Metrology Special Applications

metrology special applications

Firstly, GMT manufactures a complete range of standard granite and cast iron equipment for dimensional metrology. Our Metrology Division also manufactures special metrology products like master squares for alignment of machining centres, large size granite plates and granite base structures for Special Purpose Machines.

CUSTOM MADE PRECISION GRANITE MACHINE & REFERENCE BASES

GRANITE FOR METROLOGY

Certain minerals present in the granite are the cause of its typical colour. Also, the presence of these minerals on the working surface of a surface plate, or other metrology artefacts, can cause problems. If these minerals are very hard and brittle (quartz e.g.) they can wear quickly leaving pitted areas on the surface.

Similarly, it is an acknowledged fact that pure black granite from the Deccan plateau in South India is most resistant to wear. This does not mean that other colours do not have metrology characteristics. Furthermore, as granite is a natural material and, its properties can vary from vein to vein in the quarry, it is best to test the rough stone periodically for its properties. Another critical factor is that experts from GMT visit quarry to select and test, if necessary, the granite best suited for metrology.

Besides, granite used in special metrology applications is made from select granite with a uniform distribution of light and dark constituents. Also, in such granite the distribution of minerals is uniform, resulting in a homogenous appearance.

Texture : Fine
Specific Gravity : 3.08 g/cm3
Hardness : Scleroscope over 90
Modules of Elasticity : 9.0 to 12.0 x 105kg/cm2
Moisture of absorption : Nil

CUSTOM MADE PRECISION GRANITE MACHINE & REFERENCE BASES

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GRANITE BASE STRUCTURE FOR CONTACT LENS GRINDING MACHINE
GRANITE BASE FOR CONTACT LENS GRINDING MACHINE
GRANITE BASE AND STRUCTURE FOR LENS GRINDING MACHINE
STRUCTURE FOR LENS GRINDING MACHINE
metrology special applications
GRANITE BASE FOR GLASS GRINDING MACHINE
GRANITE TABLE FOR MARINE CRANKSHAFT INSPECTION
EXTRA LARGE GRANITE TABLE  – 12M LENGTH
IMAGE PROCESSING MACHINE WITH GRANITE BASE WITH COLUMN
IMAGE PROCESSING MACHINE WITH GRANITE BASE
TURBINE RUN OUT CHECKING SYSTEM
TURBINE RUN OUT CHECKING SYSTEM
metrology special applications
ENGINE BLOCK BORE ROUGHNESS CHECKING
GRANITE BASE FOR TOOL PRE SETTER
GRANITE BASE FOR TOOL PRE SETTER

WHY GMT METROLOGY SPECIAL APPLICATIONS?

Because our collaborative work with professors at IIT Madras resulted in the first Indian Standards for surface plate calibration, several decades later, GMT continues to maintain its focus on quality engineering excellence. As a result, the company has earned the trust of its customers and a premier place in the market.

As a result of GMT’s experience in the production of machine tools and dimensional reference equipment over six decades, we have the skills to manufacture a wide variety of special products for application in metrology.

Finally, please visit us at https://gmtmachinetools.blogspot.com – a new blog dedicated to all GMT customers…interact with our technical experts.

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