Granite surface plates are precision tools used in various industries for accurate measurement, inspection, and quality control. Made from high-quality natural granite, these plates offer superior stability, durability, and resistance to corrosion. Their non-magnetic properties and minimal thermal expansion make them an ideal choice for precision engineering and metrology applications.
Available in a variety of sizes and grades, our granite surface plates are meticulously lapped to achieve optimal flatness. Each plate is rigorously tested to ensure compliance with international standards, making them a trusted solution for laboratories, manufacturing facilities, and workshops.
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Granite surface plates are essential in industries where precision measurement is critical. Unlike metal plates, granite does not rust or warp, ensuring long-term reliability and accuracy. The dense and fine-grained structure of granite reduces vibration, making it an excellent choice for metrology and calibration tasks.
Each granite surface plate is carefully processed using advanced technology to ensure maximum accuracy. Proper maintenance, including regular cleaning and calibration, enhances its lifespan and performance.
| Specification | Details |
|---|---|
| Material | High-quality natural granite |
| Flatness Tolerance | Grade 00 (0.0001" per 12"), Grade 0 (0.0002" per 12"), Grade 1 (0.0004" per 12") |
| Hardness | 6-7 on Mohs scale |
| Density | 2.7 g/cm³ |
| Thermal Expansion Coefficient | 5-7 x 10⁻⁶ per °C |
| Surface Finish | Lapped to high precision |
| Edge Treatment | Chamfered for safety |
| Customization | Available in various sizes and configurations |
Our granite surface plates are supplied with calibration certificates and can be reconditioned to maintain accuracy over time. We also offer stands and accessories to enhance usability.
For more information or to request a quote, contact us today!
Granite surface plates are available in a wide range of standard and custom sizes to meet diverse industrial needs. Below are some commonly available sizes:
| Size (L x W x H) (inches) | Weight (approx.) |
|---|---|
| 12" x 12" x 3" | 35 lbs (16 kg) |
| 18" x 12" x 3" | 52 lbs (24 kg) |
| 24" x 18" x 4" | 110 lbs (50 kg) |
| 36" x 24" x 5" | 265 lbs (120 kg) |
| 48" x 36" x 6" | 600 lbs (272 kg) |
| 60" x 48" x 8" | 1500 lbs (680 kg) |
| 72" x 48" x 10" | 2500 lbs (1134 kg) |
| 96" x 60" x 12" | 4500 lbs (2041 kg) |
Custom sizes and thicknesses are also available upon request