Granite Surface Plates/Stands

Description

OVERALL FLATNESS

The overall flatness specifications of Granite products meet and surpass the requirement set forth by Federal Specification GGG-P-463c. This publication defines the three standard grades of tolerance for surface plates as follows:

AA – Laboratory Grade: For high precision operations in consistent temperature gauging rooms and metrology departments

A – Inspection Grade: For general use in quality control areas

B – Toolroom Grade: For shop work and production checking

Granite Surface Plates are available with 0-Ledge, 2- Ledge or 4-Ledge – Depending if you are going to want to clamp accessories to the side of your plate. (shown 4-Ledge Surface Plate)

SURFACE PLATE STANDS

• Available Stationary or Castered Stands are made for each plate to meet a 36” working height unless specified otherwise.
• Cabinet stands available

In addition to Granite Surface Plates and Stands Kerley Corporation offers numerous granite Accessories:

GRANITE Comparator Stands:   6″ x 6″ to 18″ x 24″ Stands available. Custom Sizes available.

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GRANITE TRI-SQUARES:

One large face and two edges flat and square to each other with lightening holes. Calibrates X,Y, Z axes on CNC machines, milling machines, coordinate measuring machines.

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MASTER GRANITE SQUARES:

One large face & four edges flat, square and parallel to each other with lightening holes. All granite products available in custom sizes and thicknesses, with threaded inserts, without lightening holes.

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GRANITE PARRALLELS:

• 2-Face finished on narrow edges   • 4-Face finished on narrow & wide edges

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GRANITE STRAIGHT EDGES (left): Measured on center line of gauging surface- narrow edge.

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GRANITE VEE BLOCKS:

“V & Base” 90° Vee centered with and parallel to base

“Universal” 90° Vee centered with and parallel to bottom and two sides, and square to the ends.

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GRANITE ANGLE PLATES:

2-FACE Bottom and adjacent square face finished flat and square to each other.

4-FACE Same as 2-face, with adjacent sides finished flat, square, and parallel.