Karcher
What is the Karcher collection for solar maintenance?
The Karcher collection brings together technical cleaning solutions for photovoltaic fields: rotary and fixed brushes with soft bristles, lightweight telescopic poles, water supply equipment, and osmosis/demineralization systems to remove dirt, dust, pollen, and residues without leaving marks. Designed to preserve the glass and module seals, it maximizes energy capture and ensures a fast, repeatable process on rooftops or ground installations.
Advantages and limitations
- Robust and modular equipment with long-reach poles and soft brushes suitable for tempered glass.
- Cleaning with demineralized water to prevent stains and performance losses.
- Time optimization: greater working width and controlled flow rate for extensive coverage.
- Limitations: avoid high-pressure jets at close range or abrasive products; respect maximum loads on modules and height safety regulations.
Applications
- Preventive maintenance of solar panels in residential, industrial, and ground-mounted plants.
- Cleaning of canopies, glass facades, and smooth exterior surfaces.
- Professional O&M services seeking productivity and consistent results.
How to choose your Karcher solution
- Reach: select the telescopic pole according to the height/slope of the roof and access points.
- Brush type: soft bristles for PV glass; rotary for large surfaces, fixed for precise maneuvering.
- Water: prioritize osmosis systems or deionizing resins when mains water has high hardness.
- Flow rate and method: define continuous flow (l/min) and working width to balance coverage and consumption.
- Safety: consider harness/lifelines and compatibility with the existing structure.
Indicative specifications
| Cleaning method | Demineralized water + soft brush (rotary or fixed) |
| Pole length | Up to roof/plant reach (depending on model) |
| Recommended flow rate | ≈ 2–8 l/min depending on brush width |
| Water quality | Low conductivity (< 30 µS/cm) to avoid mineral films |
| Working pressure | Moderate and controlled; avoid high pressure at close range |
| Compatibility | Tempered glass and module frames; suitable for rooftops and ground installations |
Best practices
- Wash during cool hours to avoid rapid drying and thermal shadows; pre-rinse if there is heavy dust.
- Do not use aggressive detergents or high-pressure nozzles; keep the angle of the brush and the load on the glass to a minimum.
- Plan work routes, signage, and PPE; check anchor points and safe access.
- Schedule maintenance according to the environment (agricultural dust, pollen, birds, marine) and performance monitoring.
Comparisons and quick selection
- Fixed brush: fine control on modules with obstacles or narrow corridors.
- Rotary brush: higher productivity on large surfaces and ground-mounted plants.
- Osmosis/deionization: essential with hard water for a spotless finish.
Accessories and related collections
With Karcher you optimize photovoltaic cleaning with safe, fast tools designed to preserve glass and seals, restoring production and extending the system’s service life.
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