The motor (Diesel or Electric) drives the axial piston pump via a flexible coupling. Due to automatic output adjustment optimum utilization of the motor power, resulting in low energy consumption at differing pumping condition. Additionally the concrete flow can be manually adjusted. The pump operates in a proven open circuit.
The maximum placing output and the pressure are determined by the construction sites. Between these two values automatic adjustment by the governor occurs maintaining a constant output depending on the power available from the installed drive motor.
The portable concrete pumps are assembled in the unit construction system. The main assembly groups are: Frame, Power unit, Concrete pump kit, Control block, Hydraulic tank and Hopper with agitator.
The Frame & Axle
The frame, in compact execution, is constructed from standard vehicle profiles. The pump is mounted on heavy duty single axle chassis with draw bar, pneumatic tyres and for travelling on construction sites at up to 25 km/hr.
The fully hydraulic control system is integrated within the drive. The compact control block and minimal hydraulic lines makes the equipment reliable and durable. The differential cylinder has trouble free piston rings and automatic constant stroke maintenance. Both gate valves change independently so that even when full change over is prevented by foreign material or similar obstructions in the concrete, the pump continues to operate without problems. All components are especially developed and manufactured to withstand the rough treatment on construction sites.
Ideal flow conditions in the control housing resulting in superior placing proper ties also incase of concrete low on sand and fines, stiff consistence or crushed aggregates. Simple tilting of the output pipes enables easy control and cleaning of the concrete conveying path and the gate valve parts.
Pumpable concrete, within any consistency range down to a water cement ratio of 0.4. Even concrete with aggregate grading up to 40mm can be conveyed trouble free with the concrete pump through a 125mm diameter pipe line.
Flat gate valve
The two flat gate valves working independently have been especially developed for pumping concrete. Their working system with automatic adjustment permits trouble free pumping even with badly worn parts.
Integrated Control Block
The hydraulic control system is integrated with in the drive. The compact control block & minimal hydraulic lines makes the equipment reliable & durable.