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The Electron Microscopy Sciences Precision Lapping and Polishing Fixtures are designed to accurately produce polished parallel, tapered or critically oriented samples with minimal sub-surface damage. A series of specialised fixtures has been developed for lapping and polishing samples up to 6″ in diameter, TEM samples and oriented crystals. In addition to size and shape, the fixtures differ in the type of thickness control techniques they employ. The Lapping and Polishing Fixtures are designed to be used either by hand or with a lapping machine (Model 920). Sample Mounting Fixtures are also designed to be used in conjunction with these fixtures to ensure that the sample is mounted parallel to the mounting block and that a thin, uniform layer of wax exists between the mounting block and the sample.
Model 145 — This model accommodates up to a½» sample mount, which is held in place using a threaded draw rod and locating pin. This small, lightweight fixture is ideal for hand lapping or polishing of samples less than ½» in diameter.
Model 150 — This model accommodates sample mounts up to 1″ in diameter for both parallel and tapered samples. Angled blocks up to 45 degrees are available and are simply mounted in place of standard parallel mounts when tapered sections are desired. The mounting blocks from this fixture are directly transferable from any cutting saw. The Model 150 is for general-purpose fixture and is capable of lapping and polishing multiple small or large samples up to 1″ in diameter.
Model Comparison
Model Height Base Dia Piston Wt Thickness Control Max Dia Max Hgt Sample Mounting 50150-45 145 2.5″ 1.5″ 50g Micrometer 0.5″ 0.4″ Wax 50150-50 150 4.5″ 2.7″ 300g Micrometer 1.0″ 0.5″ Wax
