China is a country with a population of 1.4 billion, and the number of e-commerce users exceeds 1 billion. With the rapid development of e-commerce, it has brought a courier market of over 200 billion.
Therefore, the quality of the express box is the top priority. We often see damaged packaging, collapsed packaging, and damaged items when we receive express delivery.

Stiffness is an important performance index of cardboard. After cardboard is made into cartons or other products, it must have sufficient stiffness to withstand external pressure without deformation or damage.
Therefore, stiffness is very important for yellow cardboard, boxboard, white cardboard, corrugated base paper, etc. used as packaging materials.
So, how to test whether the stiffness of the cardboard is qualified?

Are there any measurable methods and guarantees for these packages? The answer is yes.
Haida has been developed according to the relevant regulations of ISO2493 "Determination of Stiffness of Paper and Cardboard" and GBT 22364-2008 "Determination of Bending Stiffness of Paper and Cardboard". Burr is a static bending strength index.
This instrument is a special instrument for measuring cardboard stiffness. Its measurement range is 20~10000Mn.m, and it has the advantages of simple touch screen operation, accurate testing and high reliability. It is the diligent pursuit of every Haida person to let every company have high-quality inspection instruments!