COBB Tester
A Cobb tester is used to measure the water absorbency of paper, paperboard, and corrugated fiberboard. It helps determine how much liquid a material can absorb over a specific time, which is crucial for packaging and printing applications.




COBB Tester (Water Absorption Test)
An equipment to determine the water absorption property of paper, paper board and corrugated fibreboard.
Example:
- A new currency note has a very low COBB Value. i.e. Even if you dip it in water, it will absorb very less water.
- A newsprint paper on the other hand has a very high COBB Value. i.e. it will absorb water very quickly.
Salient Features :
- World's easiest and best COBB Tester.
- Our COBB Tester has a special no-spill design. Normal COBB Testers have to be used near a washbasin or sink. But our COBB Tester gives you the flexibility to test on an Executive's Desk without the fear of spilling any water and spoiling the surroundings. Over the years, you will realise the convenience of this feature as it is very annoying to lift and carry the 8 - 10 Kg machine to the wash basin every time you want to test. Moreover you may not even have a washbasin in the QC Lab, hence making the job even more inconvenient and time consuming.
Types of Test :
- Cobb Index : ( 60 / 120 Second Test )
Is the grams of water absorbed by 1 Sq. Mtr paper or board surface during flooded contact with 1 cm (0.4 inch) water column for 60 or 120 seconds.
- Cobb Index : ( 30 Minute Test )
Is the grams of water absorbed by 1 Sq. Mtr WATERPROOF paper or board surface during flooded contact with 2.5 cm (1.0 inch) water column for 30 minutes.
Technical Specifications :
- Test Area : 100 cm2
- With measuring cylinder for pouring 100 ml water.
- Special 'PackTest' design (no water - spillage).
- User friendly tilting device.
- With couch roller of 10 Kg.
Material of Construction :
- Machine body : Mild Steel. With some parts of Aluminium.
- Body Finish : Automotive Grade Paint
- Couch Roll (10 Kg) : Mild Steel with Paint.
- Water retention chamber : Plastic
- Water measuring cylinder : Plasic
- Water dispensing dish : Stainless Steel
Note : To be used with a Digital Balance of 0.01g accuracy (not included)
Included all models / SKUs :
- Basic Machine.
- 10 Kg Roller.
- Rubber Mat.
- 100 ml Measuring Cylinder.
- Cut Sheets of Blotting Paper.
- Domestic models are supplied with 100 Cut Sheets of Blotting Paper (Suitable for upto 100 tests)
- Export models are supplied with 200 Cut Sheets of Blotting Paper (Suitable for upto 200 tests)
- DQ/IQ/OQ Documentation are supplied with certain SKUs for Pharmaceutical Industry use.
Excluded (to buy locally) :
- Weighing Balance of 10 mg (0.01 gm) or better resolution.
Software Options :
- No Software / Not Applicable
Utilities Required :
- De-mineralised water for testing.
Warranty : 12 Months (Back-to-Bench)
Terms and Conditions

Delivery / Freight Charges
Prices (if mentioned) on our website DO NOT INCLUDE Delivery / Freight Charges.
Domestic (India) customers will have the option of Freight To-Pay / Freight Prepaid.
Export (Outside - India) customer will have the option of Freight Prepaid or their can collect on their own Courier Account with UPS / DHL / FEDEX, etc.
If you want Freight Prepaid, let us know after receiving the quotation. We will add delivery charges and resend the offer.
Product Lead Time
Lead Time mentioned in the description is a tentative timeline for us to dispatch the product. Please consider additional days for transit period by courier / freight agency. This timeline is on "Best Effort" basis.
Sometimes there can be a delay due to unforseen circumstances beyond our normal control. Delays if any will be intimated to you at the time of ordering.


Product Warranty
Unless otherwise specified in the description, all products and accessories (excluding consumables and spares) manufactured / sold by us are covered under a standard 12 month warranty period.
The warranty is "Ex-Factory" or "Back-to-Bench", meaning the product or defective part will have to be sent back to us for repair or replacement. To and Fro Freight / Courier charges are to be borne by the buyer. The warranty only covers manufacturing defects and not misuse or any other damages.
