| pvc-lamination-panel-extrusion-line.webp | Jwell PVC marble sheet production line — complete production line with embossing roller system | 主图 |
| pvc-lamination-panel-extrusion-line(1).webp | Jwell PVC marble sheet line — conical twin-screw extruder and embossing calendar detail | 整线安装 |
The PVC Marble Sheet Extrusion Line is part of JWELL’s complete extrusion portfolio. Customers evaluating this PVC Marble Sheet Extrusion Line also frequently request our PVC Soft Rigid Sheet Extrusion Line | Jwell Machinery and SPC Flooring Production Line | Jwell Machinery, which share the same proven screw, die and control platforms. For layout drawings, pricing and lead times, contact JWELL Machinery directly.
| # | Item | Key Point |
| 1 | 🌀 Marble Texture via Embossing Roller | precision-engraved stone pattern transferred directly to PVC sheet surface |
| 2 | ⚡ Conical Twin-Screw Extruder | counter-rotating, optimized for PVC + CaCO3 filled compounds |
| 3 | 🎯 200-500 kg/h Output | scalable capacity for decorative panel production |
| 4 | 🔄 Integrated Protective Film Lamination | PE film applied inline to preserve marble texture |
| 5 | 🔧 Complete Production Chain | extruder -> T-die -> embossing roller -> cooling -> film lamination -> cutter |
| 6 | ✅ Interchangeable Pattern Sleeves | Carrara, Calacatta, Nero Marquina, custom designs, 2-3 hour changeover |
| 7 | ♻️ Siemens PLC Control | recipe management for pattern/compound changeover, 50+ parameter logging |
| 8 | 🌍 CE Certified, ISO 9001 | 29 years, 8 bases, 3500 employees, 25000+ lines worldwide since 1997 |
The Jwell PVC marble sheet production line is built around a conical twin-screw extruder — the industry-standard extrusion technology for PVC processing. The counter-rotating screw geometry creates a positive displacement pumping action that provides controlled, low-shear melting of the highly filled PVC compound (typically 40-60% CaCO3 filler content by weight). Single-screw extruders cannot match this performance: they rely on friction-to-viscous drag transition for melting, which generates excessive shear heating in CaCO3-filled compounds and leads to thermal degradation hotspots.
The conical twin-screw geometry addresses these requirements through its counter-rotating, intermeshing screw design that functions as a positive displacement pump. Material moves forward in discrete, enclosed volumes between screw flights — minimizing shear heating, maximizing throughput stability, and ensuring thorough wetting of filler particles by the PVC melt.
The screws are manufactured from nitrided steel with surface hardness HV>=740 on the flight lands and HV>=940 on the barrel interior. The nitriding treatment creates a 0.5-0.7mm deep case that resists abrasive wear from CaCO3 filler while maintaining the substrate toughness required to survive accidental metal tramp. Screw and barrel lifetime in CaCO3-filled PVC service typically exceeds 5 years before reconditioning is needed.
A gravimetric dosing system feeds the PVC compound — typically a dry blend of PVC resin, CaCO3, stabilizer, lubricant, and marble-color masterbatch — with batch accuracy of +/-0.5%, ensuring consistent compound composition from the first kilogram of sheet to the last.
配图建议: 锥形双螺杆挤出机主机近景，标注螺杆型号和CaCO3喂料系统
The embossing roller is the defining technology of the PVC marble sheet production line — it transforms a flat, uniform PVC sheet into a decorative product. Positioned immediately after the T-die and integrated into the 3-roller calendar stack, the embossing roller permanently imprints a stone pattern onto the still-warm PVC sheet surface (130-160°C at the embossing nip).
The embossing roller surface is engraved with a stone pattern derived from a high-resolution scan of natural marble — capturing the vein patterns, crystal structure details, and natural color variation boundaries that the human eye uses to identify “real marble.” The engraving process resolves features down to 0.1mm in size and pattern depths of 0.05-0.15mm, creating a surface texture with both visual fidelity and tactile authenticity.
The embossing roller is maintained at 40-70°C by an internal temperature control circuit. This temperature range is critical: too hot, and the PVC sheet surface becomes too fluid, filling the engraving valleys and losing texture definition; too cold, and the sheet surface does not flow into the engraving depth, producing shallow, washed-out texture. The +/-1°C temperature uniformity across the full roller face width ensures consistent texture quality edge-to-edge in sheet widths up to 1,560mm.
