products details
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OEM ODM Screw Element For Glass Fiber Compounding Extrusion Machine Food Industry
| Brand Name: | OEM |
| Model Number: | ESE024 |
| MOQ: | Negotiable |
| Price: | Negotiable |
| Payment Terms: | T/T,L/C,Negotiable |
| Supply Ability: | 8000pcs/month |
OEM twin screw extruder elements
,ODM twin screw extruder elements
,Food Industry twin screw extruder screw elements
Screw Element for Glass Fiber Compounding Extrusion Machine | Food Industry
High-Precision Screw Elements for Glass Fiber Compounding in Food & Food-Packaging Extrusion
Built for two hard problems at once: abrasive glass fiber, and food-safety compliance.
Glass fiber compounding is one of the most punishing duties a twin screw extruder screw element can face. Hard glass filaments abrade the flight tips continuously, while the compounding requirement — long fiber retention, uniform dispersion, consistent melt seal — demands precise geometry that does not degrade after a few hundred hours of service.
At the same time, food and food-packaging extrusion adds a second layer of constraint: every component in the product-contact zone must be cleanable, corrosion-resistant, and free of surface defects that could trap material or harbor contamination.
Our screw elements are engineered for both. They are widely used in glass fiber reinforced compounding lines that feed food-contact and food-packaging applications — glass fiber reinforced PP/PA trays, food-grade masterbatch carriers, degradable (PLA/PBAT) filled compounds, and food powder extrusion.
A Segmented, Self-Wiping Design That You Can Rebuild On Site
Each element is machined from a single billet and then mounted on the splined screw shaft to form a "building-block" screw configuration. Elements can be re-sequenced or individually replaced without scrapping the whole screw shaft — a direct reduction in maintenance cost and downtime.
The self-wiping Erdmenger profile gives the screws excellent self-cleaning behavior. Material cannot stagnate in the intermeshing zone, which means:
- Short, uniform residence time — critical for heat-sensitive food ingredients and for avoiding degradation
- No dead zones — easier cleaning validation (CIP-friendly when specified)
- Consistent melt seal — stable pressure build-up before the die
Functional Element Types We Manufacture
| Element Type | Model | Primary Function | Typical Position |
|---|---|---|---|
| Single-flighted conveying element | 1F | High-volume, low-shear transport | Feed zone |
| Double-flighted conveying element | 2F | Balanced conveying and pressure build-up | Melting / metering |
| Triple-flighted conveying element | 3F | Low-pulsation metering | Die head |
| SK / SKN conveying element | SK / SKN | High free volume, gentle conveying for powder & fiber | Side feeder / feed |
| Forward kneading block | KB 30°/45°/60°/90° | Dispersive mixing, high shear | Melting, dispersion zone |
| Neutral kneading block | KB N | Distributive mixing, no net conveying | Fiber wetting zone |
| Reverse kneading block | KB R | Backpressure, melt seal, residence time control | Before vent / die |
| Toothed mixing element | TME | Flow splitting & recombination, low-shear distributive mixing — best choice for glass fiber | After side feeder |
| Screw mixing element | SME / ZME / CKE | Combined distributive + dispersive mixing | Compounding zone |
| Elongational mixing element | EME | Elongational (not shear-based) fiber dispersion, preserves fiber length | Fiber-reinforced systems |
| Side feeder element | — | Gentle handling of glass fiber / mineral filler | Side feeder barrel |
Materials & Heat Treatment
For standard wear (food-grade, low-abrasion):
- Nitrided steel 38CrMoAlA, ion-nitrided to a 0.4–0.7 mm case, HV 950–1100, core hardness HRC 28–32
- Stainless steel 316L / 304 / 2205 duplex — for maximum corrosion resistance and food-contact compliance; non-magnetic, no rust risk in wash-down environments
