AL38xx | Ironless Linear Servomotors
In contrast to the AL2000 series, the linear motors from the AL3000 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
| Dimensions | b | la |
|---|---|---|
| AL3803 | 15 mm | 134 mm |
| AL3806 | 15 mm | 248 mm |
| AL3809 | 15 mm | 362 mm |
| AL3812 | 15 mm | 476 mm |
| AL3818 | 15 mm | 704 mm |
| Technical data | AL3803 | AL3806 | AL3809 |
|---|---|---|---|
| Winding type | N | S | ||
| Motor configuration | 3-phase synchronous Linear Motors 230V AC | ||
| Peak force 3 sec. (FP) | 700 N | 1400 N | 2100 N |
| Peak current (IP) | 5.6 A | 13.9 A | 11.3 A | 28 A | 16.9 A | 42 A |
| Continuous force with air cooling (Fca) | 104 N | 208 N | 312 N |
| Continuous current (Ic) | 1.14 A | 2.8 A | 2.27 A | 5.6 A | 3.4 A | 8.4 A |
| Continuous power loss (Pc) | 82 W | 165 W | 247 W |
| Force constant (Kf) | 124 N/A | 50,3 N/A | 124 N/A | 50.3 N/A | 124 N/A | 50.3 N/A |
| Motor constant (Km) | 323 N²/W | 647 N²/W | 970 N²/W |
| Speed max. | 2.7 m/s | 6.6 m/s | ||
| Magnet pitch | 57 mm | ||
| Winding resistance per phase (Rf) | 15.8 Ω | 2.6 Ω | 7.9 Ω | 1.29 Ω | 5.3 Ω | 0.86 Ω |
| Winding inductance per phase (Lf) | 28 mH | 4.6 mH | 14 mH | 2.3 mH | 9 mH | 1.5 mH |
| Thermal resistance (Rth) | 1.04 °C/W | 0.52 °C/W | 0.35 °C/W |
| 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 | ||
| Technical data | AL3812 | AL3818 |
|---|---|---|
| Winding type | N | S | N |
| Motor configuration | 3-phase synchronous Linear Motors 230V AC | |
| Peak force 3 sec. (FP) | 2800 N | 4200 N |
| Peak current (IP) | 22.6 A | 56 A | 34 A |
| Continuous force with air cooling (Fca) | 416 N | 624 N |
| Continuous current (Ic) | 4.5 A | 11.2 A | 6.8 A |
| Continuous power loss (Pc) | 330 W | 494 W |
| Force constant (Kf) | 124 N/A | 50.3 N/A | 124 N/A |
| Motor constant (Km) | 1293 N²/W | 1940 N²/W |
| Speed max. | 2.7 m/s | 6.6 m/s | 2.7 m/s |
| Magnet pitch | 57 mm | |
| Winding resistance per phase (Rf) | 4 Ω | 0.65 Ω | 2.6 Ω |
| Winding inductance per phase (Lf) | 7 mH | 1.2 mH | 4.7 mH |
| Thermal resistance (Rth) | 0.26 °C/W | 0.17 °C/W |
| Magnetic attraction force (Fa) | 0 N | |
| Weight of the coil (Mp) | 1.75 kg | 2.55 kg |
| Temperature sensor | PTC 1 kΩ | |
| Ordering information | AL38xx-0000 Primary section |
|---|---|
| AL3803-000z | Linear Servomotor, 230 V AC, FP= 700 N, FC=104 N |
| AL3806-000z | Linear Servomotor, 230 V AC, FP=1400 N, FC=208 N |
| AL3809-000z | Linear Servomotor, 230 V AC, FP=2100 N, FC=312 N |
| AL3812-000z | Linear Servomotor, 230 V AC, FP=2800 N, FC=416 N |
| AL3818-0000 | Linear Servomotor, 230 V AC, FP=4200 N, FC=624 N |
Option z = 0: N type, max. 2.7 m/s, z = 1: S type, max. 6.6 m/s
| Ordering information | AL39xx-0000 Secondary section |
|---|---|
| AL3910-0000 | magnet yoke (lb=114 mm, weight 25.5 kg/m) |
| AL3920-0000 | magnet yoke (lb=171 mm, weight 25.5 kg/m) |
| AL3930-0000 | magnet yoke (lb=456 mm, weight 25.5 kg/m) |