""K.V.S. Martindale Abrasion Tester  
 

Abrasion ?
The wearing away of any part of a material by rubbing against another surface is known as Abrasion of that material. There are so many methods for determining the Abrasion Resistance of the fabrics. One of these methods is determination of Abrasion Resistance of the Fabrics by using the Martindale Abrasion Tester. The Abrasion Resistance is measured by subjecting the specimen to rubbing motion in the form of a geometric figure, that is a straight line, which becomes a gradually widening ellipse. Until it forms another straight lines in the opposite direction and traces the same figure again under known conditions of pressure and abrasive action.

Consistency :
The K.V.S. Martindale Abrasion Tester consist of four Testing Tables on which the Abrading Fabric is to be attached, which are mounted on the base plate of the instrument. There is a Revolving Plate, which revolves with the help of three Cam & Pegs. There are four Sleeves attached to the Revolving Plate. The four Sample Holders will be provided with the instrument. There is set of Weights for proper pressure on the test specimen. Two Templates for cutting the Sample, Abrading Fabric and its Mallets are also provided with the Instrument.

Technical Specifications :
 
No. of Specimen Test at a time
:
One to Four
Exposure Area of the Specimen
:
6.45 sq. Cm.
R.P.M. of the Outer Pegs
:
47.5 ± 2.5 R.P.M.
Drive Speed Ratio of Outer Pegs to Inner Pegs
:
32/30
Total Stroke of Outer and Inner Pegs
:
60.5 ± 0.5
Working Pressure on the Test Specimen
:
12 Kpa (in the step of 3 Kpa)
Motor
:
1/5 Hp 220 V AC Single Phase
 
Related Standards  : BS : 5690, ASTM D : 4966