Spray Painting Robot Applications

Where robots earn their keep

Robots pay back where the gun must follow a surface: automotive trim and interior parts with deep draws, appliance housings with edges and recesses, furniture and wood doors with moulded profiles, and sanitary ware with compound curves. In each case the alternative — several fixed guns or manual touch-up — either misses areas or adds labour per part.

Robots also earn their keep in mixed production. A cell that coats five part families with stored programs replaces what would otherwise be several dedicated machines, and a new family is a teaching exercise, not a purchase.

Where fixed machines win

Flat panels, simple shells and any part whose sprayed faces share one orientation are cheaper on axis or reciprocating machines. If your parts never change and volume is high, the fixed machine's simplicity wins on purchase price, maintenance and programming alike. The honest comparison is per part coated, over the machine's life, including changeover time.

Application checklist

List your part families and their shape complexity, your changeover frequency, and whether any face cannot be reached by a vertical gun. Two or more complex families with weekly changeovers is the usual threshold where a robot quote deserves a serious look.

A note on part presentation

Every application above shares one condition: the robot can only coat what the fixture presents repeatably. Application surveys often skip this, but in practice more robot projects are limited by fixturing than by the arm. Budget design time for fixtures per family, and expect the first family's fixture to teach you what the rest need.

How to brief a robot application

A useful robot inquiry names the application in production terms: the parts (drawings or photos with sizes), the coating and finish specification, the daily volume per part family and the takt the cell must hold. With those four inputs, an engineer can say whether the application belongs on a robot at all, which reach class it needs and what the cell around it must include. Applications briefed as 'we want a robot for our parts' without the part data come back as generic brochures; applications briefed with parts come back as costed cells.

If two applications compete for one cell — say housings on weekdays and doors at weekends — say so. The cell can be specified for both, but only if the reach, booth and fixture plan know about the second job from the start.

Buyer questions

How do I get a configuration for my parts?

Send part drawings, coating type and output target through the inquiry page; the reply will confirm the configuration and quotation.