The Unseen Engine of Your Extrusion Line: Engineered Core Components
The true cost of an extrusion line isn't just its price tag;it's the cost per kilogram of flawless output. At the heart of this efficiency are the core components—the parts that touch your material and define your product's quality. JWELL doesn't just supply replacements; we provide precision-engineered upgrades designed to solve specific production challenges, extend uptime, and push the limits of your line's capability.
The Material Transformation System: Screws & Barrels
Tackling the root causes of poor melt quality, low output, and premature wear.
For Pipe/Film/Sheet Series Screws: Generic screws compromise performance. Our screws feature application-specific compression ratios and flight geometries. For HDPE pipe, this means optimized melting to prevent unmelts; for LLDPE film, it means controlled shear to avoid degradation and achieve superior bubble stability.
For Conical Twin-Screws: "Beyond parallel twins, our conical screws create a natural volumetric compression, ideal for densifying PVC powder and other low-bulk-density materials. This results in a more stable extrusion process and higher mass flow rates from a smaller footprint."
For Bimetallic Alloys Series: "When processing abrasive filled compounds, standard components fail. Our bimetallic liners and screws integrate tungsten carbide-based alloys at the feed and compression zones, offering 4-8x the wear resistance of standard nitrided steel, transforming your maintenance schedule."
The Surface & Gauge Definition System: Precision Rolls
Achieving not just cooling, but definitive surface finish and dimensional accuracy.
Casting Film Roller：
Manufactured casting film roller strictly according to European professional manufacturing standards. Several steps of welding and heat treatment process are applied to give ensurance to the overall rigidity and reliability of roller structure.
In order to ensure its efficient heat exchange, casting roller flow channel are designed with the special spiral, and through accurate calculation of the coolant flow, the roller surface temperature deviation are reduced to the least possible. It improves the temperature uniformity of the product.
Chill Roller,Casting Roller:
This product is widely used in master casting forming of BOPP, BOPET, BOPA, BOPS, BOPI biaxial oriented stretching line and longitudinal stretching line. Special inner circulation channel is designed to improve the heat conversion efficiency and temperature control accuracy. After replacing with this kind of technically updated roller, the casting efficiency will rise by 20%-30%.
Electromagnetic Heating Roller:
With the wide application of heating roller in various industries, electromagnetic heating roller is replacing heat conduction oil heating roller, so far electromagnetic heating roller is successfully used in laser anti-counterfeiting printing, die stamping, automotive laminated glass composite, composite film production, medical tape, pharmaceutical packaging, non-woven fabric production, aluminum-plastic panel agglutination, synthetic fiber, rubber and plastic calendaring and other industries.
For Super Mirror Rolls
"Surface defects on the roll are telegraphing defects onto your product. Our multi-stage polishing process achieves a sub-micron surface finish (Ra ≤ 0.01μm), eliminating the root cause of visual defects in high-gloss automotive trim or optical substrates."
For Hot Mill Roller
Hot Mill Roller have superior strength、tenacity and heat resistance due to the special design structure. The roller can be used in high density plastic plate and sheet forming and non-woven fabric heat compounding.The roller inside structure design as spiral channel and circum drilling hole,the temperature difference between double sides of the roller will be smaller and the thermal efficiency will be higher.
For Micro-Structure Rolls for Optical Film
"This is micro-engineering. We use advanced etching and diamond-turning techniques to create precise micro-prismatic or lens patterns on the roll surface. This directly imparts complex optical functions—like brightness enhancement or light control—into the film itself, a capability critical for display and energy-efficient lighting manufacturers."
For Embossing Rolls:
"Our pattern design service considers polymer flow and shrinkage. We engineer embossing rolls that create deep, consistent textures with sharp definition for synthetic leather or non-slip surfaces, ensuring the pattern remains vivid after material cooling and stretching."
For Roller for Drainage Board and Special-shaped Surface Forming
According to the different material of products, and with full consideration to the product expansion and contraction, and gas venting nature, etc., we use high precision CNC processing equipment for the roller surface precision machining. The precision of the special surface forming roller will help ensure the quality of product to fully meet the need of users.
Products may apply to drainage board, honeycomb panel, water stop plate, bubble wrap and other purposes.
The Product Profiling System: Extrusion Dies
Controlling the final shape with precision that defines product consistency and minimizes waste.
For Sheet Dies with Automatic Gauge Control:
"Manual deckle adjustments are reactive. Our dies with thermal or mechanical automatic profile control (APC) systems provide real-time, closed-loop correction of thickness variations. This proactive approach reduces off-spec material by up to 30% and is essential for high-tolerance medical or electronic sheet."
JW-P-C1
With coat-hanger channel design, adjustable upper die lip, changeable lower die lip and 45°blocking bar, the die is fit for PVC, PS, PP, PE, PC single or multi layer sheet with the thickness of 0.8-12mm.
JW-P-C2
Adopting gradually water drop shape and flat shoulder type flow channel ,with triangle diversion technology, ladder style flow, effectively eliminate the extrusion process for high pressure lead to mould mouth deformation.The upper die lip is a manual push-off type fine-tuning elastic modulus lip.precisely adjustment,with a flat blocking bar can eliminate the material stranded, solve the materials decompose problem because of stay too long.The die lip can exchange, according to different thickness equipped with different open die lip. Applicable for PC, PS, PP, PE, PLA, PVC single-layer or multi-layer plate.