Jwell offers standard marble pattern sleeves (Carrara white, Calacatta gold, Emperador brown, Nero Marquina black, travertine beige) and custom-engineered sleeves from customer-provided marble samples. Sleeve changeover is completed in 2-3 hours including PLC recipe changeover for the new pattern’s optimized process parameters.
配图建议: 压花辊筒近景，展示大理石纹理雕刻表面
The embossed marble texture on PVC decorative sheet is a premium surface feature that is extraordinarily vulnerable to scratching during cutting, stacking, transport, and on-site installation. A single scratch across the marble vein pattern renders the sheet unusable for premium wall panel or furniture applications.
Jwell integrates a protective film lamination unit directly into the production line, positioned after the cooling bracket and before the cutter. This strategic position applies the PE protective film while the sheet surface retains sufficient residual heat (40-50°C) to bond the film without adhesive — eliminating the risk of adhesive residue on the marble texture after film removal at the installation site.
The lamination unit accommodates film widths matching the sheet width (up to 1,560 mm) and applies film at line speed without creating tension disturbances. Automatic edge alignment ensures full coverage with zero exposed marble surface. Splice detection alerts operators before a film roll change is needed, preventing unprotected sheet from reaching the cutter.
For converters producing marble sheet for premium furniture and wall panel applications, the protective film is not an optional accessory but a production requirement. Jwell’s integrated lamination unit turns this requirement into a seamless, automated process step.
配图建议: 覆膜单元近景，展示保护膜贴合过程
The T-die is the component that distributes the PVC melt from the cylindrical extruder output into a flat, uniform sheet web across the full production width. For decorative PVC marble sheet, die performance directly determines the visual quality of the final product — thickness variations as small as +/-5% create visible marble pattern distortion.
Jwell uses a coat-hanger manifold T-die manufactured from high-quality mold steel with a chrome-plated flow channel. The coat-hanger manifold geometry is computationally optimized to deliver uniform melt distribution across the full die width with minimum residence time — important for heat-sensitive PVC where prolonged residence at 180°C can initiate thermal degradation.
For automated thickness control, the line can be equipped with an online thickness gauge (beta or laser) that continuously measures the sheet profile and sends feedback signals to an automatic T-die, where individual thermal bolts adjust the die lip opening in real time. Combined with the servo-driven roll gap adjustment (0.01mm precision), this system maintains thickness tolerance within +/-3% standard, or +/-1.5% with the automated option.
The die lip surface is polished to Ra 0.05micrometer to prevent die lines — longitudinal streaks in the sheet surface caused by roughness or buildup on the die lip edge. For marble-textured decorative sheet, die lines are particularly visible because the stone pattern makes any linear surface defect stand out against the organic, non-linear marble texture.
配图建议: T-die模头近景，展示衣架形流道和柔性模唇调节系统
| Parameter | Specification |
| Extruder Type | Conical twin-screw, counter-rotating, intermeshing |
| Model Options | 80/156 (small-end 80mm / large-end 156mm) / 92/188 |
| Screw Material | Nitrided steel, HV >=740 (flight), HV >=940 (barrel) |
| Barrel Liner | Bimetallic, Xaloy X-800 equivalent, 58-62 HRC |
| Screw Speed | 5-35 rpm (PVC-optimized low-speed range) |
| Drive Motor | AC, variable frequency, 55-90 kW (model dependent) |
| Heating Zones | 8-12 zones, independent PID control |
| Cooling Type | Forced air (standard) / water mist (optional) |
| Feeding System | Gravimetric dosing for PVC dry blend / pellets |
| Parameter | Specification |
| Die Type | Coat-hanger manifold, flexible-lip |
| Die Material | High-quality mold steel, chrome-plated flow channel |
| Die Lip Surface Roughness | Ra 0.05 micrometers |
| Calendar Type | 3-roller vertical or inclined |
| Roll Diameter | 300-400 mm |
| Embossing Roller | Chrome-plated, precision-engraved stone pattern |
| Pattern Depth | 0.05 – 0.15 mm |
| Pattern Resolution | Down to 0.1 mm feature size |
| Embossing Roller Temperature | 40 – 70°C, +/-1°C across face width |
| Other Rollers | Chrome-plated smooth, Ra <=0.02 micrometers |
| Roll Gap Adjustment | Servo-driven, 0.01mm precision |
| Sleeve Changeover | 2-3 hours including PLC recipe changeover |
