In manual powder coating, economic efficiency is determined not only by acquisition costs but primarily by color change effort, filter service life, and maintenance cycles. The Gema ClassicLine is designed specifically for this reality – provided it is operated correctly.
ClassicLine & Economic Efficiency at a Glance
| Feature | Practical Relevance |
|---|---|
| Cartridge filters (2 / 4 pieces) | Influences service life, cleaning intervals, and negative pressure stability |
| Jet filter cleaning | Reduces manual cleaning, but only efficient with correct settings |
| Collection container / Tray | Crucial for color change time and cleaning effort |
Typical color change (Benchmark, experienced user)
Filter area depending on version
Recommended cleaning
If you perform frequent color changes, you will save costs in the long term with 4-cartridge systems: lower filter load, fewer disruptions, and more stable extraction.
Recommended Exhaust Units for Efficient Operation
2 Cartridges + Collection Container 4 Cartridges + Collection ContainerEfficient Color Change – Recommended Workflow
- Stop coating, switch off ES device
- Remove residual powder from the collection container
- Clean the booth interior (dry cleaning)
- Clean injector, hose, and gun separately
- Replace filter cartridges during color change
- Fill with new color, perform test spray
Typical Cost Drivers – and how to avoid them
- Excessive filter cleaning → premature cartridge wear
- Irregular cleaning → increasing filter resistance
- Insufficient filter area → ES shutdowns
- Wet cleaning → damaged filter media
FAQ – Economic Efficiency & Maintenance
How long do filter cartridges last?
Depending on powder type, overspray, and care – often several months in single-shift operation.
Is the 4-cartridge version worth it?
Yes, almost always for frequent color changes or larger parts.
How often should cleaning be performed?
Basic cleaning daily, complete cleaning weekly.
What increases operational reliability the most?
Clean filters, stable compressed air supply, and documented maintenance.
Can I further reduce operating costs?
Yes – through a matched exhaust unit, correct cleaning parameters, and spare parts planning.
