Cobb Tester
The Cobb Sizing Tester is a specialized laboratory instrument designed to measure the water absorption capacity (Cobb Value) of paper, corrugated boards, and other sheet materials. By determining the amount of liquid absorbed by a specific area of the material under standard conditions, manufacturers can evaluate the effectiveness of sizing and the overall resilience of the surface. This tester is indispensable for industries where moisture resistance is a critical quality parameter, such as packaging and textile manufacturing.
Product Overview
Our Cobb Tester comprises a precision-engineered cylindrical test apparatus, a standardized 10-kg hand roller, and high-absorbent blotting paper. To ensure maximum consistency and eliminate human error associated with manual rubbing, the 10-kg roller method is utilized to apply uniform pressure across the specimen. This standardized procedure ensures that every test result is reliable, repeatable, and compliant with international testing protocols, making it an essential tool for high-standard quality control labs.
Technical Specifications
| Parameter | Specification |
|---|---|
| Test Area | 100 cm 2 |
| Weight | 15 kgs |
| With measuring cylinder for pouring 100 ml water | |
| With Non-Corrosive couch roll of 10 Kg | |
| User friendly tilting device | |
Advanced Features
Multi-Liquid Testing Versatility
The Cobb sizing apparatus is engineered to evaluate the absorption or resistance levels not just for water, but also for oil and other industrial liquids, ensuring comprehensive material analysis.
Standardized 60/120s Paper Test
Optimized for paper testing where the grams of water absorbed by 1 Sq. Mtr surface is measured under a 1 cm water column. Helps in identifying superior resistance to atmospheric moisture.
Extended 30-Min Board Analysis
Specifically designed for high-thickness boards, this feature allows for a 30-minute flooded contact test with a 2.5 cm water column to determine long-term humidity resilience.
Rugged & Trouble-Free Life
Built with heavy-duty, corrosion-resistant materials, the equipment is designed for high-frequency lab usage, offering a long service life with minimal maintenance requirements.