Tunnel Washers - How It Works
Tunnel Washers for the Bio-Pharm Industry
General Tunnel Washer Operation
Three section Tunnel Washers (detergent wash, recirculated rinse and final rinse) are the most commonly requested designs, however, the use of a pre-rinse section may be required for heavy product residues.
Operational overview of a 4-section washer:
- Soiled product containers are conveyed through the Pre-Rinse (PR) section to loosen and flush off heavy particulates.
- The Detergent Wash (DW) section loosens and sprays off the remaining product residue.
- The Recirculated Rinse (RR) removes most of the residual detergent solutions from the product containers and overflows to Pre-Rinse (PR) if present.
- The Fresh Water Rinse (FR)removes the remaining detergent film and overflows to Recirculated Rinse (RR) to conserve water.

|
| |
“CDI has worked with Sani-Matic on several projects over the past few years. We have always been pleased with the quality, workmanship and attention to detail.”
Steven Walter
Lead Process Mechanical Engineer – CDI Life Sciences |
| |
 |
 |
|