4815 550W Ultra-Light Brushless Motor – 12-42V for Drill, Grinder & Pre Cutting
Lightweight high-efficiency motor for electric drills, angle grinders, and pre cutting machines.
KEY FEATURES
• 12-42V wide input – Compatible with 12V to 42V battery systems
• Ultra-lightweight 208g – Lightest in 48 series
• 550W peak power – Reliable power for drills and grinders
• Ultra-low 0.9A no-load current – Excellent energy efficiency
• 780mNm max torque – Sufficient torque for most applications
• Rated torque 300mNm – Consistent performance under load
• CW/CCW bidirectional – Flexible rotation for different tools
• Locked rotor protection – Built-in stall protection
• Stepless speed regulation – Smooth speed control
• Low noise & low EMI – Suitable for workshop use
• Long life design – 2000+ hours rated
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隐藏域元素占位
- Product Description
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Characteristic: CW & CCW, Signal function available, Locked rotor protection, Stepless speed regulation, Low noise, Low EMI, Long life.
TYPE Voltage range Un-load Speed Un-load Current Rated Voltage Rated Speed Rated Torque Rated Current Rated Power Maximum Torque Motor Weight (V) （RPM) (A) (V) (RPM) (mNm) (A) (W) (mNm) (G) 4815 12-42 7000 0.9 18 5000 300 9 160 780 208 Notice: Data in this typical specification sheet are for other certain customer. Voltage, rated torque, speed, current, power and shaft extension feature & dimension can be changed to meet customer specific requirement.
OUTLINE DRAWING：
4815 550W Ultra-Light Brushless Motor
12-42V for Drill, Grinder & Pre CuttingLightweight high-efficiency motor for electric drills, angle grinders, and pre cutting machines
Technical Specifications
Model4815Voltage Range12 – 42V DCNo-Load Speed7,000 RPMNo-Load Current0.9 ARated Voltage18VRated Speed5,000 RPMRated Torque300 mNmRated Current9 ARated Power160 WMax Power550 WMax Torque780 mNmMotor Weight208 gNote: Data in this typical specification sheet are for reference. Voltage, rated torque, speed, current, power and shaft extension features can be customized to meet customer specific requirements.Key Characteristics
CW & CCWBidirectional rotationSignal FunctionSpeed feedback availableLocked Rotor ProtectionStall protectionStepless Speed RegulationSmooth variable controlLow NoiseQuiet operationLow EMIMinimal interferenceLong Life2000+ hours ratedUltra-LightweightOnly 208gWide Voltage: 12V to 42V
12V – 18VLight drilling · Light grinding
160W rated power18V – 30VStandard drill · Pre cutting
Balanced performance30V – 42VHeavy drilling · Heavy grinding
550W peak power · 780mNm torqueComparison: 4815 vs 4820
Which motor is right for your application?48154820Weight: 208g (lighter)Weight: 303gNo-Load Speed: 7,000 RPMNo-Load Speed: 18,000 RPM (faster)Max Torque: 780 mNmMax Torque: 1,042 mNm (higher)No-Load Current: 0.9A (lower)No-Load Current: 2.0ABest For: Lightweight tools, efficiencyBest For: High-speed applicationsKey Features
- 12-42V wide input – Compatible with 12V to 42V battery systems
- Ultra-lightweight 208g – Lightest in 48 series
- 550W peak power – Reliable power for drills and grinders
- Ultra-low 0.9A no-load current – Excellent energy efficiency
- 780mNm max torque – Sufficient torque for most applications
- Rated torque 300mNm – Consistent performance under load
- CW/CCW bidirectional – Flexible rotation for different tools
- Locked rotor protection – Built-in protection against stall damage
- Stepless speed regulation – Smooth, continuous speed control
- Low noise & low EMI – Suitable for workshop and residential use
- Long life design – Rated for 2000+ hours of operation
Applications
Electric Drill Angle Grinder Pre Cutting Machine Lightweight Power ToolsOEM Customization
- Voltage, torque, speed, and power customization
- Shaft length and diameter modification
- Connector type (JST, Molex, bare wire, custom)
- Mounting bracket and flange design
- IP rating (IP40 standard, IP54/IP65 available)
- Hall sensor integration for position feedback
- Planetary or spur gearbox integration
- Output shaft configuration for specific tools
Frequently Asked Questions
What makes 4815 different from 4820?The 4815 is lighter (208g vs 303g) with lower no-load current (0.9A vs 2.0A), making it more efficient and better for lightweight tools. The 4820 has higher speed (18,000 RPM) for faster cutting applications.Is this motor suitable for angle grinders?Yes. At 30-42V, the 4815 delivers 550W peak power, suitable for light to medium grinding applications. For high-speed grinding, consider 4820 (18,000 RPM).What is the advantage of the ultra-lightweight design?At only 208g, the 4815 reduces overall tool weight, improving user comfort and reducing fatigue during extended use.What is the efficiency like at low throttle?With ultra-low 0.9A no-load current, the 4815 provides excellent energy efficiency, especially suitable for battery-powered tools requiring extended runtime.Does the motor include a controller?The motor is sold separately. We can recommend compatible BLDC controllers with stepless speed regulation for 12-42V configurations.What is the expected motor lifetime?The 4815 is designed for long life with 2000+ hours rated operation under normal working conditions.
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