Electric Motor for Mower Robot
- GIAN delivers integrated brushless DC motor and gearbox solutions engineered for robotic mowers, excelling in climbing steep slopes, executing smooth steering, and precisely adjusting blade lifting height.
- Let’s discuss how our power system can be tailored to meet your specific needs (size, run time, gradeability, turning capability)
Core Motor Functions in Mower
Drivering
- Driver motor is an integrated inner rotor and gearbox.
- Powers wheels for all movement, climbs 35° slopes.
- Delivers torque for uneven ground and obstacles.
- Customized drive motors for 2WD and 4WD.
Steering
- Steering motor is an integrated outer rotor and gearbox
- Enables turning, pivoting, obstacle avoidance.
- Zero-turn and turning radius of 20–30 cm.
- Reduces overlap through controlled direction changes.
Cutting
- Blade motor is an inrunner BLDC motor.
- Rotates the blades at 2,000–3,000 RPM.
- Adjusts blade speed based on grass density or height.
- Overload protection or automatic shutdown.
Lifting
- Blade lift motor is an integrated inner rotor and gearbox.
- Raises or lowers the blade within 20mm-60mm.
- Automatic or manual height adjustment.
- Terrain response to avoid scalping uneven ground.
Traditional Handle vs. Robotic Lawn Mowers
Traditional Lawn Mower | Robotic Lawn Mower |
❌ Manual push or handle turn | ✅ Built-in electric motor for precise automated steering |
❌ Manual or engine-driven wheels | ✅ Drive motor (2WD/4WD), auto navigation over terrain |
❌ Fixed-speed operation, high noise | ✅ Quiet electric motor, smart speed control |
❌ Manual height adjustment via lever | ✅ Blade lift motor adjusts cutting height automatically |
| ✅ Adaptive terrain response |
Customer Case
- European garden intelligent equipment customer who wanted to upgrade to a new generation of robotic lawn mowers:
- Must adapt to uneven terrain
- Blade height should adjust in real time
- Maintain consistent mowing height
- Avoid "top cutting" on high spots
- We proposed an inrunner brushless DC motor integrated with a precision gearbox to drive the blade lift mechanism with high torque density and rapid response time, designed to integrate with customer’s terrain-detection algorithms.
- The motor was integrated with ultrasonic terrain sensors and electronic height control, allowing for automatic blade adjustment from 20 mm to 60 mm in less than 1.2 seconds.
Results
Metric | Before (Fixed Blade) | After (Lift Motor Installed) |
Scalping Incidents (%) | 12.4% | 1.1% |
Grass Height Variance (mm) | ±8 mm | ±2 mm |
Energy Consumption (W avg) | 14.5 W | 15.2 W (+4.8%) |