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Since 1931 Walther Trowal has been developing and producing systems for the refinement of surfaces. Initially focusing exclusively on mass finishing – the term “Trowalizing” originated from the company’s cable address “Trommel Walther” – Walther Trowal has continuously expanded its product portfolio.
Over time the company has developed a broad range of machinery and systems for mass finishing, shot blasting and coating of mass produced small components.
With the invention of new systems like, for example, drag finishing and the development of special finishing methods for 3D printed components, the company has proven its innovative capabilities again and again.
Trowal develops and implements complete surface treatment solutions that can be seamlessly integrated into linked production systems existing at the customers. This includes the entire process technology, perfectly adapted to the specific surface finishing requirements of the work pieces: Equipment and the respective consumables always complement each other in a perfect manner.
Each individual work piece and each manufacturing process must meet special technical requirements. That is why the experienced process engineers in our test lab, in close cooperation with the customers, develop the optimal process technology for the finishing task at hand. The result: Work piece surfaces that meet exactly the required specification with short processing times and a high degree of consistent, repeatable results.

he company is specialised in projecting and manufacturing grain industry facilities and turn key projects. We build mainly:

• Seed processing plants
• Grain elevators
• Storage facilities
• Port terminals for in and out loading
• Cleaning and grain treatment lines, weighting and packing lines
• Groat mills
• Flour mills
• Pressing mill
• Oil extraction- screw presses
• Complete technical lines for biodiesel production
• Complete technical lines for bio ethanol production
• Feed mixers
• Shipping units
• Transport equipment: bucket elevators, chain conveyors, belt conveyors, screw conveyors
• Roasting plants
• Maltinghouses
• Shellers
• Dryers
• Other, like cleaners, gravity separators, dry stoners, demagnetizers

The company has existed since 1991, steadily increasing the scope of its activities and carrying out investments throughout Europe. The core of the company is a group of qualified engineers, skilled designers, technologists, and builders. Many years of experience and employees commitment including professional designer engineers contributed to dynamic company development and it is the reason of constant increase of number of our customers. High quality equipment, use the most modern, optimal designs and reliable performance installation allows us to enjoy the appreciation and trust of our customers.