Exceptional Vibration Damping Capabilities
In high-speed machining and inspection, vibration is a major cause of error. Granite machine bases possess natural damping properties that are far superior to steel or cast iron. This ability to absorb vibration ensures that external noise or internal machine movements do not affect the precision of the measurement or manufacturing process.
Rigid Foundation for Ultra-Precision Motion
Our bases are crafted from premium black granite with a density of approximately 3070 kg/m³. This high density provides a virtually unyielding foundation for mounting linear guides, air bearings, and sensors. The result is a machine structure that maintains geometric accuracy even under dynamic loads.
Complex Customization for Modern Machinery
We understand that every machine design is unique. UNPARALLELED® specializes in machining complex geometries, including T-slots, threaded holes, and vacuum ports directly into the granite. This "one-stop" customization allows for seamless integration into Coordinate Measuring Machines (CMMs) and optical inspection systems.
Comparison: Granite Base vs. Cast Iron Base
| Feature | Granite Machine Base | Cast Iron Base |
|---|---|---|
| Vibration Damping | 6-10x higher than iron | Low damping |
| Weight-to-Stiffness | High rigidity, lighter | Heavy, prone to creep |
| Machinability | Complex shapes easily | Limited by casting molds |
| Magnetic Properties | Non-magnetic | Magnetic |
FAQ: Granite Machine Bases
Why use granite instead of mineral casting (polymer concrete)?
While mineral casting is good, natural granite offers higher stiffness, better thermal conductivity, and superior long-term stability for the highest precision applications.
What is the maximum size of a granite base you can manufacture?
We can machine monolithic granite components up to 100 tons and 20 meters in length, ensuring no seams or joints compromise accuracy.
Are the threaded inserts in the granite secure?
Yes, we use specialized anchoring techniques and high-strength adhesives to ensure threaded inserts and T-nuts can withstand significant torque and pull-out forces.
Can you machine the granite to tight tolerances?
Absolutely. Our precision grinding and lapping processes achieve flatness and perpendicularity tolerances within microns.
Is the granite treated for oil and coolant resistance?
Natural black granite is non-porous and highly resistant to oils and coolants, making it ideal for harsh industrial environments.
Do you ship internationally?
Yes, we have extensive experience packaging and shipping heavy precision granite bases globally, ensuring they arrive without damage.