Product Description

CCSi designs and manufactures high quality specimen cutting dies completely inhouse at our facility in Akron, OH. Our complete vertical integration allows CCSi to provide exceptional quality dies at competitive prices.

Our process starts with high, quality American made tool steel. We then grind, machine, harden, wire EDM, sharpen, and dimensionally certify the dies. The wire EDM manufacturing process creates perfectly vertical interior walls. This allows the die to be sharpened repeatedly without altering the dimensional characteristics of the sample and provides excellent long term value.

All CCSi dies come with the serial and model number laser engraved for easy identification. Also included is a rugged, foam lined carrying case for protection while the die is not in use.

CCSi manufactures these high quality UltraLife Specimen Cutting Dies for the determination of plasticity and recovery of unvulcanized rubber by means of the parallel plate plastometer, as described in ASTM D926 ‘Standard Test Method for Rubber Property — Plasticity and Recovery (Parallel Plate Method)’.

It is important to note that ISO 2007 ‘Rubber, Unvulcanized — Determination of Plasticity — Rapid Plastimeter Method’ and ASTM D3194 ‘Test Method for Rubber From Natural Sources — Plasticity Retention Index (PRI)’ use a principle similar to this test method and the apparatus, test conditions, and procedures are different. Therefore, the test results may not be correlated.

The CCSi Rotating Specimen Die may be employed to obtain specimens from either plied or homogenous test pieces. This die is equipped with a special integral 0.375 inch diameter shaft, facilitating its mounting in a drill press, or similar device, as it is necessary to rotate the die while cutting the specimen.

The D926 Rotating Specimen Die features a top plate positioned at a height of 10.0 ± 0.04 mm, that allows the 16 ± 0.05 mm Ø cylinder to form a specimen having a volume of 2.00 ± 0.02 cm³. The top plate also has the ‘bored-through’ orifice feature. It should be noted that extra care is required, when forming specimens from plied test pieces, to avoid voids between them.

Accuracy may be further improved by using the CCSi Williams’ Parallel Plate Plastometer (Plastimeter) for precisely performing the D926 Plasticity Procedure and the CCSi ASTM D926 Thickness Gauge, which is specifically designed for performing the D926 Recovery Procedure.

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