I have a Haake minilab with extrude/compounding module ~ 7 ml. It's very difficult to dose colored or protect additives because mass lay in diapason 1-50 mg. I suggest to work with mini extruders-compounders has volume about 50 ml.
I will share with you some experience gained working for a similar topic.
In our laboratory, we have small (capacity of 7 cm3) and slightly bigger (15 cm3) twin-screw extruders/micro-compounders and adequate injection molding machines (please visit our site, University of Mons, Laboratory of Polymeric and Composite Materials (Prof. Philippe Dubois) : http://morris.umh.ac.be/smpc/equipments.aspx )
You can also visit the web site of Thermo Fisher company : (http://www.thermoscientific.com/en/product/haake-minilab-ii-micro-compounder.html)
Following the general opinion, a twin-screw extruder of higher capacity (15 ml in your case) and a bigger injection molding machine (e.g. Xplore 12 ml) will be more usefully for your R&D works in the field of polymer nanocomposites.
We has been working with XPlore 15 ml for about 10 years. Additionally to the microinjection machine we also bought a film take-off unit and a spinning device.
A great advantage is the low volume to apply for extrusion of small amounts of lab-scale polymer.
All aof the instruments are very tough in application.
I will say that is not professionally to transfer some offers, because this kind of information must be sent to you directly by supplier or by its representative.
You can obtain very easy a preliminary offer for a micro-compounder of 15 ml (see http://www.xplore-together.com/products/micro-compounder/mc15) by contacting directly Xplore with your request which is the producer of equipment (http://www.xplore-together.com/contact/form).
However, you can use for a first contact their address email ([email protected]) or even the email of Mr. Leon Rijks, Director Xplore Instruments BV ([email protected]).
Research gate is a community or researchers connected by common interests and not a "public forum". Moreover, this is a specific thread of someone who wishes to buy a microcompounder in the free market. Sharing costs between colleagues can help them in the negotiation process even if the estimates are rough. Therefore getting a rough order of magnitude cost estimate between colleagues is quite reasonable before going through the time sink of contacting the sales channels just to get an estimate. I am very familiar with getting quotes and going to vendor websites. It is not necessary to patronize me because you do not share my opinion as stated above. Thank you for the contact information.
I don't know about the Xplore compounder and injection moulding machine. I have a ThermoScientific microcompounder MiniLab and an micro injection moulding machine MiniJet. I have a lot of problems with it with many, many reparations.
About your question, I would advise you to buy the biggest microcompounder (15 mL) and injection machine (12 mL).
I am interested to contact some research group, having a a twin-screw extruder of higher capacity (15 ml ) in order try to prepare a small amount of PLGA rods ( 0.8-1mm diameter X 10 mm length) for drug delivery study. Have you some suggestion to give me? Is there someone willing to collaborate with my research group on this topic (drug delivery devices)?
My lab has a 10mm 40/1 hot melt extruder that we currently use to make PLGA rods for drug delivery. They rang from 0.5 to 3mm in diameter and 2 to 40mm in length. I would be happy to collaborate.
We also hear the Xplore micro injection moulders with a shot volume of 5.5 or 12 ml can easily sit on laboratory bench and used easily. But I would like the prices, can you send some data about prices of this machine?