Portable hardness tester

The Portable hardness test can be divided into two groups: Portable and Superficial Portable. The difference is given by the test loads, which for the Portable test are heavier than for the Superficial Portable test.

The TIANXING Portable hardness testers allow overcoming some limitations of the Portable method. The main disadvantage of the traditional Portable hardness testers is that the accuracy of testing depends to a large degree on the perfect contact between the work piece and its support, usually called the anvil. In the presence of oil coat, some grease or other between the test part and the anvil, a little movement occurs during load application, when added to the indentation depth, gives a wrong result, decreasing the hardness value. Because it is not always possible to work in perfect conditions, for example in heat treatment or workshop environments, this is an important consideration. To overcome this problem, almost our hardness testers work according to a modification to the Portable principle. In this case, a support on the test surface gives the penetration depth. Therefore, any movement of the part, elevating screw or stand, does not influence the test result. Thanks to this method, the same advantages of the Portable and Portable principle are reached. The TIANXING bench hardness testers have a third important component, called clamping shield. The clamping shield is used for locking of the test piece, avoiding the use of any special support; the clamping shield can be easily removed if needed. In portable hardness testers, this component is called base, it is interchangeable and helps creating a perfect support on the test piece.

Some of our hardness testers:

The TIANXING Portable hardness testers are designed to take the advantages from the Portable test, such as the employ of diamond indenters for testing tempered steel or hard metals, and the ball penetrators for soft metals. The Portable method allows testing of plastic even under load.

All TIANXING Portable hardness testers operate according to a variant of the Portable method that permits accurate and reliable results also in the presence of deflection of the test part.

The series TIANXING Portable hardness testers is based on a new testing method based on the measurement of the electrical resistivity and patented by TIANXING. This method allows determining in a rapid way the material hardness in awkward test points, such as interiors, irregular shapes, gear evolvents.

The experience and the specialisation, the possibility to offer customized solutions, the extensive range of Portable hardness testers make TIANXING a worldwide leader in the production of testing instruments.