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Genmitsu GS-775M 20000RPM 775 CNC Spindle Motor with 5mm ER11 Collet Set, CNC 3018 Upgraded Accessories, DC 24V, High Power, Noise Suppression, Electrical DC Motor for 3018 CNC Router Machine

4.3 4.3 out of 5 stars 1,164 ratings
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Brand Genmitsu
Speed 20000 RPM
Voltage 24 Volts
Horsepower 75 Watts
Product Dimensions 1.69"W x 2.67"H

About this item

  • DC: 24V. Speed: 20000/min.
  • Experience a quick and easy upgrade for your Genmitsu Desktop CNC.
  • Pre-installed motor noise suppression PCB provides enhanced performance.
  • It's compatible with All 3018 Series CNC router. Applied to lathes, mills, car hoists, pumps & conveyors, etc.
  • Double ball bearing brush. CW/CCW rotation.

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Product details

  • Item model number ‏ : ‎ MR775
  • Date First Available ‏ : ‎ July 29, 2020
  • Manufacturer ‏ : ‎ Genmitsu
  • ASIN ‏ : ‎ B08DTHDSMV
  • Customer Reviews:
    4.3 4.3 out of 5 stars 1,164 ratings

From the brand


Product Description

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Genmitsu GS-775MR CNC Motor

Experience a quick and easy upgrade for your Genmitsu Desktop CNC. The GS-775M motor fits all Genmitsu 3018 series CNC router machine: 3018/3018-PRO/3018-MX3/3018-PROVer. Easy Installation for a quick swap of the OEM Spindle. This motor with higher speed for you to do more engraving work efficiently.

Note

  • Wiring: Red lead connects to the positive pole, and black lead connects to the negative pole. If the wiring is reversed, the motor will rotate in the opposite direction.
  • Overload: Keep the motor is within the specified load range as far as possible. Don't block the motor or keep it run in a stall status for a long time. Otherwise, the motor will burn out.

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Specifications

  • Rated Voltage: DC 24V
  • No-Load Speed: 20000 RPM
  • Motor Size: 43 x 68 mm (D*L)
  • Double Ball Bearing Brush
  • CW/CCW Rotation

High Speed

The motor speed is 24V 20000 RPM, which is 10000 RPM higher than the original CNC spindle motor. You can do much more engraving and drilling work with this great motor.

Application

The motor is suitable for desktop drilling machines, desktop milling machines, CNC router machines, cotton candy machines, small lathes, precision machine battery vehicles, toy cars, etc.

Note: The offline controller of 3018-PRO can't work with this 20k spindle.

The way to get the new GS-775M spindle motor up to speed is to increment its runup using a sequence of GCODE commands. Those are shown here:

(Applies to new SainSmart Genmitsu GS-775M Spindle Motor)

(Spindle Speed 10000 RPM X 2; Set 10000 value for max spindle speed in Candle Settings)

(Ramp up spindle speed GCODE to prevent power supply overload)

M03 S1000

G4 P0.5

M03 S2000

G4 P0.5

M03 S5000

G4 P0.5

M03 S10000

(Spindle is now running at full speed)

This method is known to prevent overload of the power supply.

An alternative is to replace the stock power supply with one having greater current capacity (24V 8-10A), but that may burn out the controller with an abrupt 100% speed command.

However, a larger power supply should provide more cutting power from the GS-775M spindle, but the power-up sequence shown above is still recommended.

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Customer Reviews
4.5 out of 5 stars
665
4.6 out of 5 stars
707
3.7 out of 5 stars
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4.5 out of 5 stars
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4.1 out of 5 stars
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4.5 out of 5 stars
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What's this for Keep your machine and work area clean while cutting, drilling, and carving. Keep materials in position when engraving Long service time and more quieter Protect the CNC router table from damage Dustproof, noise reduction, for 3018 series CNC routers For CNC Engraving Milling Lathe Chuck Tool
Genmitsu Genmitsu Genmitsu Genmitsu Genmitsu Genmitsu
EM03A VG05B SR03A BS04A FT01 TR06A
Customer Reviews
4.6 out of 5 stars
32
4.7 out of 5 stars
22
5.0 out of 5 stars
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3.6 out of 5 stars
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5.0 out of 5 stars
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Surface Chromatic Coating Nano Blue Coating Nano Blue Coating Titanium Coating Nano Blue Coating
Shank Diameter 1/8''(3.175mm) 1/8''(3.175mm) 1/4''(6.35mm) 1/4''(6.35mm) 1/4'' (6.35mm)
Cutting Diameter/Radius R0.1mm, R0.2mm, R0.25mm 3.175mm 1.58mm/3.175mm 5mm/7mm 1/4'' (6.35mm)
Quantity 3 5 3 4 1

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Customer reviews

4.3 out of 5 stars
4.3 out of 5
1,164 global ratings

Customers say

Customers like the performance and speed of the electric motor. For example, they mention it works well, runs at full speed very smoothly, and enables them to carve faster. That said, some complain about the noise and vibration. Opinions are mixed on quality.

