors
AL3930-0000	magnetic assembly (lb = 456 mm, weight 25.5 kg/m), for AL38xx motors