11 machine families
Machines, sized by torque not by tonnage
Eleven twin screw extruder types and machine families, from a 15.6 mm lab screw to a 135 mm production machine — 1–4,000 kg/h. Two numbers decide the model: the torque class (B or D) and the L/D the formulation needs. Everything else is a consequence.
Co-rotating twin screw KTE
80–4,000 kg/h, B and D Gearboxes — The KTE twin screw range runs from 50.5 mm to 135 mm screw diameter at 80–4,000 kg/h. Two gearbox classes: B (T/A³ 6–8) …
Two-stage KTE/SE
Stable Output at 85–90% Filling — A two-stage KTE/SE line pairs a twin screw (compounding, devolatilization) with a single screw (pressure build-up). It i…
Triple screw KTE-T
Better Dispersion in a Shorter L/D — 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 sc…
Kneader compounding extruder
Kneader + Single Screw, 100–1,200 kg/h — A kneader compounding extruder is one continuous line in two duties: a self-cleaning kneader reactor wets out and disper…
Single screw SE
100–2,000 kg/h, Lowest Cost per kg — The SE single screw range covers 50–200 mm at 100–2,000 kg/h. It is the lowest-cost way to melt, filter and pelletize re…
Two-stage SE/SE
Film & Woven Bag Recycling — SE/SE two-stage single screw lines handle PE/PP film, woven bag and low-bulk-density scrap at 200–2,000 kg/h: a compacto…
Lab & pilot twin screw
1–150 kg/h Trial & Small Batch — Lab and pilot twin screw extruders from KTE-16 (15.6 mm) to KTE-36B (35.6 mm) cover 1–150 kg/h. They are used for formul…
Pelletizing systems
Water Ring · Strand · Underwater · Air-Cooled — Seven pelletizing methods cover every product we sell: water-cooled strand, air-cooled strand, water-ring strand, water …
Gravimetric feeding
±0.5% Closed-Loop Dosing — Gravimetric feeders dose masterbatch and additive streams at ±0.5% accuracy in closed loop, from 1 kg/h to 250 kg/h per …
Auxiliary & spare parts
Mixers · Pelletizers · Gearboxes · Elements — Auxiliary equipment and spare parts include SHR high-speed mixers (5–1,000 L), LQ strand pelletizers, screen changers, d…
Lab & material trials
3–7 Days, Pellets + Video + Report — Our lab runs KTE-16, KTE-20B, KTE-36B and a small single screw with water-ring, strand and underwater pelletizing. Send …
Twin screw model index
Fifteen models, one screw platform. The same 65 mm screw exists in three torque classes; the price difference buys torque, not diameter.
| Model | Dia. (mm) | Speed (rpm) | Motor (kW) | Torque (N·m) | Output (kg/h) |
|---|---|---|---|---|---|
| KTE-50B | 50.5 | 500–600 | 55–75 | 2×525 | 80–200 |
| KTE-50D | 50.5 | 300–800 | 75–90 | 2×860 | 100–300 |
| KTE-52B | 51.4 | 500–600 | 55–75 | 2×720 | 80–200 |
| KTE-52D | 51.4 | 500–600 | 75–110 | 2×1050 | 100–400 |
| KTE-65 | 62.4 | 500 | 75–90 | 2×720 | 100–350 |
| KTE-65B | 62.4 | 500–600 | 90–110 | 2×860 | 200–450 |
| KTE-65D | 62.4 | 300–800 | 132–160 | 2×1530 | 350–600 |
| KTE-75 | 71 | 300–800 | 110–132 | 2×1050 | 300–500 |
| KTE-75B | 71 | 500–600 | 132–160 | 2×1530 | 300–800 |
| KTE-75D | 71 | 300–800 | 200–315 | 2×2100 | 500–1000 |
| KTE-85B | 85 | 500–600 | 220–315 | 2×2100 | 550–1000 |
| KTE-95B | 93 | 500–600 | 250–315 | 2×3000 | 800–1500 |
| KTE-95D | 93 | 500–800 | 315–500 | 2×4800 | 1000–2000 |
| KTE-135B | 135 | 500–600 | 315–500 | 2×4800 | 1500–3000 |
| KTE-135D | 135 | 500–800 | 500–1000 | 2×7800 | 1500–4000 |
Reference output on the stated material family; subject to a material trial.
All 43 models, one page each
Every model in the range has its own page: the specification row, where it sits against its neighbours in the same screw family, the formulations it is built for, the configuration options that matter at that size, and the three questions buyers ask most. Start from the family name if you already know the platform; start from the application page if you know only the material.
Co-rotating twin screw KTE
15 models · 80–4,000 kg/h, B and D Gearboxes
Two-stage KTE/SE
4 models · Stable Output at 85–90% Filling
Single screw SE
8 models · 100–2,000 kg/h, Lowest Cost per kg
Torque class B or D is fixed per model; L/D, wear package and pelletizing method are configured at quotation.
FAQ
How do I choose between the machine families?
By torque class and L/D for the material, not by tonnage: the KTE twin screw platform runs from the 16 mm lab unit to the 135 mm production machine, with KTE-T triple screw, two-stage KTE/SE and SE single screw as the special cases.
What are the smallest and largest machines?
Smallest is the KTE-16 lab extruder at 1-5 kg/h; largest is the KTE-135D production twin screw up to about 4,000 kg/h depending on material.
Can I see a machine running before ordering?
Yes - send 25-50 kg of material and we run it on a lab extruder in 3-7 days, returning pellets, video and a measured output report.
Describe the material and the target output — we will name the model and the alternative, with the trade-off in writing.
Twin screw extruder types — the short version
Note on twin screw extruder types: the families below differ in torque class, L/D and pelletizing method, not in build standard. Shortlist from the tables, then confirm on a trial with your own material.
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 twin screw extruder types: the data on this page was last verified on our own test line in Nanjing.
Not sure which twin screw extruder types configuration fits? Describe the material and the pellet shape required — we answer with a recommendation, not a brochure.
A twin screw extruder types from Kerke ships with CE documentation, a test-run record and a recommended spare set.
Related on this site: Extrusion lines by application · Co-rotating twin screw extruder · free extrusion line quotation · Wikipedia: Masterbatch