Lapping Granite Surface Plate

Brand new cast iron machinist lapping plate.

Lapping granite surface plate.

Their high degree of flatness overall quality and workmanship also make them ideal bases for mounting sophisticated mechanical electronic and optical gauging systems. We are the leading manufacturer and supplier of a superior quality array of granite surface plate cast iron surface plate lapping plate cast iron angle plate cast iron angle plate cast iron box angle plate bench centre pcd gear testing attachment etc. Finding an affordable surface plate or granite inspection table for sale on ebay can be an easy way to upgrade your shop. Use these precision ground plates with lapping compounds to create extremely flat surfaces on your workpiece.

These are available in square and rectangular sizes and are made up of black granite. The plates are inspected and calibrated with an autocollimator and. Aa this is a laboratory grade granite. Very nice 10 x 8 x 2 1 4 machinist lapping plate surface plate heavy duty 48 lb.

Grades of granite to consider when looking at a granite surface plate for sale. Grooved surface captures the abrasive and holds it in place during lapping. A surface plate is a solid flat plate used as the main horizontal reference plane for precision inspection marking out layout and tooling setup. Smooth surface is for very fine lapping with small abrasive grains.

Hhip 4401 2418 black granite surface plate grade a ledge 0 24 length x 18 w. Hhip 4401 0013 black granite surface plate grade b ledge 0 24 length x 18 w. In this video we see the process for inspection and reconditioning granite surface plates. The surface plate is often used as the baseline for all measurements to a workpiece therefore one primary surface is finished extremely flat with tolerances below 11 5 μm or 0 0115 mm per 2960 mm for a grade 0 plate.

The granite used in a granite surface plate is graded by quality with these four levels of quality. Standridge granite surface plates provide an accurate reference plane for work inspection and for work layout.