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L1A Series

L1A Linear Motors

Series Introduction

The L1A is a flat type linear motor with an installation height of only 31 mm, making it very compact with an excellent force-to-mass ratio. Available in two length specifications (100 mm and 200 mm) and three widths (25, 50, 75 mm), it is suitable for high-precision positioning applications with strict installation space constraints.

Dimensional Drawing

Cable Connection Version

L1A Cable Connection Dimensional Drawing
L1A Cable Connection Product Photo

Terminal Version

L1A Terminal Dimensional Drawing
L1A Terminal Product Photo

L1A-3P-100-B Technical Data

Technical Data I — Mechanical Parameters

Parameter Symbol Unit 100-25-WM 100-50-WM 100-75-WM
Primary Part
Length L1 mm 113 113 113
Width B1 mm 57 82 107
Height H1 mm 20.2 20.2 20.2
Mass m1 kg 0.5 0.8 1.2
M5 threaded holes (L x W) — — 3 x 1 3 x 2 3 x 2
M5 thread pitch/length nl x c1 mm 2 x 31.5 2 x 31.5 2 x 31.5
M5 thread pitch/width nb x b1 mm — 1 x 30 1 x 55
Motor cable diameter dK mm 7.3 7.3 7.3
Secondary Part — Through Hole (variant 2)
Width B2 mm 50 80 100
Mass (length 38/152) m2 kg/unit 0.11/0.44 0.19/0.76 0.24/0.96
Magnetic base height h2 mm 6 6 6
Height H2 mm 10 10 10
Through hole (screw M5 DIN 6912) b3 mm 37 62 87
Secondary Part — Threaded Hole (variant 1)
Width B2 mm 30 50 80
Mass (length 38/152) m2 kg/unit 0.076/0.30 0.13/0.52 0.21/0.84
Magnetic base height h2 mm 6 6 6
Height H2 mm 10 10 10
M5 threaded hole (from below) b2 mm 15 30 55
Installation Dimensions
Total height PRIM + SEK H mm 31 -0.1 31 -0.1 31 -0.1
Mechanical air gap d mm approx. 0.8 approx. 0.8 approx. 0.8
Maximum width B mm 57 82 107
Secondary part length (38 mm grid) L2 mm L1 + stroke L1 + stroke L1 + stroke
Cable length LK mm ≈ 1000 ≈ 1000 ≈ 1000

Technical Data II — Electrical Performance Data

Parameter Symbol Unit 100-25-WM 100-50-WM 100-75-WM
Limit force (Iu) Fu N 199 398 594
Peak force (saturation) (Ip) Fp N 169 338 505
Peak force (linear) (Ipl) Fpl N 117 235 351
Continuous force (Ic) Fc N 37 81 116
Power loss (Ip, 25 °C) Plp W 469 682 895
Power loss (Ipl, 25 °C) Plpl W 163 238 312
Power loss (Ic, 25 °C) Plc W 17 28 34
Motor constant (25 °C) km N/√W 9.2 15.2 19.9
Damping constant (short circuit) kd N/(m/s) 84 232 394
Electrical time constant τel ms 2.75 3.78 4.32
Attraction force Fa N 584 1168 1752
Force ripple (typical cogging) Fr N 6 12 18
Pole pair width 2τp mm 38 38 38
L1A-3P-100-B Performance Characteristic Curves

L1A-3P-100-B Force-Speed (F-v) and Force-Current (F-I) characteristic curves

The achievable speed limit depends on operating voltage (UDCL) and current (force). The diagram shows the idealised envelope with the key operating points at peak current (Fp, vlim) and at idle (Fo, v0).

Technical Data III — Winding Data

Parameter Symbol Unit 100-25-WM 100-50-WM 100-75-WM
Force constant kf N/Arms 17.4 34.9 52.1
Back EMF constant (phase-to-phase) ku V/(m/s) 14.3 28.5 42.6
Limit speed (Ip, UDCL=300 VDC) vlim m/s 13.0 6.0 3.8
Limit speed (Ip, UDCL=600 VDC) vlim m/s 27.3 13.2 8.6
Resistance (phase-to-phase, 25 °C) R25 Ω 2.40 3.49 4.58
Inductance (phase-to-phase) L mH 6.60 13.20 19.80
Limit current Iu Arms 14.3 14.3 14.3
Peak current (saturation) Ip Arms 11.4 11.4 11.4
Peak current (linear) Ipl Arms 6.7 6.7 6.7
Continuous current Ic Arms 2.1 2.3 2.2
Permissible temperature (at sensor) θ °C 100 100 100
Maximum DC bus voltage UDCL V 600 600 600
L1A-3P-100-B Winding Characteristic

L1A-3P-100-B winding parameter characteristic

Note: The winding variant WM (standard) described above is suitable for moderately dynamic performance requirements. The winding variants WL and WH suitable for lower and higher dynamic performance requirements are available upon request. The integrated temperature sensors do not display the exact winding temperature. Depending on current load, the winding temperature may be up to approx. 30 K higher.

