C0041 - COFriction Tester

Product details

This extremely easy to use instrument has been manufactured to determine the static 

ａnd kinetic friction of plastic film, sheeting and paper and other sheeted material using 

the horizontal plane principle. 

The coefficient of friction (COF)is a number which represents the friction between two 

surfaces. Friction is a resisting force relating to molecular structure of a surface of one 

material as it slides over the surface of the same or another material. Molecules from one 

surface link with molecules from the other. If you press the objects together more tightly, 

you push the surfaces closer together, joining more molecules. This is why friction is 

proportional to the normal force, how tightly the surfaces have to push on each other 

to keep from breaking. This proportion is the coefficient of friction.

The C.O.Friction Tester can measure Static COF from a resting position and continue to move 

testing surfaces in a relative motion to give an accurate kinetic COF result.

The C.O.Friction Tester employs a moving sled with a stationary table. The table has a clamping 

system preventing slippage of the test piece during a test. The sled is lowered onto the table 

by means of an elevator system, which places the sled so as both test surfaces meet 

simultaneously, eliminating any operator error, which may influence the results of the test.

Different COF results in paper can be influenced by antiskid agents, relative humidity and 

calendering. The accurate COF data obtained by using the C.O.Friction Tester aids in assessing 

problem situations such as: 

• Stack or Pallet stability. e.g.: cartons, sheets, sacks, printed material.