Machine · Triple screw KTE-T
Triple Screw Extruder KTE-T (52D / 65D / 75D / 95D)
A third screw buys one more folding surface, which means the same dispersion in a shorter screw — the reason black masterbatch runs at L/D 32–40 instead of 48. A reference triple screw extruder page from Kerke.
Triple screw KTE-T — workshop photo 1, Kerke workshop, Nanjing
Triple screw KTE-T — workshop photo 2, Kerke workshop, Nanjing
Triple screw KTE-T — workshop photo 3, Kerke workshop, Nanjing
Triple screw KTE-T — workshop photo 4, Kerke workshop, Nanjing
Triple screw KTE-T — workshop photo 5, Kerke workshop, Nanjing
Triple screw KTE-T — workshop photo 6, Kerke workshop, NanjingQuick answer
The KTE-T triple screw range covers 51.4–93 mm at 100–1,200 kg/h. Three screws give one more mixing flank than a twin screw, so carbon black and pigment dispersion is reached in a shorter L/D — typically 32–40 instead of 48. Preferred for black masterbatch and high-concentration colour.
Workshop photos and a running video — shot on our own lines, not stock images.
Parameter table
| Model | Screw dia. (mm) | Output (kg/h) | Typical product | Note |
|---|---|---|---|---|
| KTE-T-52D | 51.4 | 100–300 | Black masterbatch, colour | Lab-to-pilot bridge |
| KTE-T-65D | 62.4 | 200–500 | Black masterbatch 30–40% CB | Most common |
| KTE-T-75D | 71 | 400–800 | Black / filler masterbatch | Water ring or underwater |
| KTE-T-95D | 93 | 800–1,200 | High output black masterbatch | Large plant |
Reference output measured on the stated material family; subject to a material trial. Motor and torque values are per machine, not per screw shaft.
Where a triple screw beats a twin screw
Dispersion of fine particles is a function of how many times the melt is folded. The third screw adds a folding surface, so the same dispersion quality is reached with a shorter screw and lower energy input — which matters at 40% carbon black, where every extra kneading block costs output.
Where it does not
Glass fibre is the clearest no: the third screw breaks fibre length, and impact strength drops below a twin screw at the same GF content. Filler masterbatch above 88% also stays on the two-stage platform, where die pressure — not dispersion — is the limit.
What this machine is normally bought for
Black Masterbatch Extruder Line
Carbon black at 40% costs 20–25% of the output of a general colour masterbatch on the same machine — dispersion eats t…
Color Masterbatch Extruder Line
Colour masterbatch is a dispersion business with a cleaning problem attached: the same line has to make 20% pigment di…
Filler Masterbatch Extruder Line
Filler masterbatch is sold by the tonne, so the line is judged on two numbers only: how much powder it can swallow, an…
FAQ
Is a triple screw better than a twin screw?
For dispersion-limited products — black masterbatch, high-concentration colour — yes, at equal output and lower energy per kg. For filling and general compounding the price difference is not justified.
Can it run glass fibre?
Not as the primary choice. Fibre breakage is higher than on a twin screw with a late side-feed position; we quote KTE-D for reinforcement.
What about spare parts?
Screw elements and liners are manufactured in our own workshop, delivered in 24–48 hours for standard sizes.
Where these numbers come from
Screw diameters, speeds, motor ratings, torque and reference output come from the Kerke parameter table and the product master data sheet, and are cross-checked against commissioning records. Where a catalogue value and a trial value disagree, the trial value is the one we quote.
Reviewed by the Kerke process team, Nanjing. Page updated 6 November 2026.
Send 25–50 kg — we return pellets, a video and a report with the parameters we used, in 3–7 days.
Triple screw extruder — the short version
Note on triple screw extruder: what separates one machine from another is torque class, L/D and the wear package matched to your material, not the build standard. Shortlist from the tables, then confirm the choice on a trial with your own powder.
Planning an upgrade this quarter? Send the material and the target output — the configuration comes back within one working day.
Every quotation lists the wear package as a separate line, so its cost is visible from day one.
Questions are answered the same day, in English or Chinese.
Note on triple screw extruder: the data on this page was last verified on our own test line in Nanjing.
Not sure which triple screw extruder configuration fits? Describe the material and the pellet shape required — we answer with a recommendation, not a brochure.
A triple screw extruder from Kerke ships with CE documentation, a test-run record and a recommended spare set.
Related on this site: Extrusion lines by application · Extruder selection guide · free extrusion line quotation · Wikipedia: Twin-screw extruder