L1A-3P-200-B Technical Data

Technical Data I — Mechanical Parameters

Parameter Symbol Unit 200-25-WM 200-50-WM 200-75-WM
Primary Part
Length L1 mm 208 208 208
Width B1 mm 57 82 107
Height H1 mm 20.2 20.2 20.2
Mass m1 kg 0.9 1.6 2.2
M5 threaded holes (L x W) — — 6 x 1 6 x 2 6 x 2
M5 thread pitch/length nl x c1 mm 5 x 31.5 5 x 31.5 5 x 31.5
M5 thread pitch/width nb x b1 mm — 1 x 30 1 x 55
Motor cable diameter dK mm 7.3 7.3 7.3
Secondary Part — Through Hole (variant 2)
Width B2 mm 50 80 100
Mass (length 38/152) m2 kg/unit 0.11/0.44 0.19/0.76 0.24/0.96
Magnetic base height h2 mm 6 6 6
Height H2 mm 10 10 10
Through hole (screw M5 DIN 6912) b3 mm 37 62 87
Secondary Part — Threaded Hole (variant 1)
Width B2 mm 30 50 80
Mass (length 38/152) m2 kg/unit 0.076/0.30 0.13/0.52 0.21/0.84
Magnetic base height h2 mm 6 6 6
Height H2 mm 10 10 10
M5 threaded hole (from below) b2 mm 15 30 55
Installation Dimensions
Total height PRIM + SEK H mm 31 -0.1 31 -0.1 31 -0.1
Mechanical air gap d mm approx. 0.8 approx. 0.8 approx. 0.8
Maximum width B mm 57 82 107
Secondary part length (38 mm grid) L2 mm L1 + stroke L1 + stroke L1 + stroke
Cable length LK mm ≈ 1000 ≈ 1000 ≈ 1000

Technical Data II — Electrical Performance Data

Parameter Symbol Unit 200-25-WM 200-50-WM 200-75-WM
Limit force (Iu) Fu N 398 796 1188
Peak force (saturation) (Ip) Fp N 338 677 1010
Peak force (linear) (Ipl) Fpl N 235 470 701
Continuous force (Ic) Fc N 72 148 225
Power loss (Ip, 25 °C) Plp W 938 1364 1774
Power loss (Ipl, 25 °C) Plpl W 327 475 618
Power loss (Ic, 25 °C) Plc W 31 47 64
Motor constant (25 °C) km N/√W 13.0 21.6 28.2
Damping constant (short circuit) kd N/(m/s) 169 465 796
Electrical time constant τel ms 2.99 4.11 4.74
Attraction force Fa N 1128 2256 3383
Force ripple (typical cogging) Fr N 7 14 21
Pole pair width 2τp mm 38 38 38
L1A-3P-200-B Performance Characteristic Curves

L1A-3P-200-B Force-Speed (F-v) and Force-Current (F-I) characteristic curves

The achievable speed limit depends on operating voltage (UDCL) and current (force). The diagram shows the idealised envelope with the key operating points at peak current (Fp, vlim) and at idle (Fo, v0).

Technical Data III — Winding Data

Parameter Symbol Unit 200-25-WM 200-50-WM 200-75-WM
Force constant kf N/Arms 34.9 69.8 75.0
Back EMF constant (phase-to-phase) ku V/(m/s) 28.5 57.1 61.4
Limit speed (Ip, UDCL=300 VDC) vlim m/s 5.5 2.3 2.2
Limit speed (Ip, UDCL=600 VDC) vlim m/s 12.7 5.9 5.6
Resistance (phase-to-phase, 25 °C) R25 Ω 4.80 6.98 4.72
Inductance (phase-to-phase) L mH 14.35 28.70 22.36
Limit current Iu Arms 14.3 14.3 19.8
Peak current (saturation) Ip Arms 11.4 11.4 15.8
Peak current (linear) Ipl Arms 6.7 6.7 9.3
Continuous current Ic Arms 2.1 2.1 3.0
Permissible temperature (at sensor) θ °C 100 100 100
Maximum DC bus voltage UDCL V 600 600 600
L1A-3P-200-B Winding Characteristic

L1A-3P-200-B winding parameter characteristic

Note: The winding variant WM (standard) described above is suitable for moderately dynamic performance requirements. The winding variants WL and WH suitable for lower and higher dynamic performance requirements are available upon request. The integrated temperature sensors do not display the exact winding temperature. Depending on current load, the winding temperature may be up to approx. 30 K higher.

Subject to modification without previous notice.

General tolerance: all values ±5%

Tolerance for attraction force and force ripple: ±10%

Tolerance for resistance and inductance: ±10%

The size specified for the air gap d is an auxiliary dimension and may fluctuate. The only technically relevant dimension is the specified overall installation height H, which must be complied with.

A stainless steel cover can be ordered separately for the secondary parts (not included in the standard equipment).

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