Customised surface finishing solutions
Expert testing for perfect results
Comprehensive support for all processes

Sample processing tailored to your requirements
At Walther Trowal Ltd, we offer a free sample processing service from our Birmingham test lab, ensuring your components achieve optimal results with precision and care.
Why choose our sample processing services?
Finding the perfect way to process or coat your components can be a challenge, but that’s where Walther Trowal steps in. From our Birmingham-based test lab, we develop surface finishing processes for your components. Process trials can also be conducted in larger or specialist machines in our German test lab too. Our experienced process technicians work closely with you, using your components and an understanding of your surface finish needs. You are also welcome to visit for a demonstration of the machines and process. With over 90 years of experience in surface preparation, we ensure your components are finished to the highest standards, helping you stay productive, profitable, and competitive in your industry.

How our process works
Our approach to sample processing is thorough and collaborative. First, we ask you to help complete a detailed question sheet and provide a small quantity of your sample components for testing. These are then assessed in our state-of-the-art test lab, where we develop the ideal conditions for processing. Whether it’s mass finishing, blasting, or coating, we adjust every step to suit your individual requirements. Our goal is to create a complete solution that ensures uniform results, reduces costs, and enhances the quality of your finished components.
Specialised test labs for every need
We’ve designed our test labs to cater to a wide range of processing needs. Our Test Lab for Surface Technology focuses on mass finishing processes, ensuring your components are treated with precision and care. Meanwhile, our specialist Test Lab in Germany for Small Part Coating specialises in developing the perfect coating processes for decoration, adhesive, or lubrication applications. We also have a dedicated test lab in Germany for the THM continuous shot blast machines. All testing will co-ordinated with the UK by the UK team. By combining your sample components with our expertise, we deliver tailored solutions that meet your exact specifications. Get in touch to find out more.


Achieving the best results, together
Collaboration is at the heart of our sample processing services. To ensure we deliver the best possible results, we rely on your input and support. By carefully completing the question sheet and providing sample workpieces, you enable us to develop a process that’s perfectly aligned with your needs. Our team of experts is here to guide you every step of the way, ensuring your components are processed or coated to the highest standards. Together, we can achieve outstanding results that enhance your productivity and competitiveness.
Contact Us to arrange your free process trial
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