Cobb Tester is a laboratory testing instrument designed to measure the water absorbency of paper, paperboard, cardboard, and corrugated fibreboard. It helps manufacturers and quality-control teams evaluate how packaging materials respond to water exposure.

Key Features

• Designed for water-absorbency testing
• Suitable for paper, paperboard, cardboard, and corrugated fibreboard
• Supports material-quality assessment
• Useful for routine laboratory testing
• Applicable to packaging and paper-industry quality control

Benefits

• Helps assess material response to water exposure
• Supports packaging-material quality control
• Provides a controlled method for absorbency evaluation
• Useful for comparing suitable paper and board materials

Applications

• Paper mills
• Packaging manufacturers
• Printers
• Corrugated-box production
• Laboratories and research

Specifications

• Sample Diameter: 130 mm (Approx.)
• Cylinder Depth: 60 mm
• Rubber Pad Diameter: 145 mm
• Water Level Indicator: 10 mm and 25 mm markings inside the cylinder
• Roller Weight: 10 kg (Approx.)
• Body Material: Stainless Steel / Mild Steel

FAQ

What does a Cobb Tester measure?
It measures the water absorbency of suitable paper, paperboard, cardboard, and corrugated fibreboard.

Why is water-absorbency testing useful?
It helps evaluate how packaging materials respond to water exposure and supports material-quality assessment.