Send us the question you would ask a colleague. Element selection, wear, dispersion problems, torque limits, a part you cannot identify — if it concerns a twin-screw extruder we will answer it, whether or not you end up buying from us.
The more of the following you include, the more useful the answer will be. A question with dimensions gets a specification; a question without them gets a general principle.
| What to include | Detail that helps |
|---|---|
| Extruder make and model | Coperion ZSK 92, KraussMaffei ZE 70, Leistritz ZSE 60 — or the nameplate photo. |
| Screw diameter and L/D | Nominal diameter in millimetres, and barrel length in diameters. |
| The element position | Which zone: feed, melting, dispersion, venting or discharge. A numbered shaft layout is ideal. |
| What the problem is | Output loss, specks, torque alarms, wear, breakage — and when it started. |
| The recipe | Polymer, filler or pigment type and loading. This changes the recommendation more than the model number. |
| Photos | The worn part next to a rule, and the barrel bore if it is accessible. |
Email it to sam@tmd-compounding.com with the machine model in the subject line. Attach photos directly — they are the fastest way to identify a part.
Answers that are useful to other processors are rewritten as articles in the knowledge base, without your company name or any identifying detail.
Technical questions are usually answered within one working day. If the question needs a drawing or a material recommendation, allow two to three days.
No. We answer technical questions free of charge, whether or not you buy from us. It is how we find out what processors actually struggle with.
Only if it is useful to other processors, and only without your company name or any identifying detail. Tell us if you would rather it stayed private.
Sometimes, for a standard element where the geometry is obvious. For anything critical we need dimensions: outside diameter, root diameter, axial length, pitch or disk width, and the shaft spline.
Yes. If we do not make the part we will say so rather than guess.