60A Brushless Angle Grinder Control Board 18-21V Speed Controller
60A Brushless Angle Grinder Control Board 18-21V Speed Controller
60A Brushless Angle Grinder Control Board – 18-21V Speed Switch Controller
Upgrade or replace the circuit board in your cordless angle grinder with this high-capacity 60A brushless lithium speed switch controller. Designed for 18–21V power tool systems, this control board delivers smooth variable speed management and up to 1200W maximum output power, making it an ideal DIY repair or upgrade component for woodworking and metalworking applications.
Built from a durable plastic and metal composite, this circuit board is engineered to handle the demands of brushless motor systems. Whether you're rebuilding a worn-out grinder or customising a power tool build, this controller provides reliable performance in a compact form factor.
Key Specifications
- Rated Current: 60A
- Input Voltage: 18V – 21V (lithium battery compatible)
- Maximum Output Power: 1200W
- Motor Type: Brushless
- Material: Plastic + Metal
- Includes: Speed control switch
- Made in Mainland China
What's in the Box
- 1× Angle Grinder Control Board (with speed switch)
Installation Guide
For safe and proper operation, please follow these steps in order:
- Connect the wiring harness first
- Secure and fix the motor in place
- Install the tool casing
- Tighten all screws firmly
- Verify that the square shaft rotates freely without any jamming
- Connect the power supply
- Press down the speed control switch ensuring there is no gap in the shell — failure to do so may result in a buzzing alarm
⚠ Important: Always follow the installation requirements to prevent damage to the control board. Skipping steps or incorrect assembly may cause operational issues.
Please Note
Wiring colour, base plate colour, or minor visual details may differ from product images. All variants are functionally identical. Colour may also vary slightly from photos due to monitor brightness and lighting conditions.
Related Products You May Like
- 10 in 1 Multi Functional Bone Wrench Hex Socket Spanner – Portable Repair Hand Tool
- 16 in 1 Multi-Function Bike Repair Tool – Portable Folding Hex Wrench Set
- A01F-DF-6 Handheld Electric Enameled Copper Wire Stripper 110V
Learn more: OSHA on eye and face protection
Frequently Asked Questions
Q: What voltage is this angle grinder control board compatible with?
A: This brushless speed controller is designed for 18V to 21V lithium battery-powered angle grinders. It is not suitable for mains-powered or higher-voltage tools outside of this range.
Q: Why is my angle grinder making a buzzing alarm after installation?
A: A buzzing alarm typically occurs when the speed control switch is not fully pressed down or there is a gap remaining in the shell casing. Ensure the switch is fully engaged and the casing is completely sealed before connecting power.
Q: Is this control board compatible with all brushless angle grinder models?
A: This board is a universal-style replacement designed for brushless lithium angle grinders operating at 18–21V with up to 1200W output. Please verify your tool's voltage, motor type, and connector configuration before purchasing to ensure compatibility.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.