Determining Melt Mass Flow Rate with the Mflow Extrusion Plastometer

The standard version of the Mflow extrusion plastometers can be used to establish the melt mass flow rate (MFR). The plastometer comprises modular design; using the piston transducer expands the Mflow's capabilities to include determination of melt volume flow rate (MVR) as well as automatic adaptive parameter configuration. Common uses are in goods inwards checks and quality assurance.

Key Advantages and Features

  • Automatic, field-dependent parameterization reduces measurement errors and enhances test parameters
  • The pneumatic weight-lifting unit with pegging allows users to alter the test weights rapidly and easily. The test piston is also held in any required pre-heating position.
  • A piston displacement transducer is available for establishing the MVR

Mflow Extrusion Plastometer with Weight Selector

The Mflow weight-selector option integrates the benefits of pneumatic weight-lifting with the convenience of simple, reliable, and safe changing of test weights, guaranteeing secure weight-storage and an operator-friendly test sequence.

Mflow Extrusion Plastometer in all Models

The modular Mflow extrusion plastometer is used to define the volume flow rate (MVR) and melt flow rate (MFR).

Technical Overview

The standard version of the Mflow extrusion plastometer is engineered to perform MFR tests in compliance with Method A and can be expanded for MVR tests as per Method B. Tests to the following standards are possible: Methods A and B as per ISO 1133, ASTM D3364, ASTM D1238, and JIS K 7210.

Description Value  
Type Mflow extrusion plastometer
Item no. 086973
Test load 0.325 to 21.6 kg
Compressed air, oiled, dry (option for pneumatic weight lifting) 6 to 10 bar
Height 510 mm
Width 360 mm
Depth 395 mm
Approx. weight 43 kg
Test temperature +50 to +450 °C
Display LCD graphic display, backlit
Resolution of the temperature display < 0.1 K
Keypad Pressure point soft touch keypad
Number of savable parameter sets 35
  • USB port to connect to a PC
  • RS-232 port for raw data export, data output: Serial number, specimen number, number of extrudates, density (user specifications) density at test temperature, overall weight of the extrudates, MFR average value, MVR average value, MFR and MVR individual values
  • RS-232 port for connecting the analytical scale (from the Zwick product range)
Temperature accuracy in the range of 0 to 75 mm above the die in the temperature range of 50 °C to 450 °C < 0.3[1] K
Time measurement:
Error limit (Method A) ±0.02 (with automated extrudate cutter) s
Error limit (Method B) ±0.01 s
Travel measurement:
Resolution < 0.005 mm
Error limit (Method B) ±0.02 mm (ISO 1133) / ±0.4% of 6.25 mm (ASTM D1238)
Multi-instrument operation on one PC
Available main memory, min. 1.54 GB
Clock frequency 3 GHz
Connectible Mflow extrusion plastometer per PC 6
Included in the scope of delivery:
  • USB cable
  • Test weight for the load stages 325 g and 2.16 kg
  • Filler funnel
  • Cleaning accessories (cleaning rod, cleaning brush, cleaning pads (500 pieces), die cleaning brush Ø 2.095 mm) for the extrusion barrel and die
  • Test granulate and filling chute for granulate
Power input specifications
Power supply 220 to 240 V, 1L/PE/N
Power consumption (full load), approx. 0.6 kVA
Power frequency 50/60 Hz

1 Spatial and temporal, to ISO 1133-2

Suitable Accessories

  • Test weights
  • Extrusion barrels
  • Extrudate cutter

Other Equipment by this Supplier

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