RB Series Melt External Gear Pump

RB extruder with melt pump - your ultimate solution for plastic extrusion industry

The RB series extruder with melt pump is designed to connect with extruders or mixers to deliver high viscous materials at high temperatures.

With a gear pump, it is capable of pressurizing the material flow precisely to guarantee stable material flow to the extruder head, ensuring consistent extrudate dimension, smooth surface finish, and improved throughput rates.

Why Choose RB Extruder with Melt Pump?

1. Increased Output Capacity

The use of a melt pump in the extrusion process ensures a constant flow of material, eliminating surging that could lead to fluctuations in output rates. By reducing pulsations and pressure oscillations, the extrusion output can be maximized, and overall efficiency improved.

2. Faster Start-up and Shutdown Times

The melt pump in the RB series extruder ensures that the line is up and running quickly, preventing costly downtime. The melt pump also allows for faster shutdown, reducing the amount of wastage and improving overall efficiency.

3. The RB series extruder with melt pump is undoubtedly an integral component for plastic extrusion manufacturers. With its ability to produce high-quality products consistently, improve throughput, control of surface finish, and improve efficiency, the benefits speak for themselves.

Application Industries:
1. Plastic Processing: Pipes, sheets, films (BOPP/BOPET), profiles, granulation, co-extrusion.
2. Chemical Fiber Spinning: PET/PA/PP spinning, FDY/POY production lines, reducing breakage rate by over 90%.
3. Rubber and Elastomers: Tires, seals, elastomer extrusion, improving mixing uniformity.
4. Others: Hot melt adhesives, inks, medical plastic catheters, and other precision metering and conveying applications

Selection：
1. Determine the displacement: Calculate the displacement per revolution (cc/R) based on the flow rate requirement: Displacement (cc/R) = Flow rate (L/min) × 1000 ÷ Rotational speed (r/min).
2. Verify operating conditions: Pressure ≤ 35 MPa, temperature ≤ 350℃, viscosity ≤ 40,000 Pa·s. Select the material based on the corrosiveness of the medium.
3. Select the gear tooth profile: Straight teeth are suitable for general extrusion, while helical teeth are preferred for precision film/fiber spinning to reduce pulsation.

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