--- product_id: 426667312 title: "Air-Cooled 300W Spindle Motor" brand: "genmitsu" price: "£114.89" currency: GBP in_stock: true reviews_count: 13 category: "Genmitsu" url: https://www.desertcart.co.uk/products/426667312-air-cooled-300w-spindle-motor store_origin: GB region: United Kingdom --- # 300W high power output 0-48V adjustable speed control Air-cooled for extended runtime Air-Cooled 300W Spindle Motor **Brand:** genmitsu **Price:** £114.89 **Availability:** ✅ In Stock ## Summary > ⚙️ Upgrade your CNC game with power, precision, and cool confidence! ## Quick Answers - **What is this?** Air-Cooled 300W Spindle Motor by genmitsu - **How much does it cost?** £114.89 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/426667312-air-cooled-300w-spindle-motor) ## Best For - genmitsu enthusiasts ## Why This Product - Trusted genmitsu brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Tailor Your Speed:** Adjustable 0-48V output lets you dial in spindle speeds from 3,000 to 12,000 RPM for versatile material handling. - • **Plug & Play Upgrade:** Includes 52mm clamp and ER11 collet for seamless integration—just add the recommended mount for 3018 CNC models. - • **Power Through Precision:** 300W brush DC motor delivers robust torque for smooth, high-speed CNC machining. - • **Ready for Metal Mastery:** Capable of engraving light metals and tough materials, elevating your CNC projects beyond the basics. - • **Stay Cool Under Pressure:** Advanced air-cooled design ensures consistent performance during long, demanding engraving sessions. ## Overview The Genmitsu Air-Cooled 300W Brush DC Spindle Motor is a high-performance upgrade for CNC machines, featuring a durable chrome-plated motor, adjustable 0-48V output for speeds up to 12,000 RPM, and an air-cooled system for extended use. Designed for engraving light metals and hard-to-cut materials, it includes a 52mm clamp and ER11 collet, making it a versatile and reliable choice for professional-grade CNC machining. ## Description Genmitsu Air-Cooled 300W Brush DC Spindle Motor with 0-48V Output Adjustable Switching Power Supply, 52mm Clamp & ER11 Collet, ideal for CNC Machining : desertcart.co.uk: Automotive Review: Major upgrade - If youre like me and upgrading the spindle on your cnc, youll probably be recommended this a lot, and honestly theres a reason for that, the standard motor on the cnc is 7k RPM, this is 20K and so a major improvement, if you want to feel the full effects of that, this will need its own power supply as it takes a fair bit, but it can still be ran at speed without just having less torque to it, the nut and collet provided is alright quality but safe yourself the hastle and buy one of each individually, youre buying a spindle, not those parts and so may be slightly off and make noise, which is why Ive given it a 4/5 on accuracy, as the vibration from that makes it majorly louder, as well as the added speed of course, but still having this spindle at such a low price has made milling softer materials so so much easier and better, with it even milling aluminium at a push (this is all without its own power supply like I said). So overall this spindle will get your job done, and done well at that, it is still a budget spindle, but is a damn good one and I totally recommend it. Review: Loud but powerful - The motor is very loud but runs much truer than original motor in my 3018. ## Features - Spindle motor: new chrome plated DC brush motor; This spindle comes equipped with air-cooled function, which can work normally for a long time. - Install this spindle set into your CNC machines, then your machines can easily engrave light metal or other hard to cut materials. - Spindle uncirculation: 0.01-0.04; Speed: 3000-12000 rpm (12V-3000RPM, 24V-6000RPM, 36V-9000RPM, 48V-12000RPM) - The output voltage is adjustable. The output current is not adjustable, and the output current is determined by the load. - Note: If you want to use it on 3018 series CNC machines, you will need an additional 52mm diameter motor mount. The Genmitsu Aluminum Engine Mount for Z Axis (B08SC9K538) would be a good choice. