Wilson UH4000 universal hardness testers feature a cast steel frame and are designed specifically for harsh environments. The machines enable accurate hardness measurements to Rockwell, Vickers, Knoop and Brinell protocols. Hardness scales range from 0.5 to 250 kgf in the case of the UH4250 model, and from 3 to 750 kgf in the case of the UH4750 model.

A newly devised eight-position turret, designed to hold the desired combinations of indenters and objectives, contributes towards accelerating testing cycles in batch testing. The operator can test to a variety of test methods without the need for manual indenter/objective changes. A turret cover protects the measurement system and turret assembly against external influences and collisions, such as with test pieces. Integrated DiaMet software is intuitive to operate and makes testing easy, repeatable and automatic, says Buehler

The large T-slot stage on Wilson UH4000 hardness testers offers a clamping surface of 300 by 400 mm and high weight capacity, thus enabling the testing of heavy and big parts.

Buehler’s AutoMet 250 Pro and 300 Pro are semi-automatic grinder-polishers designed specifically for customers who need to process high sample volumes in demanding environments. One of the features making this possible is the unit's touchscreen interface. Programming features such as method storage and Z-axis controlled material removal allow for consistent results, regardless of the operator.

The AutoMet 250 grinder-polisher (without the designation ‘Pro’) offers push-button controls and digital readouts. AutoMet 250 and 250 Pro are designed for 203 or 254 mm diameter platens and sample diameters up to 40 mm, whereas the AutoMet 300 Pro accommodates 254 or 305 mm platens and sample diameters up to 50 mm.

A newly created ‘rinse and spin’ feature cleans polishing surfaces and platens at the press of a button. Further features, such as a retractable water hose, 360° bowl rinse and bowl liners, save time and effort in daily operations. The burst dispensing system, which can optionally be integrated into the system or used as a separate module, optimises abrasive usage to save on consumables spend.

Buehler also offers a line of compatible accessories, including splash guard, recirculation tank, and disposable bowl liners, along with consumables such as silicon carbide and diamond grinding discs, polishing cloths, and diamond suspensions and pastes.

In addition to the Wilson UH4000 and AutoMet systems, Buehler will be presenting a number of other products for grinding, polishing, sectioning and mounting of samples at Control 2019. The company’s offering includes sectioning machines, mounting systems, grinding and polishing machines, as well as Rockwell, Vickers/Knoop, Brinell and universal hardness testers.