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Design Case : Perimeter Wire Free Robot Lawn Mower

Jiaming CaiJuly 6, 2023

Market Growth of Robotic Lawn Mowers

Urbanization and the expansion of green spaces globally have catalyzed a rapid development in the market for robotic lawn mowers. From municipal landscaping to residential and commercial areas, the demand for these automated helpers is steadily growing by an annual rate of 5% to 10%. This has led to the increasing popularity of boundary-less robot lawn mowers.

Traditional Lawn Mowing versus the New Age of Automation

Previously, traditional lawn mowing methods required cumbersome manual wire installation, which was prone to errors. Today, the boundary-free lawnmower solution presents an entirely new control experience. Equipped with differential control technology, these machines can adapt to various terrains and handle a wide range of challenges, whether they are tracked or wheeled.

This all-terrain adaptability not only boosts the mower’s performance but also offers users a broader range of applications. Modern boundary-free lawn mowers exhibit a 30° slope-climbing capability and a 22cm cutting width, along with adjustable cutting heights (2-10cm) and operating speeds (0.2-0.5m/s). The flexibility to develop custom mowing programs to meet specific needs augments user satisfaction and further propels advancements in lawnmower technology.

Enhancements in Lawn Mower Technology

Some boundary-less lawnmowers now employ self-positioning technology and automatic coverage planning features, thus significantly improving mowing efficiency. Users can remotely control the mower through a mobile application, creating a virtual boundary map. These smart lawnmowers automatically perform comprehensive coverage planning based on the user-defined work area, restricted zones, and pathways, thereby eliminating the need for traditional boundary wire setup and resolving incomplete coverage issues due to random collisions.

Efficiency and Safety

Compared to traditional random collision lawnmowers, those equipped with intelligent positioning and planning can boost efficiency by over 80%, resulting in a neater lawn. Furthermore, these robot lawnmowers incorporate safety measures such as overload protection and undervoltage protection, ensuring reliable operation.

Cost-effective Solutions

With an estimated price range between $1500 and $2500, smart lawnmowers offer a competitive option for budget-conscious users who yearn for the convenience of a smart lawnmower. This pricing strategy favors those in the market looking to get more bang for their buck.

Multi-sensor Fusion Positioning Technology

Advanced boundary-less intelligent lawnmowers utilize multi-sensor fusion positioning technology to address issues such as RTK failure and jumps, thus providing accurate and continuous positioning results. Through data fusion from RTK, IMU, and wheel speed sensors, these lawn mowers achieve positioning performance with an accuracy of up to 2 centimeters and a frequency exceeding 50Hz.

The Future of Lawn Mower Technology

The growing consumer demand for convenience, efficiency, and intelligence fuels intense competition in the lawnmower robot market. Although the lawnmower robot market is still in its early stages of development, it is expected to continue expanding with technological advancements and increased consumer awareness. According to statistics, the global lawnmower robot market size exceeded 8 billion yuan in 2019 and is projected to reach over 20 billion yuan by 2025. This trend indicates the promising future prospects of the lawnmower robot market, led by higher-end and smarter products.

How to Choose Motor for Lawn Mower

PG42 – 42mm Planetary Gear Motor

42mm planetary gearbox motor
  • Size: 42 * L (mm)
  • Rated Power: up to 150 W
  • Rated Voltage: 12 – 48 V
  • Rated Speed: 5 rpm – 300 rpm
  • Weight: 650 – 700 g
  • Package Size:310*265*65mm 20pcs/CTN
ModelVoltageRated RpmRated CurrentRated TorquePowerStall TorqueTest Report
PG42775123000-3.7K12V694.31.539A0.151N.m11W0.915N.mClick here
PG427753618000-19.2K36V915.514.80A3.75N.m359.2W25.25N.mClick here
PG42BL42184500-3.7K18V986.42.467A0.269N.m27.81W1.543N.mClick here
PG45BL42128000-25K12V246.33.242A0.74N.m19.01W3.30N.mClick here


  • Size: 37 mm
  • Rated Power: up to 30W
  • Rated Voltage: 3V-24 V
  • Rated Speed: 5 rpm – 2500 rpm
  • Weight: 100g – 120g
  • Package Size:6X31XH17cm 60pcs/CTN
ModelVoltageRated RpmRated CurrentRated TorquePowerStall TorqueTest report
GR-37246700-10K24V5403000.054N.m3W 0.168N.mClick here
GR-37125000-90K12V40400mA0.48N.m2W 1.34N.mClick here

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