Basic Info.
After-sales Service
on Site
Product Type
Granulating Extruder
Assembly Structure
Integral Type Extruder
Engagement System
Full Intermeshing
Transport Package
Wooden Case
Product Description
Melt Pump
Product Description
High precision gear pumps for boosting and metering to maintain a constant high quality finished product.
Melt pumps (extrusion pumps, metering pumps or gear pumps) are installed in all applications in extrusion and compounding of plastics. Melt pumps are used to build up constant pressure and ensure constant output. The extruder screw is relieved, this enables a higher output power and increases the flexibility in different applications. Smooth, efficient and constant pumping of plastic melt through extrusion-die guarantees constant product quality and dimension.
And its main purpose is to precisely control output to the die.
Melt pumps build pressure more effectively than a screw and provide more consistent pressure and volume of output than a screw. The extruder fills the gears from the suction side and the rotating gears discharge the polymer on the other side.
Melt pumps consist of two gears, usually driven by a single motor. The extruder fills the gears from the suction side , and the rotating gears discharge the polymer on the other side. The principle is that a well-made gear will have a very accurate profile, and when that gear is enclosed in a tight-fitting housing, the volume of plastic in each tooth will be very precise. As the gears turn they meter an exact amount of plastic on the discharge side. The speed of the gear rotation is closely controlled by an AC or DC drive designed for less than 1% variation.
The gear pump is a precise method to ensure constant polymer melt flow, which contributes to the highest quality output. Used in pumping, gauging and pressurizing all high/low viscosity plastic melt
Function: 1. The pressure is measured before the fluid enters the gear pump
2. Extrusion speed is adjusted by PLC3. Constant melt pressure and stable flow rate maintainedYour benefits • Reduction of stress on the extruder by means of shifting the job of building pressure to the gear pump
• Reducing extruder head pressure may yield increased throughput rate leading to maximized production efficiency• Elimination of output variations and pressure pulsations• Improves product quality• Reduces scrap and product defects• Improvement of the dimensional accuracy in the production of sheets and profiles• Optimizes the surface and optical quality in the production of films, sheets and profiles• Increased product quality in homogeneity and pellet size in compounding applications In principle, all extruder melt pumps have the same design: two externally toothed gear wheels mate with each other when they rotate There are differences when it comes to the gear design itself: helical, spur and herringbone are the most common types. Anji uses the helical type as this design is suitable for most applications and ensures a continuous and smooth process. In addition, the helical gear design features less friction and has better self cleaning characteristics.
There are also special executions of gear pumps for applications where frequent colour changes are required, for example in TPE compounding. Here the gear pump has a so-called "bleeding system" for drainage and the specific discharge of melt which is used for the lubrication of the bearings.
Features:• Optimized melt-flow channel according experience in extrusion of plastic melt• Threads for pressure sensor are located in pump-body• Long-life through-hardened tool steel gears and shafts• Flow-optimised product channel Accessories
• Pump
• Heaters
• Drive units
• Control systems
• Sensors
• Support carts/ Base frameOptions
• Defined tolerance classes
• Wired heating cartridge fully attached to connector•
Liquid heating with interconnection bores •
Pressure/temperature sensor bores in body •
Choice of materials for every application •
Cooling feature for shaft seals
• Connection flanges
• Anji Screen Changer Suitable for the production of :• Especial for the high yield device• Sheet (Foam/Strapping/Plastic cardboard)• Coating (Hot melt adhesive)• Pipe ( Corrugated/Gas Pipe) and profile• Compounding (Master batch/filler)• Wire and cable extrusion• Tubing (Medical/Industrial/Irrigation)• Fibers ( Monofilament/non-woven fabrics)• Pelletizing (strands and water-ring pelletizing)• Recycling of most polymers• Blow molding
Product Parameters
Theory: Positive Displacement Gear Pump
Structure: Gear Pump
Power: Electric or Oil
Fuel: No Need
Pressure: High Pressure
Volume Range: 10CC - 2000CC
Viscosity: ≤40000 Pas
Working Temperature: ≤400°C (750°F)
Cleaning Temperature: ≤450°C (850°F)
Outlet Pressure: 40MPa(6000psi)
Differential Pressure: ≤25Mpa
Installation of Melt PumpInstallation Method: Motor+Reducer+Universal Coupling+Melt Pump
Recommended installation method below: Packaging & Shipping
Anji will choose the most reasonable packing material and packing dimensions for our product, all wooden case package is fumigated, and dimensions are designed to be economical to container shipment. For shipping, we usually work on FOB/CFR/CIF. We will supply related report and packing pictures of products before shipment to customers.
