Model · Kneader compounding extruder
KNE-400 Kneader Compounding Line
The KNE-400: kneading section plus SE-120/SE-150 discharge, 100–400 kg/h — the line for filler masterbatch above 85% and for colour work where shear heat would degrade the carrier. A reference KNE-400 kneader compounding extruder page from Kerke.
KNE-400 kneader compounding extruder — workshop photo 1, Kerke workshop, Nanjing
Kneader compounding extruder — workshop photo 2, Kerke workshop, Nanjing
Kneader compounding extruder — workshop photo 3, Kerke workshop, Nanjing
Kneader compounding extruder — workshop photo 4, Kerke workshop, Nanjing
Kneader compounding extruder — workshop photo 5, Kerke workshop, Nanjing
Kneader compounding extruder — workshop photo 6, Kerke workshop, NanjingWorkshop photos and a running video — shot on our own lines, not stock images.
Parameters
| Line | Output (kg/h) | Discharge screw | Pelletizing | Typical product |
|---|---|---|---|---|
| KNE-400 | 100–400 | SE-120 / SE-150 | Water ring hot-face | High filler masterbatch, CaCO3 > 85% |
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
Above it sit the KNE-800 (400–800 kg/h) and KNE-1200 (800–1,200 kg/h). Against a two-stage twin screw line such as the KTE-50B / SE-120, the kneader wins on filler level and heat history; the two-stage wins on output per kW and on plain filling duty.
What it runs
Duties: CaCO3 and talc filler masterbatch at 85–90%, high-density colour masterbatch, and small-lot TPE/TPO compounds where the customer audits dispersion rather than output.
High Filler Masterbatch Line
Above 85% the melt stops behaving like a polymer: it will not take shear heat, and one machine cannot both wet out the…
Color Masterbatch Extruder Line
Colour masterbatch is a dispersion business with a cleaning problem attached: the same line has to make 20% pigment di…
Configuration options
A KNE-400 line is quoted as kneading section + discharge screw + pelletizer, because the three only work as a set. The kneading section is self-cleaning and jacketed, with a heat-exchange surface sized to the filler level; the discharge screw is sized from the kneading capacity per hour, not from motor kW. Options: discharge screw (SE-120 to SE-200), cutting system (water-ring hot-face, air-cooling die face, underwater or strand) and vacuum devolatilisation at the discharge where the mineral carries moisture.
FAQ
KNE-400 or KTE-50B / SE-120 for filler masterbatch?
Filler level decides: to about 80–85% the two-stage twin screw is cheaper per kg/h; from 85% up the kneader holds the loading without the dispersive shear heat that yellows the carrier.
How is the line sized?
From kneading capacity per hour, not from motor kW. We ask for filler mesh, carrier MFI and target loading, then size the discharge screw from that figure — two lines with the same installed power can differ by 40% in output.
Which cutting system suits the KNE-400?
Water-ring hot-face to about 85% filler: short water contact, no separate drying step. Above that, air-cooling die face; underwater if the line also runs TPU or EVA grades.
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.
KNE-400 kneader compounding extruder — the short version
Note on KNE-400 kneader compounding 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 KNE-400 kneader compounding extruder: the data on this page was last verified on our own test line in Nanjing.
Not sure which KNE-400 kneader compounding extruder configuration fits? Describe the material and the pellet shape required — we answer with a recommendation, not a brochure.
A KNE-400 kneader compounding extruder from Kerke ships with CE documentation, a test-run record and a recommended spare set.
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