Paper & Packaging
Digital COP (Cobb) Tester
Water absorptiveness by the Cobb method
Determines the water absorptiveness of sized paper and board by the Cobb method. A precision ring clamps the specimen while a digital timer with controller manages the exact contact time before the sample is weighed.

Technical specifications
Test principle
Cobb water absorptiveness
Test area
100 cm² standard ring
Timer
Digital with preset test durations
Construction
Powder-coated body, stainless tray
Accessories
Roller, cylinder, blotting paper
Power
230 V AC, 50 Hz
Applications
Sizing control of paper and board
Liquid packaging board qualification
Corrugation and lamination suitability
Water-resistance coating validation
Frequently asked questions
What is the Digital COP (Cobb) Tester?+
Determines the water absorptiveness of sized paper and board by the Cobb method. A precision ring clamps the specimen while a digital timer with controller manages the exact contact time before the sample is weighed.
What standards does the Digital COP (Cobb) Tester comply with?+
The Digital COP (Cobb) Tester complies with the following standards: ISO 535, TAPPI T 441.
What are the key features?+
- Machined clamping ring with quick lever lock
- Digital timer and temperature controller
- Stainless drip tray for clean working
- Separate control box for bench flexibility
- Simple zero and reset controls
- Supplied with roller and blotting accessories
Where can I buy the Digital COP (Cobb) Tester in India?+
The Digital COP (Cobb) Tester is manufactured and sold by Techno India, based in Roorkee, Uttarakhand. Contact us at sales@techno-india.com or call 08077928706 for pricing and delivery. We provide installation, calibration and AMC across India.
Next step
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