--- product_id: 387114893 title: "RATTMMOTOR CNC Spindle Motor, 3KW Water Cooled Spindle Motor 220V 12A ER20 Spindle 4-Bearings 100mm Spindle Motor 400HZ 3-Phase for CNC Router Engraving Milling Machine" brand: "rattmmotor" price: "€ 738.55" currency: EUR in_stock: true url: https://www.desertcart.hr/products/387114893-rattmmotor-cnc-spindle-motor-3kw-water-cooled-spindle-motor-220v store_origin: HR region: Croatia --- # 3KW Power Water-Cooled 0-24000 RPM RATTMMOTOR CNC Spindle Motor, 3KW Water Cooled Spindle Motor 220V 12A ER20 Spindle 4-Bearings 100mm Spindle Motor 400HZ 3-Phase for CNC Router Engraving Milling Machine **Brand:** rattmmotor **Price:** € 738.55 **Availability:** ✅ In Stock ## Summary > 🚀 Elevate Your Craft with Precision Power! ## Quick Answers - **What is this?** RATTMMOTOR CNC Spindle Motor, 3KW Water Cooled Spindle Motor 220V 12A ER20 Spindle 4-Bearings 100mm Spindle Motor 400HZ 3-Phase for CNC Router Engraving Milling Machine by rattmmotor - **How much does it cost?** € 738.55 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/387114893-rattmmotor-cnc-spindle-motor-3kw-water-cooled-spindle-motor-220v) ## Best For - rattmmotor enthusiasts ## Why This Product - Trusted rattmmotor brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable Design:** Stainless steel body and dust-proof cover ensure longevity. - • **Efficient Cooling:** Water-cooled system prevents overheating during intense tasks. - • **Precision Engineering:** Achieve a runout of less than 0.01mm for flawless results. - • **High-Speed Performance:** Experience speeds up to 24000 RPM for rapid machining. - • **Versatile Applications:** Perfect for wood carving, engraving, and CNC machining. ## Overview The RATTMMOTOR CNC Spindle Motor is a robust 3KW, 220V water-cooled spindle designed for high-speed applications, featuring a precision runout of less than 0.01mm and a durable stainless steel body. Ideal for CNC routers and engraving machines, it operates at speeds up to 24000 RPM, ensuring efficiency and accuracy in non-metallic materials. ## Description RATTMMOTOR CNC Spindle Motor, 3KW Water Cooled Spindle Motor 220V 12A ER20 Spindle 4-Bearings 100mm Spindle Motor 400HZ 3-Phase for CNC Router Engraving Milling Machine ## Features - How to Wire The Spindle Motor The spindle motor's aviation plug marked with number 1, 2, 3, 4. Number 1, 2, 3 port are connected with inverter's port U, V, W respectively. Number 4 does not require wiring. - Simple Introduction This is a 220V 3KW water-cooled 12A Φ 100x220mm spindle motor come with a ER20 nut and collet. Frequency is 400HZ, 0.01mm precision tapered bore and runout off is less than 0.01mm. It is mainly suitable for non-metallic engraving,such as wood carving/engraving machine, adver engraving machine,CNC machine. - Speed of The Spindle Motor 0-24000RPM. Because it is a high-speed spindle motor, the spindle speed must not be lower than 9000 rpm during the use of the spindle. It should be noted that the spindle only can rotate clockwise but not counterclockwise. - Advantages 4pcs P4 high speed bearings, dynamic balance, high-precison nut and chuck, it can better ensure the accuracy of the spindle. It's not easy to oxidize and rust with the water-cooling design, and pure copper galvanized nozzle. - About The Design dvantages of The Spindle Motor The design of the dust-proof cover on the front of the spindle and the use of stainless steel body can effectively prevent dust, water and rust. