Model · Kneader compounding extruder
KNE-800 Kneader Compounding Line
KNE-800: kneading section plus SE-180 discharge, 400–800 kg/h — the volume size, most often bought for TPU/TPE/TPO/TPR and for carbon black masterbatch above 40%. A reference KNE-800 kneader compounding extruder page from Kerke.
KNE-800 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, NanjingQuick answer
The mid size of the kneader line: 400–800 kg/h on an SE-180 discharge. Two duties dominate — carbon black masterbatch above 40%, where the kneading section wets the CB without the shear heat a twin screw generates, and TPU/TPE/TPO/TPR where pellet shape and oil loading both matter.
Workshop photos and a running video — shot on our own lines, not stock images.
Parameters
| Line | Output (kg/h) | Discharge screw | Pelletizing | Typical product |
|---|---|---|---|---|
| KNE-800 | 400–800 | SE-180 | Water ring or strand | TPU · TPE · TPO · TPR, high-density colour masterbatch |
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
Between the KNE-400 (100–400 kg/h) and the KNE-1200 (800–1,200 kg/h). Against a two-stage twin screw such as the KTE-75B / SE-180 at similar tonnage: the kneader holds the loading and the heat history, the two-stage holds the price per kg/h.
What it runs
Duties: carbon black masterbatch above 40%, TPU/TPE/TPO/TPR, high-density colour masterbatch, and EVA-type compounds that a twin screw would shear-harden.
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…
TPE / TPU / TPR Elastomer Line
Elastomer compounding is dominated by oil: SEBS takes 100–300 phr, and injecting it all at once makes the screw slip i…
Configuration options
A KNE-800 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-800 or KTE-75B / SE-180 for black masterbatch?
Carrier and loading decide: above 40% CB, or on a heat-sensitive carrier, the kneader; standard PE/PP carriers at moderate loading take the two-stage and cost less per kg/h.
Which pelletizer follows the KNE-800?
Underwater where pellet shape is sold — TPU, EVA and elastomer grades — and water-ring hot-face for colour and carbon black masterbatch. The choice is fixed with the line, because the discharge screw's compression depends on it.
Can it run filler masterbatch too?
Yes, but at production loading that is the KNE-1200's duty. The KNE-800 runs filler masterbatch on small-lot and trial orders, where the 400–800 kg/h band is what the customer needs.
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-800 kneader compounding extruder — the short version
Note on KNE-800 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-800 kneader compounding extruder: the data on this page was last verified on our own test line in Nanjing.
Not sure which KNE-800 kneader compounding extruder configuration fits? Describe the material and the pellet shape required — we answer with a recommendation, not a brochure.
A KNE-800 kneader compounding 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