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Gear pump for rubber applications

Gear pump for rubber applications
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GEAR PUMPS Rubber Application high precision gear pump for metering and pressure generation tasks

Made For Rubber Applications Gear pumps provide a reliable means to increase capacity of existing lines, improve the dimensional stability of extruded profiles, efficiently build high pressure required for strainer applications and provide an excellent return on investment. The benefits of gear pump assisted extrusion are well known for thermoplastic applications and many of the same benefits can be realized for rubber. The key to a successful rubber pump installation is the correct pump design and pump size selection. Witte’s ability to provide proven solutions for the rubber industry and...

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Special Gear Design Helical Gear Design • standard for rubber pumps • reduced pulsation (compared to spur gears) • self wiping design Spur Gear Design • standard for high pressure gear pumps • best volumetric efficiency • no axial thrust Herringbone Gear Design • lowest pulsation • no axial thrust • optimized temperature profile across rubber flow Example: comparison of pulsation Spur gears Helical gears Herringbone gears: comparison of pulsation Herringbone gears

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Advantages Advantages of Gear Pump Assisted Rubber Extrusion Reduced pressure on the rubber extruder allows the rubber extruder to operate more efficiently and at higher throughput Ability to control extruder head pressure as an independent process parameter with control system Able to handle higher discharge pressure with less temperature rise for straining and high pressure applications Accurate metering of rubber compound to downstream equipment giving improved control on the final product Handle operating conditions which have not been possible previously Increase productivity of...

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Designed for Rubber Pump Cross Section Pressure monitoring for inlet and discharge sides Temperature measurement of housing Shaft Cooling System Drive Shaft Cooled shafts to avoid excessive heat Driven Shaft Viscoseal depending on the sensitivity of the rubber the pump can be designed so that product from the bearings can be recirculated back to the pump inlet or can be bled out to atmosphere Temperature measurement of endplates Example Rubber Application Die Head Screen changer or breaker plate Gear pump for pulsation free rubber transfer Special inlet port design for constant material...

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