Water absorption tester- Cobb Tester TP-C21

Name: Water absorption tester- Cobb Tester TP-C21
Brand: Labtron
SKU: TP-C21
Rating: 5 (741 reviews)

Water absorption tester- Cobb Tester TP-C21 is used for the determination of the water absorption of sized paper, paperboard, and corrugated paper under standard conditions within 200 to 250 g/m2 range by Cobb method. It is adopted with overturn structure for ease of operations.

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Metal Cylinder inner area	(100 ± 0.2) cm2
Metal Cylinder height	50 mm
Metal roller width	(200 ± 0..5) mm
Metal roller weight	(10 ± 0.5) kg
Absorbency paper	200 to 250 g/m2
Absorbency speed	75 mm/10 min
Sample diameter	125 mm
Dimension	270×400×300 mm
Net Weight	35 kg

dopted with overturn structure
Use of Cobb method for water absorption
Absorption speed 75 mm/10 min
Sample diameter 125 mm
User friendly operation

Cobb tester (water absorption tester) is used to test water absorption of sized paper, paperboard, corrugated paper in paper & printing industry, packaging industry.

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Water absorption tester- Cobb Tester TP-C21 Catalog

Models of Paper Testing Instruments

Labtron Paper Testing Instruments requires air supply for automatic clamping, ensuring smooth and secure operation. These provide real-time pressure curve displays, allowing users to monitor pressure changes instantly. Their over-range reset function protects the sensor by automatically adjusting it in case of excessive readings. They measure ink absorption values, useful for quality control in printing processes. Our paper testing instruments measure WH Hunter whiteness, YI yellowness, and CIE whiteness for precise color and whiteness evaluations for various applications.

Water absorption tester TP-C20

Measurement range : 0 to 200 mm
Specimen size : 15×250 mm
Division value : 1 mm
Number of specimen holders : 5

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Measuring range : 1 to 50 kN
Indication error : < ± 1%
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Operating stroke : 800 mm/ 1000 mm/ 1200 mm/ 1500 mm (customized)

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Digital Paper Thickness Tester TP-E30

Measuring range : 0 to 5 mm
Division value : 0.001 mm
Measuring parallelism : ≤ 0.002 mm
Indication error : ± 0.0025 mm or ± 0.5 %

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Measurement range : 0 to 100° SR
Sealed testing speed : 100 ± 10 mm/s
Volume of distilled water : 1000 ± 5 ml
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Paper and cardboard thickness meter TP-E21

Measuring range : 0 to 20 mm
Accuracy : 0.01 mm
Gauge : Analogue gauge display
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Vertical Tensile Tester LVTT-D13

Capacity (MAX) : 5KN (10N, 20N, 50N, 100N, 200N, 500N, 1KN, 2KN, 5KN sensors available)
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Unit of Force : N, kN, gf, kgf, lbf, kP, tf(SI), tf (long)...
Unit of Length : mm, cm, Inch, m, km, um..