Filter Test Machine

Listing ID #1404282

We are specialized in manufacturing, exporting and supplying Filter Test Machine of world class quality. For quite a period screen life tests for rating the quality and dispersibility tests of colorants in polymer melts have been performed. But the comparison of those test were poor. Now, the draft of the new standard EN 13900-5 describes a procedure which increases the comparability of those tests. On one hand this standard describes which kind of extruder, melt pump, sieves and breaker plate have to be used and on the other hand the composition of mixture, the test routine and the evaluation is described. One parameter, the filter pressure value 'FPV' describes the quality and dispersion of the pigments. Due to standardized quality control an improvement of the products is possible. Also the ranking of the same products from different vendors by comparing the FPV results is now easier. The use of the FPV test to check raw materials ensures the quality of your products and the up time of screen changers is more predictable.

Application & Operations
The procedure is suitable for testing colorants in the form of color concentrates in all polymers used for extrusion in melt-spinning processes. The test mixture is processed in a single screw extruder with a non-grooved barrel and a compression screw with now additional mixing elements. The polymers melt is fed with a constant pressure of 30 to 60 bar (435 to 870 PSI) to the melt pump with a volume discharge of 3 cc / revolution. Particles and agglomerates over a certain size are retained and clog the filter package. A pressure increase is observed and is correlated with the quality of the colorant. The pressure difference between the initial pressure and the peak pressure is used for the calculation of FPV filter pressure value.
Computerized Control Of Filter Pressure Testing Machine
With the Filter Test Machine the recording and controls are made with an on-board Panel PC with screen. The control panel is also equipped with an in house made electronic circuit which registers and controls signals form pressure transducers and thermocouples. The test parameters can be keyed in on a very practical key board with large scroll Mouse on a pull out drawer. This feature is a lot easier to use, since the running parameters and batch data can be keyed in on the key board in the same way as with a normal PC. The PC can store nos. of test results, which can be obtained in printable media by connecting a printer.
Result And Evaluation : The filter pressure value (FPV) is defined as the increase of pressure per gram colorant and calculated using by the following equation :

• FPV = (P max-Ps)/mc = [bar/g]

Where, FPV-Filter pressure value (bar/g), PS-Start Pressure in bar, P max – Maximum Press-sure in bar, MC-Quantity of colorant in gram.
It is recommended to record the result accurately to one decimal place.
Highlights

• Design as per European Standard EN 13900-5 to get very repeatable & dependable FPV value of master batech & colorants
• Fully computerized & SCADA operated automatic system havi no control panel on machine
• System with necessary safety interlocks to prevent mishap
• Separate pre-heating zone for breaker plate
• Automation developed & provided by Siemens exclusively for with distanta software system suppon through Internet
• Attentive aftersales support
• Close Temperature Control by Unique Control Devis
• Special long life Heat-Cool Ceramic heates wigh copper fins for sharp control of Temperature

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