Polymer concrete is dense, rigid, dimensionally and thermally stable, resistant to water and chemicals and will not twist or bend in reaction to stress.To get more news about granite machine base, you can visit cntrueplate official website.

In addition, the material displays superb vibration dampening qualities, and no machinist or engineer would deny that the biggest challenge in any precision machining process is eliminating vibration.That is the reason that polymer concrete, which was once, long ago, derided as a cheap substitute for cast iron and welded machine tool bases, has become the preferred base to ensure rigidity in a machine tool.

Many machine tool builders are increasing their use of some form of polymer concrete in their machine bases.James Kucharski, a product manager at Maier USA LLC, said polymer concrete is the ideal choice for machine bases, especially Swiss-style turning machines, because of its efficiency.

Kucharski noted that the number of rapid movements in a machine are constantly increasing because of higher machine speeds and acceleration rates, and because positioning cycles and tool changes have become faster.The machine base has been relied on to absorb that increased number of rapid movements, he said.

Maier has carefully measured absorption, and has found that polymer concrete absorbs vibrations eight to 10 times faster than gray cast iron. And, obviously, the more the vibrations are absorbed, the easier it is to take faster, deeper cuts while maintaining maximum accuracy and longer tool life.

Machine bases often are measured according to rigidity statistics, and polymer concrete can be classified as an isotropic, homogeneous material, Kucharski said. Because the material is so dense and its sections are so massive, machine bases weigh considerably more than typical cast frames.