- Other food-compatible grades: C-276 (Hastelloy), 17-4PH, 420 / 440C martensitic stainless
For high wear (glass fiber, 30–50% GF loading):
- W6Mo5Cr4V2 high-speed tool steel, vacuum quenched + triple tempered, HRC 60–64
- HIP powder metallurgy alloys: WR13 / WR14 / WR5, CPM10V / CPM9V — homogeneous carbide distribution for dramatically extended flight-tip life
- H9 / H10 / H26 cobalt-chromium-tungsten alloys
For combined wear + corrosion (flame retardant + GF, food contact):
- PM HIP WR13 / WR14 / CPM10V with polished, passivated surface
Surface treatments available:
- Vacuum quenching & tempering (standard)
- Gas / ion nitriding
- PVD coatings (TiN / TiAlN / CrN) — reduces adhesion, provides a harder, low-friction and easier-to-clean surface
- DLC (Diamond-Like Carbon) coating — recommended for glass fiber composites
- Mirror polishing Ra ≤ 0.4 µm — for food-contact and cleanability requirements
- Electropolishing / passivation for stainless grades
Key Specifications
| Parameter | Range |
|---|---|
| Diameter (Do) | Ø18 mm – Ø400 mm (incl. 15.6 / 20 / 26 / 30 / 36 / 40 / 50 / 62.8 / 71 / 75 / 92 / 133 mm) |
| Do/Di ratio | 1.22 – 1.80 (standard 1.55 – 1.80) |
| Element length | 0.5D – 2.5D per segment |
| Pitch | Customized (e.g. 20/20, 30/30, 40/40, 48/48, 64/64, 72/72) |
| Flights | Single / double / triple flighted |
| Surface hardness | HRC 58 – 64 (nitrided steel HV 950–1100) |
| Nitriding depth | 0.4 – 0.7 mm |
| Max. operating temperature | ≤ 450 °C |
| Straightness tolerance | ≤ 0.01 mm |
| Spline / keyway fit | H6 — interchangeable, OEM-compatible |
| Wear resistance | Standard / High / Ultra-high |
| Corrosion resistance | Standard / High / Ultra-high |
| Surface roughness | Ra 0.4 – 1.6 µm (polished options: Ra ≤ 0.4 µm) |
| Certificate | ISO 9001:2015 |
Applications
- Glass fiber reinforced food packaging compounds — GF-PP / GF-PA trays, crates, closures
- Food-grade masterbatch production — pigment, antioxidant and additive carriers
- Biodegradable filled compounds — PLA / PBAT / starch blends with mineral or fiber fillers
- Food powder extrusion — cereal flours, protein blends, snack and cereal extrusion
- Pet food & aquatic feed extrusion — reinforced compounding with vitamin/mineral premixes
- Pharmaceutical & nutraceutical excipient compounding — where stainless / polished grades apply
- Wood-plastic composite (WPC) and powder coating compounding — same platform, high filler handling
Compatible Machine Brands
Our elements are geometrically interchangeable with — and directly replace — original parts from:
Coperion (Werner & Pfleiderer ZSK series) · KraussMaffei Berstorff · Leistritz · JSW · Toshiba · Buss · Theysohn · Clextral · Buhlre · APV · Kobe · OMC · Labtech · Maris · Keya · Useon · Lantai and other co-rotating twin screw extruder platforms.
Why Buyers Choose These Elements
- Competitive cost per unit of production — OEM-equivalent geometry at aftermarket pricing
- Fast turnaround for refurbishment and replacement of worn parts
- Stock availability across a wide range of extruder makes and sizes
- Comprehensive pre-dispatch inspection on every part — dimensional, hardness and surface report
- Proven metallurgy and latest manufacturing processes ensure consistent, repeatable performance batch after batch
- Customized solutions — non-standard geometry, on-site screw mapping and full-line screw configuration design
Provided With Every Order
- Dimensional inspection report
- Material certificate & heat-treatment record
- Hardness test report (HRC / HV)
- Recommended installation direction and torque spec
- Wooden case, sea-worthy / export-standard packaging
- Lead time: 30–50 days after order confirmation (stock items shorter)
Ordering Information
To quote accurately, please provide: extruder brand & model, screw diameter, Do/Di ratio, element type and pitch (or OEM part number), required quantity, processed material and filler content, and operating temperature. If you only have the physical part, we can reverse-engineer from a dimensional drawing or a sample.
