Granite Surface Plates - Granite Surface Plates Exporter, Manufacturer, Service Provider & Supplier, V.U. Nagar, India

Product Code : 16

Product Specification

Granite Surface Plates

Microflat Granite Surface Plates are used for precision gauging, Inspection, layout and marking purposes. They are preferred by Precision Tool Room, Engineering Industries and Research Laboratories because of their following outstanding advantages

No rust, no corrosion, relatively wrap-free, no compensating hump when nicked, longer wear, smoother action, greater precision, non-magnetic, less care after commissioning, lower co-efficient of thermal expansion and non glaring surfaces.

Salient Features

Made from close grained Granite having uniform colour and texture having hardness between 5.6 to 7 on Moh's scale, sound and free from flaws fissures and large inclusion of softer minerals
Made generally as per IS-7327-91. Also available on request conforming to DIN-876-1972, BS-817-1988, JIS-B-7513 ans US Federal specification GGG-P-463-C.
Metallic threaded inserts, Metalic 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.
Fabricated Frame/Cupboard type/C.I Individual type stand with leveling screws are available on request at extra cost.
Granite Lapping Plate square and rectangular available on request.

Standard Sizes And Tolerance Of Flatness

Size in mm			Flatness tolerance of various grades (in microns)
L x B	Grade-0	Grade-1	Grade-2	Grade-3
160 x 100	3	6	12	25
250 x 160	3.5	7.0	14.0	27.0
250 x 250	3.5	7	15	30
400 x 250	4	8	16	32
400 x 400	4.5	9.0	17.0	34.0
630 x 400	5	10	20	39
630 x 630	5	10	21	42
1000 x 630	6	12	24	49
1000 x 1000	7	14	28	56
1600 x 1000	8	16	33	66
2000 x 1000	9.5	19	38	75
2000 x 1600	11.5	23	46	92

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