What Is A Granite Surface Plate
Standridge granite surface plates provide an accurate reference plane for work inspection and for work layout.
What is a granite surface plate. Solid granite surface plate and angle plates are used for precision layout inspection and tooling setup. The properties of granite such as weight resistance and durability create a super smooth surface that is easy to maintain. The granite used for surface plates has an excellent distribution of hard quartz which provides a smooth long wearing working surface. 48x60x6 b0 precision granite b grade tool room surface plate 48 x 60 x 6.
Granite surface plate maintenance may be easy but it is still important to perform regular checks and cleaning. Grades of granite to consider when looking at a granite surface plate for sale. Granite surface plate calibration should be performed routinely to maintain proper flatness and ensure measurement accuracy over time. Surface plates come in grades of a aa b and ht200 for different applications.
Metallic objects like manufactured components jobs can easily slide on their surface. When needed lapping or resurfacing is provided to bring measurements within grade guidelines. The foundation of precision measurement is the surface plate. 36x72x6 b0 precision granite b grade tool room surface plate 36 x 72 x 6 the 36x72x6 b0 precision granite b grade tool room 36 x 72 x 6 surface plate is on sale at gagi.
Granite surface plates are considered the more superior material compared to cast iron surfaces. Granite surface plate. The intervals between calibrations depends on the environment where the surface plate is located. Granite surface plates meet or exceed federal specifications ggg p463.
Read full article here. They provide a high modulus of rigidity and are moisture free. Construction of surface plate required material properties to make materials used to make surface plates cast iron surface plate granite surface plates glass surface plates. The granite used in a granite surface plate is graded by quality with these four levels of quality.
These stands have three plate support points to match the support points on most granite plates as defined by fed. A this is an inspection grade granite surface. For technical drawings and 3 d models click on a part number. Final inspection and calibration of every surface plate is accomplished by use of the auto collimeter.
Aa this is a laboratory grade granite surface. Use grade aa laboratory plates for precision operations in constant temperature gaging rooms and metrology departments. The usual range available from 400 250 50 mm to 2000 1000 250 mm.