The COBB Absorption Tester is a conventional instrument for the water absorption test of paper and paperboard, also known as a paper surface absorption weight tester. This instrument uses the Cobb test method in various methods of absorption test, so it is also called the absorbable absorbability tester.

Standards

GB/T 1540 QB/T 1668 ISO535 TAPPI T441

Product Features

Features a rotation structure design, ensuring consistent and efficient water absorption measurements.
Provides a durable and precise testing mechanism, ideal for repeated use in quality control.
Its compact design enhances portability and ease of operation in various testing environments.

Key Technical Parameters

Internal Area of Metal Cylinder (Test Area): 100 ± 0.2 cm²
Height of Cylinder: 50 mm
Test Water Volume: 100 ml ± 5 ml
GSM of Filter Paper: 200~250 g/m²
Rate of Absorption: 75 mm/10 min
Roller Length: 200 ± 0.5 mm
Roller Weight: 10 ± 0.5 kg
Dimensions: 400 x 280 x 400 mm (L x W x H)
Net Weight: 26.5 kg

Why Choose the Absorption Tester?

The COBB Absorption Tester is an indispensable tool for the paper and packaging industries focused on material quality. Since water absorption affects the performance of paper and paperboard, this tester delivers precise results using the Cobb test method, complying with standards like ISO 535 and TAPPI T441. For example, it is widely used to assess packaging materials, ensuring they meet industry requirements for moisture resistance. Its rotation structure and compact design improve testing efficiency, while the durable construction ensures long-term reliability.