Company Profile
About Us
ANJI HENANPLASTIC MACHINERY CO., LTD was established in 1992 based in Zhengzhou, Henan Province, China. For more than 30 years, Anji has been dedicated to the R&D, manufacturing, and industry promotion of polymer melt filtration systems and melt pumps. Today Anji proudly owns a team 80 employers, mostly highly skilled workers with rich experience in the design, manufacturing, and applications of screen changers and melt pumps for polymer extrusion industry.
Our products were exported to Singapore, India, Thailand, Korea, Malaysia, Japan, Philippines, Indonesia, UAE, Iran, South Africa, UK, Germany, Turkey, Spain, Bulgaria, Italy, Slovenia, Argentina, Peru, Colombia, Mexico, USA, Russia, and Australia, etc. Anji Plastic Machinery Manufactory focuses on the research and application of polymer melt filtration technology, from manual operation hydraulical operation to PLC programmable, continuously adopted the state-of-the-art technology, to provide reliable and leak-free processing.
Anji Screen Changers ( Melt Filter) improve the quality of the polymer products by removing contaminants and defective solids in polymer melt. Screen Changer can be fitted to any new or existing extruder, melt pump, reactor or any extrusion line in plastics extrusion processing: the resin granulation process after polymerization, engineering polymer compounding, pelletizing, plastic recycling granulator, blown and cast film extrusion, sheet extrusion, pipe and profile extrusion, spun-bonded and melt-blown nonwovens, etc.
After Sales Service
Commissioning
We provide the operation manual for customers to gudie to install the screen changer, and at the requirement of user, salers should send technician to install and commissioning the die at site of Buyers, expenses of the trip should be borne by Buyers.
After-sales service
12 months with proper operation by user, all the spare parts shall be replaced free of charge under guarantee period, fee for transportation and packing will be borne by users
Certifications
FAQ
How to choose the right melt pump?
When choosing a melt pump for extrusion following criteria must be considered:
• Flow Rate (minimum, maximum, normal)
• Inlet and Discharge Pressures (minimum, maximum, normal)
• Application (e.g. Compounding, Sheet/Film extrusion, Rubber extrusion etc.)
• Type of Polymer & Viscosity (e.g. PP, PET, HDPE etc.)
• Temperature (minimum, maximum, normal)
• Filler Content (percentage and kind of filler/solids) How melt pumps are lubricated?
Basically all gear pumps used in the extrusion process are lubricated by the polymer. Therefore they are called "melt pumps".
What are the benifits of melt pump on extruder?
1.To improve the stability of the product size
2. Melting quality control
3. Increase output
4. Reduce the raw materil consumption
5. Improve the flexible of the extruder
6. Protect the extrusion die ,extend the service life of the extruder
What are the benifits of installation the screen changer and melt gear pump together?
1. Improve the melt plasticaction
2. Improve the quality of the products
3. Extend the service life of the extruder
4. Greatly increase the output of the products
5. Reduce the labor interference
6. Reduce the unqualified products
What do we need to pay attention when using the screen changer nad melt pump?
1. We should operate the screen changer and melt gear pump as the safety manual, prevent an electrical shock
2. To prevent ourself scald
3.Do not disassemble the screen changer and the melt gear pump, any questions, please contact with the supplier
Address:
No.62 Huayuan North Road, Jinshui District, Zhengzhou, Henan, China
Business Type:
Manufacturer/Factory
Business Range:
Chemicals, Health & Medicine, Manufacturing & Processing Machinery, Packaging & Printing
Management System Certification:
ISO 9001
Company Introduction:
ANJI HENANPLASTIC MACHINERY Co., Ltd was established in 1992 based in Jiaozuo, Henan Province, China. For more than 30 years, Anji has been dedicated to the R&D, manufacturing, and industry promotion of polymer melt filtration systems and melt pumps. Today Anji proudly owns a team 80 employers, mostly highly skilled workers with rich experience in the design, manufacturing, and applications of screen changers and melt pumps for polymer extrusion industry.
Our products were exported to Singapore, India, Thailand, Korea, Malaysia, Japan, Philippines, Indonesia, UAE, Iran, South Africa, UK, Germany, Turkey, Spain, Bulgaria, Italy, Slovenia, Argentina, Peru, Colombia, Mexico, USA, Russia, and Australia, etc.
Anji Plastic Machinery Manufactory focuses on the research and application of polymer melt filtration technology, from manual operation hydraulical operation to PLC programmable, continuously adopted the state-of-the-art technology, to provide reliable and leak-free processing.
Anji Screen Changers ( Melt Filter) improve the quality of the polymer products by removing contaminants and defective solids in polymer melt. Screen Changer can be fitted to any new or existing extruder, melt pump, reactor or any extrusion line in plastics extrusion processing: The resin granulation process after polymerization, engineering polymer compounding, pelletizing, plastic recycling granulator, blown and cast film extrusion, sheet extrusion, pipe and profile extrusion, spun-bonded and melt-blown nonwovens, etc.
