MalerRoboter (Painter Robot)
ConBotics GmbH · Finishing · Shipping since 2023
Last updated: 2026-04
Summary
The ConBotics MalerRoboter is a battery-powered, wheeled interior wall spray-painting robot that disassembles into four modules for transport through doorways and up stairs without a crane or elevator. It sprays primer and paint on interior drywall and plaster walls; corners, edges, ceiling work, and detail finishing stay with the painting crew. The MalerRoboter has been available for rental throughout Germany since April 2024, with 5 documented deployments across Germany and Singapore.
How it works on your site
Painting
The robot uses LiDAR and cameras to map room geometry and identify obstacles including doors, windows, and columns without pre-scanned models or BIM input. It sprays walls autonomously with a 50% overlap pattern while the operator monitors from a tablet, refills paint, and responds to errors. Painters finish corners, edges, and small surfaces manually after the robot completes its spray passes.
How it worked on other sites
Kassel government building renovation
Kassel government building renovationCommercial government building renovation · Kassel, Germany · 3,000 sqm interior walls
- 3,000 sqm sprayed at approximately 60 sqm/hr on a rush order with limited staff.
- "Rush order delivered in outstanding quality despite limited staff" (property manager).
- Crew split: robot handled wall spray coating; painters finished corners and edges manually.
Multi-year testing and advisory relationship
Multi-year testing and advisory relationshipSmall/medium painting contractor · Berlin, Germany · Multi-year, multi-project
- Approximately 20% material savings observed across multiple projects (operator observation).
- Quality described as "very convincing" by the operator.
- Operator identified limitations: spray sequence traversal gaps and unintended exposure detection.
Prototype field test
Prototype field testPainting contractor · Berlin, Germany · 2022 (prototype era)
- Tested on "old design" prototype, not current production version.
- Obstacle detection confirmed: robot "recognizes columns, windows and doors" (operator observation).
- Operator noted ergonomic benefits but flagged weight concerns and AI refinement needs.
Robot also used by
