{"product_id":"heidenhain-lf-481-linear-encoder","title":"HEIDENHAIN LF 481 Linear Encoder","description":"\u003cp style=\"font-size: 12px; color: #666;\"\u003eHEIDENHAIN LF 481 without and with mounting spar. Catalog photo.\u003c\/p\u003e\n\u003cp\u003eThe HEIDENHAIN LF 481 (also written LF481) is a linear encoder. If yours is giving trouble, Automation and Metrology can evaluate it before you commit to a replacement. We work on older encoders, including units that may no longer be available new.\u003c\/p\u003e\n\u003ch2 class=\"ami-md\" style=\"display: flex; align-items: center; gap: .55em; font-size: 17px; margin: 1em 0;\"\u003e\n\u003cspan style=\"flex: 0 0 auto; width: .6em; height: .6em; background: #c8102e; border-radius: 50%; box-shadow: 0 0 0 4px rgba(200,16,46,.18);\"\u003e\u003c\/span\u003e\u003cspan\u003ewe specialize in \u003cstrong style=\"font-size: 1.5em; font-weight: 800; color: #c8102e;\"\u003emachine down\u003c\/strong\u003e linear encoder repair or replacement\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow it works:\u003c\/strong\u003e Send us your scale for a free evaluation. We will give you a repair quote quickly, before work starts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e Rush repairs typically take 1-2 days; standard repairs typically take 1-2 weeks. We will confirm the timing for your unit with the quote. If repair is not practical, we can help identify a suitable current HEIDENHAIN replacement.\u003c\/p\u003e\n\u003ch2\u003eCatalog specifications\u003c\/h2\u003e\n\u003cp style=\"font-size: 13px; color: #555;\"\u003eFrom the HEIDENHAIN Linear Encoders for Numerically Controlled Machine Tools catalog, July 2010. The LF 481 has 1 or 2 fixed reference marks as listed. The LF 481C has distance-coded reference marks; see its own page. Values are catalog values for this model; confirm your unit's configuration from its ID tag.\u003c\/p\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; vertical-align: top; padding: 6px 10px; border: 1px solid #ddd; background: #f6f6f6; width: 34%;\"\u003eAccuracy grade\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e±3 µm; ±5 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; vertical-align: top; padding: 6px 10px; border: 1px solid #ddd; background: #f6f6f6; width: 34%;\"\u003eMeasuring lengths (mm)\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e50, 100, 150, 200, 250, 300, 350, 400, 450, 500, 550, 600, 650, 700, 750, 800, 900, 1000, 1120, 1220 (mounting spar recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; vertical-align: top; padding: 6px 10px; border: 1px solid #ddd; background: #f6f6f6; width: 34%;\"\u003eReference marks (LF 481)\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003eML 50 mm: 1 at midpoint; ML 100 to 1000 mm: 2, located 25 mm from the beginning and end of the measuring length; from ML 1120 mm: 2, located 35 mm from the beginning and end\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; vertical-align: top; padding: 6px 10px; border: 1px solid #ddd; background: #f6f6f6; width: 34%;\"\u003eExpansion coefficient\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e10 x 10-6 K-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; vertical-align: top; padding: 6px 10px; border: 1px solid #ddd; background: #f6f6f6; width: 34%;\"\u003eTraversing speed\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003eUp to 30 m\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; vertical-align: top; padding: 6px 10px; border: 1px solid #ddd; background: #f6f6f6; width: 34%;\"\u003eRequired moving force\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003eUp to 5 N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; vertical-align: top; padding: 6px 10px; border: 1px solid #ddd; background: #f6f6f6; width: 34%;\"\u003eVibration 55 to 2000 Hz\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003eUp to 80 m\/s² (IEC 60 068-2-6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; vertical-align: top; padding: 6px 10px; border: 1px solid #ddd; background: #f6f6f6; width: 34%;\"\u003eShock (11 ms)\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003eUp to 100 m\/s² (IEC 60 068-2-27)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; vertical-align: top; padding: 6px 10px; border: 1px solid #ddd; background: #f6f6f6; width: 34%;\"\u003eAcceleration\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003eUp to 30 m\/s² in measuring direction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; vertical-align: top; padding: 6px 10px; border: 1px solid #ddd; background: #f6f6f6; width: 34%;\"\u003eWeight (without mounting spar)\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e0.4 kg + 0.5 kg\/m measuring length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; vertical-align: top; padding: 6px 10px; border: 1px solid #ddd; background: #f6f6f6; width: 34%;\"\u003eMeasuring standard\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003eDIADUR phase grating on steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; vertical-align: top; padding: 6px 10px; border: 1px solid #ddd; background: #f6f6f6; width: 34%;\"\u003eIncremental signals\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003eAbout 1 VPP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; vertical-align: top; padding: 6px 10px; border: 1px solid #ddd; background: #f6f6f6; width: 34%;\"\u003eGrating period \/ signal period\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e8 µm \/ 4 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; vertical-align: top; padding: 6px 10px; border: 1px solid #ddd; background: #f6f6f6; width: 34%;\"\u003eCutoff frequency (–3 dB)\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003eAt least 200 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; vertical-align: top; padding: 6px 10px; border: 1px solid #ddd; background: #f6f6f6; width: 34%;\"\u003ePower supply (without load)\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e5 V ±5 % \/ less than 200 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; vertical-align: top; padding: 6px 10px; border: 1px solid #ddd; background: #f6f6f6; width: 34%;\"\u003eElectrical connection\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003eSeparate adapter cable (1 m\/3 m\/6 m\/9 m) connectable to mounting block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; vertical-align: top; padding: 6px 10px; border: 1px solid #ddd; background: #f6f6f6; width: 34%;\"\u003eCable length (HEIDENHAIN cable)\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003eUp to 150 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; vertical-align: top; padding: 6px 10px; border: 1px solid #ddd; background: #f6f6f6; width: 34%;\"\u003eProtection (IEC 60 529)\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003eIP 53 when mounted according to the mounting instructions; IP 64 if compressed air is connected via DA 300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; vertical-align: top; padding: 6px 10px; border: 1px solid #ddd; background: #f6f6f6; width: 34%;\"\u003eOperating temperature\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e0 °C to 50 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/auto-met.com\/cdn\/shop\/files\/158-AMI-HEIDENHAIN-LF-481-LF-481C-Spec-Sheet.pdf\"\u003eHEIDENHAIN spec sheet, LF 481 \/ LF 481C (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/auto-met.com\/cdn\/shop\/files\/173-AMI-HEIDENHAIN-Linear-Encoders-Catalog-2010.pdf\"\u003eHEIDENHAIN linear encoders catalog, 2010 (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePlease send the full model and ID number from the unit's label, plus its measuring length and connector details, so we can check the right configuration. Do not assume a similar model is a drop-in replacement.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/contact\" style=\"display: inline-block; background: #c8102e; color: #fff; padding: 12px 20px; text-decoration: none;\"\u003eRequest a Quote\u003c\/a\u003e Or call 1-888-354-2525.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/repair-services\"\u003eEncoder repair services\u003c\/a\u003e\u003c\/p\u003e","brand":"HEIDENHAIN","offers":[{"title":"Default Title","offer_id":67637158052157,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/8222\/4189\/files\/107-HEIDENHAIN-LF-481-without-and-with-mounting-spar_b889b60c-25cf-4317-8981-768d89af9ce6.png?v=1791296331","url":"https:\/\/auto-met.com\/products\/heidenhain-lf-481-linear-encoder","provider":"Automation and Metrology, Inc.","version":"1.0","type":"link"}