1. Micro Injection Moulding Machine HAAKE MiniJet
Micro Compounder HAAKE MiniLab
HAAKE PharmaMiniLab
Dr. A. Frendel

2. HAAKE MiniJet – Micro Injection Moulding
Injection moulding machine for producing small test specimens like tensile bar, impact bars and disks
The injection moulding machine can be used in combination with the Haake MiniLab, but also as a stand-alone machine
Numerical controlled
2 Temperatures (reservoir and mould)
Pressure controlled
Procedure controlled 1. Injection pressure & duration, 2. Post pressure & duration
All parameters can be stored (10 recipies)
Language: English, German, French
Units: bar, psi - °C, F, K
Improved handling
No pressing lever necessary (required for horizontal design)
Easy filling of pellet samples
Increased performance
Same injection pressure from 40% less feeding pressure!
Tmax: 400°C (container)
Tmax: 250 °C (mould)

3. HAAKE MiniLab: Continous Extrusion with Force Feeder
For powders and small pellets

4. MiniLab Counter Rotating Screws
Intermeshing counter rotating screws are most effective to improve results melt extrusion of multi wall carbon nanotube composites. Due to higher shear agglomerates are well distributed. Degradation of stabilized PMMA and MWNT was not observed (1).
(1) R.E. Gorga, R.E. Cohan, (MIT), Toughness enhancements in PMMA by MWNT, Journal of Polymer Sci (2004)

5. New sensor and feed ports expand possibilities
½“ UNF port (upper barrel half) for non return valve
e.g. liquid or gas injection
Counter rotating screws recommended
½“ UNF port opposite to 2. Pressure port (upper barrel half)
e.g. UV – curing, NIR p1 p2
The extruder has two operation modes:
The bypass valve is set to the cycle mode and the material is flowing through the backflow channel. So the residence time of the material inside of the extruder can be controlled. The backflow channel is housing two pressure transducers which can give us rheological information during the extrusion process. The details on that will follow at the end of this presentation.
The bypass valve is set to flush mode. The material will flow out through the output channel. The extruded material can either be collected as a strand, or a little mould for a small injection moulding machine can be filled.

6. New Feed port In the upper barrel half Liquid feed Gas Injection
Degassing
All additional ports: Factory installed only, long delivery time !

7. New Sensor Port

8. Continuous Production
Example (right)
PMMA/Cellulosis blends for tablet coating 180 grs/hr or thin filaments of 100µm

9. Pharma MiniLab Features
Housing
No painted parts
All sheet metal is made of stainless steel (304)
Air supply connectors made of stainless steel
New developments of our standard Pharma MiniLab:
We are currently working on our next generation model which will show improvements regarding cleaning features with an open outlet area.