Finding the right granite surface plate is crucial for precision measurement and machining. This guide focuses on the specifications of a 24x48x6 granite surface plate, often identified with a part number similar to AA0-24x45x6 (note the slight variation in the Y dimension—this is common in part numbering and requires careful verification with the supplier). We’ll delve into its features, applications, and what to consider when purchasing.
What is a Granite Surface Plate?
Granite surface plates are precision-engineered measuring tools constructed from high-quality granite. Their exceptional flatness, stability, and resistance to wear make them ideal for various applications requiring accurate measurements. The material's inherent properties ensure consistent performance over time, making them a worthwhile investment for professionals. The dimensions (in this case, approximately 24" x 48" x 6") refer to the length, width, and height of the plate respectively.
Understanding the Part Number: AA0-24x45x6 (and similar variations)
Part numbers like AA0-24x45x6 are manufacturer-specific. The "AA0" likely represents a manufacturer's code or series, while "24x45x6" indicates approximate dimensions in inches (length x width x height). It's crucial to confirm the exact dimensions and specifications with the supplier using the provided part number, as slight variations can occur. Always cross-reference with the manufacturer's documentation or contact their sales team.
Key Features of a 24x48x6 Granite Surface Plate
- Large Working Area: The 24x48 inch surface provides ample space for various inspection and measurement tasks.
- High Accuracy: Granite’s inherent stability ensures minimal deviation from flatness, crucial for precision work. The grade of granite will determine the level of accuracy; higher grades offer superior flatness.
- Durability: Granite is incredibly durable and resistant to wear, scratches, and corrosion. This translates to a long lifespan and consistent performance.
- Temperature Stability: Granite exhibits low thermal expansion, meaning its flatness remains consistent even with temperature fluctuations.
- Non-magnetic: This property is essential for applications involving magnetic instruments or materials.
Applications of a 24x48x6 Granite Surface Plate
This size surface plate is suitable for a range of applications, including:
- Precision Machining: Checking the flatness and accuracy of machined parts.
- Inspection and Quality Control: Verifying dimensions and surface finishes of manufactured components.
- Metrology: Used as a reference surface in various measuring and testing procedures.
- Tool and Die Making: Ensuring the accuracy of tooling and dies.
- Calibration: Serving as a reference standard for calibrating other measuring instruments.
What Grade of Granite is Suitable?
The grade of granite significantly impacts accuracy and cost. Higher grades (e.g., AA) offer superior flatness and are typically used for demanding applications requiring the highest precision. Lower grades are suitable for less critical tasks. The specification sheet accompanying the part number (AA0-24x45x6 or similar) should detail the grade of granite used.
How to Care for Your Granite Surface Plate
Proper care ensures the longevity and accuracy of your surface plate:
- Clean Regularly: Use a soft cloth and isopropyl alcohol to remove debris.
- Avoid Abrasive Cleaners: Harsh chemicals can damage the surface.
- Handle with Care: Avoid dropping or impacting the plate.
- Store Properly: Store in a clean, dry environment, ideally with protective covering.
Frequently Asked Questions (FAQs)
This section addresses common questions regarding granite surface plates. While specific questions are dependent on search engine results, here are some examples covering common concerns:
How often should I calibrate my granite surface plate? Regular calibration is essential to maintain accuracy. The frequency depends on usage, but annual calibration is often recommended for precision applications.
What is the difference between granite and steel surface plates? Granite offers better stability and resistance to temperature changes, making it superior for high-precision work. Steel plates are generally less expensive but may be more prone to warping and corrosion.
What are the different grades of granite surface plates? Granite surface plates are graded based on their flatness. Higher grades (e.g., AA, A) offer tighter tolerances and greater flatness than lower grades (e.g., B, C).
This comprehensive guide provides a starting point for understanding granite surface plates, specifically focusing on the 24x48x6 size (and similar part numbers like AA0-24x45x6). Remember to always consult the manufacturer's documentation and specifications to confirm the exact details of your specific part number.
