granite surface plate for sale

Granite Surface Plates for Sale A Comprehensive Guide

In the world of precision engineering and metrology, granite surface plates play a crucial role in ensuring accuracy and reliability. These flat slabs of granite are indispensable tools in various industries, including manufacturing, automotive, aerospace, and more. If you’re in the market for a granite surface plate, this guide will help you understand their benefits, features, and considerations when making a purchase.

What is a Granite Surface Plate?

A granite surface plate is a flat, hard surface used as a reference plane for precision measurement, assembly, and inspection. These plates are typically made from natural granite, which is favored for its durability, stability, and resistance to wear and deformation. Granite, being a non-metallic material, does not rust or corrode, making it ideal for use in various environments, including machine shops and laboratories.

Key Benefits of Granite Surface Plates

1. Precision and Accuracy Granite surface plates provide a flat reference point that is critical for performing measurements. The flatness of the surface allows for precision when using measuring tools such as calipers, micrometers, and height gauges.

2. Durability Granite is incredibly durable and can withstand heavy loads without deforming. This makes granite surface plates suitable for heavy machining applications.

3. Stability Granite is less prone to thermal expansion compared to metal surfaces, meaning that the reference plane remains stable across varying temperatures, ensuring consistent measurements.

4. Non-Absorbent Unlike some other materials, granite does not absorb liquids, making cleanup easier and preventing damage from spills.

5. Versatility Granite surface plates can be used for a variety of tasks, including layout work, inspection, maintenance, and calibration. They can be found in different sizes and configurations to suit specific needs.

Choosing the Right Granite Surface Plate

When looking to purchase a granite surface plate, consider the following factors

1. Size Granite surface plates come in various sizes, from small 12” x 12” plates to large industrial sizes measuring 48” x 96” or more. Choose a size based on your specific needs and the space available in your workspace.

2. Grade Surface plates are available in different grades, typically classified as A, B, or C. Grade A is the highest precision, suitable for laboratory and inspection use, while Grade C is more suited for general-purpose applications.

3. Surface Condition The condition of the plate’s surface is critical for accuracy. Ensure that the plate is free from chips, cracks, and scratches, as these imperfections can affect measurement quality.

4. Price Prices for granite surface plates can vary significantly based on size, grade, and manufacturer. It’s essential to compare prices and consider the long-term value of investing in a high-quality surface plate.

5. Accessories Consider whether you need additional accessories such as mounting kits, leveling pads, or protective covers. These can enhance the usability and lifespan of your surface plate.

Where to Buy Granite Surface Plates

Granite surface plates can be found at various suppliers, including industrial equipment retailers, online marketplaces, and specialty metrology shops. Brands such as Starrett, Mitutoyo, and Moore produce high-quality granite surface plates catering to different industries. When purchasing, make sure to check for warranties and after-sales support, as these aspects are essential for long-term investment.

Conclusion

Granite surface plates are essential tools for anyone involved in precision measurement and inspection. Their durability, stability, and accuracy make them a worthwhile investment for professionals in various fields. By considering the size, grade, and additional features, you can make an informed decision when purchasing a granite surface plate. Remember, the right surface plate not only enhances your measurement capabilities but also contributes to the overall quality of your work. Whether you’re a seasoned professional or just starting, investing in a high-quality granite surface plate will undoubtedly pay dividends in precision and reliability.