Cobb Tester

Introduction

Cobb Testers provide accurate water absorption testing for paper, board materials, and packaging in a variety of industrial applications. Their high-precision roller ensures uniform water removal, enhancing measurement reliability. These testers feature a rotating structure absorption meter, guaranteeing consistent and repeatable results. COBB testers are perfect for paper manufacturing, packaging, research labs, quality control, and R&D facilities.

Standards

ISO 535:2023-Paper and board-Determination of water absorptiveness-Cobb method

ISO 12048:1994-Packaging-Complete, filled transport packages-Compression and stacking tests using a compression tester

Complies with the above standards, but is not limited to them.

Features

1. Data export and report templates support quality records.

2. Calibration and reference samples are available.

3. Clear display or software shows results and statistics.

4. Interchangeable fixtures cover strength, tear, burst or related tests.

5. Compact bench design fits testing laboratories.

FAQ

What are the main applications of the Cobb Tester?

The Cobb Tester is used to test mechanical or physical properties of paper, film, packaging or related materials. It supports paper mills, converters, packaging producers, printing and quality-control laboratories.

Which standards and regulations apply to the Cobb Tester?

The tester is designed with reference to applicable ISO, ASTM and GB/T paper, film and packaging methods and IEC 61010 electrical safety. Specimens and procedure must follow the standard. Compliance documentation can be provided on request.

What warranty comes with the Cobb Tester?

The system is covered for 12 months after shipment, including the main mechanism and electrical controls. Replaceable consumables and routine service items are not part of the warranty. Faults caused by improper installation outside the manual or unauthorised modification are not covered.

Is the Cobb Tester difficult to operate?

The controls are designed for regular laboratory use, so most users become confident after a brief introduction. The manual walks through each step, and common settings can be saved for repeat work. Online or on-site training is available if the site requires it.

How long does delivery usually take?

Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.

Does the Cobb Tester need calibration or verification?

Factory calibration is included, and routine verification is recommended every 6 to 12 months using suitable reference materials. Regulated sites may require more frequent checks and documented records. Calibration support and certificates can be provided on request.

Where do we get replacement parts?

Common consumables and standard spare parts are available through our service channel and are not locked to proprietary formats. Quote the model and serial number when ordering so the correct items are supplied. Lead time for standard parts is usually short.

Can it be adapted to our requirements?

Customisation is supported for many installations, including tailored parameters, connections and accessories. Our team reviews the requirement and confirms feasibility and lead time in advance. We avoid committing to options that cannot be delivered reliably.

Is installation and commissioning included?

Most models can be commissioned by following the manual, including positioning, connections, checks and a first test run. Remote guidance is available during start-up. On-site installation, commissioning and training can be arranged separately where required.

What should be avoided when using the Cobb Tester?

Do not use conditioned samples incorrectly, damaged fixtures or wrong speeds. Condition specimens and follow the standard environment. Follow the operating instructions.