The stages of Photostatting are to be decided in consultation with chemical supplier.
often wherever production volimes are high and component sizes are standard spray phosphating plant is opted. The components loaded on conveyor pass through spray tunnel. Tunnel has internal piping and spray nozzles, and chemicals / water is circulated in piping by pumps. Each spray zone has tank and pump. The components pass through tunnel and after treatment pass through water drying oven. After drying the components get cooled down and enter in automatic or manual spray booth. Spray phosphating can be five stage / seven stage or more depending upon component surface quality.
The components are stacked in baskets and are dipped in various baths as per process and timing.the conventional hoist system has various drawbacks like maintaining bath timings, movement of baskets, baskets scratching the coating of tanks etc. Transporter system is plc based and it calculates the timings and move the baskets in time. As entry and exit is guided no scratching of basket with tank. One can also have more wagons on same rail if process demands it. Transporter system is flexible as it can release the basket in tank and go for other tank to pick up fresh load or transfer from one tank to another tank.
These are custom-designed phosphating plants built to suit your exact production volumes, process needs, and component specifications.