The tunnel of pretreatment to spray to tape is a washing machine/pretreatment to spray constituted from and/or more stages (therefore the treatments can be multiple), connected to a series of blots of it (furnaces, cabins, etc.) connected between they to ring for through of an aerial conveyer, in order to compose a complete line of paint job.
Particularly it is employed on those manufatti that they cannot be hanging in vertical and where or therefore necessary to support same on a tape (the sgrassaggio, pickling, washing, washing pure water demi or demi, phosphating, disodissidazione, chromate treatment etc.)
The tunnels of pretreatment to spray generally are realized essentially from (possible varying to chosen of the Customer):

- Bathtub for the control of the liquid
- Thermal Covering
- Body advanced tunnel
- Slides of water-drainage
- Filters
- Sent Elettropompe of fluid to the rampe of spray
- Organs of interception and regulation
- Pipages of connection between collectors, pumps and bathtub
- Rampe of spraying door-nozzles
- Nozzles and fascette with attack
- Instruments for the visualization of the temperature and the pressure
- Riscaldatori bathes
- Termoregolazione
- Control levels
- Fan of aspiration vapors