As is known to all, hardness testing machine is a kind of special instruments to measure the hardness of coating surface. The hardness testing machine is mainly divided into two types of desktop hardness testing machine and portable hardness testing machine, during which the former is mainly applied for laboratory use, with its advantage of high precision, while the latter is adapted in the machenical or permanent assemblies, easy to carry. Besides there are many kinds of such machine when subdivided, such as richter hardness testing machine, rockwell hardness testing machine and so on.

One of the significant application of hardness testing machine is the rockwell hardness tester, which possesses unique cantilevered structure, or commonly known as convex nose structure, able to test the workpiece surface which can not be directly measured by the general hardness testers, such as inner surface, rough surface, groove surface and so on without damaging the test specimen. Besides, according to the rockwell hardness testing machine manufacturers, in addition to the national initiative function of aluminium and aluminium alloy conversation, it also possesses many auxiliary functions such as data processing, free conversion of hardness standard and so on.

For so many years, the hardness testing equipment has been a widely applied product of intense demand in domestic market. Due to the technology updating speed of testing machine products abroad has been more quickly, and the potencial function and long term stabilty as well as operating properties of abroad ones are far better than the domestic ones, so far we have no idea to fully control the market penetration of foreign countries in our country. In 2003 the domestic hardness testing machine sale value has reached a total of 8.43 billion dollars, with an annual rate of growth of 6.7% and in the same year the value of imported amount of hardness testing machine has reached 2.03 billion, with an anuual rate of growth of 21.3%.

As is replied of relevant professionals, up to now, there have been the largest number of hardness testing machine enterprises in our country compared with all over the world, and the testing machines provided by such enterprise cluster can basically meet the demand of market requirment of cheap products in our country. Besides, some individual product price has been close to or has reached the international advanced level. Meanwhile, some well-known international testing machine manufacturing enterprises have stepped into the chinese market, therefore, to be sure there will be a bright future in the development of testing machine.