4825 900W Brushless Motor – 12-42V for Drill, Grinder & Garden Tools
Versatile high-efficiency motor for electric drills, angle grinders, pre weeding machines, tea picking machines, hedge machines, and 6/8-inch chain saws.
KEY FEATURES
• 12-42V wide input – Compatible with 12V to 42V battery systems
• Ultra-low 0.8A no-load current – Excellent energy efficiency
• 900W peak power – Sufficient for drills, grinders, and chain saws
• 12,500 RPM no-load speed – Fast response for cutting and grinding
• 987mNm max torque – Reliable torque for demanding applications
• Rated torque 500mNm – Consistent performance under load
• Lightweight 391g – Easy integration into handheld tools
• 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 residential and agricultural 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) 4825 12-42 12500 0.8 36 7600 500 11 400 987 391 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：
4825 900W Brushless Motor
12-42V for Drill, Grinder & Garden ToolsVersatile high-efficiency motor for electric drills, angle grinders, pre weeding machines, tea picking machines, hedge machines, and 6/8-inch chain saws
Technical Specifications
Model4825Voltage Range12 – 42V DCNo-Load Speed12,500 RPMNo-Load Current0.8 ARated Voltage36VRated Speed7,600 RPMRated Torque500 mNmRated Current11 ARated Power400 WMax Power900 WMax Torque987 mNmMotor Weight391 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 ratedVersatile6+ applicationsWide Voltage: 12V to 42V
12V – 18VLight duty drilling · Trimming
Energy efficient operation18V – 36VStandard drill · Grinding · Tea picking
400W rated power36V – 42VHeavy drilling · Chain saw · Weeding
900W peak power · 987mNm torqueKey Features
- 12-42V wide input – Compatible with 12V to 42V battery systems
- Ultra-low 0.8A no-load current – Excellent energy efficiency
- 900W peak power – Sufficient for drills, grinders, and chain saws
- 12,500 RPM no-load speed – Fast response for cutting and grinding
- 987mNm max torque – Reliable torque for demanding applications
- Rated torque 500mNm – Consistent performance under load
- Lightweight 391g – Easy integration into handheld tools
- 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 residential and agricultural use
- Long life design – Rated for 2000+ hours of operation
Applications
Electric Drill Angle Grinder Pre Weeding Machine Tea Picking Machine Hedge Machine 6" Electric Chain Saw 8" Electric Chain Saw Garden 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 are the main applications for this motor?The 4825 is a versatile motor designed for electric drills, angle grinders, pre weeding machines, tea picking machines, hedge machines, and 6/8-inch electric chain saws – covering both power tools and garden equipment.What is the efficiency like at low throttle?With ultra-low 0.8A no-load current, the 4825 provides excellent energy efficiency, especially suitable for battery-powered tools requiring extended runtime.Can this motor power an 8-inch electric chain saw?Yes. At 36-42V, the 4825 delivers 900W peak power and 987mNm max torque, sufficient for 8-inch chain saw cutting applications.What voltage is recommended for angle grinder applications?For angle grinders, 36-42V provides 900W peak power and 12,500 RPM for fast material removal.Does the motor include a controller?The motor is sold separately. We can recommend compatible BLDC controllers with stepless speed regulation for various voltage configurations.What is the expected motor lifetime?The 4825 is designed for long life with 2000+ hours rated operation under normal working conditions.
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