Comparison of 47m and 49 Meter Pump Truck

Recently, a friend asked me that he wanted to buy a pump truck with a boom length of 47 meters or 49 meters. However, he heard from others that the price of the pump truck is calculated according to the length of the boom, because the price of the pump truck that has been circulating in the market is 10,000 dollars per meter of boom. Therefore, he felt that 49 meters concrete pump truck would cost 20,000 more than 47 meters concrete pump truck. However, the jib is only 2 meters longer than 47 meters. Is it useful?

First of all, there is no way to study how this price calculation method in the market is derived. Personally, I don’t think the credibility is high. If this price was placed more than ten years ago, I might believe it, because the boom pump truck at that time was considered a rarity. However, in the current concrete machinery market, there are many brands and fierce competition, and it is impossible to sell them at a price of 10,000 dollars per meters. Since the price of this kind of host equipment is generally a commercial secret, I can only tell him from the perspective of using a car, what is the difference between 47 meters and 49 meters.

I found two well-known mainframe brands, and looked at the difference between the 47m and 49m pump truck. The final conclusion is that the 47m and 49m pump truck, the chassis, functional configuration, etc. Almost the same, only the length of the jib has increased by 2 meters. 5RZ jib is used for 47 meters concrete pump truck, and 6RZ jib is used for 49 meters pump truck. The more the number of jibs, the better the flexibility. This is like the joints of the human body, the more the number, the better the flexibility and the better the flexibility of the body. Therefore, after the comparison here, it can only be explained that the 49-meter 6-section jib is more flexible than the 49-meter 5-section jib.

Take out 47 meters and 49 meters pump truck with the same chassis, functional configuration and pumping performance for comparison, and the extra 2 meters are all added to the fifth jib, that is to say, 47 meters pump truck and 49 meters, the lengths of the 4 arms are exactly the same. Even the shape and layout of the pump tubes are the same, only the length of the fifth jib is increased by 2 meters.

Personally, I think that the extra 2 meters length is quite advantageous if the 49 meter pump truck is pumping concrete horizontally or downward. Because at this time, the length of the boom directly determines the pumping range. And if the concrete is pumped vertically upwards, no matter whether it is 47 meters or 49 meters, the fifth section of the boom will bend downwards at the end. After the front four jibs are deployed, 47 meters is the same as 49 meters. Therefore, the pumping range has little to do with the length of the fifth boom, and this advantage will decrease as the building floor increases.