Laboratory systems

Melt Flow Indexer LMI 4000 Series

Melt Flow Indexer LMI 4000 Series

For over 25 years the Dynisco Polymer Test has taken a leading role in working with the polymer processing industry to develop advanced polymer melt testing instrumentation for quality control and research applications. This extensive experience, combined with advances in electronics technology, has resulted in the new LMI 4000 melt flow indexers. Four melt flow indexer models are offered in the advanced Dynisco Polymer Test LMI 4000 series, each with features designed to meet specific application requirements. Customers benefit from the company’s applications expertise with services such as custom designed tests and material evaluation for process troubleshooting. Dynisco Polymer Test offers a wide range of polymer test equipment and technologies in addition to melt index monitoring, including laboratory analysis, compositional analysis and online rheology.

For a newer version of this product, view our LMI5000 and LMI5500.

D4001 Model

Method "A"
5-program memory
Digital display of flow rate


D4002 Model

Method "A" and "B"
20-program memory
Mini-printer output (optional)


D4003 Model

Methods "A" and "B"
60-program memory
Advanced statistical analysis
IV correlation of PET
Standard printer output


D4004 Model

All features of model D4003
PC communications capability
MIWORKS software for WindowsTM

Measuring piston for Melt Flow Indexers

Certified measuring piston for Dynisco capillary plastometer with a declared weight of 100g. The piston contains 3 marked positions (lines) that show the position of the start of sampling and the end of sampling in the range of 30 mm according to ISO 1133 and a distance of 1 inch for ASTM D1238.

Cleaning cotton patches

Cleaning patches for laboratory instruments have high quality cotton and low dust content. Thanks to this, you will always have the device quickly and comfortably cleaned of all polymer deposits inside the chamber. Thanks to 100% cotton, the polymer does not smudge along the wall of the chamber, but remains on a cotton wheel that does not tear or leave hairs.

Knife for manual cutting

Knife for manual cutting of the sample from the capillary plastometer and for subsequent cleaning of the capillary. It is made of high-quality wooden handle and fine steel, which guarantees flexible bending of the blade and ensures comfortable cutting of the sample.

Standard capillary 2,095 mm / 8 mm

Standard capillary for Dynisco plastometer with an inner diameter of 0.95 mm and a length of 8 mm. The capillary is identical on both sides and is coated with a layer of Wolram Carbide, which gives the capillaries greater hardness and longer life. The capillary is used for all standard polymeric materials up to a flow index range of 0.1 [g / 10min] to 80 [g / 10min]. For higher indices, we recommend using a so-called half-capillary with half dimensions.

Half capillary 1 mm / 4 mm

The half capillary is used for polymeric materials with very low viscosity. These materials, which achieve flow indices higher than 80 [g / 10min], will slow down and their testing will be no problem. If you are going to use a half capillary, you need to adjust the capillary plastometer settings and record this change in settings.

Drill for capillary cleaning

The swivel head of the drill bit (pin vise) provides comfortable operation. The two-end collet offers two different sizes for storing different drills. For greater control, this vice is made of corrugated aluminum. Under the rotating part of the handle there is another collet for larger drills.

Capillary brush

The stainless steel brush for the capillary with a diameter of 2.2 mm is an ideal helper for materials that are difficult to clean when hot. Thanks to its solid construction, it is very easy and comfortable to use, despite its miniature dimensions. The brush reliably cleans all residues of polymer deposits inside the capillary and thus ensures perfect measurement results.

Cleaning brush in the chamber

The copper brush with an extended adapter is used for manual cleaning of heavy deposits and burns in the plastometer or rheometer chamber. Due to the softness of the material, you do not have to worry about damaging the chamber of the device. Thanks to the extended length, it lasts longer and removes more dirt per cleaning than standard brushes. It is ideal mainly for materials such as PET / PET / PC and additives that cause burns, for example due to residual moisture, and are very difficult to clean with just cotton wheels.

Memmert dryer

The universally applicable Memmert laboratory dryer is a classic temperature control device in the field of research, science and materials testing. Technologically improved construction made of high quality and easy to clean stainless steel. It has ventilation and control technology (optional), protection against overheating and precisely tuned heating technology.

Inspection mirror

The inspection mirror is used for inspection when cleaning the device, thanks to the telescopic handle you can easily and without risk get everywhere where you would otherwise have to lean or lean towards places with high temperature and thus avoid the risk of burns.

Roller caliber for capillary

Certified roller caliper for capillary inspection of a Dynisco plastometer. The green end of the gauge must pass through the inner hole of the capillary, but the red end of the gauge must not pass through the hole. If the red side of the roller caliper passes through the capillary, it means that the inner diameter of the capillary does not correspond to the required parameters and must be replaced.