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2025-12-02 Polymer melt booster pump
Melt booster pumps , as critical equipment in the plastics processing industry, are specifically designed for high-temperature, high-viscosity polymer melts. Their core advantage lies in achieving precise pressure control and stable flow delivery, making them widely used in the production of pipes, profiles, sheets, and films, as well as in plastic pelletizing processes. In pipe extrusion, they ensure precise pressure and flow control for PVC black pipes, maintaining uniform wall thicknessparticularly suited for large-diameter PE pipe production to enhance product quality. During profile extru
2025-12-01 Hot Melt Adhesive Gear Pump
Hot melt adhesive pumps are primarily used for conveying, pressurizing, and metering high-temperature, high-viscosity polymer melts. Their main function is to pressurize and stabilize high-temperature melts, ensuring precise and consistent melt flow into various pipelines. A complete hot melt adhesive delivery pump system primarily consists of a variable frequency motor, safety coupling, gear reducer, universal joint coupling, gear pump body, and reducer lubrication system. The gear pump body for hot melt adhesive transfer comprises upper and lower gear rotors, sliding bearings, sealing sleeve
2025-11-08 Custom melt pumps
Custom melt pumps are individually designed and manufactured to meet specific user requirements and operating conditions, finding extensive application across multiple industries including plastics, rubber, and chemical fibers. Key customization aspects include material selection, structural design, sealing methods, and heating systems. Material Customization: Select appropriate pump body, gear, and bearing materials based on conveyed material properties such as corrosion resistance and wear resistance. For corrosive materials, stainless steel or corrosion-resistant alloys are recommended. For
2025-11-01 Melt Pump Specifications and Models
Melt pumps , as critical equipment in the plastics processing industry, come in diverse models with a wide range of displacement capacities to meet varying production demands. Specifically, common melt pump models include: 0.05 cc, 0.08 cc, 0.1 cc, 0.2 cc, 0.5 cc, 12 cc, 50 cc, 20 cc, 30 cc, 1.5 cc, 50 cc, 100 cc, 150 cc, 250 cc, 315cc, 500cc, 800cc, 1000cc, 1200cc, 2500cc, 4000cc, 6000cc, 8100cc, 20000cc, 25000cc, and 30000 cc. Custom non-standard designs are also available to ensure seamless integration with specific production processes. The melt pump employs screw seals, packing seals, or
2025-10-30 Material Selection for Melt Pump Gears
The selection of melt pump gear material hinges on the application scenario and required performance. A variety of materials are available for melt pump gears. First, nitrided steel offers excellent wear resistance, making it suitable for high-pressure and high-wear applications. Tool steel provides both high hardness and wear resistance, ideal for high-strength gears. Stainless steel exhibits strong corrosion resistance, suitable for corrosive media. Corrosion-resistant alloys like Hastelloy are appropriate for extreme corrosion environments. Special alloys such as titanium alloys are well-su
2025-10-28 Core Function and Application Advantages of Hot Melt Adhesive Melt Pumps
Hot melt adhesive melt pumps serve as the core equipment for conveying and metering hot melt adhesives. They are primarily used to reliably transport high-temperature molten adhesive from melting tanks or extruders to end processes such as coating and laminating. Key Advantages of Hot Melt Adhesive Pumps Precise Flow Rate: As a positive displacement pump, output flow is linearly correlated with rotational speed. Metering accuracy is maintained within 1%, preventing uneven application or waste. Stable Pressure: Effectively suppresses pressure fluctuations during adhesive transfer, ensuring cons
2025-10-24 Precautions for Starting the Melt Pump
1. Tighten all screws after heating the melt pump. Operating at high temperatures causes slight deformation of the pump body and connecting components due to thermal expansion and contraction. If screws are not fully tightened, gaps may form at connections, leading to melt leakage. 2. Do not run the melt pump dry during trial operation. Only start the pump at low speed once the host machine has initiated low-speed operation and material has reached the pump inlet. Dry running causes internal components like gears and bearings to rub against each other without lubrication, accelerating wear. 3.
2025-10-16 Melt Pump Spiral Seal
The principle of the melt pump spiral seal is to prevent leakage of the conveyed medium outside the shaft by utilizing the counterforce generated from the multi-start spiral grooves formed within the inner bore of the seal sleeve as the gear shaft rotates. Melt Pump Screw + Packing Seal 1. Dynamic Sealing Function. The spiral seal operates as a dynamic sealing mechanism, relying on the continuous rotation of the gear shaft to maintain sealing effectiveness. As the gear shaft rotates, the multi-start spiral grooves within the seal sleeve guide the conveyed medium along a specific flow path, the
2025-10-10 Chemical Resin Melt Gear Pump - Chemical Reactor Discharge Pump
In chemical resin production, melt gear pumps (serving as reactor discharge pumps) have become core equipment due to their advantages in stable delivery, precise metering, high-temperature and high-pressure resistance, adaptability to high viscosity, compact structure, and low maintenance costs. Key Features Stable Delivery: Through precise gear meshing and rotation, melt gear pumps deliver melt stably and efficiently, unaffected by pressure, temperature, or viscosity fluctuations. Precise Metering: Since each gear tooth cavity carries a fixed melt volume, these pumps also enable accurate flow
2025-09-28 Core Components of the Mesh Belt Automatic Screen Changer
Mesh Belt with Contrasting Patterns As the core filtration element, it is crafted from specialized materials that combine high strength with temperature resistance. Its fine mesh removes impurities from the melt. Filter Screen Housing Secures and protects the mesh belt, preventing melt leakage while facilitating maintenance and replacement. Inlet Cooling Section Reduces melt temperature via cooling pipes, preventing viscosity changes or equipment damage caused by high heat. Main Flow Channel Connection Section Links the inlet cooling section, filter screen housing, and outlet cooling section t
