What motors are used in solar panel cleaning robots?

Most solar cleaning robots use three BLDC motor axes: two drive wheels on either end of the chassis, and a brush roller. Some add a traverse actuator. BLDC is preferred for long battery life, IP65 sealing and no brush dust near PV surfaces.

What voltage should I pick?

24V for compact rooftop or small-commercial robots; 48V for utility-scale field robots that need longer runtime per charge and lower current draw on cable runs.

Do you ship IP65 variants?

Yes. IP65 is the standard recommendation for outdoor PV cleaning duty, with sealed bearings, stainless shaft option and potted cable glands.

Can the controller communicate with the robot PLC?

Yes. CAN bus and RS485 Modbus are both supported. Most robot builders use CAN to integrate the motor drive into the robot's motion controller and diagnostics stack.

Application — Solar Panel Cleaning Robot

Brushless Motors For PV Cleaning Robots.

A solar panel cleaning robot typically has two drive wheel motors and a brush roller motor. All three need to run outdoors on battery, handle dust, survive temperature swings and complete their cleaning pass without draining the tracker-control battery. Shenghe BLDC motors with IP65 sealing and matched CAN-bus controllers are built for this duty.

24V / 48V battery direct drive
IP65 standard / IP66 optional
Planetary gearbox on wheel drives
CAN / RS485 controller interface

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Three Axes Per Cleaning Robot

Drive wheel (left): 50-300W planetary geared BLDC, closed-loop speed, Hall + encoder feedback
Drive wheel (right): Same as left, differential steering via independent speed commands
Brush roller: 100-400W direct-drive or low-ratio geared BLDC, speed or torque mode
Optional water pump: Small 24V BLDC for water-assisted cleaning variants
Optional tilt / traverse: Worm-drive BLDC for brush angle adjustment

Typical PV Cleaning Robot BLDC Spec

Parameter	Range
Voltage	DC 24V / 48V
Wheel motor power	50 — 300 W
Brush motor power	100 — 400 W
Protection	IP65 / IP66
Gear ratio (wheels)	10:1 — 50:1 planetary
Feedback	Hall sensor + encoder optional
Interface	CAN bus / RS485 Modbus
Operating temperature	-20 °C — +60 °C

Why BLDC Instead Of Brushed DC On These Robots

No brush dust near PV glass — maintenance-free for long cleaning cycles
85-92% efficiency extends battery runtime per charge
Closed-loop speed differential enables precise turning at the panel edge
IP65 sealing resists dust, humidity and wash water
CAN bus lets the robot controller read fault codes and speed feedback in real time
Long service life (20,000+ hours) matches the expected robot lifetime

Motor Bundle For Your Cleaning Robot?

Send wheel size, chassis weight, brush diameter, battery voltage and quantity. We propose a three-axis motor + controller set and quote direct from factory. Or request the catalog to evaluate wheel drive options.