A concrete pump is a machine that conveys fresh concrete through pipelines or hoses from a mixer or truck mixer to the point of placement. It replaces manual transport by wheelbarrow, crane skip or chute on sites where distance, height or access constraints make direct pouring impractical.
Function and Design
Most concrete pumps use a twin-cylinder piston mechanism. Hydraulic cylinders alternately draw concrete from a hopper and push it into the delivery line through a valve system, commonly an S-valve or gate valve. The material travels through steel or rubber pipeline sections under pressure, with typical output pressures ranging from roughly 70 bar to over 100 bar on high-pressure units.
Types of Concrete Pumps
Truck-mounted boom pumps (placing booms) combine the pumping unit with a folding, hydraulically operated boom mounted on a truck chassis. Boom lengths on commercially available units typically range from about 20 m to over 60 m, allowing direct placement over obstacles or into upper floors of a structure without separate pipeline runs.
Trailer and stationary pumps have no integral boom and feed concrete through separately assembled steel pipeline, which can be extended vertically or horizontally over long distances. This design is used for tunnel linings, mass pours and high-rise cores where fixed pipe risers are installed floor by floor.
Line pumps are smaller units, often trailer-mounted, used for screeds, slabs and smaller-volume placements where a boom is not required.
Key Performance Parameters
Concrete pumps are specified by theoretical output (m³/h), maximum pumping pressure (bar), maximum vertical and horizontal delivery distance, and pipeline diameter (commonly 100 mm to 150 mm for boom pumps). Output figures quoted by manufacturers represent theoretical maximum values; achievable site output depends on concrete mix design, pipeline layout, pumping height and placement cycle.
Pumping height is a recurring reference point in high-rise construction. The Burj Khalifa project in Dubai is documented as having achieved a continuous vertical pumping height of 606 m, a figure frequently cited as a benchmark for high-pressure stationary pump performance.
Standards and Safety
In Europe, concrete pumps and placing booms fall under EN 12001, which sets safety requirements for equipment used to convey, spray and place concrete and mortar. Compliance covers boom structural integrity, hydraulic system safety, emergency stop provisions and operator visibility requirements.
Site Planning Considerations
Positioning a concrete pump, particularly a truck-mounted boom pump on outriggers, involves ground-bearing and stability checks. Outrigger loads can reach several hundred kilonewtons per pad depending on boom extension and concrete load in the pipeline, requiring verified ground conditions or load-spreading mats. On sites with temporary works registers, outrigger pad positions, access routes and exclusion zones around the boom swing radius are typically documented and checked before pumping begins.
Concrete Pumps in Our Coverage
Hydraulic component suppliers to the construction equipment sector, including HAWE Hydraulik, visited by Kaufbeuren city council, count concrete pump manufacturers among their customers alongside excavator and loader producers.
Site safety practice around concrete pump deployment is addressed in coverage of the UK temporary works framework: BS 5975: What the UK Temporary Works Standard Means for Your Site notes that outrigger pad positions for concrete pumps should appear on the temporary works register with a design check and permit before loading.
Industry consolidation among equipment manufacturers is covered in Putzmeister acquires truck mixer manufacturer Intermix, describing how the German concrete pump specialist expanded into truck-mounted mixer technology alongside its pump and placing equipment portfolio.