Shot blasting treatment

The specialized CARLO BANFI shot blasting equipment is used for treatment of steel plates and tubes as per standards Sa 2 ½ — Sa 3 (ISO 8501), thus guarantying the highest quality of treatment with application of modern priming between operations.

CARLO BANFI SPA is an Italian manufacturer of shot blasting units (designed to remove sand, scale, rust from the metal surfaces, providing necessary roughness), that are used at foundries, mechanical engineering and metallurgical plants.

The shot blasting line comprises the equipment as below:

• Shot throwing wheel, Lami 2,0/8TPIE/20 type.
• Dust separators with cartridge filters, “PS 28B” type.
• Turbine noise reduction system with aspirator type dust collectors.
• Steel plate and rolled steel pre-heating and drying chamber, “FP 2000” type
• Automatic paint line with filtering and drying systems, “CV 2000” type
• Drying tunnel 70Ñ/180.000 kcal, “TE 2000” type.
• Industrial roller conveyor (2000 mm wide, slope 600 mm, with blades, 10 m long)

There is also auxiliary equipment at the plant, i.e. traverse, electric hoist, conventional and magnetic grippers, compressor unit, etc.

The line is used for removal of scale and oxide from the rolled steel and plate surface. At the same time the surfaces are shot blasted. The cycle is continuous. The shot throwing chamber is made of wear-resisting steel and protected with removable plates made of the same material. The plates are located in zones of direct shot hit that requires absolutely no maintenance.

The shot throwing and painting line is designed for treatment of steel plates, 2,5 by 12 m size, 50 mm thick maximum.

The preheating chamber is used for preliminary drying of rolled steel and steel plates. Such chamber allows continuous drying of elements using hot air resulting from natural gas combustion. The line includes roller tables delivering steel sheets and rolled steel to the preheating chamber and further to the shot throwing wheel. The shot blasting process is monitored by means of a timer setting the proper time. The steel plates or rolled steel to be painted is delivered to the painting chamber by roller tables.