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FANUC A57L-0001-0037

Rated 5/5 on 2 reviews

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PRODUCT TYPE INFO: Magnetic Sensor

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2 Year warranty

Part NumberA57L-0001-0037
Model #A57L00010037
Warranty2 Year
A57L–0001–0037Type II
TypeMagnetic sensor for orientation
Maximum speed12,000min–1
Shape30 x 50
Power supply voltage0V to +18V
Operating temperature0°C to +50°C
Humidity30% to 90% RH
Power supply voltageDC 15V ± 5%
Current consumption100mA or less
CH 11/rev (MSA–MSB)
CH 21/rev (LSA–LSB)

Our Repair Services

MRO Electric repairs CNCs, PLCs, Servo/Spindle Drives, Motors, Amplifiers, VFDs, HMIs, and more, most of which can be repaired in only 3-5 days.

Repair Benefits

MRO can restore your failed A57L-0001-0037 to remanufactured condition and save you up to 75% compared to buying new. We offer standard repair pricing to ensure you the best value for your repair.

Our certified technicians use rigorous testing procedures to ensure your parts are restored to fully functioning condition. Our team proudly stands behind all repairs by providing a minimum 2-year warranty.

Our technicians have vast experience with most manufacturers and models. In addition to this A57L-0001-0037 we also repair a wide range of other FANUC products, so if you don’t see the model you need, please contact us.

Core Exchange

If you are interested in getting credit for your faulty A57L-0001-0037, just let us know, and we can issue you an RMA to send it in as an exchange. Our exchange program provides you with savings and keeps us stocked for the next time you need anything.

  • Shipping Weight : 1lb

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Ask about exchanging your faulty A57L-0001-0037 for credit when ordering from MRO Electric

MRO Electric provides a 2-year warranty on every item we sell and repair. We stand behind all of our products and guarantee them for the full 2 years. If there is an issue with any of our products within the warranty period, we will evaluate the unit and repair or replace it under warranty.

FANUC A57L-0001-0037 Overview

Type II, 12,000 min–1 These products are manufactured in Japan and are designed for Commodity production, advanced machining, and CNC milling usage. They come with a 2-year warranty from MRO Electric. We also carry Accessories from other manufacturers such as Siemens and Control Techniques.

The magnetic sensor for orientation module A57L–0001–0037 is manufactured by Fanuc for use with spindle modules.


The A57L–0001–0037 is a detector for a spindle module. Where is the magnetic sensor mounted? The Fanuc A57L–0001–0037 magnetic sensor is mounted on the rotation body of the spindle module. Centrifugal force can dislodge a magnet. Check to ensure this has not occurred. The Fanuc A57L–0001–0037 should be mounted as close to the amplifier as possible. The magnetic sensor should not come in contact with magnetic substances. Contact with magnetic substances could alter the stop position. Iron chips or powder can easily attach to a magnet, so care should be taken to ensure it is free of both.

Special care should be taken if the spindle contains a magnetic clutch for high/low switching such as a circuit that forms a magnetic loop. If this is the case, one should mount a magnet on a non-magnet.  A non-magnet source like an aluminum plate is best. Because the magnetic loop of the magnetic clutch has an influence, a magnetic flux is always applied when the magnetic clutch is on. The magnet has a magnetic flux, at a stop position, of zero.

The cable side of the magnetic sensor head, the magnetic sensor amp, and connection cables should be free from lubricant and coolant. Exposure to these can cause damage.

Mounting of the Fanuc magnetic sensor for orientation module A57L–0001–0037 is directly on the spindle. Repeatability degrades when a magnet is mounted with the use of a gear connection or a spline connection. This is informed by the amount of backlash between the spindle and the magnet.

Mounting for the A57L–0001–0037

The spindle of a machine tool can be configured with either a gear or a belt connection. The mounting direction for the magnet module depends on the spindle configuration.  This is because of the polarity relationship with a magnetic sensor. It is possible for forward and reverse rotations to be repeated if the reference hole and magnetic sensor pin groove are not fitted properly. When viewed from the motor shaft, the spindle motor should rotate counterclockwise if forward if the forward rotation command = 1.

Contact Us Today For More Information About FANUC Products

Check out the rest of our FANUC product line. Whether it's using our online instant quote feature, giving us a call at (800) 691-8511, or emailing us at, we strive for customer satisfaction first. This means lower prices and better service for you. For more products like A57L-0001-0037, take a look at more from our Accessories line. If your current unit has gone bad, take advantage of our Core Exchange program for the most inexpensive route. You can learn more about this program on our FAQ page here. We offer a repair service on all of our A57L-0001-0037 products that keep your downtime to a minimum. To stay up to date on manufacturer news, as well as access any of our datasheets, manuals, or other documentation, we suggest you take a look at our blog.

5 stars

4.9 Overall Satisfaction Rating

Over 1700 Ratings from Actual Customers

Read Our Reviews

Fast delivery and very good service.


Would use again. Received in timely manner.


Very happy with the overall service, delivery, communication and delivery,

Conley Cooke