Use of Consistency Determination Apparatus and Crush Tester in Pulp and Paper Testing

Use of Consistency Determination Apparatus and Crush Tester in Pulp and Paper Testing

Consistency determination apparatus offers a simple and rapid method of determining the consistency of pulp suspension in freeness tests. It is robust, corrosion resistant, and is constructed utilizing stainless steel. This Consistency Determination Apparatus is suitable for use with all mill stocks and pulps prepared in the laboratory for evaluation purposes. It is generally used for various other purposes which involve the concentration of pulps including confirmation of the mass of pulp used in freeness tests. It is particularly useful in preparing pulp samples for laboratory beating in the PFI mill.

This apparatus consists of a top container fitted with quick release chips sealed to a wire screen by a soft rubber gasket. The screen is supported over a drainage cone to which a vacuum line is attached. The wire screen is 60 mesh plain weave stainless steel wire gauze which is supported by a frame fitted with a split metal ring, which permits ease of replacement. The volume of the receiving cone comfortably contains 500 ml of water. The main characteristic of this apparatus is its simplicity that provides rapid and efficient operation.

Ring Crush Tester

A Laboratory crush tester or Ring Crush Tester are equipment that is used inaccurate testing of paper, board, painted, electroplated surfaces, plastic coated materials etc. It has many special features to make measuring easier. This ring crush test is used to determine the ring crush resistance of a paper strip formed into a ring with a standardized length and width. This test is performed according to ISO 12192 and TAPPI T 822.

Measurement and start positions are memorized by this instrument, which makes operations very easy. After the completion of the measurement, the tested results and correct units are directly displayed on the screens.