EMRB 5um Encoder
Compact-magnetic (Armored)

  • £137.42

The EMRB is a fully industrial specification magnetic encoder that has has a long pedigree of performance and robustness. It ideal for integration and installation for both Turning and Milling machines. This version of the EMRB has a 5um resolution with a 3m* armored cable exiting from the rear of the encoder, perfect for the majority of lathe and mill applications and where extra robustness from coolants, shock and debris is needed. These are the same reader-heads we use on our Colchester and Harrison lathe Cross-slide kits, where performance, ease of mount and robustness are key.

The EMRB is a compact sized reader-head that can be used with any of our mounting spars and is included with our S1 and G2 scales as standard. 

This fully sealed coolant and dust-proof encoder have a fully machined body and cable ferrule. With EIA422 full differential signals and custom manufactured screened cable, it is ideal for more demanding applications. They uniquely have separate sensors for incremental and reference marks that when combined with our uniquely coded tape provide a viable 50mm periodic reference, as found in standard optical scales.

* Other lengths available

EMRB Sizes

EMSi Connections


Type Magnetic Reader-head
Cable Type Armoured (Connected via machined ferrule)
Cable Length 3m Length (5m optional)
Resolution 5um (0.005mm)
Accuracy Grade 10um (0.01mm)
Signals EIA422 Differential (Vcc, Gnd, A, /A, B, /B, Ref, /Ref)
Connector 9-way Male D-connector (EMSi Pinout)
Ingress Protection IP67 (Coolant and Dustproof)
Power-supply 5VDC
Warranty 2-years



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If you have any queries, or you'd like advice on any of our products, please contact EMS (International) Ltd. on +44(0)116 2793035. Although product information is regularly updated, we are unable to accept liability for any incorrect information provided or published. 

All products supplied by EMS (International) Ltd. are supplied with a warranty against manufacturing defect in addition to your statutory rights. This warranty varies depending on the nature of the product. Details of a product warranty are provided in the Technical description. For a warranty to be valid the product has to have been installed and used within its normal working parameters. This is in addition to your rights in accordance with the Consumer Protection (Distance Selling) Regulations 2000.

The cost of returning an item under warranty is the responsibility of the sender. As per the product warranty, EMS (International) Ltd. will either repair or replace any defective part or parts as needed. The cost of returning the item to the customer will be borne by EMS (International) Ltd. All repairs have a 3-month warranty.

Consumable items such as batteries, bulbs etc. are not covered by the system warranty.


We understand that once an item has been purchased and received it may on the odd occasion be “just not quite right”. As such, you have an extended period of 30-days to change your mind and receive a refund.

If you are outside this 30-day period please contact us and we will do our best to help.

Should you wish to return a product please contact us before returning the goods. Products need to be:

(a): in a resalable condition;
(b): unused;
(c): in the supplied packaging with all literature;
(d): unmarked and complete;
(e): if part of a multi-part set, all parts of the multi-part set are to be returned;


Any items returned that do not meet these conditions will be returned to the customer and no, or a reduced refund issued.

Please note: the cost of the return of all items is the responsibility of the sender.


Whilst we make every attempt to ensure the information presented, technical, images, text etc. is correct, EMS (International) Ltd. accept no liability for any errors presented in any form on this website, including descriptions, downloads, and links. We apologize for any such errors that may occur and would be glad to hear from you about any such issues so that corrections can be made.

EMS (International) Ltd. expressly disclaims all liability where customers make any decision or infer any information based on the content of this website. The customer, in using this website, indemnifies EMS (International) Ltd., its affiliates and/or suppliers from any claims or damages that may arise. 

Whilst we endeavor to have products available in stock for immediate, or next working day, dispatch we regret that we are unable to guarantee that this will always be possible. Should any products or orders be needed quickly please contact EMS (International) Ltd. before ordering. If supply will take longer than 5 working days we will make all reasonable effort to contact you with a delivery schedule.

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