Granite Measuring Block

Granite Measuring Block

Granite measuring blocks Description: Granite precision measuring produced by our company adopts the high quality natural granite stone by machining and manual lapping . Black gloss, precise structure uniform texture, good stability. High strength, high hardness. They have the advantage of: no...

Product Details

Granite measuring blocks

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Description:

Granite precision measuring produced by our company adopts the high quality natural granite stone by machining and manual lapping . Black gloss, precise structure uniform texture, good stability. High strength, high hardness. They have the advantage of: no rust resistant to acid and alkali, not magnetic, the same type and good abrasion. They can remain stable under heavy load and general temperature. Granite slab is a precision reference measurement tool made of natural stone materials for instrumentation, precision tools, mechanical parts of the test, is the ideal plane. Especially for the measurement of high precision, because it is unique, and the cast iron plate dwarfs. Granite rock layer based on the underground of high quality, after millions of years of natural aging. Form extremely stable, from extremely stable, don’t worry about the deformation due to the normal temperature.

 

Applications: 

1.High precision reliable stability resistant to deform and guaranteed accurancy under normal ambient temperature.

2.No-rust and anticorrosion

3.Wear resistance long service

4.Any wording surface cutting and scratching does not bring about rough edges which might influence its measuring precision.


Specifications: 

TYPE (mm)

Flatness of working surface

Parallelism between V slot and bottom surfac

Parallelism between V slot and side surface

Symmetry between V slot & end surface

Squareness between V slot & bottom surface Squareness between V slot & bottom surface
Height difference of the V slot within a matched pair
Precision grade(μ m)

0

1

0

1

0

1

0

1

0

1

0

1

0

1

40 x 90°

1

2

3

6

3

6

5

10

5

5

3

6

4

6

63 x 90°

2

3

4

8

4

8

8

16

8

8

4

8

5

10

100 x 90°

2

4

4

8

4

8

8

16

8

8

4

8

5

10

160 x 90°

2.5

5

5

10

5

10

10

20

10

10

5

10

6

12

 

Remark: We can manufacture a variety of special granite measuring block according to your drawing or needs.


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