Model · Co-rotating twin screw KTE
KTE-75D Twin Screw Extruder
KTE-75D: 71 mm, 2×2,100 N·m, 200–315 kW, 500–1,000 kg/h — the high-torque workhorse for 90% filler, glass fibre and serious reactive volume. A reference KTE-75D twin screw extruder page from Kerke.
KTE-75D twin screw extruder — workshop photo 1, Kerke workshop, Nanjing
Co-rotating twin screw KTE — workshop photo 2, Kerke workshop, Nanjing
Co-rotating twin screw KTE — workshop photo 3, Kerke workshop, Nanjing
Co-rotating twin screw KTE — workshop photo 4, Kerke workshop, Nanjing
Co-rotating twin screw KTE — workshop photo 5, Kerke workshop, Nanjing
Co-rotating twin screw KTE — workshop photo 6, Kerke workshop, NanjingQuick answer
The KTE-75D is where severity and volume meet: 71 mm screw carrying 2×2,100 N·m and up to 315 kW, 500–1,000 kg/h reference output. Glass-fibre compounds, 88–90% filler masterbatch and reactive extrusion at production scale are its home ground.
Workshop photos and a running video — shot on our own lines, not stock images.
Parameters
| Model | Dia. (mm) | Speed (rpm) | Motor (kW) | Torque (N·m) | Output (kg/h) |
|---|---|---|---|---|---|
| KTE-75D | 71 | 300–800 | 200–315 | 2×2100 | 500–1000 |
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 it fits in the range
Top of the 71 mm family: base KTE-75 and KTE-75B share its screw platform. The KTE-85B above it trades torque class for bore — same 2×2,100 N·m on an 85 mm screw — and the KTE-95D (2×4,800 N·m) is the next severity step for 1,000 kg/h+ lines.
What it runs
Duties: glass fibre PP/PA at 30–40% in volume, 90% CaCO3 masterbatch with gravimetric side feeding, HFFR cable compound at line speed, TPU reactive extrusion, and toll compounding where the hardest recipe of the month sets the gearbox.
Glass Fiber Compounding Line
Glass fibre reinforcement is not about getting fibre in — it is about not breaking it on the way through. Screw geomet…
High Filler Masterbatch Line
Above 85% the melt stops behaving like a polymer. Output no longer follows screw speed, and the machine that held 82% …
HFFR / LSZH Cable Compound Line
HFFR compound carries 50–60% metal hydroxide, which starts decomposing around 180 °C. The line has to disperse it thor…
Configuration options
Every KTE ships as a building-block system: screw elements on splined shafts, barrel modules that accept side feeders, liquid injection and vacuum vents, so the geometry is set by the formulation rather than fixed at the factory. Three choices define a KTE-75D quotation: the L/D (32–36 for simple filling, 40–48 with side feed and devolatilization, 52–60 for reactive duties), the wear package (standard 38CrMoAlA or bimetallic liner with PM/HIP elements where CaCO3, talc or glass fibre grind), and the pelletizing head (strand, water ring, air-cooled hot face or underwater — matched to the polymer, not to the model number).
FAQ
75D or 85B — same torque, which wins?
Duty decides: at equal 2×2,100 N·m the 85B gives more volume for easy-flowing high-output work, the 75D gives higher peripheral-speed discipline for shear and fibre control. Glass fibre goes 75D; filler masterbatch at 800 kg/h goes 85B.
Can the 75D run glass fibre without excessive breakage?
Yes — late side-feed position, low-rpm regime inside the 300–800 window, and medium L/D. Fibre-length retention is a screw-geometry subject; we prove it on the trial with your chips and measure the result.
What building backs the 1,000 kg/h figure?
Reference output on the stated material family. Real numbers depend on formulation; we guarantee output only against a trial report, and the 2×2,100 N·m gearbox is what keeps the guarantee credible at 90% filler.
Where these numbers come from
Parameters come from the Kerke parameter table and product master data sheet, cross-checked against commissioning records for the same model and duty. 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.
KTE-75D twin screw extruder — the short version
Note on KTE-75D twin 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 KTE-75D twin screw extruder: the data on this page was last verified on our own test line in Nanjing.
Not sure which KTE-75D twin screw extruder configuration fits? Describe the material and the pellet shape required — we answer with a recommendation, not a brochure.
A KTE-75D twin screw extruder from Kerke ships with CE documentation, a test-run record and a recommended spare set.
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