setting disc
Stationary concrete pump spare parts include concrete delivery assemblies, hydraulic units, and wear components engineered to resist abrasive cement slurry. Operating pressure typically ranges from 80 to 120 bar, with maximum pumping capacity between 40 and 110 cubic meters per hour. Delivery cylinders are manufactured with internal diameters from 180 to 230 millimeters and strokes of 1300 to 2100 millimeters. Concrete pistons use polyurethane rings with high wear resistance and tensile strength above 30 megapascals. Delivery pipes are produced from alloy steel with hardness between 58 and 64 HRC. Wear plates and cutting rings exceed 550 Brinell hardness to extend service life.
The mechanical structure is built on a steel chassis with minimum yield strength of 355 megapascals. The hopper is equipped with an agitator rotating at 20 to 30 revolutions per minute to prevent material settlement. The S valve or rock valve switches concrete flow at 15 to 35 cycles per minute. A hydraulic piston pump rated between 90 and 160 kilowatts delivers 170 to 260 liters per minute. Machining tolerances for bushings and pins are maintained below 0.05 millimeters. Quality control includes static pressure testing, leakage inspection, and non destructive evaluation of load bearing components.
