Granite surface plates are widely valued for their stable precision and ease of maintenance. This is due to their dense and fine-grained structure, smooth and wear-resistant surface, and low roughness value. Thanks to millions of years of natural aging, internal stress is eliminated, giving the stone exceptional dimensional stability with no deformation. Granite is also resistant to acid, alkali, and corrosion, non-magnetic, and unaffected by moisture or rust. Its low coefficient of thermal expansion ensures minimal impact from temperature fluctuations.
The machine tool worktable is one of the most essential components of a machine tool. As modern manufacturing develops toward large-scale and ultra-large-scale equipment, the worktable's size has become a limiting factor. One effective solution is the assembled worktable, which allows multiple plates to be connected to form a larger surface. However, traditional metal worktables may face precision stability issues over time, whereas granite platforms maintain accuracy longer.
Structure & Function of Assembled Machine Tool Worktables
An assembled machine tool worktable is created by connecting multiple granite or cast iron plates using precision interfaces and bolts. This setup is widely used for inspection, measurement, marking, and assembly tasks, especially for large castings or oversized workpieces.
When larger work surfaces are needed, several individual plates can be combined into one large platform, enabling accurate inspection, layout, welding, and assembly of large mechanical parts. The worktable serves as a precision reference surface for checking flatness, parallelism, perpendicularity, angular accuracy, and straightness.
Advantages in Industrial Applications
Customizable Size – Multiple plates can be assembled to meet large-scale workpiece requirements.
High Precision Stability – Granite maintains accuracy better than metal under varying loads and temperatures.
Versatile Use – Suitable for inspection, welding, assembly, and measurement in heavy machinery manufacturing.
Durable & Low Maintenance – Resistant to rust, corrosion, and wear for long-term accuracy.
In modern mechanical manufacturing, assembled granite worktables have become an indispensable tool for ensuring accuracy in the production and inspection of large mechanical components.