Granite surface plates and tables are a must for accurate measurement and provide a flat and stable environment for inspection. They are free from temperature distortion and offer an exceptionally sturdy measuring environment due to their thickness and weight.
Measuring on uneven surfaces can give incorrect or inconsistent inspection results, using a granite surface plate can help eliminate this problem.
Manufactured to the same quality standards made synonymous by Crown since 1904, all Eley granite tables and surface plates conform to BS 817 (2008) and are available in three grades, Grade 0, Grade 1 and Grade 2.
Our granite surface tables are supplied with a high quality box section support stand for easy levelling with five adjustable points of support; 3 being primary points and the others outriggers for stability.
All granite plates and tables are supported by UKAS Certification.
Grade 0 - Granite Surface Plates & Tables
Eley Metrology's Granite Surface Plates and Tables are in accordance with BS 817 (2008) and are graded at three levels; Grade 0 plates and tables are typically used for laboratory environments where master artefacts are required.
Grade 1 - Granite Surface Plates & Tables
Eley Metrology's Grade 1 plates and tables are most often used for inspection purposes.
Grade 2 - Granite Surface Plates & Tables
Eley Metrology's Grade 2 surface plates and tables are commonly used in workshop environments where such a high flatness tolerance is not required.
All Eley Metrology's larger plates (900 x 600 x 100 and up) are available with a high quality steel support stand as standard with 3 adjustable points to ensure flatness on any surface, these support stands can also be applied to 600 and above size of plate when you require a specific working height.
If any non-standard sizes are required, Eley can produce one-off or 'special' sized granite surface plates and tables to your specifications.