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2026-11-06 Why can the melt gear pump efficiently handle high viscosity melt transportation?
The melt gear pump is naturally suitable for high viscosity working conditions, and its core lies in its positive displacement working principle. The enclosed volume cavity formed by gear meshing ensures a constant displacement per revolution, unaffected by changes in medium viscosity. Even if the viscosity increases from 1000 Pa s to 10000 Pa s, as long as the speed is stable, the flow rate will still be accurately output. High viscosity actually helps to reduce melt reflux between gear clearances, improve volumetric efficiency and operational stability. At the same time, it can effectively i
2026-11-05 High Precision Thin Film Extrusion Melt Pump, EVA Blow Film Sheet Pipe Pelletizing Metering Pump
High precision thin film extrusion melt pump, also known as polymer melt metering gear pump, is a core auxiliary component specially matched for plastic extruder lines. Widely applied for EVA blow film, cast sheet, plastic pipe and plastic pelletizing production, this melt gear pump delivers stable volumetric feeding, pressure boosting and pulsation-free melt transfer for thermoplastic polymer extrusion systems. Different from ordinary melt pumps, this extrusion metering pump is optimized for thin-gauge film production, where even tiny flow fluctuation will directly cause uneven film thickness
2026-11-03 Why can the melt gear pump efficiently handle high viscosity melt transportation?
The melt gear pump is naturally suitable for high viscosity working conditions, and its core lies in its positive displacement working principle. The enclosed volume cavity formed by gear meshing ensures a constant displacement per revolution, unaffected by changes in medium viscosity. Even if the viscosity increases from 1000 Pa s to 10000 Pa s, as long as the speed is stable, the flow rate will still be accurately output. High viscosity actually helps to reduce melt reflux between gear clearances, improve volumetric efficiency and operational stability. At the same time, it can effectively i
2026-10-31 The application value of melt pump in PP, PET, PVC sheet extrusion
In the extrusion production of PP, PE, PET, PVC, and ABS plastic sheets, many enterprises have long faced common process bottlenecks: the extrusion screw conveyor comes with pulse pulsation, causing continuous fluctuations in die pressure, exceeding the longitudinal and transverse thickness tolerances of the sheet, frequent occurrence of defects such as thick and thin edges, ripples, and warping, and a large amount of raw materials becoming corner waste, making it difficult to release production line capacity. Ordinary extruders rely on screws to build their own conveying pressure, making it d
2026-10-27 How to scientifically select a melt pump?
In the process of polymer extrusion production, many enterprises encounter problems such as melt pressure fluctuations, unstable product size, increased thickness deviation, and high energy consumption. Many people first think of the insufficient performance of the extruder, but in reality, the problem often lies in the mismatch between the melt pump and process parameters. As an important device connecting the extruder and the die, the melt pump not only undertakes the important tasks of stable conveying, precise measurement, and continuous pressurization, but also directly affects the stabil
2026-10-26 PET Strap Extrusion Melt Pump – Gear Metering Pump for PET Strapping Band Production
The PET strap extrusion melt pump is a positive displacement gear metering device specially designed for polyester strapping band extrusion systems. Installed between the extruder and forming die, it is an essential auxiliary unit to stabilize melt delivery and improve finished strap quality for both virgin and recycled PET production lines. Unlike relying only on the extruder screw to push molten PET, the PET strap extrusion melt pump takes over the precise metering task. The extruder mainly undertakes plasticizing and feeding, while the gear pump provides fixed volumetric output. This separa
2026-10-23 Laboratory Melt Pump: Applications and Performance Advantages
A laboratory melt pump is a compact, precision positive-displacement transfer unit engineered for polymer research and small-scale extrusion trials. It is widely matched with mini extruders, rheology testing platforms and pilot sampling systems, serving polymer formulation development, modified sample preparation and melt rheology characterization. It supports a broad range of polymer melts including PP, PE, PLA, elastomers and composite materials. Built on the volumetric metering principle of precision meshing gears, this lab melt pump delivers steady melt flow and stable pressure during test
2026-10-21 Melt Pump: Not a Universal Solution, Yet It Solves Critical Extrusion Challenges
A melt pump cannot fix every problem on your extrusion line, but it addresses many core stability issues that directly affect product quality and production efficiency. 1. Key Problems It Solves It effectively tackles common extrusion pain points: excessive pressure fluctuation, unstable melt flow, inconsistent product dimensions, heavy load on the main extruder, and unstable downstream forming. By isolating the extruder from die pressure changes, it delivers steady and predictable melt delivery. 2. Scenarios Where It Brings the Highest Value The melt pump offers the most obvious benefits for
2026-10-19 Hot Melt Adhesive Extruder Melt Pump
The hot melt adhesive extruder melt pump is a precision positive-displacement metering device specially designed for hot melt adhesive extrusion production lines. Mounted at the outlet of the extruder, it works together with the plasticizing unit to deliver stable, constant-volume melt flow for hot melt adhesive production, solving common issues like pressure fluctuation, uneven output and inconsistent coating weight caused by direct extrusion from the extruder screw. Constructed with high-temperature alloy gears, heat-resistant pump body and independent heating control channels, this melt gea
2026-10-14 The role of melt gear pump in foam mesh production
The melt gear pump is the core precision matching equipment of the plastic foam mesh production line, specially adapted to the low magnification and high uniformity foaming conditions of PE, PP and other foam mesh raw materials. It is installed between the extruder and the foaming die, and through the principle of volumetric forced conveying, completely solves the pain points of uneven foam holes, large deviation in mesh thickness, and frequent wire breakage in traditional foam mesh extrusion process. It is a key configuration to improve the yield and quality of foam mesh products. Stabilize v
