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Product description

Heidenhain 557644-19 is an absolute sealed linear encoder from the LC 493F series with a measuring length of 1140 mm. The unit uses the Fanuc02 serial interface for position feedback in compatible CNC machining centres, grinding machines and milling machines. Its accuracy class is ±5.0 µm, and the measuring step is 50 nm. The compact LC 493F profile supports installation where machine space is limited; its housing adds 138 mm beyond the measuring length for installation planning. A graduation period of 20,000 µm and absolute position acquisition eliminate the need for a reference run after the control is switched on. The housing is rated IP53; with optional sealing air, protection increases to IP64 to help keep coolant spray, oil mist and contamination away from the measuring system. The operating-voltage range is DC 3.6 V to 5.25 V and is intended for the matching Fanuc control interface. Maximum permissible traverse speed is 180 m/min. A 14-pin male connector provides the electrical connection. Heidenhain 557644-19 is supplied as a new item in its original packaging and is available from stock in Germany. Before installation, compare the full identification number, measuring length, total length, interface, connector and mounting geometry with the machine documentation. The complete 557644-19 designation is decisive for assignment.

Heidenhain 557644-19 LC 493F absolute linear encoder

Specifications

Manufacturer Heidenhain
Product series LC 400 series
Manufacturer/Order/Identification number 557644-19
Measuring principle Absolute, sealed linear encoder
Measuring length 1140 mm
Total length 1278 mm (ML + 138 mm)
Accuracy class ±5.0 µm
Graduation period 20,000 µm
Measuring step 50 nm
Data interface Fanuc02 serial interface
Electrical connection 14-pin connector (male)
Operating voltage DC 3.6 V ... 5.25 V
Protection rating IP53 (IP64 with sealing air)
Operating temperature 0 °C to +50 °C
Maximum traverse speed ≤ 180 m/min
Cooling method Passive (no active cooling)
Weight approx. 0.83 kg
Control cabinet with PLC modules and automation components
Machine downtime in a production environment

Machine downtime?

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Our highest priority is to keep your production processes running. Rely on our expertise and flexible service to minimise machine downtime effectively.

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Product safety

Manufacturer / EU responsible person

FAQ

Frequently asked questions

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Is there a warranty?

Yes. We provide a 14-day functional warranty for used items. The component must be functional on arrival, and the warranty applies only while the warranty seal remains undamaged. If a fault occurs within 14 calendar days, please contact us in writing. Depending on availability, we will either provide a replacement or refund the full purchase price after the item has been returned. Further details are set out in the terms and conditions supplied with our quotation.

How quickly do you ship, and which shipping options are available?

We normally dispatch available items immediately and, in many cases, on the same working day. For urgent requirements or machine downtime, we will identify the fastest suitable option and can confirm a specific delivery window on request. Express shipping and collection from our premises are also possible by arrangement. We ship worldwide using reliable parcel and freight carriers; freight shipments may require additional preparation to ensure safe delivery.

Is there a guarantee?

Yes, we provide a 14-day functional guarantee for used items. This means the component must be operational when received.

Please note that the guarantee only applies when the warranty seal is undamaged.

If a defect occurs within 14 calendar days, please contact us in writing. Subject to availability, we will provide a replacement or refund the full purchase price after return.

Further details are provided in the terms and conditions supplied with your quotation.

How quickly do you dispatch and which shipping options are available?

We generally dispatch immediately - in many cases on the same working day. For particularly urgent requirements or machine downtime, we find a suitable solution as quickly as possible and provide a specific delivery window on request.

Express shipping or collection from our premises is also possible, depending on the situation. State your requirements during the ordering process or contact us directly.

We ship worldwide and work with reliable shipping partners, from parcel services to freight forwarding. Freight shipments normally require some preparation so the goods arrive safely and undamaged.

Which payment methods are available?

Payment is normally made by bank transfer against invoice. Payment is due within 10 calendar days of receiving the goods.

As a rule, we offer purchase on account for all customers. In individual cases, such as new customers or particularly high-value components, we may agree advance payment. This decision is made individually and communicated transparently.

Can we return items if they were ordered incorrectly?

Because we sell exclusively to business customers (B2B), there is no general right of return and no consumer right of withdrawal.

Please note that returns of functioning goods are generally excluded. In justified exceptional cases, we can assess an individual solution, but this is not the standard procedure.

Is there a discount when ordering several items?

For larger order quantities or several items of one type, we can offer individual discounts.

Simply send us a quick enquiry - we check availability and will gladly prepare a tailored quotation with quantity pricing.

Do you also purchase industrial spare parts?

Yes, we also purchase automation components, such as frequency inverters, PLC assemblies, panels, servo motors and CPUs. Components from Siemens, Lenze, Schneider Electric, Control Techniques or Heidenhain are especially sought after, and other brands are also possible.

The process is straightforward: email us an inventory list or overview photos at info@reha-industriekomponenten.de. We calculate a market-based purchase price and send you an offer.

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