Tests on specimens of Rubber that you cannot afford to ignore.

Explore our unbeatable range of rubber testing equipment, which is used in the rubber industries of innumerable countries for different testing purposes. Manufactured from superior quality metal, our rubber testing equipment has been proved extremely helpful for conducting cylindrical rubber test and determining abrasion resistance of vulcanized rubber. We manufacture rubber testing equipment in a wide variety, which include flexing machine, adhesion tester, ageing oven, tensile testing machine etc.

One of the accepted procedures for determination of flexing resistance makes use of a De Mattia flexing tester. This tester provides useful information about the resistance of compounds of vulcanized rubber to flex cracking when subjected to flexing. Cracks develop in that part of the surface where stresses are set up during flexing, or if that part of the surface initially contains a crack, cause this crack to extend in a direction perpendicular to the stress.

The De Mattia Flex Tester consists of a set of grips to hold test specimens in two tiers with their holding faces lying in the same vertical plane. The flexing and un-flexing action is provided by holding one end of the test specimens in a fixed grip and the other end in a reciprocating grip.

The set of grips has two fixed grips and one large reciprocating grip positioned between them in order to flex half of the test specimens while the other half are being un-flexed. The reciprocating grip is fitted with gunmetal bushes, which slide on hardened and ground rods made of high carbon steel. The reciprocating motion is provided by an eccentric and linkage mechanism driven by an electric motor through a V-belt and pulleys.
A six digit electronic counter with reset and memory backup is provided for indicating the number of test cycles undergone.
The equipment is built on a rigid metallic base plate and finished in grey hammer tone stove painting and bright chrome / zinc plating to give it a corrosion resistant finish.

The standard model of the tester is designed to test up to six test specimens at one time. A special model capable of testing up to twelve test specimens at a time can also be offered against specific enquiries.

Moulding dies for preparing test specimen and jig and punch assembly for making initial crack in test specimens for crack growth test are available as optional accessories.

A special model of the tester, which can test up to twelve rubber specimens at elevated temperature, is also available. In this model the grips of the tester are placed inside a double walled oven having a front door fitted with toughened glass. The inner walls of the oven are made of aluminium sheet while the outer ones are of mild steel sheet. The space between the walls is filled with mineral wool for insulation. An electric heating element is provided for heating the air in the oven. An air-circulating fan for uniform temperature distribution in the oven is also provided. The temperature of the oven is controlled and indicated by a digital temperature controller cum indicator.

In DIN method of determining abrasion resistance of vulcanized natural or synthetic rubber, a cylindrical rubber test specimen is abraded against an abrasive surface mounted on rotating cylindrical drum in such a manner that abrasion takes place on one of the flat ends of the test specimen which is held against the abrasive surface under a specified load while being traversed across it. The ratio of the volume loss of a standard rubber to the volume loss of the test rubber measured under the same conditions, expressed as a percentage, gives the abrasion resistance index of the rubber under test. The DIN AbrasionTester is designed to determine abrasion resistance index of natural and synthetic rubber in accordance with the above principle. It consists of test specimen holder with arrangement to adjust the length of test specimen protruding out. The holder is mounted on a swivable arm pivoted in a bracket which moves laterally by a screw mechanism along the length of a worm reduction gear box with V-belt and pulleys to give the specified speed of rotation to the drum and the specified lateral movement to the test specimen holder. The swivable arm and test specimen holder are so designed that the test specimen is pressed against the drum under the specified load with its center axis at an inclination of 3 deg to the perpendicular in the direction of rotation and placed above the longitudinal axis of drum. ETS ETS

Spare abrasive cloths, moulding die and rotary type cutting die hollow drill for preparing test specimen are available as optional accessories.

This equipment is suitable for research and development program in military footwear quality and comfort. The ageing oven shall be suitable for precision ageing of rubbers and plastics under controlled condition.

FEATURES
The Ageing Oven shall be in cabinet type, to be used for precision ageing of rubber and plastics under controlled

The equipment shall be designed to determine the properties of the polymer based material exposed to heat especially in the shoe research laboratory.

The oven shall have good control of temperature, air speed and air exchange rate which is very important for goodrepeatability and reproducibility when doing heat ageing tests of polymer materials. The oven shall have separate system form temperature control and indication with alarm. There shall be at least 3 shelf positions with 2 shelves included. The oven shall include at least 15 sample rod positions and with 10 sample rods. The oven shall have a run-time meter. There shall be a temperature controlled cooling fan for the electronics cabinet. There shall be a temperature indicator with sensor in the inner chamber. The oven shall have adjustable over and under temperature limits with alarm. The oven shall have low air speed and shall be dependent on the exchange rate only, which is specified in the ISO 188 method A. There shall be an indication of power failure.