Melt Pump
- Polymer extrusion melt gear pump
- melt pump for plastic extrusion
- Polymer Reaction Kettle pump
- gear pump rubber extruder
- melt pumps for extrusion
- Melt Gear Pumps for BOPP Films
- ZB-G bearing external melt pump
- melt pump for pvc extrusion
- ZB double shaft drive melt pump
- Explanation of terms for melt pump d
- ZB-X Series chemical gear melt pump
- PID Control System for extrusion
- PLC Control System for extruder
- ZB-U series melt extrusion spinning
- ZB-E series transfer melt pump for e
- ZB-H series high temperature and hig
- ZB-R series gear melt pump for rubbe
- ZB-K series chemical stainless steel
- ZB-D series pipeline melt pump for p
- ZB-F series melt pump for reaction k
- ZB-B series dosing standard thermopl
- ZB-C series plastic granule machine
Screen Changer
- polymer melt filtration screen changer
- recycled plastic screen changer
- slide plate screen changer
- pillar screen changer
- dual bolt screen changer
- continuous screen changer
- screen changer polymer filter
- Plastic extruder filter extrusion sc
- Biodegradable plastic PBAT/PLA hydra
- Single plate hydraulic screen change
- plastic extrusion screen changer
- single plate hydraulic quick screen
- Manual control screen changer
- Double plate continuous hydraulic sc
- Automatic mesh belt continuous scree
- Double piston four screen cavities c
- Single plate double screen cavities
- Single piston double screen cavities
- Double piston four screen cavities b
- Dual Bolt double screen cavities hyd
Feeding System
- force feeder extruder
- loss in weight feeder for masterbatc
- continuous feeding system
- Liquid loss in weight feeder
- china volumetric screw doser feeder
- Multi-component loss in weight feede
- Micro loss in weight metering feeder
- Single screw gravimetric dosing feed
- Twin screw loss in weight metering f
melt blown progress
contact us
- Batte Machinery Zhengzhou Co., Ltd.
- E-mail: sale@meltpump.com
- whatsapp: +86 158 38331071
- Tel: +86-371-67991755 / 67992755
- FAX:+86-371-67993277
- Address:No.11 Changchun Road, High-tech Zone, Zhengzhou, China.
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When is a melt pump required for underwater pelletizing of plastic?
The primary scenarios where a melt pump is required in an underwater pelletizing system include processing low-viscosity/high-melting-point engineering plastics, achieving high-precision pellet size control, maintaining stable high-pressure extrusion conditions, and enhancing energy efficiency on production lines.
Core Application Scenario Analysis
Processing Special Engineering Plastics.
When processing low-viscosity or high-melt-temperature engineering resins such as PET, nylon, and polycarbonate, a melt pump can stabilize melt pressure and prevent die hole freezing and blockage caused by process fluctuations. These materials are temperature-sensitive, and during underwater pelletizing, the die head comes into direct contact with cooling water. A melt pump ensures a continuous and stable melt flow, preventing solidification within the holes.
High-precision pellet production requirements.
When finished pellet diameter must be controlled within 0.01-0.20 inches (e.g., 0.8mm PP micro-pellets) with strict tolerances, the melt pump precisely meters melt extrusion volume, reducing size variation to within 0.5%, thereby minimizing the formation of oversized pellets or agglomerates.
High-pressure extrusion conditions.
In large underwater pelletizing systems, the melt pump can increase the extruder outlet pressure to 35-50 MPa, effectively addressing the molding resistance of high-filler materials and preventing uneven die head discharge due to insufficient backpressure.
Production efficiency optimization scenarios
Energy saving and consumption reduction: The melt gear pump can reduce energy consumption by approximately 25%, particularly in the direct molding of blended modified materials (such as TPU/rubber block pelletization), where eliminating the pelletization process can shorten the production cycle by 30%.
Equipment protection: By diverting the extruder load, screw wear is reduced, extending the service life of critical components in the underwater pelletizing system (such as die plate heaters and hydraulic cutting systems).
Email: sale@meltpump.com
WhatsApp: +86 158 3833 1071
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