MELT INDEXER (TWELVINDEX) - Garello & De Giosa snc

Melt fl ow systems are used to test the fl ow characteristics
of various polymers.
This melt-fl ow index is an automatic model to determine
the fl uidity index of thermoplastic materials
exposed to heat.
MELT INDEXER
(TWELVINDEX)
This test method covers measurement of the rate of
extrusion of molten resins through a die of a specifi ed
length and diameter under prescribed conditions of
temperature, load and piston position in the barrel as
the timed mea-surement is being made.
Based on this analysis, it is possible to calculate the
breaking stretching ratio, which improves controls on
incoming materials.
Therefore melt strength properties are an important
aid for plastic producers - it helps them to evaluate the
material quality before production and to determinate
the best para-meters in advance.
The instrument carries out a volumetric procedure
(MVI) and, by means of an optical system, determines
the volume of the material extruded at a pre-set time.
Three models are available :
• MFI extrusion plastometer, melt index tester
• TwelVindex with automatic cutting device and serial
interface
• MeP equipment for the characterisation of melted
plastics materials with automatic cutting device
Model 339 A - TwelVindex
with automatic cutting device and serial interface
Features
• To control incoming materials, subjected to breaking
during processing (e.g. blow moulding or spinning)
• The equipment runs rheological determinations up to
a 21.6 kg max. load - and calculates thermal degradation
of the product under test
• Equipped with a microprocessor that acquires,
elaborates and displays both the single values and
the mean values (max. 12 values).
• Combines a comparatively low cost with easy
operation
• Serial output RS-232
Non-wovens, Plastics, Textile
8.16B

Physical specifications
Dimensions
33 x 25 x 63 cm (LxWxH)
Net Weight
36 kg
Options
• Hasteloy test chamber, piston and die
for determinations of corrosive materials
• Personal computer and printer
• Software and cable
• Different mass
Performance data
Temperature range
From ± 50 °C to + 400 °C
Thermal control
PID digital thermoregulator governed by a
microprocessor and equipped with a four LED
digital display, 0.1 °C resolution and keyboard for
temperature setting
Thermal stability
0.2 °C in the heating area
Heating system
Two resistance set
Power supply
220 V, 50/60 Hz, single phase
Standards
ASTM D1238, D2116, D3369, BS 2782/105C,
AFNOR T 51/016, ISO 1133, DIN 53735, UNI 5640
Agent
Cardboard
Packaging
Plastics
Pulp
Non-wovens
Paper
Printing Inks
Textile
Nijverheidslaan 47 8540 Deerlijk Belgium
Tel.: +32(0)56.78.21.70 Fax: +32(0)56.77.30.40
Email: info@rycobel.be Website: www.rycobel.be