Black Granite Surface Plate

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Black granite surface plate. Solid granite surface plate and angle plates are used for precision layout inspection and tooling setup. Hhip 4401 2418 black granite surface plate grade a ledge 0 24 length x 18 w 134 89 new hhip granite surface plate grade b ledge 0 4401 0011 12 x 9 x 3. Hhip black granite surface plates various sizes. Weight 4 7 out of 5 stars 120 114 95 114.
Only 18 left in stock order soon. The overall flatness specifications of standridge granite products meet and surpass the requirements set forth by the federal specification ggg p 463c and asme b89 3 7 2013. Purchasing a used surface plate or used granite inspection table for sale on ebay can be an affordable way to equip your cnc shop with the necessary. Hanes geo components 87459 erosion block 1 each.
Use grade aa laboratory plates for precision operations in constant temperature gaging rooms and metrology departments. Some sizes are prime eligible. What features should you consider when purchasing a used surface plate. Precise black granite surface plates.
This publication defines the three standard grades of tolerance for surface plates as follows. Black granite this type of granite is the preferred standard for granite surface plates due to its greater strength. Surface plates come in grades of a aa b and ht200 for different applications. The hardness and stability allow accuracies within millionths of an inch.
Hhip 4401 1812 black granite surface plate grade a ledge 0 18 length x 12 width x 3 height 000050 accuracy 80 lb. 12 x 9 x 3 48 x 72 x 6 by hhip. The quartz content of these granite surface plates increases the wear resistance of the plate as quartz is a harder stone. Grade b 9 x 12 black granite surface plate with anab accredited iso17025 certificate.
Along with the high accuracies granite is rust proof non magnetic abrasive resistant non wedging wrap resistant and easily cleaned. The granite used for surface plates has an excellent distribution of hard quartz which provides a.