Robotic Finishing Solution
We built a robotic liquid painting line for the client to finish large-sized products with dimensions up to 3650 × 1550 × 1200 mm. At the heart of the solution is a Kuka robot with a working reach of 3.9 m, together with three conveyors and a sandwich-panel paint booth served by a dedicated ventilation unit with a plate heat exchanger, and GRACO painting equipment is in use. The result is a finish of consistent and repeatable quality, where the GRACO HG6000 fluid metering set prevents the occurrence of defects by detecting paint flow discrepancies and stopping the robot. Operator safety is ensured by access door interlocks, light curtains and cameras.
Project challenge
The robotic finishing line was expected to provide the capability to coat large-scale products with dimensions of up to 3650 × 1550 × 1200 mm with a uniform layer, avoiding quality risks arising from the human factor. It was also necessary to ensure operator safety within the robot's operating area and controlled air exchange in the paint booth.
How we built it
At the heart of the solution is a Kuka robot with a reach of 3.9 m, together with three conveyors and a finishing booth served by a dedicated ventilation unit. Incoming products are measured for both height and length, and the package position is automatically transmitted to the robot. The paint room is constructed from sandwich panels, which allows the ventilation unit to be installed on the roof with maintenance access provided via a ladder.
- Kuka robot with a reach of 3.9 m and three conveyors (infeed, outfeed and chain conveyor)
- Infeed and outfeed conveyors 5 m in length, equipped with a hydraulic lifting mechanism and safety barrier
- A 6 m long chain conveyor located beneath the robot with floor grilles
- Safety system: access door interlocks, light curtains and cameras
- Extraction from floor pits and supply air through supply air boxes located under the ceiling
- Ventilation unit with automatic control and a plate heat exchanger
- GRACO painting technology
What we achieved
- Finishing of consistent and repeatable quality for large-scale products up to 3650 × 1550 × 1200 mm
- The GRACO HG6000 metering kit prevents defects — if a paint flow discrepancy is detected, an alarm is triggered and the robot is stopped
- Operator safety ensured by access door interlocks, light curtains and cameras
- Controlled air exchange with automatic control and a plate heat exchanger
Galerii
FAQ
Frequently asked questions
How large products can be finished on the robotic finishing line?
How is operator safety ensured in the robot's working area?
How is defect prevention handled during finishing?
What is the line's ventilation and air exchange solution?
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