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Tru-Blue Grinder Polisher

Need accurate and repeatable microhardness test results? Looking to perfect the surface of your metal and alloy samples for microhardness testing? Introducing United Testing System’s Tru-Blue Grinder & Polisher!





The Tru-Blue GP is quick and easy to use, offers a corrosion resistant cover, and comes with dual disk design. To find out more about the technical components of our system, click here.

Want to find out more about the Tru-Blue GP? Get in touch with our team!

The Tru-Blue GP is available as a stand-alone instrument, can be added to an existing lab, or you can choose to use it alongside the brand-new Tru-Blue MicroVT – a state-of-the-art microhardness testing system.

Discover a full range of microhardness testing solutions
United Testing Systems is part of the Industrial Physics family, a global test and inspection provider. We have a wealth of experience providing first-rate Rockwell hardness testers and associated accessories.

Take a look at our suite of microhardness testing solutions – all designed to make it easier for you to get the results you need:

Tru-Blue MicroVT – our brand new microhardness tester
Tru-Blue Sample Mount Press
Tru-Blue Sample Cutter

Invest in the Tru-Blue collection to achieve accurate and repeatable microhardness testing results.

Dimensions:  27.5 in x 24.8 in x 15.7 in (70 cm x 63 cm x 40 cm)

Bench Weight:  110 Lbf (50 kg)

Ship Weight (w/ Accessories):  198 lbf (90 kg)

Motor:  0.55 KW

Wheel speed:  100 -500 rpm (adjustable)

Power:  220 Volt, 50 Hz

Disc diameter:  200 mm (250 mm optional)

Features & Benefits

Sturdy table model machine

Corrosion resistant cover

Quick & easy operation

Dual disk design with dual waterspouts

Forward/reverse modes

Digital RPM display

Fine adjustment RPM control knob

Easy to access plumbing and drain connections