Longitudinal
Polisher GR04

The longitudinal polisher ver. GR04 is designed to decrease grinding stress and surface residual stress after initial processes of turning, milling and grinding. The operation of our polishers is intuitive and controlled via a touchscreen application. The GR04 is the most advanced device in MTC’s portfolio.

What makes the GR04 an exclusive product available on the market is:

– automatic and longitudinal polishing process in which the contact between the specimen and the particular area of sandpaper is nonrecurring. During the polishing cycles the sandpaper rewinds continuously and the specimen is rotated,

– possibility of adjusting main polishing parameters such as: specimen rotation, polishing force, speed of longitudinal movement of sandpaper, active polishing length,

– possibility of use of 4 kinds of sandpapers – during the polishing process the polisher can switch between the four different kinds of sandpaper automatically,

– automatic cleaning of specimens after each polishing sequence,

– high efficiency and polishing speed,

– great work comfort, ergonomics and safety.

GR04 is able to polish specimens such as: cylindrical type A, B, flat type 1,2,3,4 (see below).
The polishing process is in accordance with ASTM E466, ASTM E606, EN 6072 and NADCAP.


Longitudinal polisher ver. GR04 is highly recommended when the time and number of polished specimens are important.

Versions of Longitudinal Polisher

Version SCS

Standard Cylindrical Specimen

Polisher is able to polish cylindrical specimen in different diameters and length (A & B cylindrical type according EN6072)

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Version ESCS

Extremely Small Cylindrical Specimen

Polisher is able to polish extremely small cylindrical specimen in different diameters and length (A & B cylindrical type according EN6072)

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Version ELCS

Extremely Large Cylindrical Specimen

Polisher is able to polish extremely large cylindrical specimen in different diameters and length (A & B cylindrical type according EN6072)

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Version FS

Flat Specimen

Polisher is able to polish flat specimen in different diameters and length (flat type 1,2,3,4 according EN6072)

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Version C

Custumized Longitudinal Polisher

We meet the unusual expectations of our clients. If you need changes to the suggested functionality of the device, we will do it for you.