Shanghai Chenghua Machinery Co., Ltd.
Main products:Cast Iron Straight Edge,Cast Iron Surface Plate
Products
Contact Us
  • Contact Person : Ms. Deng Jessica
  • Company Name : Shanghai Chenghua Machinery Co., Ltd.
  • Tel : 86-021-61670996
  • Fax : 86-021-61671871
  • Address : Shanghai,Shanghai,Room 2705,Soho.2 Building,No.388 Zhongjiang Road,Shanghai
  • Country/Region : China
  • Zip : 200333

Granite Surface Plates

Granite Surface Plates
Product Detailed
uniform texture, nice stableness, high intensity more stable, and wears longer industrial production&laboratory measurement

Salient Features:

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SURFACE PLATES are made of black granite which is stronger and denser than light colored granite, more stable, and wears longer.

The granite properties determine the stiffness of the granite and accuracies can be guaranteed with less thickness than other types of granite.

- This translates to less freight and handling whenever the plate is shipped or moved.

- The main mineral components of granite include pyroxene, plagioclase, a little olivine, biotie and trace magnetite.

- It is precise in structure with black luster and through hundreds of millions years aging.

- it is of uniform texture, nice stableness, high intensity and rigidity, and can maintain a high precision under heavy weight.

 

So granite is applicable to the works of industrial production and laboratory measurement.

- For high precision operations in temperature controlled gauging rooms and metrology departments

- For general quality control use

- For shop work and production checking 

 

Specification: 

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The precision of the granite surface plates is in line with the standards of advanced countries.Tolerance of planeness: Standard JB/T7975-1999Grade 000 = 1 × ( 1+d/1000 ) μmGrade 00 = 2 × ( 1+d/1000 ) μmGrade 0 = 4 × ( 1+d/1000 ) μmGrade 1 = 8 × ( 1+d/1000 ) μm( "d" is the diagonal mm ) (The measuring temperature is normally 20±2°C )

 

Physical Properties: S.G: 2970-3070kgs/m3 Compressive strength: 245-254N/mm2Elastic modulus: 1.27-1.47N/mm2Lindar expansion coefficient: 4.61 × 10-6/°CWater absorptivity:<0.13%

Shore scleroscope hardness: more than Hs70

 

Specification: Any special specification can be made according your requirement.     

SpecificationLength × Width × Thickness (mm)Weight (kgs)Precision Grade (μm)
0000001
300 × 200 × 50171.53612
300 × 300 × 50191.53612
400 × 300 × 70251.53612
400 × 400 × 704823.56.513
630 × 400 × 1007623.5714
630 × 630 × 10015524816
800 × 500 × 13015624816
1000 × 630 × 1302842.54.5918
1000 × 750 × 1503382.55918
1000 × 1000 × 1504502.551020
1600 × 1000 × 200963361224
2000 × 1000 × 20012003.56.51326
1600 × 1600 × 30023123.56.51326
2000 × 1600 × 30028903.571428
2500 × 1600 × 3003612481632
3000 × 2000 × 50090304.591836
4000 × 2000 × 500120405.5112244
6000 × 2000 × 700252847.5153060

As a manufacturer,we would like to give youa best price&high quality.

Your inquiry will be highly appreciated.

 

 



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