Frequently asked questions about excavator stump ripper boom

1. The inside of the excavator stump ripper boom is fixed and integrated with cement. Will it not expand and contract due to weather?

Answer: The material of the excavator stump ripper boom is generally Q345, also called 16 manganese. 16 Meng has a certain degree of metal extensibility. The general thermal expansion and contraction are not a problem at all. Moreover, the inside of the rock arm has been welded in multiple layers, except for the left and right sides. For board-to-board welding, there are many plates that are welded in pairs. Iron blocks and cement are injected into the inside after welding. The simplest example is when do you see the ceramic tiles of your house because of the internal thermal expansion and contraction. Is the tile cracked?

2. The excavator stump ripper boom is made of shock-absorbing type. When working, there will be a lot of iron sand inside and croaking?

Answer: The iron sand is basically compacted, and the inside is completely sealed. When the excavator is opened, the sound of picking up inside will not be heard. Even if a little bit came out, it was nothing compared to the sound of the excavator.

3. How many tonnage excavators are most suitable for excavator stump ripper boom?

Answer: There is no clear limit. Generally, we recommend that 35-60 tonnage excavators are more suitable. Some time ago, I had a customer in Guangxi. The Doosan 220 machine insisted that we make a rock arm for him. Because of the hydraulic system of the machine, a set of rock arm refueling tank and ripper can only be made of 12 tons. The effect is only a little better than the 120 hammer, but the price is 100,000 yuan, which is really a burn. A 135 hammer is only a few dollars in the market. In addition, excavators of more than 60 tonnage can also be used as rock arms. The strength and weight are much larger than those of 40 tonnage excavators, but the disadvantage is that it consumes fuel.

4. Is the excavator stump ripper boom customized? How long does it usually take to do it?

Answer: Rock arms are generally custom-made. It can be said that apart from the state-owned enterprises that can withstand such inventory pressure, a set of rock arms will cost more than 100,000 yuan. There are tens of thousands of excavators, and they are updated quickly. Since the boom is new, our rock boom products have been updated 5 times. Generally, it takes about 20 days from placing an order to completing it.

5. What is the plate used for the excavator stump ripper boom? how thick?

Q345 plates are generally used for rock arms. The side plate and cover plate are both 25, and the arm fork plate is 50.