Apply These 4 Tips to Maintain Your Cobb Sizing Tester

Apply These 4 Tips to Maintain Your Cobb Sizing Tester

Every paper and packaging material contains a hygroscopic property that holds the water molecule levels from the surrounding environment. Thus, it is important for you to check the water-holding property of materials so as to protect them from getting damaged. The Cobb sizing tester is one of the accurate testing equipment that is helpful in testing the water-absorptiveness levels of the product.

Those who are working in the paper and packaging industry know how important to test the quality of paper-related products in order to deliver them accurately to your customers. Thus, the Cobb test has the ability to test the water resistance and quantity of water absorbed by the surface of fiberboards. If the fiberboard will absorb more water, then its quality and strength will be high.

Here in this blog, we are going to provide you with information about how you can accurately maintain the Cobb sizing tester. But, first, we will discuss the main purpose of conducting a water absorption test.

What is the main purpose of conducting a water absorptiveness test?

The water absorptiveness test will be conducted to test the ability of materials to absorb water effectively. This amazing lab testing instrument will be helpful in determining the water absorptiveness levels of the product under specified testing conditions in a given span of time. It measures paper's water absorption rate and is expressed as the amount of water pick-up per unit surface area of paper by method T441, IS 1060 (Part -1), 1966. The test duration must be specified to property that will be known as the absorption rate.

When you check the moisture-holding property of corrugated boxes, then it will be helpful in reducing your product rejections. This property is also known as the Cobb value of the boxes and can be determined for a different types of products like food eateries, oil packets, or machinery in them.

You can also read about how the Cobb sizing tester will evaluate the water absorptiveness property of packaging materials. This easy-to-use testing device has been equipped with several advanced features and technical specifications. They are listed below.

Features of Presto Cobb sizing tester

Presto Cobb sizing tester is helpful in determining the water penetration levels of board or paper. This testing equipment will consist of a container in a cylindrical shape clasped to a flat surface. It comes with fast locking mechanism and is lightly weighted giving you highly accurate testing results.

  • High-grade stainless steel test area
  • Comes with rugged structure with the corrosion-resistant main body
  • Lightweight and resilient
  • Fast locking mechanism
  • Can easily be operated single-handedly
  • The hassle-free working operation gives you accurate testing results.
  • Has been made with quality standards like IS 1060, TAPPI –T441

This testing equipment is commonly used in different industries and is helpful to evaluate the water absorptiveness level or Cobb value of the product at a specific time. Below we have listed the technical specifications of this lab testing equipment. To perform the Cobb sizing test accurately, you need to place the specimen accurately.

Now, let us focus on the technical specifications of this lab testing instrument.

Technical Specifications of Presto Cobb sizing tester

  • Placement of machine: Bench Model
  • Diameter of Cylinder: 112mm
  • Depth of Cylinder: 60mm
  • Diameter of Rubber Pad: 145mm
  • Two Water Level Indicators in Cylinder: 10mm and 25mm
  • Weight of Hand Roller: 10Kg (Approx.)
  • Body of Cylinder: Stainless Steel Body
  • Body of Mainframe: Mild Steel Duly Powder Coated
  • Standard: TAPPI – T441, IS 1060

The Cobb value of the material will maintain its value to provide better strength and quality. This test will be designed for papers that are 0.1 mm thick and tells the amount of water a particular sample can easily absorb.

Top 4 care and maintenance tips for Cobb sizing tester

If you want to use this lab testing equipment efficiently for a longer time, then it is important for you to maintain this lab testing equipment. We have come up with some of the essential maintenance tips for Cobb sizing tester that needed to be kept in mind while using the product efficiently.

  • You should not place inflammable material near the equipment.
  • You must properly put the testing specimen on the text fixture.
  • If you find a damaged rubber pad then you must change it to avoid any leakage in products.
  • The thread of the screw plays an important role in clamping the sample. Thus, you need to inspect the thread and if you find it broken then you should replace it with the new one.

By following these maintenance tips you can use the Presto Cobb sizing tester for a longer time. If you are facing any issue regarding its working, features, or any other thing, then we suggest you give us a call at +91 9210903903 or email us at Our team of experts will provide you with the necessary information.

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