In the railway sector, industrial washing and surface treatment of mechanical parts and metals is essential to ensure safety and reliability, as well as prolonged resistance. In particular, washing is carried out to remove oils, greases, dust, and other processing residues using spray systems, immersion with or without ultrasound. These processes prepare surfaces for subsequent treatments such as sandblasting, shot blasting, and phosphating. These processes improve coating adhesion and corrosion protection. Other treatments, such as painting, galvanizing, and passivation, are used to increase the durability of parts subjected to extreme environmental conditions. In the railway sector, the efficiency and quality of these processes are essential for compliance with the technical and regulatory standards of the industry.
Discover the characteristics of industrial washing in the Railway Sector.
WASHING CHARACTERISTICS IN THE RAILWAY SECTOR
We decided to create a selection process to better identify the washing or surface treatment solution.
Typical components
| Component | Washing method | Contaminants to remove |
|---|---|---|
| Railway axles | High-pressure spray, ultrasonic | Oils, greases, metallic residues |
| Railway wheels | Spray with alkaline detergents, pickling | Metal dust, oils, scale |
| Bogie frames | Tunnel washing, manual high-pressure | Grease, brake dust, sand, dirt |
| Bearings | Immersion, ultrasonic | Oils, greases, metal chips |
| Brake discs | Spray with neutral/alkaline detergents | Metal dust, oily residues, rust |
| Pneumatic valve bodies | Ultrasonic, immersion | Oils, chips, rubber residues |
| Traction motors (dismantled parts) | Low-conductivity detergents, dry CO₂ | Carbon dust, degraded insulating oils, copper dust |
| Gearboxes | High-pressure spray, alkaline detergents | Oil sludge, grease, metallic filings |
| Pantographs (removable parts) | Spray, dry ice cleaning | Conductive dust, carbon residues, oxides |
| Suspension components | Spray, immersion in alkaline solutions | Oils, greases, dust, oxides |
| Hydraulic/pneumatic pipes | Internal flushing, immersion | Oils, chips, oxides, dust |
| Radiators and heat exchangers | Chemical washing, high-pressure cleaning | Oils, limescale, oxides, carbon residues |
| Seats and interior structures | Spray with neutral detergents, tunnel washing | Dust, adhesives, oils |
| Air conditioning systems | Immersion, low-foam spray | Dust, oils, sealing residues |
| Fuel/oil tanks | Immersion, chemical washing, internal spraying | Sludge, oils, particulates, oxides |
Treatment characteristics and corresponding machines
| TREATMENT | SERIES | TYPE OF MACHINE | IMAGE | PRODUCTION/PIECE SIZE |
|---|---|---|---|---|
| Generic water-based low-medium pressure spray washing | Washing cabins SPRAYMASTER SERIES | SPRAYMASTER.TR Spray washing on rotating table |  | Low production for medium/large parts |
| Water-based washing/deburring Precise high-pressure spraying | Washing cabins SPRAYMASTER SERIES | SPRAYMASTER.TR.RR Spray washing and deburring on a rotating table |  | Low production for medium/large parts |
| Generic water-based low-medium-high pressure spray washing | Washing cabins SPRAYMASTER SERIES | SPRAYMASTER.CIL Spray washing on oscillating table with oscillating ramps |  | Low production for medium/large parts |
| Precise water-based spraying for complex geometries | Washing cabins SPRAYMASTER SERIES | SPRAYMASTER.FX Industrial spray and immersion washing for the complete cleaning of mechanical parts |  | Low production for medium/large parts |
| Immersion washing with water, alcohols, hydrocarbon solvents, with the option of ultrasound | Washing tanks TANK SERIES | TANK.AGT Industrial immersion washing with agitation |  | Low production volumes |
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