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09KKY1TGB | | Best Sellers Rank | #429,702 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #43 in Power Milling Machine Replacement Parts #5,112 in Power Tool Replacement Parts | | Brand | RATTMMOTOR | | Brand Name | RATTMMOTOR | | Customer Reviews | 5.0 out of 5 stars 7 Reviews | | Horsepower | 3 Kilowatts | | Item Weight | 8.5 Kilograms | | Manufacturer | Changsheng | | Model | GDZ100-3.0 | | Part Number | GDZ-100-3.0 | | Speed | 24000 RPM | | Voltage | 220 Volts | ## Product Details - **Brand:** RATTMMOTOR - **Model name:** GDZ100-3.0 - **Speed:** 24000 RPM - **Voltage:** 220 Volts - **Horsepower:** 3 Kilowatts ## Images ![RATTMMOTOR CNC Spindle Motor, 3KW Water Cooled Spindle Motor 220V 12A ER20 Spindle 4-Bearings 100mm Spindle Motor 400HZ 3-Phase for CNC Router Engraving Milling Machine - Image 1](https://m.media-amazon.com/images/I/71aJPePn8yL.jpg) ![RATTMMOTOR CNC Spindle Motor, 3KW Water Cooled Spindle Motor 220V 12A ER20 Spindle 4-Bearings 100mm Spindle Motor 400HZ 3-Phase for CNC Router Engraving Milling Machine - Image 2](https://m.media-amazon.com/images/I/81GgrFLlmrL.jpg) ![RATTMMOTOR CNC Spindle Motor, 3KW Water Cooled Spindle Motor 220V 12A ER20 Spindle 4-Bearings 100mm Spindle Motor 400HZ 3-Phase for CNC Router Engraving Milling Machine - Image 3](https://m.media-amazon.com/images/I/81xkpcBt8WL.jpg) ![RATTMMOTOR CNC Spindle Motor, 3KW Water Cooled Spindle Motor 220V 12A ER20 Spindle 4-Bearings 100mm Spindle Motor 400HZ 3-Phase for CNC Router Engraving Milling Machine - Image 4](https://m.media-amazon.com/images/I/81PEu+UBaAL.jpg) ![RATTMMOTOR CNC Spindle Motor, 3KW Water Cooled Spindle Motor 220V 12A ER20 Spindle 4-Bearings 100mm Spindle Motor 400HZ 3-Phase for CNC Router Engraving Milling Machine - Image 5](https://m.media-amazon.com/images/I/811bOWKb-2L.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Is the #4 ground pin wired to their ground the body of the spindle? Discussion in forum's are saying some spindles aren't grounded.** A: Although I don't know, I have today seen pinouts for this genre of router that says 3 of the pins are connected to outputs U, V, W of the VFD, leaving one pin left. If that pin IS connected to ground, then the spindle will be able to used with a Z-Heightsetter connected to the machine to sense when electrical contact is made between the tool and the setter. My guess is "Yes." If you want to be sure, get a voltmeter and check the continuity between the ground of the CNC machine's power supply and the body of the mounted spindle. It should show continuity, that is resistance = 0 ohms. **Q: How does this compare to the Huanyang?** A: Dear friend, first of all,thanks for your interested, if you said ,that is HuanYang brand Spindle motor, this spindle motor the quality more than HuanYang brand, you can buy one motor and test the quality, Kind regards Linda **Q: What size wrenches do I need for shaft and collet?** A: Use ER20-A type wrench **Q: Is this suitable for milling carbon steel?** A: This is the first mention I've seen that this class of machine is suitable for milling steel. It's typical represented for use with wood and aluminum. As noted elsewhere, the slowest rpm is too fast for steel. ## Frequently Bought Together - RATTMMOTOR CNC Spindle Motor 220V 3KW Water Cooled Spindle Motor 24000RPM 12A ER20 Spindle 4-Bearings 100mm Spindle Motor 400HZ 3-Phase for CNC Router Engraver Milling Machine - RATTMMOTOR 100mm CNC Spindle Motor Clamp Mount Bracket with 3pcs Screws for CNC Router Engraving Milling Spindle Motor --- ## 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.hr/products/387114893-rattmmotor-cnc-spindle-motor-3kw-water-cooled-spindle-motor-220v](https://www.desertcart.hr/products/387114893-rattmmotor-cnc-spindle-motor-3kw-water-cooled-spindle-motor-220v) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-06*