Granite Inspection Surface Plate

Granite Inspection Surface Plate Material : Jinan Black Granite Flatness tolerance : Grade 000,Grade 00,Grade 0,Grade 1

Welcome to your enquiry for other specificationa.The largest size for production is 4000mm width and 100000mm length .

We also accept to do relevant processing on the plate ,such as drilling ,glue T-slot ,dovetail slot ,etc.(According to the drawing ,estimate the product .)

The "GOLD STONE" brand granite surface plate refers to the advanced standards of the developed countries ,and its flatness tolerance is in accordance with the GB/T 20428-2006 Surface Plate Standard :

Grade 000 (0.003xL+2.5)/4µm

Grade 00 (0.003xL+2.5)/2µm

Grade  0 (0.003xL+2.5)/ µm

Grade  1 (0.006xL+5)µm

Specifications and Precision grade as follows :

TYPE(mm)	Precision Grade
	Grade 000 flatness	Grade 00 flatness	Grade 0 flatness	Grade 1 flatness	Net Weight(kg)
300x200x50	0.9	1.8	3.6	7	9
300x300x70	1	1.9	3.8	7.5	19
400x250x70	1	2	4	8	21
400x400x70	1.2	2.3	4.5	9	34
630x400x100	1.3	2.5	5	10	77
630x630x100	1.3	2.5	5	10	121
800x500x130	1.4	2.7	5.3	11	159
900x600x130	1.5	2.9	5.7	11.5	215
1000x630x150	1.5	3	6	12	290
1000x750x150	1.6	3.2	6.3	12.5	345
1000x1000x150	1.8	3.5	7	14	460
1600x1000x200	2	4	8	16	982
1600x1600x200	2.4	4.8	9.5	19	1572
2000x1000x200	2.4	4.8	9.5	19	1228
2000x1600x250	2.5	5	10	20	2456
2500x1600x300	2.9	5.8	11.5	23	3684
3000x2000x400	3.3	6.5	13	27	7368
4000x2000x500	4	8	16	32	12280
4000x2500x500	4.4	8.8	17.5	35	15350

The "GOLD STONE"brand of granite measuring tools have the following characteristics:

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

2  No-rust and anticorrosion.

3  Wear resistance long service life.

4  Any cutting or scraching for working surface does not bring about roughedgeswhich might  influence its measuring precision.

5  Non magnetization.

6  Glossy surface  without sluggishness when the workpieces or tools are moving on it.

Granite Inspection Surface Plate