ROTA MACHINERY MANUFACTURING CONTRACTING - Manufacturer and service provider of painting and pretreatment lines and machining

Our continuous type ovens can be produced as belt tunnel type, internal return (U) type or with span conveyor. Our ovens have the indirect heating thermo-block system with convection heat transfer. It can be manufactured according to power supply sources like electricity, gas or liquid fuel. The inner surfaces of our ovens’ panels are produced with galvanized sheet and the outer surfaces are produced with galvanized sheet steel coated with electrostatic powder paint. Considering the application temperature, the required thickness (usually 160 mm) is determined and only rock wool is used for insulation. Air curtains in the furnace are placed inlet and outlet of the oven to minimize heat loss while increasing the efficiency.

Penetrant non-destructive testing method is a system that is used for the detection of cracks in the surfaces of parts. After the material which is going to be subjected to penetrant test is pre-cleaned, it is subjected to penetrant application as dipping or spray. After this process, the material is rinsed and dried. Powder “developer” is applied electrostatically on the dried material. Finally, possible cracks and faults on the material are detected by checking under the UV lamp.

Powder and Wet paint equipment must be determined and selected carefully according to the properties of the parts to be painted. In our systems, we use the highest quality, most efficient and most reliable, manual and automatic powder and wet paint guns, single and multi-axis robots.

Conveyors that we use for painting plants and various transfer lines are the most important parts of the automatic systems. Commonly used Webb, Kardan and Power & Free type conveyors are projected and put into used by us. Semi-automatic conveyor lines are also produced for lower production capacities.

Our wet painting booths are manufactured as standard or custom design according to the customer’s needs. For the cabin selection, the dimensions of the parts and the targeted capacity are the determining elements. Our booths are made of stainless steel or galvanized sheet and fully assembled with bolts. In our wet painting booth with solid filter, the air is sucked through the filters by exhaust fans while the unused wet paint is held by paper or fiber filters. And the clean and healthy environment is created by supplying the fresh air to the environment. Teflon (non-stick), solvent based and water based paint applications can be applied in our wet painting booths. We also design Flash off and Positive Pressure rooms for our wet paint plants. In flash off rooms, solvent separation process of painted parts is done. The solvent that released in these rooms is removed by exhaust fans and a healthy working environment is obtained.