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BLACK GRANITE SURFACE PLATES & TABLES

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Product Details

Each ‘GRE‘ Granite Surface Plate is the result of extremely careful and highly specialised finishing work based on many years of experience on the part of experts in the field of high precision surface plate manufacture.

 

GRE‘ Granite Surface Plates are manufactured from the hardest granite available in South India. The density of Black Granite with its high hardness ensures greater resistance to wear.

 

GRE‘ Granite plates are extremely heavy built. This provides special advantages, in terms of rigidity, since in accordance with deflection and torsion formuli, the rigidity of a body increases by the cube law related to its thickness.

 

GRE‘ Granite Plates have well radiused edges and corners for protection against shock while loading. The smooth matt polished exteriors impart a Pleas- ing appearance to the Plates. The measuring Surfac- es are finished to a high standard of flatness, close Micro-structure and Wear resistance.

‘T’ slotted Granite Surface Plates with mounted centres are also manufactured.

Heavy duty Floor Stands suitable for all ‘GRE’ Gran- ite Plates are supplied at extra cost.

 

EVERY ‘GRE’ PLATE IS CHECKED FOR FLATNESS WITH AN ELECTRONIC LEVEL & INSPECTION REPORT FURNISHED TO RELATIVE IS, DIN / BS FED- ERAL SPECIFICATIONS. NABL APPROVED LAB INSP REPORT CAN ALSO BE FURNISHED

 

PRICES AND ACCURACIES FOR BIGGER & OPTIMUM PRECISION GRANITE PLATES COULD BE FURNISHED ON REQUEST.

 GRE Plates are supplied either as a Block or with 2 lips

Specification

SPECIFICATION & ACCURACIES AS PER DIN 876

Product code

 

Size

 

of

 

Plate

Permissable deviations from absolute theoretical plane (in Microns)

 

L

B

Gr. 1

Gr. 0

Gr. 00

GS-01

400 x 400 mm

5.6

2.8

1.4

GS-02

450 x 450 mm

5.6

2.8

1.4

GS-03

600 x 450 mm

6.6

3.3

1.6

GS-04

630 x 630 mm

6.6

3.3

1.6

GS-05

630 x 1000 mm

8.0

4.0

2.0

GS-06

1000 x 1000 mm

8.0

4.0

2.0

GS-07

1600 x 1000 mm

10.0

5.0

2.5

GS-08

2000 x 1000 mm

12.0

6.0

3.0

SPECIFICATION AS PER IS 7327 : 2003

Product code

 

Size of Plate

Diagonal length (approx) mm

 

Border Zone

Tolerance on deviation from flatness overall

grades of plates

 

 

 

 

0

1

2

3

GS-01

400 x 400 mm

566

8

4.5

9

17

34

GS-02

630 x 400 mm

745

8

5

10

20

39

GS-03

630 x 630 mm

891

13

5

10

21

42

GS-04

1000 x 630 mm

1180

13

6

12

24

49

GS-05

1000 x 1000 mm

1414

20

7

14

28

56

GS-06

1600 x 1000 mm

1880

20

8

16

33

66

GS-07

2000 x 1000 mm

2236

20

9.5

19

38

75

GS-08

2500 x 1000 mm

2960

20

11.5

23

46

92

 

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