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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Vibration Dampening Systems Design Assistance President's Comments

Precision Granite Surface Plates

PROPERTIES

* Uniform hardness

* Accurate under load

* Vibration absorbent

* Easy-to-clean

* Rustproof, noncorrosive

* Nonmagnetic

* Thermal stability

* Plates may be easily resurfaced

* Warp-resistant

* Low porosity

* Nonabrasive

OVERALL FLATNESS

The overall flatness specifications of Pyramid Granite & Metals Inc. products meet and surpass the requirements set forth in Federal Specification GGG-P-463c. This publication defines the three standard grades of tolerance for surface plates as follows:

     AA ? Laboratory Grade: For high precision operations in constant temperature gaging rooms and metrology departments.

     A – Inspection Grade: For general use in quality control areas.

     B – Toolroom Grade: For shop work and production checking.

   
   
     

Standard Granite Surface Plates

AA GRADE (LABORATORY)

Size in
 Inches
 
Overall
Accuracy
 
Thickness
 in Inches
 
Wt., Lb.
 
 
 
 
 
 
 
 8 x 12
 
.000050"
 
2
 
20
12 x 12
 
.000050"
 
3
 
45
12 x 18
 
.000050"
 
4
 
90
18 x 18
 
.000050"
 
4
 
135
18 x 24
 
.000075"
 
4
 
180
 
 
 
 
 
 
 
24 x 24
 
.000075"
 
4
 
240
24 x 36
 
.000075"
 
6
 
540
24 x 48
 
.000150"
 
8
 
960
36 x 36
 
.000150"
 
6
 
810
36 x 48
 
.000200"
 
8
 
1440
 
 
 
 
 
 
 
36 x 60
 
.000250"
 
8
 
1800
36 x 72
 
.000300"
 
10
 
2700
48 x 48
 
.000200"
 
8
 
1920
48 x 60
 
.000300"
 
8
 
2400
48 x 72
 
.000350"
 
10
 
3600
48 x 96
 
.000500"
 
12
 
5760
 
A GRADE (INSPECTION)
Size in  Inches
 
Overall Accuracy
 
Thickness in Inches
 
Wt., Lb.
 
 
 
 
 
 
 
 8 x 12
 
.000100"
 
2
 
20
12 x 12
 
.000100"
 
2
 
30
12 x 18
 
.000100"
 
3
 
75
18 x 18
 
.000100"
 
3
 
100
18 x 24
 
.000150"
 
3
 
150
 
 
 
 
 
 
 
24 x 24
 
.000150"
 
4
 
240
24 x 36
 
.000200"
 
4
 
360
24 x 48
 
.000300"
 
6
 
720
36 x 36
 
.000300"
 
6
 
810
36 x 48
 
.000400"
 
6
 
1080
 
 
 
 
 
 
 
36 x 60
 
.000500"
 
6
 
1350
36 x 72
 
.000600"
 
8
 
2160
48 x 48
 
.000400"
 
6
 
1440
48 x 60
 
.000600"
 
6
 
1800
48 x 72
 
.000700"
 
8
 
2880
48 x 96
 
.001000"
 
10
 
4800
 
B GRADE (TOOLROOM)
Size in  Inches
 
Overall Accuracy
 
Thickness in Inches
 
Wt., Lb.
 
 
 
 
 
 
 
 8 x 12
 
.000200"
 
2
 
20
12 x 12
 
.000200"
 
2
 
30
12 x 18
 
.000200"
 
3
 
70
18 x 18
 
.000200"
 
3
 
100
18 x 24
 
.000300"
 
3
 
150
 
 
 
 
 
 
 
24 x 24
 
.000300"
 
3
 
180
24 x 36
 
.000400"
 
4
 
360
24 x 48
 
.000600"
 
6
 
720
36 x 36
 
.000600"
 
4
 
540
36 x 48
 
.000800"
 
6
 
1080
 
 
 
 
 
 
 
36 x 60
 
.001000"
 
6
 
1350
36 x 72
 
.001200"
 
6
 
1620
48 x 48
 
.000800"
 
6
 
1440
48 x 60
 
.001200"
 
6
 
1800
48 x 72
 
.001400"
 
6
 
2160
48 x 96
 
.002000"
 
8
 
3840

Other sizes & thicknesses on request.

Call today for a quote 1-800-874-5441
or e-mail us at sales@PyramidGranite.com

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