High-Precision Roll Surfaces for a Wide Range of Industrial Requirements

Thai Industrial Rollers (TIR) is a leading Thailandbased manufacturer, supplier, and exporter of coated industrial rolls, as well as a specialist in reconditioning both its own rolls and damaged or worn units from customers. To meet the high quality requirements and demanding surface finishes of their rolls, the company chose to invest in WaldrichSiegen’s proven technology and reliability for their new facility, acquiring a ProfiGrind 5000 – 50 × 12000 PGC10/CP-U roll grinding machine.
“The machine will play a key role in the new plant,” says Emiljano Bibleka, the responsible Sales and Project Manager. “The customer is impressed not only by the machine’s performance, but also by the state-of-the-art technology on which it is built. This includes the hydrostatic grinding spindle and hydrostatic lubrication in all axes. These features ensure maximum precision while drastically reducing maintenance requirements. The grinding support, designed as a monobloc from a single casting, provides an exceptionally stable machine base, resulting in consistently high quality results with shorter processing times. Our measuring and inspection systems also impress across the board – such as the high-precision two-point measuring system for roll measurement, which delivers 360 values per revolution, from material removal and diameter to shape, roundness, and eccentricity, as well as the Eddy Current inspection system for reliably detecting open cracks and structural changes in the roll.” The machine will grind rolls with diameters of up to 1,600 mm, lengths of up to 12,000 mm, and total weights of up to 50 tons for both the steel and paper industries. “The rolls used in the steel and paper industries differ fundamentally in terms of material, surface finish, and application,” explains Emiljano Bibleka. “Steel rolls must withstand extremely high forces and temperatures, while paper rolls require a special surface finish to smooth and compact the paper webs.
Thanks to its outstanding technology and precision, our machine can reliably and accurately process both types of rolls – even though their surface and geometry requirements differ significantly."
The customer has already had very positive experiences with our machines. Two WaldrichSiegen roll grinding machines are already in operation at the existing production facility, impressing with their exceptional performance, low-maintenance operation, and robust design. “Thanks to our close collaboration with WaldrichSiegen, we are able to further strengthen our market leadership,” says TIR Managing Director Chakorn Assavavasin. “The new roll grinding machine will significantly increase our capacity.”