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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Melt Gear Pumps in PMMA Production
As the core equipment for precisely controlling melt delivery, melt pumps have become an indispensable component in PMMA production. Their role is particularly irreplaceable in the production of high-end products such as optical-grade PMMA and automotive-grade PMMA, directly determining whether a company can overcome the bottlenecks associated with high-end production.
The core function of melt pumps in PMMA production is based on the principle of positive displacement, combined with the rheological characteristics of PMMA melt, to achieve the threefold objectives of “stable pressure, precise metering, and degradation prevention.”
Essentially, a melt pump is a positive displacement conveying device, consisting primarily of a pair of precision-meshed gears, a pump body, and a sealing structure, and falls under the category of positive displacement conveying equipment. During operation, the rotating gears form a sealed volumetric chamber that draws the PMMA melt from the extruder through the inlet. Through the squeezing action of the meshing gears, the melt is forcibly conveyed to the outlet, achieving metered and continuous delivery—with a constant discharge volume per gear revolution. The output flow rate is linearly proportional to the rotational speed and is unaffected by downstream mold resistance or changes in melt viscosity, perfectly meeting the core requirements of PMMA production for high viscosity and stable conveying.
The rotation of a traditional extruder screw generates periodic pressure fluctuations, whereas PMMA melt has an extremely low tolerance for such fluctuations (allowed fluctuation ≤ ±1%) . The gear meshing structure of the melt pump acts as a “pressure barrier,” effectively isolating pressure fluctuations from the extruder. Simultaneously, through its own pressurization function, it provides constant pressure to the die (typical operating pressure for PMMA production is 10–30 MPa), controlling outlet pressure fluctuations within ±0.5%. This eliminates product dimensional deviations and surface defects caused by pressure fluctuations at the source.
Email: sale@meltpump.com
WhatsApp: +86 158 3833 1071
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