Explore our flagship high-performance plastic extrusion machineries developed with industry-leading technology.
Advanced high-capacity extrusion system tailored for producing eco-friendly stone paper from calcium carbonate powders.
View Details
Specialized solar film co-extrusion manufacturing line designed for high adhesive encapsulations.
View Details
Dual-color polypropylene extrusion technology optimized for structural packing sheets and industrial applications.
View Details
Industrial-scale polycarbonate sheet extrusion line integrated with flame-retardant compound feeders.
View Details
High-efficiency co-extrusion technology designed for producing weather-resistant exterior architectural protective films.
View Details
Orientation machinery line optimizing physical properties of polymer films via precise thermal-stretch controls.
View Details
FDA-compliant cleanroom-standard polycaprolactone sheets production machinery designed for medical orthopedic brackets.
View Details
Precision multi-layer co-extrusion technology for superior packaging barrier solutions and high-transparency CPP cast films.
View DetailsIn contemporary civil engineering, infrastructure longevity is intrinsically tied to the performance of waterproofing systems. The global transition toward large-scale underground transit systems, high-altitude reservoirs, massive hydropower projects, and deep-foundation skyscrapers has catalyzed demand for high-integrity structural joints. A critical component within this framework is the PVC waterstop, a specialized flexible profile embedded in concrete joints to block fluid ingress while accommodating multidirectional joint expansions.
The production of these specialized PVC profiles demands highly calibrated machinery. As a premier PVC water stop extrusion line manufacturer, we have witnessed a massive shift in procurement standards. Contractors and structural engineers are no longer satisfied with standard grade PVC. They require custom formulations with optimized tensile strength, elongation at break, ozone resistance, and low-temperature flexibility to withstand harsh environmental stress. To produce materials that pass rigorous testing (such as ASTM, DIN, and GB standards), the processing extrusion lines must ensure exceptional polymer compounding thermal control, precise dimensional calibration, and high-efficiency raw material dispersion.
To achieve consistent high quality in PVC waterstop production, Gwell Machinery implements a rigid technical execution roadmap built on state-of-the-art thermal engineering and precision mechanical control:
Utilizes multi-component gravimetric dosing systems to maintain exact ratios of PVC resin, plasticizers, stabilizers, and carbon black pigment, ensuring consistent batch-to-batch polymer density and physical properties.
Designed with single-screw or conical twin-screw extruders featuring optimized L/D ratios (usually 28:1 to 32:1) and specialized screw profiles to prevent PVC thermal degradation while ensuring thorough shear mixing.
Custom chrome-plated extrusion dies engineered with flow-simulation software. This design balances internal melt pressure, facilitating uniform flow velocity across complex waterstop cross-sections (with ribs and bulbs).
Constructed with dual-chamber vacuum calibration and multi-stage water spray tanks. High-grade stainless steel structures prevent deformation during fast cooling cycles, ensuring dimensional accuracy of up to ±0.2mm.
Co-Extrusion Integration: Modern building parameters increasingly demand composite waterstops, such as PVC combined with swellable rubber strips or steel reinforcing sheets. Gwell's co-extrusion technology enables co-extruding multiple materials simultaneously through a single co-extrusion die-head, achieving flawless chemical/mechanical bonding between different phases without compromising structural integrity.
Environmental variables vary vastly by region. Thus, a PVC water stop extrusion line must be agile enough to tailor profiles to local project specifications:
China Gwell Machinery is built on vertically integrated engineering power. Spanning over three major production bases in China, covering an expansive 866,000 square meters of construction area, Gwell utilizes complete local supplier networks to reduce production lead times. By machining over 85% of critical mechanical components, gearboxes, and screws in-house using high-end CNC centers, we secure absolute control over quality, tolerances, and mechanical longevity.
With more than 500 dedicated employees, including over 100 R&D engineers, Gwell generates an annual output value exceeding 1,000 sets of high-grade extrusion lines. This massive manufacturing footprint translates to significant cost-efficiency, allowing us to source premium materials and electronic systems (such as Siemens PLCs, ABB drivers, and Omron temperature controllers) at highly competitive prices. We pass these savings directly to our global customers, offering top-tier European-standard machines at highly attractive price points.
For global buyers, purchasing heavy machinery across borders involves verifying safety, standard compliance, and after-sales accessibility. All Gwell extrusion systems are designed and built to meet CE and ISO9001 certifications. Our control panels are programmed with intuitive multi-lingual interfaces (English, Spanish, Russian, Portuguese) to ease the transition for localized operators.
To support international clients, Gwell maintains a mobile team of field service engineers available for on-site layout designs, electrical hookup, mechanical debugging, extrusion trials, and local staff training. This rapid-response global network minimizes commissioning times, ensuring that your newly installed line goes from delivery to peak commercial production in a matter of days.
