R20 Autonomous Solar Panel Cleaning Robot

The R20 is an autonomous hanging robot developed for scheduled cleaning on compatible fixed-row, ground-mounted photovoltaic plants.

  • Cloud, mobile app and scheduled control modes
  • 4G and LoRa communication options
  • Self-running deviation correction
  • Maximum cleaning distance up to 4,000 m

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Product Details

01 · POSITION

Product positioning

  • Model: R20
  • Autonomous PV Cleaning System
  • Professional photovoltaic O&M equipment
  • Configuration matched to the actual project
02 · DATA

Quick parameters

Robot size
1900-5000 × 445 × 246 mm
Weight
≤49 kg
Payload
<14.8 kg/m²
Walking speed
0-24 m/min
Brush speed
150 RPM
03 · COMPATIBILITY

Purchase compatibility

Array fit
Designed for uniform fixed, ground-mounted PV rows rather than every array type.
Geometry limits
Gradient, row length and module dislocation must stay within the engineered project limits.
Charging choice
Use a dedicated PV panel or centralized charging according to the system design.
Project requirement
A row-layout and end-structure assessment is required before quotation.
04 · SUPPLY

Supply scope

  • Equipment configuration review
  • Voltage, plug and accessory confirmation
  • Operating documentation
  • Parts and training options

PRODUCT OVERVIEW

Why R20 is built for this job

Scheduled and remote cleaning modes

Designed to improve cleaning coverage and simplify routine operation.

4G / LoRa communications

Supports safer equipment control and a more consistent field workflow.

Self-run deviation correction

Helps match the equipment to site access, power and labor conditions.

Self-owned PV or centralized charging

Must be confirmed against the actual module geometry and operating requirements.

STRUCTURED PRODUCT DATA

R20 technical specifications

Use these catalog values for initial comparison. Final suitability requires confirmation against the actual array and operating conditions.

Robot size
1900-5000 × 445 × 246 mm
Weight
≤49 kg
Payload
<14.8 kg/m²
Walking speed
0-24 m/min
Brush speed
150 RPM
Maximum vertical dislocation
25 mm
Maximum horizontal dislocation
40 mm
Maximum gradient
<20°
Working temperature
0-50°C
Brush
PBT, 0.2 mm diameter
Maximum cleaning distance
4000 m
Battery
24 V / 20 Ah
Charging panel
70 W
Control
Cloud platform / mobile app

APPLICATIONS

Where R20 fits

Application fit depends on site geometry, access, soiling, utilities and the cleaning workflow.

01

Desert solar farms

Frequent scheduled dust removal on uniform fixed rows with limited operator intervention.

02

Large factory arrays

Repeated cleaning routes across long industrial ground-mounted installations.

03

High-density layouts

Autonomous operation where row geometry is consistent and access is planned for the robot.

MANUFACTURING & QUALITY

Control the product before it reaches the site

Production and quality requirements should be confirmed against the final model configuration and purchase specification.

Integrated manufacturing workflow

Structural components, electrical control, motor systems and final assembly are coordinated around the product design.

Parts inspectionAssemblyFunctional test

Configuration and quality review

Model, voltage, plug, accessories, operating environment and delivery documentation are checked before confirmation.

Specification reviewOperation checkDelivery record

WHY WATERSPRAYELEPHANT

More than a machine specification

01

Integrated product engineering

Mechanical, electrical and control development are coordinated for photovoltaic cleaning equipment.

02

PV-specific brush development

Brush material, contact behavior and wet or dry operation are engineered around solar-module cleaning.

03

Design-to-production coordination

Product design, component selection, assembly and functional checks follow one connected workflow.

04

Full-scenario technology base

Manual, powered, remote-controlled and autonomous platforms support different project scales.

DOCUMENTATION & VALIDATION

Build confidence before ordering

Product-specific certificates and named project outcomes should only be published after document and permission review.

Document package to confirm

  • Model datasheet
  • Final configuration record
  • Packing list
  • Operation and maintenance instructions

Project validation before purchase

  • Compatibility review
  • Sample or test plan where applicable
  • Acceptance checklist
  • Authorized case references when available

Content reviewer: WaterSprayElephant Product Engineering Team ·

PRODUCT FAQ

Frequently asked questions about R20

Is R20 suitable for every solar array?

No. R20 is intended for compatible fixed-row geometry. Module dislocation, row length, gradient and end-of-row structures must be reviewed.

How is R20 controlled?

The system supports on-site direct control, long-distance control and scheduled operation through cloud or mobile interfaces.

How does the robot charge?

Charging can use a dedicated PV panel or centralized charging, depending on the project configuration.

What pollutants can it clean?

The catalog lists dust, iron filings, sand grains and bird droppings. Actual cleaning effectiveness depends on adhesion, moisture and site conditions.

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