2006
Manufacturing since
30,000 m²
Production site
30+
Countries supplied
Ex-stock
Chinese-machine parts
We make the five part families that decide whether a twin-screw extruder keeps running: screw elements, kneading blocks, barrel sections and liners, and screw shafts. All of them are machined to OEM dimensions, so they fit Coperion ZSK, KraussMaffei Berstorff, Leistritz, JSW and Shibaura machines as well as Chinese platforms such as Giant, Jieya and Useon.
Screw elements and kneading blocks
Conveying flights, screw segments, kneading blocks and mixing elements in PM-HIP or nitrided steel.
Barrels and barrel liners
Figure-8 bore sections, nitrided, bi-metallic or HIP-clad liners, plus re-boring and re-lining.
Screw shafts
Splined core shafts to DIN 5480, matched to the element set and checked for runout.
Coperion ZSK compatible parts
ZSK 58, 70, 92 and 133 replacement elements, barrels and shafts, dimensionally interchangeable.
Parts by machine brand
KraussMaffei Berstorff, Leistritz, JSW, Shibaura and the Chinese brands we support.
| Part | What it does | Typical material | What kills it |
|---|---|---|---|
| Screw element | Conveys, melts and pressurises | PM-HIP 1.2379 / 1.2380, nitrided 1.8550 | Abrasive filler at the flight tip |
| Kneading block | Mixes and disperses | Same as elements, often coated | Over-torque and dry running |
| Barrel section | Holds the bore and the heat | Nitrided, bi-metallic or HIP-clad liner | Wear in the two lobes, cracks at the intersection |
| Barrel liner | Sacrificial wear surface | Nitrided steel, Ni60, Hastelloy | Lifting at the edge, corrosion underneath |
| Screw shaft | Carries the whole torque | 40CrNiMo, H13 or WR15E to your drawing | Torsion fatigue at the spline root |
Four pieces of information are enough for us to quote a part that fits. If you have none of them, photograph the old part and send that instead — we reverse-engineer from a sample every week.
Yes. Every part is machined to OEM dimensions and we work either from the OEM drawing or by reverse-engineering a sample you send. That covers Coperion ZSK, KraussMaffei Berstorff, Leistritz, JSW and Shibaura, alongside Chinese platforms such as Giant, Jieya, Chuangbo, Chengmeng, Meizhilong, Jinwei, Useon and Kerke.
One piece. We regularly ship a single element for an urgent breakdown as well as complete screw sets for a planned overhaul.
Parts for Chinese standard machines are normally held in stock and can ship immediately. For imported-machine parts allow 30 to 45 days once material is available and drawings are confirmed, plus transit.
Yes. Send the screw layout or the old set and we will supply elements, shaft and, where needed, the torque-limiting coupling as one matched assembly, with the tip clearance set before shipment.
Count the element position from the feed end, photograph the part next to a rule, and note the screw diameter and machine model. That is usually enough. If it is not, post us the worn part and we will measure it.
Email a photo, a drawing or the OEM part number and we will come back with a quotation.
Request a quote