Metrology
Measuring instruments, high-precision bases and custom inspection benches
Whether for dimensional or geometric measurements, measurement accuracy and precision are essential.
The Microplan Group is a partner of excellence for the supply of high-precision metrological solutions, suitable for meeting every measurement requirement.
High-precision bases and components for Metrology
The Microplan Group, at its production sites in Italy (Microplan Italia Srl) and France (Microplan France Sas), provides:
- Granite bases and components for measuring machines (CMMs), machine tools and electronic testing machines, with the possibility of producing large-size bases up to 50 tons.
- Ceramic crossbeams and Z-axes (alumina ceramic and silicon carbide Si-SiC), with the possibility of producing parts with lengths up to 3800 mm.
- Calibration masters in granite and ceramic (ballbar).
- Precision instruments in granite and ceramic (surface plates, squares, straightedges, prisms, cubes, cylinders, etc.).
- Custom measuring benches for atypical or critical measurements: Microplan studies and manufactures special measuring solutions, starting from the Customer’s specific requirements.
- Electronic instruments for geometric and dimensional inspections (straightness, flatness, perpendicularity, squareness, cylindricity, roundness, large-diameter measurements, etc.).

High-precision granite measuring and inspection instruments
Measuring instruments such as surface plates, straightedges, squares, cubes, prisms and parallelepipeds, etc. are manufactured to guarantee maximum dimensional stability, high wear resistance and accuracy in testing, quality control and metrological inspection operations.
Ideal for mechanical workshops, machine tool installers and manufacturers, metrology rooms and quality departments, granite instruments represent the optimal solution for reliable measurements, accurate inspections and dimensional references of the highest level.

Microplan Group: a benchmark for precision measurement
Microplan Group, a specialist in the design and machining of granite and ceramic bases and components for metrology, has been working for 50 years with companies in every industrial sector – from automotive to aerospace, from electronics to semiconductors and numerous other sectors – to provide high-performance tailor-made solutions.
Whether surface plates, bases for CMM coordinate measuring machines or traditional measuring and inspection instruments, every Microplan product is manufactured with micron-level geometric tolerances and inspected using measuring instruments that are constantly verified and traceable to certified primary reference instruments.
The result?
An accurate, stable measuring base, ready to integrate with the most advanced measurement technologies.

The advantages of granite bases in metrology

The use of precision granite bases and components offers numerous advantages:
- Geometric guarantee: granite products provide a stable and accurate reference for high-precision measurements and applications.
- Dimensional stability: thanks to its low coefficient of linear thermal expansion, granite offers excellent dimensional stability, essential for all measuring instruments to guarantee precision and accuracy, indispensable requirements in high-technology applications such as optical machines, semiconductor machines and measuring machines in general.
- Machinability: new technologies and latest-generation machinery make it possible to carry out all the typical machining operations of metallic materials: drilling according to drawing, insertion of metal inserts of every type, making the base suitable for the assembly of any mechanical, electrical or electronic component.
Applications in the metrology field
Microplan granite and ceramic solutions are widely used for:












