To assist procurement directors and plant engineers, below is the standard configuration parameters for our PVC Water Stop Extrusion Systems compared to traditional lines:
| Parameter Specification | Gwell Custom High-Quality Line | Standard Market Extrusion Line |
|---|---|---|
| Extruder Configuration | Conical Twin Screw / Specialized Single Screw (30+ L/D) | Basic Single Screw (25:1 L/D) |
| Extrusion Speed Range | 2.0 – 8.0 m/min (depending on dimensions) | 1.0 – 4.0 m/min |
| Dimensional Accuracy | ±0.15 mm to ±0.20 mm | ±0.50 mm or greater |
| PLC Control Automation | Siemens Smart PLC with closed-loop sync control | Manual analog gauge dials and speed knobs |
| Energy Savings | Patented electromagnetic heating elements (up to 30% reduction) | Standard resistance band heaters |
Explore Gwell Machinery's diverse solutions, categorized to meet precise industrial demands.
GWELL Machinery Co., Ltd., a leading manufacturer of plastic extrusion lines, proudly presents the ASA Cast Film Extrusion Line.
Learn More
TPU Laminating Film is a type of thin film material made from thermoplastic polyurethane, ideal for textile composites.
Learn More
The TPU films produced on GWELL's TPU Film Extrusion Line are versatile and suitable for medical and outdoor gear.
Learn More
PVDF solar backplane membrane production line provides alternative materials for solar panel protection.
Learn More
GWELL's WPC and SPC Extrusion Line represents a cutting-edge technological advancement in building construction.
Learn More
High production efficiency: With automated controls and optimized process parameters, Gwell delivers premium PP sheets.
Learn More
Designed for chemical resistance plates and high-temperature engineering plastics processing.
Learn More
Dedicated to manufacturing heavy industrial liners, landfill floor protection sheets, and water panels.
Learn More
High-performance transparent copolyester sheets combining high impact resistance and rigid clarity.
Learn More
Specially engineered for processing soft-touch sheets, car interiors, and elastic sealing parts.
Learn More
Designed to produce highly polished PET/PC/PMMA protective sheets with optical grade surfaces.
Learn More
GWELL's PP Two-Tone Sheet Extrusion Line is a state-of-the-art manufacturing system designed for dual-color packaging.
Learn More
Gwell provides state-of-the-art SGP Solar Film Extrusion Lines designed to meet highly robust solar standards.
Learn More
Premier solutions for PV encapsulation, ensuring strong adhesive performance on photovoltaic cells.
Learn MoreThe extrusion line is equipped with precision machinery to manufacture fiber-reinforced solar frame profiles.
Learn More
GWELL's Hydrogen Energy PPS (Polyphenylene Sulfide) Separator Extrusion Line is a specialized system for green energy.
Learn MoreChina GWELL Machinery is a high-tech enterprise dedicated to the manufacture of plastic extrusion lines for Film, Sheet, and Profile. Relying on the powerful technology and equipment of the group and an innovative spirit, GWELL commits to the development of high-tech products and the international market. "Expertise creates customers' values" has always been the company's operating philosophy.
View MoreWhy leading manufacturing companies and infrastructure projects worldwide choose Gwell Machinery.
High-quality extrusion lines engineered according to strict safety regulations and international directives.
Follow Gwell's engineering improvements, event launches, and exhibitions updates around the globe.
Gwell announces participation in international plastic exhibitions highlighting next-generation high-speed co-extrusion technology.
Read More
We successfully deployed a green thermoplastic elastomer POE sheet line providing eco-friendly alternatives to conventional synthetic leather.
Read More
With high precision, high efficiency, and high compatibility, Gwell's PVB wedge film lines fulfill automotive HUD standards.
Read More




GWELL's R&D capability, precision processing tooling, and manufacturing capacity are widely recognized in the plastic machinery sector. Reach out to request technical catalogs, customized structural layouts, or a factory quote.
Send Inquiry NowExplore additional high-grade production solutions engineered for global industrial installations.
High-efficiency thermoformable films designed for interior panel decors and packaging furniture profiles.
View Details
Advanced co-extrusion technology optimizing solar panel encapsulation and elastic barrier film properties.
View Details
Flexible polymer sheet extrusion lines optimized for light diffusion sheets, appliance liners, and sanitary parts.
View Details
Specialized wide-die sheet machinery for manufacturing heavy-duty liners, dam waterproof bases, and landfill membranes.
View Details
Integrated film co-extrusion systems optimizing adhesive interlayers for building-integrated PV glass windows.
View Details
Highly precise cast production system designed to produce top-performance ionoplast interlayers for structural safety glass.
View Details
High-speed cast film extrusion line with MDO online system producing breathable films for hygiene products.
View Details
Specialized high-temperature polymer processing line for creating polyphenylene sulfide diaphragm separator materials.
View Details