Large Format Precision Granite Surface Plate for Industrial Metrology Inspection

Large Format Precision Granite Surface Plate for Industrial Metrology Inspection

Our precision granite surface plates act as the primary reference datum for inspection and measurement tasks across metrology, aerospace, laser and semiconductor industries.

We keep abundant reserves of premium natural black granite blocks including Jinan black granite, India black granite and South Africa black granite. Stable raw material stock guarantees consistent supply and shorter lead time for large-size granite surface plate orders. These selected granite materials feature tight, uniform grain, ultra-low thermal expansion, high hardness, excellent vibration damping, corrosion resistance and non-magnetic properties. Such natural characteristics make granite far superior to cast iron for long-term stable measurement benchmarks.

Our factory uses large gantry cranes for rough cutting of oversized granite blanks. Germany imported CNC equipment supports rough machining to ensure consistent dimensions for granite surface plates. Finished plates are inspected inside our constant temperature & humidity workshop to avoid accuracy drift caused by ambient temperature and humidity changes.

We offer custom sizes and precision grades for granite surface plates. Send your drawings, dimension requirements and flatness tolerances to us for a custom quotation.

RAQ for Precision Granite Surface Plate

Q1: What granite materials can be used for your granite surface plates?

A: Jinan black, India black and South Africa black granite are available with sufficient stock for your granite surface plate projects.

Q2: What is the main advantage of granite surface plate compared with cast iron plate?

A: Natural granite features non-magnetic property, no rust, low thermal expansion and stable flatness over long service life.

Q3: Can you make large-format granite surface plate?

A: Yes. Large gantry crane in our workshop enables rough cutting and processing of oversized granite slabs.