These Rock Valve™ Trailer Mounted Pumps are ideal for handling the majority of concrete pumping projects including those requiring 1-1/2” aggregate or harsh mixes that need more horsepower to maintain distance and volume. These all-hydraulic pumps feature the exclusive Schwing Rock Valve™, which offers reliable operation with the lowest maintenance cost. The versatility of these models means the line pump can be used for concrete pumping, shotcreting and pressure grouting.
These are the high pressure workhorse pumps that have topped out more high rise buildings than any others. The technology of our twin-cylinder, all-hydraulic open loop system concrete pump has been refined for decades along with the proven Rock Valve™ that is so important to reliability and cost of operation. The Rock Valve’s design creates positive pressure within the valve which is ideal for high pressure pumping applications. As pressure from the concrete acts on the pressure spring, a tighter seal is created between the carbide cutting ring and the wear plate.