Granite Square

Material:Black Granite used to measure verticality Planar degree and straightness of workpieces Reasonable price Product: Granite Square  1)High-precision 2)Against rust 3)Bear the acidification 4)Excelleng resistance-wear 5)Keep relatively high precision under heave l

Material: Granite mainly consists of pyroxene,pkaguickase,a small amount of olivine ,biotite and micromagetite.Its structure is hard and compact.It has solidified in a natural way over millions of year resulting in his hogeneity ,reliable stability,high strength and super hardness .It can keep relatively high precision under heave load.Its suitable for measuring applications in factories and laboratories.

Applications: Used to measure verticality ,planar degree and straightness of workpieces.

Salient Features:

 1 Millions of natural aging, organiazational structure ,tiny linear expansion cosfficient and no stress make the precision super

 2 Super rigidity, high hardness and great resistance-wear

 3 Dot oiling ,longusing life and easy maintainability

 4 Keep datum precision in normal tempreture.

  5 No magnetized,no sluggishness,and not be effected by enviroment.

Granite measuring tools have the following characteristics

1. high precision reliable stability resistance to deform and guaranteed accuracy under normal ambient temperature.

2. No-rust and anticorrosion

3. wear resistance long service life

4.any working surface cutting or scratching dose not bring about rough edges which  might influence its measuring presicion.

5. nonmagnetization.

6. gloosy surface without sluggishness when the workplaces or tools are moving on it .

The standard size products are in store.And we can also make it as your requirement.

Type (mm)	Squareness betweenadjacent measuring surfaces		Straightness of measuringsurface		Parallelism betweenOpposite measuring surfaces
	Precision grade (μm)
	00	0	00	0	00	0
160 × 160	2	4	0.8	1.7	2	4
200 × 200	2	4	0.9	1.8	2	4
250 × 250	2.2	4.5	1	2	2.2	4.5
300 × 300	2.6	5.2	1.1	2.3	2.6	5.5
400 × 400	3	6	1.3	2.6	3	6
500 × 500	3.5	7	1.5	3	3.5	7

     

Granite Square