Blog
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Granite Air Bearings: How They Work and When to Use Them
If you design ultra-precision motion stages, optical inspection machines, or metrology equipment, you have probably faced the same decision: how do you move a payload across a work zone with sub-micron straightness, no stick-slip, and no wear? For a growing number of machine builders, the answer...Read more -
CNC Granite Components with Stress Relief Aging for Long-Lasting Stable Precision
In the ultra-precision equipment industry, most people focus on the final flatness of finished granite components, yet they often overlook a hidden factor: residual stress inside the material. Even if a granite workpiece meets precision standards upon factory inspection, insufficient stress relea...Read more -
Can CNC Granite Components Be Processed with Grooving and Drilling?
When many procurement engineers first encounter precision granite components, they wonder: granite is hard and brittle, so can it be processed with special shapes such as grooving and drilling. There is a common perception that stone can only be made into flat reference plates and hardly machined...Read more -
How Granite Components Perform on High-Speed CNC Machines
In high-speed CNC machining, dynamic stability, sustained precision and adaptability to working conditions are the core factors determining the quality of ultra-precision finished parts. Traditional cast iron and ordinary metal structural components tend to suffer vibration offset, thermal deform...Read more -
Why Semiconductor and CMM Equipment Use Granite Bases
Ask a structural engineer why the CMM bridge in their lab and the wafer inspection stage across town are both built on granite, and you will usually get a short answer: “stiff and stable.” The real answer is a set of five material properties that no single engineering alternative deli...Read more -
Granite Surface Plate Grades Explained: How to Choose Between Grade 00, 0, 1 and 2
Walk into any metrology lab or quality department and you will find a granite surface plate – and underneath its serial number, a grade letter or pair of zeros that most buyers order by habit rather than by decision. Choosing the wrong grade usually means one of two failures: paying for lab...Read more -
Granite vs. Marble: How to Tell Real Precision Granite from Cheap Substitutes
If you are buying a precision granite component for the first time, here is an uncomfortable fact: the global stone market has a gray zone, and not every dark, polished, heavy block sold as “granite” is a true precision granite. Marble – cheaper, softer, more porous – is t...Read more -
Large Granite Base with Aging Treatment to Avoid Potential Deformation in Later Stage
Most precision failures of large granite bases do not stem from insufficient machining accuracy, but spontaneous deformation caused by the release of hidden residual stress afterwards. Many small and medium processing factories only focus on passing pre-delivery inspections while ignoring the inh...Read more -
Large Granite Base: Moisture-proof and Corrosion-resistant to Reduce Equipment Maintenance Pressure
Precision gantry platforms and optical inspection equipment are often placed in workshops or laboratories, where moisture, cutting fluid mist and volatile acid-base substances are common. Metal bases are vulnerable to environmental erosion. Cast iron bases gradually rust, and anti-corrosion coati...Read more -
Trusted by Fortune 500s & Global Metrology Institutes: ZHHIMG®’s International Footprint
When a semiconductor equipment maker in Korea, a CMM manufacturer in Germany and a research group at a national metrology institute all specify the same brand of precision granite, it is not an accident of marketing. It is the result of two decades spent answering one question: who can deliver ge...Read more -
Large Granite Base Resists Deformation and Maintains Precision under Long-term Heavy Load
After commissioning, large-travel precision inspection equipment and gantry motion platforms often need to carry modules, optical assemblies and fixtures continuously year-round. The deformation stability of the base directly determines the precision service life of the whole machine. Many metal ...Read more -
What Risks Should Be Noted During Transportation and Installation of Large Granite Bases?
Large granite bases feature heavy dead weight and brittle material properties. Their finished datum surfaces are ultra-precision ground. Many easily overlooked risks exist during transportation and on-site installation. Improper handling may lead to scratches on the reference surface, or invisibl...Read more