ER11 48V 400W Brushed DC CNC Spindle Motor Kit
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Prices updated: 13 Oct 2026
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About this product
A 400 W brushed DC spindle motor kit with an ER11 collet holder, designed for engraving metal and non-metal materials on CNC machines. Its speed is selected by supply voltage, from about 3,000 rpm at 12 V up to 12,000 rpm at 48 V. Forced-air cooling supports long working hours, and it is driven by a PWM DC speed controller.
Specifications
- Operating voltage
- 12–48 V DC
- Power
- 400 W
- Speed
- 3000–12000 rpm
- Torque
- 500 mN·m
- Motor diameter
- 52 mm
- Overall length
- 185 mm
- Weight
- 0.9 kg
- Chuck diameter
- 16 mm
Frequently asked questions
How is the speed selected?
According to the listing, the speed follows the supply voltage: 12 V for 3,000 rpm, 24 V for 6,000 rpm, 36 V for 9,000 rpm and 48 V for 12,000 rpm.
Can it be connected directly to an Arduino pin?
No. It is a brushed DC motor that needs a PWM DC motor speed controller rated for its voltage and current. The microcontroller only provides the control signal.
