Where the SP90.18.253D fits in the TRUEMAX A9 trailer-pump range
The SP90.18.253D is the mid-range model in the TRUEMAX A9 stationary concrete pump range of three sizes. The SP50.10.82D is the small pump at 49 m³/h and 10 MPa for roads, bridges and light rail; the SP90.18.253D steps up to 90 m³/h and 18 MPa for medium and mid-to-high-rise buildings; and the SP100.23.360D is the high-pressure pump at 100 m³/h and 23 MPa for high-rise concreting. All three share the same S-valve pumping system, open hydraulic circuit and diesel power — the difference is output, pressure and the height each is built to pump to. Choose the SP90.18.253D for everyday building work where concrete has to go up.
How a stationary pump works in the concrete chain
A stationary concrete pump is the delivery link in the concrete chain. Concrete is produced at a batching plant, hauled to site by a concrete truck mixer, and then pushed by the pump through a pipeline to the pour. On a building, the SP90.18.253D sits at ground level and feeds a vertical riser; at the top, a concrete placing boom distributes the concrete across the floor. This pump-and-placing-boom set-up is the standard way to concrete a high-rise building floor by floor.
Stationary pump vs boom pump
A stationary or trailer pump (called a ground pump on many sites) pushes concrete through a fixed pipeline and is the more economical choice for tall buildings with many repetitive floor pours, where a riser and placing boom stay in place as the structure rises. A truck-mounted boom pump carries its own placing arm and is faster to set up for one-off, open or lower pours. Many high-rise projects use a stationary pump like the SP90.18.253D for the structure and a boom pump for podium and ground works.