PYRAMID GRANITE & METALS, INC.

660 Superior St. - Escondido, CA 92029
Ph (760) 745-6309 - Fax (760) 743-2803
1-800 874-5441 Nationwide and Canada - sales@PyramidGranite.com

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Granite Accessories Worldwide Shipping
JIT-Kanban Delivery Surface Plates FAQ's
General Info & Granite Selection Drilling, Slotting & Inserting Family & History
Granite Machine Bases Logo Engraving & Private Labeling Facilities
Metal Weldments & Support Stands Calibration & Certification Quality Policy
Vibration Dampening Systems Design Assistance President's Comments
 

Frequently Asked Questions

1. Why should I choose Pyramid Granite & Metals, Inc. as my sole precision granite product supplier?

  • JIT/KANBAN delivery
  • Great supply chain flexibility
  • Exemplary technical knowledge
  • Legendary personal customer service
  • Outstanding, large production facilities
  • Full service American manufacturer (OEM)
  • Committed, talented, experienced craftsmen
  • Flawless, reliable, and consistent performance
  • World class design, materials and management
  • Huge inventory of raw stock & finished inventory
  • Sixty years as leaders in precision granite technology
  • Shortest time from purchase to delivery in the business
  • The highest possible quality at the most affordable prices

2. How much does granite weigh?

Answer: The formula for computing the weight of black granite is:
 [(Length-inches x Width-inches x Height-inches) ?1728] x 185 = Weight of Granite.

Step one: Using inches, multiply the Length times the Width times the Height of the piece of granite.

Step two: Divide the total obtained in Step One by 1728; and

Step three: Multiply the total obtained in Step Two by 185.

Result: The number you obtain is the weight in pounds.

3. What type of granite should I use in my design?

Answer: The type of granite you should use in your design will be based on considerations such as the uniformity of surface, accuracy requirements, deflection under load, type of use and cost restrictions. Please see our General Info & Granite Selection page for more information.

4. How do I minimize the cost to add slots, holes and inserts to my precision granite product design?

Answer: Over the 60 years we have been manufacturing granite products, we have discovered that many times a product's cost can be reduced by eliminating over engineering. Our  technical staff will work with you to minimize the costs associated with manufacturing precision granite machine bases. Please see our Design Assistance page.

5. Can you put my company name and logo on your product?

Answer: Yes we can! In addition to metal plate and metal foil identification tags, we also offer Logo Engraving & Private Labeling.

6. Do you provide refinishing, resurfacing & calibrating services?

Answer: Yes, we do offer those services. The cost will depend on the existing condition of the precision granite product as compared to its desired condition. The work is usually done at our manufacturing plant, but special arrangements can be made to travel to your site.

7. How should I clean my precision granite products?

Answer: We recommend the use of a mild, diluted household detergent, along with a soft, non-abrasive cleaning cloth. We advise against using commercial granite surface plate cleaners because, while many of them give your granite pieces a nice shiny glow, they tend to cause a buildup on the precision surface which adversely affects the accuracy of the flatness.

8. How much force can I use on my inserts?

Answer: It is very important to resist over tightening of the threaded inserts situated in your precision granite product. One should not exceed the following maximum torque limits for standard inserts, as you may damage your granite product to the point where it can not be repaired, and must be replaced in its entirety. If your requirements exceed these specifications, contact us to assist you in designing the appropriate size inserts for your torque requirements:                                                

THREAD TORQUE THREAD TORQUE
.250 7 FT. LB. .500 25 FT. LB.
.3125 15 FT. LB. .625 30 FT. LB.
.375 20 FT. LB. .750 35 FT. LB.

9. Why does granite have color streaks, spots and seams?

Answer: Seams and color streaks occur occasionally & naturally in granite stone. It is not uncommon for granite plates of larger sizes to include cosmetic non-conformities, which we endeavor to keep to a minimum. We can assure you that such visible disconformities are carefully examined before, during and after the manufacturing process for actual or potential problems due to non-conforming material. Our goal during this inspection process is to insure that we are following our own internal quality standards, as well as federal specifications (GGG-P-463c) relating to seams and color streaks (Sections 3.7, 6.3 (v), 6.3(w)).

Tests include visual inspection (wet and dry), breakage of sliced specimens to determine areas of disconforming materials (Section 4.5.8) and repeat reading checks for material hardness differential.

We can assure you that all product leaving our facility has been fully and thoroughly inspected and is of excellent quality.

10. Is there an additional cost for long form certifications?

Answer: There is no additional charge if it is requested at the time of placing your order.

11.How does an Autocollimator work?

How Autocollimators Work
Light from an object point (O) is collimated or made parallel by an objective lens. If the collimated beam falls perpendicular to a plane reflecting surface, the light reflects back along its original path and focuses at a point coincident with the objective point. If the reflector is tilted through an angle 0, then the reflected beam deflects through an angle 20 and the image 1 displacement is given by d=20f where f is the focal length of the lens, and 0 is the radians. Given that f is a known constant for the autocollimator, measurement of the displacement d enables ascertaining the tilt 0. Each measurement results in a datapoint along a Union Jack pattern. An inspector measures each straight line of the Union Jack independently (AB, BC, CD, DA, etc.). In data reduction, diagonals are joined at their midpoint (called closure) and the endpoints are normalized. The inspector adjusts the slopes of the remaining lines to the four endpoints, and calculates peak-to-valley flatness.
("How Flat is That?" Quality, September 1994)

12. Do my drawings need to be in a specific format when I e-mail them to you?

Answer: We accept all standard file formats, including:

DXF PDF EDRAW
DWF GIF JPEG

Home

Contact Us

Granite Accessories Worldwide Shipping
JIT-Kanban Delivery Surface Plates FAQ's
General Info & Granite Selection Drilling, Slotting & Inserting Family & History
Granite Machine Bases Logo Engraving & Private Labeling Facilities
Metal Weldments & Support Stands Calibration & Certification Quality Policy
Vibration Dampening Systems Design Assistance President's Comments


Your reliable & affordable precision granite manufacturer
of unsurpassed quality products is ...
 

PYRAMID GRANITE & METALS, INC.

660 Superior St. • Escondido, CA 92029 • Ph (760) 745-6309 • Fax (760) 743-2803
1-800 874-5441 Nationwide and Canada • sales@PyramidGranite.com

 © Pyramid Granite & Metals, Inc. 2004-2013