Product Specifications
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Model Number: LC 491F/50NM
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Manufacturer: HEIDENHAIN
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Encoder Type: Absolute linear encoder
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Measuring Length: Varies by order (standard lengths available)
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Grating Period: 50 nm
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Output Signal: EnDat 2.2 (digital interface)
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Accuracy: ±5 µm or better (depending on configuration)
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Protection Class: IP53 (standard), IP64 with sealing air
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Power Supply: 3.6–14 V DC
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Housing: Extruded aluminum profile
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Mounting: Guided mounting with tensioning elements
Key Features
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Absolute position measurement with 50 nm resolution for ultra-precise control
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Integrated EnDat 2.2 digital interface for seamless CNC integration
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Sealed housing design with optional air purge for high contamination resistance
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Temperature- and vibration-resistant for use in harsh environments
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Compact form factor with robust mounting system
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Ideal for high-speed machining and ultra-precise positioning systems
Applications
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High-performance CNC milling and turning machines
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Precision coordinate measuring machines (CMMs)
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Automated semiconductor and electronics manufacturing
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N/C controlled motion systems in aerospace and medical tooling
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Linear axes requiring absolute feedback and minimal downtime
Alternative model numbers include: LC491F-50NM, HEIDENHAIN LC491F EnDat, LC 491F/50NM Encoder, LC491F50NM, LC491F EnDat 2.2
Common misspellings include: LC 491 F/50NM, HEIDENHAIN LC-491F, LC491-F/50NM, LC491F/5ONM, HEIDENHAIN LC491F50MM