JW-P-K1
Fast opening die series, the upper die lip with fine-tuning push-pull type, the flexible lower die lip can adjusting product thickness on-line without stop, the Max adjusting range up to 5 mm, Equip with 45°blocking bar, it is suitable for produce PC, PS, PP, PE, PLA, single-layer or multi-layer plate.
JW-P-A1
With coat-hanger channel, micro-adjustable upper die lip, the die is perfect for single-layer or multi-layer PET(APET, PET)PC, PS, PP, PLA plate with the width ≤2100mm, and the thickness between 0.14-2mm.
JW-P-AT1
Auto-adjusting die, the upper die lip is adjusted by the auto-control system which divided into manual-control unit and auto control unit; the first can control the accuracy in 1mm and the latter 300um. Fits for PC, PS, PP, PE, PLA single-layer or multi-layer sheet or film with different width.
JW-P-D1
With multi-manifold design, the die can combine the materials inside to ensure the accuracy of the film. The die adopts micro-adjustable upper die lip, fixed lower lip and 45° blocking bar, which is fit for PC, PS, PP, PE, PLA multi-layer co-extrusion sheet.
For Hollow Profile Dies:
The challenge in hollow sections is balancing flow around the spider legs. Our internal manifold design ensures balanced pressure and flow velocity to all sections of the die, effectively eliminating weak weld lines and ensuring uniform physical properties throughout the profile's circumference.
For Plate Die Series
JW-B-C1
Standard coat-hanger design, the upper die lip adjusting adopts the push-pull type or push-out fine-tuning type;the lower die lip can exchange, the maximum adjusting range up to 5 mm, it is suitable for the production of PC, PMMA, GPPS, PET, single-layer or multi-layer high transparent sheet or plate.
JW-B-A2
With special coat-hanger channel design, adjustable upper die lip, changeable lower die lip and 45°blocking bar, the die adapt to ABS, PE, PP thick plate with the width below 2000mm and thickness between 3-30mm.
JW-B-A1
With special coat-hanger channel design, the die minimizes ablation of heatsensitive material. With the adjustable upper die lip, changeable lower die lip and perpendicular blocking bar, the die meets the thickness requirements of various products. The die is fit for PVC foaming board with the thickness between 2-20mm.
JW-B-B1
The die adopts a typical coat-hanger channel, and adjustable upper die lip, changeable lower lip and perpendicular blocking bar. With ST-model width-control system, the width of products can be changed without interrupting. The die is designed for ABS, PS, PP single-layer or multi-layer plate with the thickness between 0.8-8mm.
For PVC coating die series:
Adopts special channel of coat-hanger structure, adjustable upper die lip, perpendicular blocking bar, the thickness of production can be adjusted. In pairs, special pose convey belt with different thickness and size can be produced. This kind of products are widely used in mining, storage, transportation and so on.
For Waterproof Sheet Coil Die Series:
PVC, EVA, PE new type of waterproof material have high performance of anti-permeability, water-proofness, thermo-stability and cryogenic property, high strength and elongation and have the characteristic of aging resistance, are widely used for waterproof in building roof of industry and civil construction,underground, tunnel, artificial lake, etc.
The Process Stability System: Filtration & Pumping
Eliminating interruptions and fluctuations for non-stop, precision output.
For Multi-Layer Co-extrusion Distributors: Layer encapsulation isn't automatic. Our distributor design ensures clean, sharp interfaces between layers (e.g., a virgin cap over a recycled core) by managing the velocity and stability of each melt stream before they combine, preventing layer instability that leads to scrap.
For Continuous Hydraulic Screen Changers: Pressure spikes during a screen change cause gauge bands and off-spec product. Our non-stop changers utilize a dual-piston design with an overlapping seal mechanism, allowing for a seamless transition with less than 1% pressure fluctuation, enabling true 24/7 production of critical goods.
Single column hydraulic screen changer series:
● No mechanical seal structure, which can guarantee the high pressure and high temperature condition not seep materials. Effectively reduce the change screen resistance, reduce hydraulic system pressure of work.
● One-piece structure, without carrying aperture, strengthen bearing pressure, make the system load pressure is higher.
● Using High quality alloy steel,after nitriding process to extended product life span greatly.
● Integral engineering oil cylinder, a long use life.
● After optimization of rheological through cellular plate, to reduce the extrusion process fluid shear.
● Using inner heating device, for safe and energy-saving. Fully enclosed wires, for the elegant appearance.
For Melt Metering Gear Pumps: An extruder is a volumetric pump; a gear pump is a positive-displacement meter. Installing our gear pump after the extruder decouples screw surge from the die, creating a rock-stable pressure environment. This is the single most effective upgrade for improving gauge uniformity in thin-gauge films or precision fibers, often boosting yield by over 10%.
DON'T JUST REPLACE. UPGRADE.
Your most persistent production problem likely has its root in a component.Let's diagnose it together.
Primary CTA: Submit Your Component Challenge
Secondary CTA: Request a Wear & Performance Audit
