How do you choose a melt pump manufacturer? For companies producing film, sheet, pipe, or plastic pellets, two questions matter when buying a pump. Can it meet the actual production requirements, and can it be integrated smoothly into the line? Tianjin Ruicheng Pump Industry Co., Ltd. selects pump models and supporting equipment based on the material being processed, the required throughput, and the installation location.
In recycled plastic pelletizing, pressure can change noticeably as the filter screens load up. When selecting a pump, consider the screen changer location, the melt supply at the pump inlet, and the flow resistance through the die together. Ruicheng Pump uses the processing temperature, melt viscosity, target throughput, and inlet and outlet pressures to determine pump displacement, operating speed, and heating method. For filled or corrosive materials, the company also checks whether the materials used for the pump housing, gears, and bushings are suitable for the operating conditions.
Pump requirements vary with the installation location. In extrusion, a melt pump primarily meters the melt flow and boosts its pressure. A reactor bottom pump can be mounted directly to the reactor’s bottom flange to discharge high-viscosity melt. When sizing it, pay particular attention to the reactor pressure and the conditions at the pump inlet. For long transfer lines, a melt booster pump can be selected based on pipeline resistance and the pressure required at the point of delivery.
As a melt pump manufacturer, Ruicheng Pump can also supply screen changers and control systems for temperature, pressure, and pump speed. For a new line, customers can provide the material grade, processing temperature, target throughput, and equipment layout. When replacing an existing pump, the original pump nameplate details, flange dimensions, and operating data help verify the mounting connections and drive coupling and define the scope of supply.
