Masterbatch Filter Test Machine Manufacturer
Filter Pressure Value (FPV) Test Machine is a device used to test the dispersion properties of polymers such as pigments and masterbatches. It is mainly composed of a single screw plasticizing unit, a melt pump, a filter screen, pressure sensors, a measurement and control unit, a display device, etc. During the test, the melt pressure before the filter screen when the pure material is extruded is first tested, and then the compound sample prepared in a specified proportion is put in for measurement. The measurement and control software records the change curve of the melt pressure before the filter screen, and analyzes and calculates the ratio of the pressure increase value to the colorant mass, that is, the FPV value. When the mixed material in a molten state passes through the filter screen of the barrel, the granular material will be gradually retained, and then the filter screen will be blocked, and an obvious pressure peak will appear. This pressure value can be used as an ideal indicator to describe the dispersion effect of the masterbatch. If the masterbatch has poor dispersion, there will be agglomerated particles during the processing process, which will cause the filter screen to be blocked when flowing through the filter screen, resulting in an increase in the melt pressure before the filter screen. The FPV value can characterize the dispersion effect of the masterbatch. The smaller the FPV value, the better the dispersion. FPV testing instruments are widely used in polymers such as PP, PE, and PET, especially in masterbatch production and quality control. Through FPV testing, the dispersion performance of the masterbatch can be evaluated to guide the optimization and improvement of the production process.
Compliant Standard
EN13900-5:2005
Working Principle
The test raw materials are first melted and homogenized by a single-screw extruder, and then transported to the die head equipped with a filter screen by a melt pump. The instrument measures and records the melt pressure change curve before the filter screen in real time through sensors and measurement systems, and automatically analyzes and calculates the filter pressure value to determine the dispersion performance of masterbatch or other filling materials.
Quick-Discharge Hopper
- The hopper is made of 304 stainless steel, has a capacity of 10L, and is aesthetically pleasing and durable.
- The conical bottom of the hopper features a horizontally movable quick-discharge plate for rapid material discharge.
- The conical surface is equipped with a transparent observation window to help the operator monitor the amount of remaining material.
Hopper
Siemens Variable Frequency Speed Control Motor
- The machine comes standard with a Siemens variable frequency motor as its power source.
- This motor uses variable frequency speed control to ensure precise speed adjustment.
- The motor is supported by a Siemens PLC, guaranteeing accurate speed control.
Motor
Precision Single Screw and Barrel
- The material of the barrel and screw is 38CrMoAlA high-quality nitrided steel. The surface has been nitrided and the maximum depth reaches 0.7mm.
- The screw speed is adjusted through frequency conversion speed regulation, and the speed regulation range is from 0 to 95RPM.
- The barrel is composed of multiple sections, each section is 120mm long.
Barrel protective cover
Processing Area with Heating and Cooling Functions
- The machine’s barrel is equipped with electrically heated cast aluminum heaters for 2 zones: 3 zones in the barrel area, and one zone each before and after the melt metering pump.
- Barrel cooling includes two methods: one zone uses water cooling, and the other zones use multi-blade fans to ensure normal machine operation.
Forced air cooling
User-friendly Human-Machine Interaction Interface
- The hopper is made of 304 stainless steel, has a capacity of 10L, and is aesthetically pleasing and durable.
- The conical bottom of the hopper features a horizontally movable quick-discharge plate for rapid material discharge.
- The conical surface is equipped with a transparent observation window to help the operator monitor the amount of remaining material.
Monitor
Precision Melt Metering Pump
- To provide a stable, pulsation-free melt flow and ensure the accuracy and repeatability of test results, we use a melt metering pump from a well-known Taiwanese brand, driven by a TECO servo motor.
- The melt pump precisely delivers 3cc of melt per revolution, guaranteeing test accuracy. Its speed is adjustable, and the pump operates from room temperature to 300 degrees Celsius.
Melt pump motor
Pressure Sensors from a World-Renowned Brand
- The accuracy and reliability of the pressure sensor directly determine the accuracy of the test values. Therefore, we have equipped the machine with pressure sensors from Dynisco, USA, which support melt pressure measurement from 0 to 35 MPa.
- Two sets of pressure sensors are configured: one set is installed before the melt pump to monitor the melt supply pressure and ensure a constant flow rate; the other set is installed after the melt pump to collect the pressure before the filter in real time for FPV calculation.
Pressure sensors
Test Filters of Various Mesh Sizes Available
- All filters we provide for our machines comply with EN13900-5:2005 standards.
- Multiple sizes are available, ranging from 400 to 2400 mesh.
- As consumables, users can purchase additional filters from us at any time if needed during subsequent use.
Filter meshes
Main Technical Parameters
| Model | AT-P6150 |
| Screw&barrel material | 38CrMoAl chromium-molybdenum alloy special tool steel |
| Control system | PLC |
| Screw diameter | 20/25/30mm or specified |
| Screw L/D | 25/28/33:1 or specified |
| Screw speed | 0~95 rpm frequency control |
| Pressure transducer measuring range | 0~35MPa |
| Filter | 5-40 micron pore size |
| Dimensions | 1250 mm (W) × 550 mm (D) × 1350 mm (H) |
| Power supply | 3∮，AC380V，50Hz |
Filter Pressure Value (FPV) Test Machine Features
- Meets ASTM and EN 13900-5 testing standards.
- Made of 38CrMoAl chromium-molybdenum alloy special tool steel, with surface tempered, nitrided, chromium plated, polished and ultra-finely diffracted.
- Equipped with precision gear motor.
- Equipped with high precision material temperature sensor to monitor the melt temperature change.
- Screw speed is adjustable.
- Equipped with PID/LED/RKC intelligent digital display temperature controller, using high-precision digital instrumentation to display all the extrusion parameters, including temperature control, drive, pressure, interlocking functions.
- Equipped with a quality melt pump for high-precision delivery of the melt.
- High-precision measurement of melt volume flow rate can be realized.
- Equipped with high-precision sensors to realize accurate measurement of melt pressure before and after pumping.
- Special data acquisition and display system automatically analyzes and calculates the filtration value.
- Equipped with liquid crystal display to input and display the operation status and parameters.
- Automatic output of test results with intuitive interface and accurate data.
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