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COMPRESSION SET
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RUBBER TESTING INSTRUMENTS
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www.prestogroup.com
Compression Set ApparatusConstant Strain Plates Type
1983-2015
32YEARS
TIME S T TES ENTE UMD T STRESTING IN
1983-2015
32YEARS
TIME S T TES ENTE UMD T STRESTING IN
www.prestogroup.com
Compression Set Apparatus-Constant Strain Plates Type
Model PCS - 02
Top Plate
Handle
Lead Screw
Guide Rod
Polished Plates
Spacers
®
1983-2015
32YEARS
TIME S T TES ENTE UMD T STRESTING IN
www.prestogroup.com
Compression Set Apparatus-Constant Strain Plates Type
Electrical Requirement : N/ADimensions : 20 cm x 10 cm x 26 cmApproximate Weight : nett 5 Kg, Gross (Packed) : 8.0 Kg
Compression set of Rubber components is defined as the difference between the original thickness of a disc shaped test
specimen taken either from the component or moulded from the compound from which the component is to be moulded
and that after compression and subsequent recovery, expressed as percentage of the initially applied compression. It to
retain its elastic property after prolonged compression.
The compression set may be determined after subjecting the test specimen either to a constant deflection or pressing it
under a constant load. Compression set under constant deflection is determined by subjecting a cylindrical disc shaped test
specimen to a fixed strain for a specified time at either room temperature or any other specified temperature, and then
allowing it to recover for a given time.
The “PRESTO” Compression Set Apparatus for determination of compression set under constant strain consists strain
consists of four polished steel plates having flat and parallel ground faces. The plates are held together by a pair of allen bolts.
Ring shaped spacers of specified thickness made of magnetic stainless steel are provided to give the desired compression to
the test specimens. The apparatus may be kept inside a hot air oven for conducting the test at elevated temperatures.
Technical Data:
Number of specimens tested at a time : 3
Size of stainless steel plates : 45 x 10 x 130 mm
Diameter of spacers : 30 mm
Thickness of spacers : 9.40 +/- 0.01 mm (for large specimens)
4.70 +/- 0.01 mm (for small specimens)
Optional Accessories :
A)Moulding dies made of carbon steel for moulding large and small test specimens and rotary type cutting dies made of die
steel for cutting out specimens from moulded test slabs or from finished components .
B)Bench thickness gauge for measuring thickness of the test specimens before and after compression is also available as an
optional accessory. It consists of a dial gauge of range upto 25mm x 0.01 mm fitted on a stand having a raised anvil of 9.5
mm diameter. A spherical pressure foot of 6.33 mm diameter is attached to the lower end of stem of the dial gauge and
applies a dead load of 85 g on the test specimen placed on the anvil.
Related Standards :
IS 3400 (Part 10) – 1977 : Methods of Test for vulcanized Rubbers Part X: Compression Set at Constant
ASTM D395 -1978 : Standard Test Method for Rubber Properties Method B: Compression Set Under Constant Deflection in Air
ISO 815 – 1972 : Vulcanized Rubbers – Determination of Compression Set under Constant Deflection at Normal at Normal or High Temperatures.
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1983-2015
32YEARS
TIME S T TES ENTE UMD T STRESTING IN
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Key to our success, Our valued customers
Presto Stantest Private Limited I-42A, DLF Industrial Area Phase-I, Delhi Mathura Road, Faridabad 121003, Haryana, IndiaP : +91 129 4272727 E : [email protected] Mumbai503 B, Fair link Centre, Opp. Fame Adlab Behind Mongini’s Off Link Road Andheri (West), Mumbai 400058P : +91 022 42957052, 42957053E : [email protected]
Head Office :
Branches : Kolkata
rd93, 3 Floor, Karnani Estate209, A.J.C. Bose Road Kolkata-700017. West Bengal P : +91 033 40612012E : [email protected]
ChennaiA-3,First Floor, Sri Sathya Sai Building755, Poonamallee High Road, KilpaukChennai- 600 010. Tamil NaduP : +91 044 43865260, 43838372E : [email protected]
www.prestogroup.com
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1983-2015
32YEARS
TIME S T TES ENTE UMD T STRESTING IN
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