AI-generated from the text of customer reviews

29 customers mention22 positive7 negative

Customers like the performance of the electric motor. They say it works well, runs great, and performs fantastic. Some mention that the motor may not work out of the box. Overall, customers are satisfied with the performance and functionality of the product.

"...Had to adjust some parameters and it worked flawless and smooth right away.Did 3 paw programs to test it out...." Read more

"...First carve with it was 4 hours and it preformed fantastic. Much cleaner results...." Read more

"Spindle gives excellent performance compared to the stock 10k. Has alot more power and the extra rpm allows you to run higher feeds and speeds...." Read more

"This is a great little collet / motor for cnc milling" Read more

10 customers mention10 positive0 negative

Customers are satisfied with the speed of the electric motor. They mention that it runs at full speed very smoothly, and it spins and cuts much faster than the original part. Some say that the motor is noisy, but it does a good job routing PCBs really fast. The extra rpm does make a difference, and the motor enables them to carve faster.

"...Yes it is a bit louder than the slower stock motor but it's also spinning 2x's faster!" Read more

"...It will enable you to carve faster, if you modify some parameters in the grbl controller to enable higher acceleration and feed rates, and also you..." Read more

"Motor is great, but CNC was hard to use" Read more

"Does a good job routing pcbs really fast. It's literally 3-4x louder than the stock 10000 rpm though, so I took off a star." Read more

7 customers mention7 positive0 negative

Customers appreciate the value of the electric motor. They mention it's a good buy and it pays off immediately.

"This is a great little spindle for the price. I very much recommend this product if you have a small CNC mill and need a spindle for it...." Read more

"...Just got it 20 minutes ago and already trying to adjust the gcode. Worth the money if the projects get done faster." Read more

"...It's not expensive, and it pays off immediately - do it!" Read more

"This was a good upgrade for my 3018 pro great price and easy to install and came complete ready to use...." Read more

5 customers mention5 positive0 negative

Customers find the installation of the electric motor to be very easy. They mention that it's a quick and easy swap, and the settings in grbl are super easy to change.

"...please know that I have a 2022 3018 pro from rat, the settings in grbl were super easy to change...." Read more

"...speed properly, which is what I do, but otherwise it is a very quick and easy swap. This spindle cuts much faster, cutting my times by about 30%...." Read more

"...Very easy to install. Just got it 20 minutes ago and already trying to adjust the gcode. Worth the money if the projects get done faster." Read more

"...It seems like an easy swap, and installation takes 5 minutes...." Read more

16 customers mention8 positive8 negative

Customers are mixed about the quality of the electric motor. Some mention that the 20K spindle is a very good upgrade to the base spindles that comes with, and is able to upgrade your engraver. However, others say that it leads to wobble in the spindlet and very bad machining. The bearing shattered, so the whole motor just flops around in the case. Either a bad bearing or the motor itself is out of balance, it vibrates the spinnle mount and the entire CNC 3018ProVer.

"The 20k spindle is a very good upgrade to the base spindle that comes with the 3018-PROVer...." Read more

"...had some issues with the spindle being misaligned, which caused a wobble...." Read more

"...The motor is a worthwhile upgrade, I added a separate 24v power supply to run this motor." Read more

"Very Loud, has a slight wobble, and LOUD!!" Read more

39 customers mention8 positive31 negative

Customers are dissatisfied with the noise produced by the electric motor. They mention that it makes a tremendous high frequency racket.

"...SUPER HAPPY and can't wait to push the limits!Yes it is a bit louder than the slower stock motor but it's also spinning 2x's faster!" Read more

"...Much cleaner results. There is a slight vibration at around 14,000 to 15,000 rpm but nothing terrible. I will just avoid running it at those speeds...." Read more

"...this is my second spindle the first one was so out of balance it was super loud and shook the machine like crazy compared to the stock spindle which..." Read more

"...I noted that the new motor is much quieter in spite of having a higher pitch to it. I'm assuming higher RPM...." Read more

8 customers mention0 positive8 negative

Customers are dissatisfied with the balanced of the electric motor. They mention that it is loud and out of alignment.

