Sase PDG 8000, Manual

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Determining Diamond Selection
Diamond Background
Diamond abrasives usually consist of 2 components:
Diamond powder (also known as diamond crystals or grit). By chang-
ing the size of the diamond powder or grit, we can change how
coarse or fi ne the scratches will be that are left behind from the
grinding process.
A binding agent (metal or resin). Diamond powder is mixed and sus-
pended in either a metal or resin binding agent. When suspended in a
metal bond matrix, the finished product is referred to as a Metal Bond
or Sintered diamond segment. When suspended in a resin bond ma-
trix, the finished product is referred to as a Resin Bond diamond seg-
ment or pad
General Diamond Principles
Diamond Grit Size:
Changing the size of the diamond grit to a smaller particle/ grit size will
affect the performance of the diamond tool in the following ways:
Create a finer scratch pattern.
Increase the life of the diamond tool.
The opposite will occur when changing to a larger particle/grit size.
The Binding Agent/Metal Bond or Resin Bond:
Increasing hardness of bond will:
Increase life of diamond tool.
Decrease production rate.
Cause diamond tool to leave finer scratches in dry - grinding
applications (when compared to a softer bond diamond tool with
the same diamond grit size).
A hard bond matrix should be used on a soft floor and a soft
bond matrix should be used on a hard floor.
Grinding
disc set-up
The set-up of diamond segments on the grinding heads of the machine will
influence the performance of the machine, the productivity levels and also
the finished floor quality.
There are basically two types of diamond configurations that can be used
when grinding:
1. Half set of diamonds – when there are diamonds placed at three
alternating positions on the diamond holder discs. ( See pictures
on upper right).
2.
Full set of diamonds – when there are diamonds placed at each
of the six positions on the diamond holder discs.
(See pictures on middle right).