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⚙️ Elevate your CNC game with power, speed, and silence—because your projects deserve the best.
The Genmitsu GS-775M is a high-performance 24V DC spindle motor designed for Genmitsu 3018 CNC routers, delivering 20,000 RPM with noise suppression and durable stainless steel construction. Its easy installation and double ball bearing design ensure reliable, quiet, and precise operation, making it the ultimate upgrade for professional-grade engraving and milling.

















| ASIN | B08DTHDSMV |
| Best Sellers Rank | #260,481 in Home Improvement ( See Top 100 in Home Improvement ) #220 in Engraving Tools |
| Brand | Genmitsu |
| Brand Name | Genmitsu |
| Country of Origin | USA |
| Customer Reviews | 4.3 out of 5 stars 1,354 Reviews |
| Horsepower | 75 Watts |
| Item Dimensions W x H | 43W x 43H Millimeters |
| Manufacturer | Genmitsu |
| Material Type | Stainless Steel |
| Model Name | MR775 |
| Model Number | MR775 |
| Part Number | MR775 |
| Product Dimensions | 43W x 43H Millimeters |
| Shaft Diameter | 5 Millimetres |
| Speed | 20000 RPM |
| UPC | 816550023723 |
| Voltage | 240 Volts |
P**4
Perfecto
Cumple muy bien su función, potencia de sobra para mi CNC y bien alineado.
G**H
Cvn router spindle
Upgrade to the standard and works well
U**Y
Yes, it is loud, but no louder than my wood router.
First thing I did was measure the runout. I put the motor in a vise and placed a dial indicator on the side of the collet holder (without the collet cap). Rotating by hand, the total runout is .001". This is very good. The collet holder is glued onto the motor shaft. I suspect this is because they tweak the thing until it's true. I'll bet this is why they give you a holder with the motor. You are purchasing a system. I would recommend that you never remove the holder because it'll never go back on straight. Went to install it on my cheapo 3018 and it wouldn't fit. There is a metal band on the motor, presumably so it will fit larger machines. The band simply snaps off, which allowed the motor to fit into the Z-axis bracket just fine. The diameter of the motor, without the band, is 1.65" I read all the reviews about ramping up the motor, but just for fun, I simply turned it on at full speed with the Candle interface. The motor came on without any issues. However, just for good measure, I will put the ramp-up code into the header section of the gcode generator so it's always there for all NC program files. The motor is very loud, but not because it's unbalanced or out of round. It runs at 20K RPM, so I would expect it to be loud. It isn't any louder than my Craftsman wood router. I was hesitant to purchase this motor, but since Amazon has a decent return policy, I decided to risk it. So far, I'm pleased.
G**O
Excellente kwaliteit
goede balans, zo goed als geen trillingen zeer tevreden over de kwaliteit
A**ー
動作:良し◎、精度:良し◎、剛性:良し◎!!
・自作のNC工作機のルータ部として使用。私の手元に届いた物は、中心出しをする必要がなく、(簡易的な計測ですが)公差±0.1程度に収まっていました。すぐに使えました。 突入電流が大きい分、電流バッファ用の回路を軽く組む必要がありますが、そのぶん無理な負荷をかけなければ切削パワーは十分に期待できそうです。(どちらかというと、速い回転数で、浅く切り込み、切削速度は速めでといった加工に向いていそうです) ・ほかのレビュアーの方は「突入電流が,,,」や「精度が,,,」と書かれていますが、突入電流に関しては適当なMOS-FETのバッファ回路(24V電源は余裕をもって10A程あれば十分かと、[容量5Aでもスロースタートで十分に使用できています])を組み、精度に関しては恐らくマシンの剛性がないか刃物の固定が甘いだけだと思われますので、まともな使い方をすれば全く持って問題ないと考えられます。私は整流子の焼き付きが怖いので「20V/5A(過電流保護付き)」の電源で使用しております。 しっかりとした製品で、購入後半年を経過しましたが錆や劣化などは、ほとんどないように見えます(カーボンブラシも使用頻度が少ないので、半年の間そこそこな加工をしても、ほぼ摩耗していないような状態でした)。 ・自分の中ではかなり良い買い物でした。
Trustpilot
1 month ago
1 month ago