Dia-Grid RIGID Product Guide

Refer to the original PDF for tables, figures and page layout.

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Product Guide 
www.alliedhightech.com 
Allied High Tech Products, Inc. 
Call for more information: 800.675.1118 
Dia-Grid RIGID Discs 
Date: 06/2020, v1.1 
Resin bond Dia-Grid RIGID discs are recommended for 
hard-to-grind materials. They feature diamond particles in 
raised patterns provide increased cutting rates, enhanced 
cooling and efficient removal of debris. They are extremely 
durable, and provide excellent edge retention and sample 
flatness. Wide, low-profile tabs along the perimeter of the 
disc allow easy removal after use. 
Dia-Grid RIGID discs are available with magnetic or adhesive 
backing. Magnetic back disc item numbers end in “M.” 
Warning! 
•
Do not start platen rotation until the disc is firmly fastened to the platen.
•
Keep hands, fingers and body parts away from moving edges to avoid injury.
•
Turn off platen rotation and wait for the platen to completely stop before attaching
or removing the Dia-Grid RIGID disc.
Grade 
8" (200mm) 
10" (250mm) 
12" (300 mm) 
120 Grit 
50-70805M
50-71005M
50-71205M
50-70805
50-71005
50-71205
220 Grit 
50-70810M
50-71010M
50-71210M
50-70810
50-71010
50-71210
600 Grit 
(P-1200) 
50-70820M
50-71020M
50-71220M
50-70820
50-71020
50-71220
Life Expectancy 
Product life will vary depending upon factors such as frequency of use, size and type of 
samples, and the number of samples being ground. White wear indicators will appear when the 
diamond is completely worn from each segment; the disc should be replaced once the 
indicators appear. 
Cleaning 
Clean Dia-Grid RIGID discs by applying water and soap to the surface; for more aggressive 
cleaning, scrub the disc with a stiff non-metallic brush. After cleaning, it is recommended to 
spin-dry the disc to remove most of the water from the surface before storing it. 


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Usage Guidelines 
Upon initial use, the Dia-Grid RIGID disc will take about 6-10 minutes of operation before 
grinding at its highest efficiency. 
Only water should be used for grinding; the use of any other lubricants may produce 
undesirable effects. Allied High Tech Products assumes no responsibility for damages resulting 
from misuse. 
The optimal material removal rate is achieved at 300 RPM with an applied force of 
6-8 lbf (27-36 N) for each 1.25" (32 mm) ø mount. Samples that take up more area of the
mount may require greater forces to maintain efficiency.
Dressing 
It is normal for the encapsulating resin and/or sample debris to build up and clog the diamond 
abrasive (Figure 1), reducing its effectiveness and diminishing its capability to remove material 
at the same rate after numerous cycles. A white, aluminum oxide dressing stick (# 60-20108) is 
supplied with each disc to remove build up. Contact Allied to purchase a replacement dressing 
stick. 
1. Prior to use, soak the dressing stick in water for
3 minutes.
2. Fasten a Dia-Grid RIGID disc to a platen.
3. Keep hands clear of the edges of the disc and
activate clockwise platen rotation at 100-200 RPM.
Turn on flowing water as a lubricant.
4. Using both hands, hold the dressing stick
lengthwise and apply firm pressure to the side of
the disc that rotates away from the user.
Simultaneously, move it from the center to the
edge of the disc (Figure 2). Dressing times
depend upon the elapsed time between
dressing operations.
5. Stop the platen completely. Then remove and wash the disc thoroughly to remove the
dislodged debris and aluminum oxide particles. For more aggressive cleaning, scrub the
disc with a non-metallic brush.
Figure 1: Left: Debris buildup on diamond segments Right: Same location after dressing 
Figure 2: Apply the dressing stick to the side of the 
disc that rotates away from the user. Simultaneously 
move it from the center to the edge of the disc. 
www.alliedhightech.com 
Allied High Tech Products, Inc. 
Call for more information: 800.675.1118