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L18
The L18 optical incremental linear encoder is a high-precision displacement measuring device offering measuring lengths up to 2,040 mm, grating periods of 20 µm or 40 µm, and accuracy grades down to ±3 µm. Its compact design, flexible reference mark options, and optional compressed-air sealing make it suitable for a wide range of industrial automation and machine-tool applications.
Key FeaturesÂ
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Measuring lengths up to 2,040 mm
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Accuracy grades: ±10 µm, ±5 µm, or ±3 µm (optional)
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Grating periods: 20 µm or 40 µm
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Multiple reference-mark configurations, including distance-coded
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High traversing speed up to 1 m/s
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Very low required moving force (< 3 N)
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Protection rating: IP53 standard, IP64 with compressed air
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Optional mounting spar (mandatory for ML ≥ 1,340 mm)
Mechanical Data Table
| Parameter | Specification |
|---|---|
| Measuring lengths (ML) | 70; 120; 170; 220; 270; 320; 370; 420; 520; 620; 720; 820; 920; 1020; 1140; 1240; 1340; 1440; 1540; 1640; 1740; 1840; 1940; 2040 (mounting spar optional up to ML 1240, mandatory from 1340 to 2040) |
| Accuracy grades (20°C) | ±10 µm; ±5 µm; ±3 µm (optional) |
| Grating period | 20 µm; 40 µm (optional) |
| Reference marks (RI) | ML ≤ 1020 mm: 35 mm from both ends; ML ≥ 1140 mm: 45 mm from both ends; optional single RI anywhere, or multiple RI’s (n × 50 mm), or distance-coded |
| Max. traversing speed | Interpolation 1/2/5/10: 1 m/s; Interpolation 25: 0.5 m/s; Interpolation 50: 0.4 m/s |
| Required moving force | < 3 N (with sealing lips) |
| Protection (IEC 529) | IP53 without compressed air; IP64 with compressed air |
| Weight | 0.4 kg + 0.8 kg/m |
| Operating temperature | 0…+50°C |
| Storage temperature | –20…+70°C |
| Permissible vibration (40–2000 Hz) | ≤ 30 m/s² |
