Concrete pumps - the indispensable helpers on construction sites
There is hardly a construction site today where concrete is not needed at one point or another. There are various possibilities to transport concrete in large quantities to the construction site and to bring it to the respective place of use.
The different types of concrete pumps
Concrete pumps are divided into truck-mounted concrete pumps, truck mixers, crawler concrete pumps and stationary concrete pumps. In the case of truck-mounted concrete pumps, the pump and placing boom are mounted on a truck. The truck mixer is a combination of truck-mounted concrete mixer, concrete pump and placing boom. The tracked concrete pump is basically a stationary pump mounted on crawlers. Each of these products has its specific advantages and disadvantages and is therefore more suitable for certain applications. However, not every manufacturer or lessor offers all types of these pumps.
The pumping systems for concrete pumps
Concrete pumps are mainly designed as piston pumps or rotor pumps. The piston pump is usually a double piston pump and is driven electrically, hydraulically or by a diesel engine. With the rotor pump, a delivery hose is squeezed through rotating rollers and the concrete is transported in this way. Therefore, these pumps do not require a concrete gate valve and are absolutely tight. This type of pump is also suitable for conveying materials other than concrete. Examples are screed, lean mortar or broken material.
The placing boom as a part of the concrete pump
The placing boom is the part that distributes the concrete in a targeted vertical or horizontal manner. The decisive characteristic values of this part are the reach or reach height, the folding type and the minimum unfolding height. If the placing boom is not located on a truck mixer, the number of boom arms and the support width of the boom are also important. The reach height of the placing boom can be up to 100 m. However, heights of 25 to 50 m are common. At the end of the placing boom there is a movable outlet hose, which is usually 4 m long. The placing boom is controlled by a radio remote control with joystick.
The advantages of the truck mixer
The truck mixer is a combination of concrete mixer, concrete pump and placing boom. It is particularly suitable for smaller construction projects. It has several advantages over truck-mounted concrete pumps:
The concrete is transported to the construction site in a machine and pumped to the place of use.
Only one person is required to operate it. It is therefore much more cost-effective.
As only one machine is required, it is usually faster and more flexible in operation.
Due to its design, no support of the concrete pump or placing boom is necessary.
The truck mixer is very mobile and can also be used in halls.