The breaker is a common accessory of the excavator. The reasonable application of the breaker is very important to the workability of the excavator. Many users often have large misunderstandings in the selection of the spare parts of the breaker. It is the choice of the hammer drill rod, let's take a look at it together.
After the breaker has been used for a period of time, a new drill rod must be replaced to a certain extent. In addition to the influence of the working conditions, the life of a breaker drill rod also depends on whether the quality of the drill rod itself is excellent in wear resistance. The quality of the drill rod is determined by the material selected and the heat treatment process. Under the premise of stable heat treatment process, the material of the drill rod is the key basis for distinguishing its wear resistance. With the increase in the competitive price of manufacturers, many production The dealer selected inferior materials to control the cost, but the wear resistance of the drill rod of the breaker decreased, and the life was naturally shortened. At this time, the method of extending the drill rod was adopted to make up for its shortened life.
Extended drill rods do not outlive high quality drill rods, and the pitfalls and risks of choosing an extended breaker rod are invisible to many users:
1. Extending the hammer drill rod will increase the probability of the drill rod breaking during application, which will greatly increase the cost of users.
2. It will reduce the striking force of the hammer. The breaking hammer uses hydraulic oil and air pressure to advance the reciprocating motion of the piston to hit the drill rod, so that the kinetic energy is transmitted to the tip of the drill rod of the breaking hammer, and then converted into impact force to achieve the breaking effect. The long drill rod will cause the conversion rate of kinetic energy to decrease during the transmission process, resulting in insufficient striking force of the hammer and reduced work efficiency.
