What Is A Granite Surface Plate Used For

Our granite surface plates are manufactured in three ledge types as well as standard sizes and grades.

What is a granite surface plate used for.

The foundation of precision measurement is the surface plate. 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. Granite 0 ledge 48 x 36 x 6 precision surface plate w adjustable steel stand. Surface plates come in grades of a aa b and ht200 for different applications.

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. B this is a toolroom grade granite surface. Plates with two ledges are used to hold fixtures and instruments with clamps.

The bottom side of the plate has several stiffening ribs and there are two handles on either side which are used to lift and shift the surface plate. Plates that have ledges are used for clamping purposes only. Granite surface plate maintenance may be easy but it is still important to perform regular checks and cleaning. All of the granite we use has been carefully measured to establish the modulus of elasticity allowing us to comply and exceed federal specifications and user requirements.

The surface plate is a massive solid structure highly rigid in design which is having a true flatness of the surface. Use grade aa laboratory plates for precision operations in constant temperature gaging rooms and metrology departments. The granite used for surface plates has an excellent distribution of hard quartz which provides a smooth long wearing working surface. Toolroom grade b plates are for checking work throughout a shop.

Granite surface plates meet or exceed federal specifications ggg p463. Granite surface plates are considered the more superior material compared to cast iron surfaces. A this is an inspection grade granite surface. Read full article here.

The granite used in a granite surface plate is graded by quality with these four levels of quality. Aa this is a laboratory grade granite surface. Final inspection and calibration of every surface plate is accomplished by use of the auto collimeter. Laboratory grade aa plates are for precision quality control work.

Used granite surface plates 142 listings. Inspection grade a plates are for general quality control work. A surface plate is a solid flat plate used as the main horizontal reference plane for precision inspection marking out layout and tooling setup. As the name suggests a surface plate refers to a plate having a perfectly flat surface which is manufactured out of cast iron normally having a rectangular shape.