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0819C92D2 | | Best Sellers Rank | 439,538 in DIY & Tools ( See Top 100 in DIY & Tools ) 536 in Engraving Tools | | Brand | Genmitsu | | Customer Reviews | 4.1 4.1 out of 5 stars (1,471) | | Date First Available | 11 Sept. 2021 | | Item Weight | 2.05 kg | | Item model number | 101-60-SPM300 | | Manufacturer | Genmitsu | | Manufacturer part number | 101-60-SPM300 | | Product Dimensions | 15 x 15 x 18 cm; 2.05 kg | | Voltage | 12 Volts | ## Product Details - **Brand:** Genmitsu - **Horsepower:** 300 Watts - **Product dimensions:** 15W x 18H centimetres - **Speed:** 12000 RPM - **Voltage:** 12 Volts ## Images ![Air-Cooled 300W Spindle Motor - Image 1](https://m.media-amazon.com/images/I/718Q3mby8oL.jpg) ## Questions & Answers **Q: Does this fit the 3018 prover?** A: It requires you to 3D print a 52mm bracket. Ve sure to write Sainsmart for the bracket - it's a perfect fit and works with the end stops. Be *very* careful when removing the Z-axis bearings. They are 35mm bearings and are impossible to find. In fact, you should buy LM8SUU (short 17mm) bearings x 4 in case you mess up and some balls come out of the bearings. Those are easier to find. Print the bracket at least 80% solid, reassemble your machine, and you're in business. It works quite well. **Q: does this work with the cnc3 3018 pro?** A: Can you send me wiring directions to the board for this unit **Q: Will this fit your new. 4040 model** A: I had to purchase a new Z axis holder to use this spindle - it is not a take the old one out and put the new one in situation. **Q: what do I use for a power source. do I just modify a wall plug cord to wire the converter?** A: It comes with a 3-prong power cord which you connect to the terminal screws on the power supply. I attached crimp terminals to the ends of the power cord for a better connection. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Major upgrade *by J***Y on 18 December 2021* If youre like me and upgrading the spindle on your cnc, youll probably be recommended this a lot, and honestly theres a reason for that, the standard motor on the cnc is 7k RPM, this is 20K and so a major improvement, if you want to feel the full effects of that, this will need its own power supply as it takes a fair bit, but it can still be ran at speed without just having less torque to it, the nut and collet provided is alright quality but safe yourself the hastle and buy one of each individually, youre buying a spindle, not those parts and so may be slightly off and make noise, which is why Ive given it a 4/5 on accuracy, as the vibration from that makes it majorly louder, as well as the added speed of course, but still having this spindle at such a low price has made milling softer materials so so much easier and better, with it even milling aluminium at a push (this is all without its own power supply like I said). So overall this spindle will get your job done, and done well at that, it is still a budget spindle, but is a damn good one and I totally recommend it. ### ⭐⭐⭐⭐⭐ Loud but powerful *by A***S on 29 April 2023* The motor is very loud but runs much truer than original motor in my 3018. ### ⭐⭐⭐⭐ Noisy *by G***F on 12 July 2025* Works well as a drop in replacement for the original that came with the CNC, it's so noisy! ## Frequently Bought Together - Genmitsu Air-Cooled 300W Brush DC Spindle Motor with 0-48V Output Adjustable Switching Power Supply, 52mm Clamp & ER11 Collet, Ideal for CNC Machining - Genmitsu CNC Router Machine 4040-PRO for Metal Acrylic Cutting Milling, GRBL Control, Lead Screw Driven, 3 Axis Engraving, Working Area 15.7” x 15.7” x 3.1” - Genmitsu 40pcs End Mills CNC Router Bits, 1/8" Shank CNC Cutter Milling Carving Bit Set Including 2-Flute Flat Nose & Ball Nose, Nano Blue Coat & Titanium Coat, MC40A --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/426667312-air-cooled-300w-spindle-motor](https://www.desertcart.co.uk/products/426667312-air-cooled-300w-spindle-motor) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-13*