Specac Atlas Lightweight Evacuable Pellet Die, User Manual

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Atlas™ Lightweight Evacuable Pellet Dies
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1. Introduction
Thank you for purchasing a Specac product.
The Atlas™ Lightweight Evacuable Pellet Dies have been specifically
designed to work with the range of Atlas™ Power and Autotouch
Presses up to a maximum load rating of 40 tons. The Lightweight Dies
are also compatible for use with Specac’s 15 and 25 tons Atlas™
Manual Hydraulic Presses.
The Dies are made of 440C stainless steel and offered to prepare
pellet discs of 32mm or 40mm diameter size. They are well suited for
the preparation of solid pellets for study by X-Ray Fluorescence
spectroscopy. When many samples are to be prepared for study, the
physical effort required to load and remove an Atlas™ Lightweight
Evacuable Pellet Die into a press is greatly reduced, as the Dies
themselves are physically smaller and lighter in weight by comparison
to conventional 32mm and 40mm diameter pellet dies.
To aid in the weight reduction there are no individual internal pressing
pellets as with conventional Dies and so a sample is compressed
between the plunger and the base pieces of the Lightweight Die
assembly. For this reason, both the plunger and base have a highly
polished surface that contacts with the sample. The highly polished
faces help in producing an even surface finish to the sample pellet and
in release of the sample from the Die components.
The Lightweight Dies have an evacuation port and can be operated
using a partial vacuum for the compression of samples into pellets that
may be moisture sensitive.
These user instructions are based upon the 40mm Lightweight Die P/N
GS25411 shown as an example throughout. The same instructions
apply for use of the 32mm Lightweight Die P/N GS25410.