Acu-Rite Scales
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Only with Acu-Rite's precision glass scale technology can you be assured that the encoder on your machine tool is checking its actual position thousands of times in every inch of travel.

An Acu-Rite 1um precision glass scale has 1,270 accurately placed chrome lines per inch, each of which a photoelectric reading head detects as it slides across the glass.

This give Acu-Rite's precision glass scales a fundamental measuring interval 10 times finer than the nearest alternative encoder technology.



Acu-Rite's precision glass scales and encoder optics are enclosed in an aluminum housing with sealed, die-cast metal end caps which make them virtually unbreakable during standard machine tool usage.

To enhance system durability, the glass scale and sensor are protected from the environment by a recessed, highly chemical-resistant, interlocking lipseal to further prevent the entry of metal chips and other contaminants. A nickel-plated armor cable offers additional protection and allows for a tighter bend radius. Acu-Rite also applies a conformal coating that seals the wires and circuitry inside the reading head, leaving little chance of failure.



Because of the large quantity of available Acu-Rite scales and related items we do not list all products for sale on this page. Please call us at 800-285-5271 for price and availability on any Acu-Rite scale, reader head or repair to your current Acu-Rite product
Acu-Rite 5um Scale Assembly

Acu-Rite 5um Scale Assembly

Acu-Rite 5um Scale Assembly
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Acu-Rite bases their scales size on reading length, not overall length. 

To get the correct size scale, you need to measure the overall length of the scale and then subtract 6". For example, on your 48" Bridgeport, your scales' overall length is going to be 41" so to get the proper scale you will subtract 6" and order the 35" scale. 

This will not work if you have an Acu-Rite MillPWR, please call the number below for pricing

If you have any questions please call 1-800-285-5271

Please pick your size on the pull-down below:
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A high performance ACU-RITE SENC 50 is a compact, flexible and versatile precision glass scale designed for applications involving limited or confined mounting spaces. A SENC 50 also withstands elements of contamination found in even the harshest machine shop environment. Every ACU-RITE precision glass scale incorporates ACU-RITE's long-standing tradition of quality, reliability, durability and dependability at an affordable price. The SENC 50 precision glass scale is available in travel lengths from 1" - 20", in resolutions of 0.5µm, 1µm, 5µm and with an accuracy of ±3µm/meter.

An ACU-RITE ENC 125 precision glass scale withstands the elements of contamination found in even the harshest environment. All ACU-RITE precision glass scales incorporate Acu-Rite Companies Inc.'s long-standing tradition of quality, reliability, durability and dependability at an affordable price. The all NEW! ENC 125 precision glass scale is designed to satisfy a wide range of applications needs and is available in top (T) and end (E) mount scale configurations. The ENC 125 T/E is available in travels lengths from 2"- 120", in resolutions of 5µm and 10µm, and with an accuracy of ±10µm/meter.

An ACU-RITE SENC 150 precision glass scale is the workhorse of ACU-RITE's scale product line and withstands the elements of contamination found in even the harshest environment. All ACU-RITE precision glass scales incorporate Acu-Rite Companies Inc.'s long-standing tradition of quality, reliability and durability at an affordable price. The all NEW! SENC 150 incorporates the latest innovation in roller bearing technology for reduced backlash and greater scale travel life. The SENC 150 also features a highly integrated scanning sensor that provides superior contamination resistance. The SENC 150 precision glass scale is designed to satisfy a wide range of application needs including, but not limited to, EDM's, grinders, lathes, milling machines and inspection equipment. The SENC 150 precision glass scale is available in travel lengths from 2" - 120", in resolutions of 0.5µm, 1µm, 5µm and with an accuracy of between ±1.5µm/meter to ± 5µm/meter .

ACU-RITE SENC 150 scales can be used with all ACU-RITE Digital Readout Products.

The ACU-RITE ENC 250 linear encoder withstands the elements of contamination found in even the harshest machine shop environment. The ENC 250's rugged, thick-walled encoder case is ideal for lathes, boring mills and other large machine tools. Available in single-section encoder lengths of 127" (3.24m) to 237" (6.04m) and multi-section encoder lengths of up to 773" (19.64m), the ENC 250 provides exceptional accuracy with a resolution of .0002" (5µm).

ENC 250 encoders feature Position-Trac", a unique feature that, when used with ACU-RITE's new readout systems, enable the operator to easily, quickly and accurately re-establish workpiece zero after power loss.

ACU-RITE AR-10 PLUS scales are specifically designed to maintain high accuracy over long travels. AR-10 PLUS scales are available in travel lengths from 128" - 773", in a 5µm resolution, and with an accuracy of ±10µm/meter.