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  • Economic granite surface plate
  • Economic granite surface plate

    Economic granite surface plate

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    Salient Features :

    Made from close-grained Granite having uniform color and texture having hardness between 5.6 to 7 on Moh's scale, sound and free from flaws fissures and large inclusions of softer minerals.
    Made generally as per GB117-2015. Also available on request conforming to DIN-876-1972, BS-817-1988, JIS -B-7513 and US Federal specification GGG-P-463-C.
    metallic threaded inserts, metallic T-slots, Plates with two or four ledges also can be supplied against specific request at extra cost.
    Rexine cover provided for top working surface with each Plate.
    steel stand with leveling screws are available on request at extra cost.
    Granite Lapping Plates square and rectangular available on request.
    Also available in Grade 00 as per DIN 876.
    Sizes offered from 200x300mm to 8000x2000mm
    Other sizes are also offered on request.

    Our granite surface plate refers to the advanced standards of the leading countries, and its flatness tolerance is in accordance with the JB/T 7975-1999 Surface Plate:

     

    Grade 000 =1x(1+d/1000)/μm

    Grade 00 =2x(1+d/1000)/μm

    Grade 0 =4x(1+d/1000)/μm

    Grade 1 =8x(1+d/1000)/μm

    (d is the length of the diagonal)

     

    Specification 
    Length × Width × Thickness (mm)

    Weight (kgs)

    Precision Grade (μm)

    000

    00

    0

    1

    300 × 200 × 50

    17

    1.5

    3

    6

    12

    300 × 300 × 50

    19

    1.5

    3

    6

    12

    400 × 300 × 70

    25

    1.5

    3

    6

    12

    400 × 400 × 70

    48

    2

    3.5

    6.5

    13

    630 × 400 × 100

    76

    2

    3.5

    7

    14

    630 × 630 × 100

    155

    2

    4

    8

    16

    800 × 500 × 130

    156

    2

    4

    8

    16

    1000 × 630 × 130

    284

    2.5

    4.5

    9

    18

    1000 × 750 × 150

    338

    2.5

    5

    9

    18

    1000 × 1000 × 150

    450

    2.5

    5

    10

    20

    1600 × 1000 × 200

    963

    3

    6

    12

    24

    2000 × 1000 × 200

    1200

    3.5

    6.5

    13

    26

    1600 × 1600 × 300

    2312

    3.5

    6.5

    13

    26

    2000 × 1600 × 300

    2890

    3.5

    7

    14

    28

    2500 × 1600 × 300

    3612

    4

    8

    16

    32

    3000 × 2000 × 500

    9030

    4.5

    9

    18

    36

    4000 × 2000 × 500

    12040

    5.5

    11

    22

    44

    6000 × 2000 × 700

    25284

    7.5

    15

    30

    60

    Economic granite surface plate

    Economic granite surface plate



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