Solution

Smart lawn mower

Lin Chaoda Brushless Motor
Smart Robotic Mower BLDC Solution

High-Torque · IP67 Waterproof · All-Weather — Engineered for autonomous lawn care with robust 3‑phase brushless motor technology.
85% efficiency
IP67 sealed
Sensorless FOC
35 N·cm torque
Lin Chaoda
Power inside
1. High-Torque 3-Phase BLDC for Mowing Applications
 

High Torque Density

Lin Chaoda brushless motor for smart mowers adopts optimized 12N14P 3‑phase BLDC topology with high copper fill (≥78%). 0.35mm low-loss laminations provide exceptional low-speed torque for cutting dense grass. Rated torque 35 N·cm at 3000 rpm, stall torque up to 90 N·cm ensures reliable blade operation even on uneven terrain.

Overload capacity +150%
 

IP67 All-Weather Protection

Fully sealed housing with stainless steel shaft and double-lip oil seals. IP67 rating guarantees operation in rain, wet grass, and high-pressure washing. Encapsulated stator windings prevent moisture ingress and corrosion, providing reliable service life in harsh outdoor environments.

Waterproof & dustproof
Torque density optimization: \( T_{max} = \frac{3}{2} \cdot p \cdot (\psi_{PM} \cdot I_q) \) → Large magnet flux & high current capability → superior load handling for robotic mowers.

Every Lin Chaoda robotic mower motor undergoes salt-spray testing and thermal cycle validation, ensuring years of maintenance-free outdoor operation.

2. Smart Sensorless FOC & Load-Adaptive Control
 

Sensorless Field-Oriented Control

Advanced sensorless FOC with adaptive observer enables silent, smooth torque even at near-zero speed. Real-time load detection automatically increases current when blade encounters thick grass, preventing stalls. Dynamic response <20ms ensures consistent cutting speed across varying lawn densities.

Adaptive torque boost
 

Intelligent ESC & Safety Features

Embedded ESC with active freewheeling, over-current and over-temperature protection. Stall detection triggers reverse rotation to clear blade jams. Supports PWM, UART, and CAN interface for seamless integration with robotic mower navigation systems. Low standby power < 0.5W extends battery life.

15,000h MTBF
3. Thermal Management & Mechanical Robustness
 

Efficient Heat Dissipation

Integrated aluminum heat sink and internal airflow channels keep winding temperature below 85°C at continuous rated load (ambient 40°C). Thermal modeling ensures consistent performance during long summer mowing sessions without power derating.

 

Vibration & Noise Reduction

Dynamic balancing (ISO 1940 G2.5) + precision ground gears drastically reduce vibration. Acoustic noise ≤55 dB(A) at nominal speed — neighbor-friendly mowing. Double-shielded bearings with high-grade grease extend maintenance interval to 5 years.

Quiet operation
4. Benchmark: Lin Chaoda BLDC vs. Conventional Mower Motors
Parameter Standard Brushed Mower Motor Lin Chaoda Robotic Mower BLDC Improvement
Peak Efficiency 62% 85% +23 p.p.
IP Rating IP44 (limited) IP67 Full immersion protection
MTBF (hours) 3,000 h 15,000 h +400%
Weight (40W class) 380 g 265 g -30%
Operating Temp. Range -10°C ~ 50°C -20°C ~ 65°C Wider range

Higher efficiency translates to extended runtime per charge — up to 50% more grass cutting area compared to traditional DC motors.

Tailored for Your Robotic Mower

Custom shaft length, IP69K option, hall sensor version, and different winding KV. Lin Chaoda supports OEM/ODM projects from prototype to mass production.

info@mpnset.com +86 138 2875 1702 www.xsteady.com
Engineering samples & ruggedness test reports available. Contact Lin Chaoda team for integration support.
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