Granite Metrology Surfaces.

Close-grain black granite, precision lapped. Four product families, each specification refined to the application it serves.

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Material

Close-grain black granite

Finish

Precision lapped

Standard

DIN 876-1

T-slots

DIN 650

Largest single piece

To 10,000 mm in length

Close-grain black granite is precision lapped, non-magnetic and chemically inert, with interface features produced through elements bonded into the granite. Four product families run from laboratory surface plates to machine foundations, supported by granite tooling, each item manufactured to its governing standard or to drawing.

Surface Plates

The plate alone, for your own bench, stand or structure.

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Surface Tables

Complete on a fabricated frame or cabinet.

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Bed Plates

Floor-mounted foundations for inspection and testing.

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Metrology Tooling

Squares, parallels, vee blocks, straightedges and bespoke fixturing.

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Material.

Material

Close-grain black granite

Finish

Precision lapped

Surface standard

DIN 876-1, grade to specification

Largest single piece

To 10,000 mm in length; width a function of length

Properties

Non-magnetic, chemically inert

Other standards

Available on request

Choosing between cast iron and granite

Interface features in granite.

Granite carries every interface feature available in cast iron. Typically specified: threaded, reamed and hard bushed holes, keyways, T-slots and slots, through to bespoke customer-designed features. They are produced using cast iron or stainless steel elements bonded into the granite, with the element material chosen to suit the application.