"...to replace the cheap 775 on my generic 3018 cnc.. The rotor must not have been balanced because it vibrated more than the original motor...." Read more

"...I begin to think this one was out of alignment and balance." Read more

"...It must be out of balance because it vibrates the entire machine when it is turned on. I waited too long to test it out so I can’t return it...." Read more

"...The replacement is also loud and has too much vibration. It does not appear to be balanced and with much less noise than the original motor, unlike..." Read more

5 customers mention0 positive5 negative

Customers are dissatisfied with the bearing of the electric motor. They mention that the collet nut is machined very poorly, the bearing is bad, and the motor itself is out of balance. The rear bearing broke after less than 10 hours of conservative milling in wood. The bearing is dirty and looks used, and it seems to have a loose or broken connection.

"...reviewer stated, the collet nut provided with this is absolutely terribly machined...." Read more

"The Collet nut is machined very poorly...." Read more

"...In less than 10 hours of operation, the rear bearing shattered, so the whole motor just flops around in the case...." Read more

"...There is either a bad bearing or the motor itself is out of balance. I guess you get what you pay for." Read more

Great spindle upgrade!
5 Stars
Great spindle upgrade!
I've had my 3018 for a few years now and have used it a ton. I finally pulled the trigger and upgraded to the 20K spindle.Motor came 100% ready to go.Installed it and immediately wrote basic program in pic I added. Had to adjust some parameters and it worked flawless and smooth right away.Did 3 paw programs to test it out.SUPER HAPPY and can't wait to push the limits!Yes it is a bit louder than the slower stock motor but it's also spinning 2x's faster!
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Top reviews from the United States

Reviewed in the United States on October 26, 2023
Customer image
5.0 out of 5 stars Great spindle upgrade!
Reviewed in the United States on October 26, 2023
I've had my 3018 for a few years now and have used it a ton. I finally pulled the trigger and upgraded to the 20K spindle.
Motor came 100% ready to go.
Installed it and immediately wrote basic program in pic I added. Had to adjust some parameters and it worked flawless and smooth right away.
Did 3 paw programs to test it out.
SUPER HAPPY and can't wait to push the limits!
Yes it is a bit louder than the slower stock motor but it's also spinning 2x's faster!
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2 people found this helpful
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Reviewed in the United States on November 17, 2023
One person found this helpful
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Reviewed in the United States on March 1, 2022
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4.0 out of 5 stars Great performance as long as you get one that is balanced
Reviewed in the United States on March 1, 2022
Spindle gives excellent performance compared to the stock 10k. Has alot more power and the extra rpm allows you to run higher feeds and speeds. Alot less likely to chatter with the small bits hogging out materials. My first test was on 1/2" birch plywood running 20k rpm 30in/min feed 9in/min plunge and 0.028" depth per pass and it flew through like a hot knife through butter. That being said this is my second spindle the first one was so out of balance it was super loud and shook the machine like crazy compared to the stock spindle which was nearly silent. I put in for an exchange and the second spindle I received runs perfect just like the 10k but much better performance. Don't settle for one that is loud and shakes they aren't supposed to.
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6 people found this helpful
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Reviewed in the United States on July 16, 2022
5 people found this helpful
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Reviewed in the United States on January 16, 2024
Reviewed in the United States on July 6, 2023
Reviewed in the United States on January 5, 2024
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1.0 out of 5 stars Motor may be fine but collet nut provided makes this unusable.
Reviewed in the United States on January 5, 2024
As another reviewer stated, the collet nut provided with this is absolutely terribly machined. There is an internal band that is machined so far off center the collet cannot connect to the machined surface in the nut. I actually noticed this problem with original nut supplied with my 3018-PROver. That one was not quite as bad so is somewhat usable for some rough work, etc.

First picture is the nut provided. Second is the one that came with my original machine. The 3rd is both and you can see the old one on the left doesn't quite contact, but you can see the one on the right (the new one) doesn't even come close.

Have contacted Genmitsu; will update if I hear from them.
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Reviewed in the United States on June 30, 2023

Top reviews from other countries

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Client d'Amazon
5.0 out of 5 stars A1
Reviewed in Canada on March 15, 2024
Grzegorz Kapelko
1.0 out of 5 stars The engine does not work.
Reviewed in Belgium on March 3, 2024
Ricardo Tardelli
5.0 out of 5 stars Belo upgrade
Reviewed in Spain on December 1, 2023
Ciro Arienzo
5.0 out of 5 stars amazon gente seria
Reviewed in Italy on October 25, 2023
Legoy
5.0 out of 5 stars Tourne bien à 20 000 tr/mn
Reviewed in France on August 19, 2023
One person found this helpful
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