Precision Granite Square | Custom Granite Mounting Plate

Can this granite square be manufactured to a custom size or hole pattern? Yes. The dimensions, bore diameter, hole spacing, and thickness shown here are representative of a standard configuration. Most orders are produced to a customer-supplied drawing or reference sample, and small production runs are supported alongside larger volume orders.

What flatness tolerance can be achieved? Standard production typically holds DIN 876 Grade 0 or Grade 1 flatness across the working surface. Grade 00 is available for applications requiring the tightest achievable tolerance, and each order can include a calibration report showing actual measured values.

Is this material suitable for use near optical or laser measurement equipment? Yes. Natural granite is non-magnetic and electrically non-conductive, which is precisely why it's favored over metal in optical and laser-based inspection environments where electromagnetic interference or magnetic attraction would be problematic.

How does granite compare to cast iron or aluminum for this type of mounting plate? Granite offers a meaningfully lower thermal expansion rate than aluminum and better vibration damping than cast iron, along with corrosion resistance that neither metal option provides without additional coating or maintenance. The trade-off is weight and brittleness under impact, which is why granite components are typically specified for stationary or low-shock-load applications rather than components subject to repeated mechanical shock.

What lead time should I expect for a custom order? Lead time depends on size, tolerance grade, and whether the part requires extended stress-relief aging prior to final grinding. Reach out with your drawing and target quantity for an accurate production timeline.