| Parameter | Specification |
| Material | PVC + CaCO3 filler (40-60%) + stabilizer + marble-color masterbatch |
| Output Capacity | 200 – 500 kg/h (model & formulation dependent) |
| Sheet Thickness | 0.5 – 3.0 mm |
| Sheet Width | 900 – 1,560 mm |
| Thickness Tolerance | +/-3% (with optional online thickness gauge) |
| Line Speed | 2 – 12 m/min (thickness & formulation dependent) |
| Downstream Equipment | Extruder -> T-die -> Embossing roller -> Cooling -> Protective film lamination -> Cutter -> Stacker |
| Protective Film | PE film, heat-bonded, auto edge alignment, splice detection |
| Control System | Siemens S7-1200 PLC + 10″ HMI |
| Total Installed Power | 120 – 220 kW |
| Power Supply | 380V/50Hz (440V/60Hz adaptable) |
| Certifications | CE, ISO 9001 |
| Pattern Name | Description / Base Color |
| Carrara White | Fine gray veining on white background / White |
| Calacatta Gold | Bold gold and gray veining on white / White |
| Nero Marquina | White veining on black background / Black/Gray |
| Emperador Brown | Light veining on chocolate brown / Brown |
| Travertine Beige | Linear texture on warm beige / Beige |
| Custom | Customer-provided marble sample or digital file / Custom |
PVC marble sheet at 1.0-3.0 mm thickness is the leading material for decorative wall cladding in residential interiors, hotel lobbies, restaurant dining rooms, retail spaces, and corporate offices. It delivers the luxury stone aesthetic at a fraction of natural marble’s cost and installation complexity — mounted with adhesive or clip systems on standard drywall substrates without the structural reinforcement natural stone panels require.
The Jwell PVC marble sheet line produces wall-panel-grade sheet with the consistent embossing depth and thickness uniformity that large-format wall installations demand. In premium wall panel applications, panel-to-panel marble pattern continuity is the quality metric that separates professional-grade sheet from commodity material. The precision-engraved embossing roller and repeatable process conditions (temperature, pressure, line speed) maintained by the Siemens PLC ensure that every panel from the same production batch carries the identical marble pattern with zero batch-to-batch variation.
The integrated protective film lamination ensures that wall panels arrive at the installation site with pristine marble texture — critical for feature walls and high-visibility retail environments where surface quality sells the space.
PVC marble sheet at 0.5-2.0 mm thickness is increasingly used as the surface material for kitchen cabinet doors, wardrobe fronts, bathroom vanity tops, and modular office furniture. The thin sheet is laminated to a substrate (MDF, particle board, or plywood) using PVA or PUR adhesive, creating a finished furniture component with marble appearance at less than one-tenth the weight and cost of natural stone.
For furniture applications, the marble texture quality is the primary differentiator between premium and budget products. The Jwell embossing roller’s 0.1mm feature resolution and 0.05-0.15mm pattern depth create texture detail that survives the lamination process and end-user handling — distinguishing Jwell-produced marble sheet from the shallow, easily-worn texture of low-cost calendar lines. In furniture showrooms, customers touch cabinet doors — the tactile quality of the marble texture is as important as the visual appearance.
The line’s consistent thickness control (+/-3% with optional gauge) is critical for furniture applications because the thin PVC sheet is laminated to substrate materials. Thickness variation causes uneven adhesive distribution and visible surface waves in the finished furniture panel.
The marble texture is created by an embossing roller positioned immediately after the T-die in the 3-roller calendar stack. The embossing roller has a precision-engraved stone pattern surface (0.05-0.15mm depth, down to 0.1mm feature resolution) derived from high-resolution scans of natural marble. As the still-warm PVC sheet passes through the embossing nip, the surface is permanently imprinted with the stone pattern. The embossing roller is maintained at 40-70°C by an internal temperature control circuit to ensure consistent, defect-free texture transfer.
The line produces PVC marble sheet from 0.5 to 3.0 mm thickness with sheet width from 900 to 1,560 mm. This thickness range covers the primary decorative panel applications: wall panels at 1.0-3.0mm, furniture surfaces at 0.5-2.0mm, and bathroom/wet-area panels at 2.0-3.0mm. Thickness tolerance is ±3% standard, improving to ±1.5% with the optional online thickness gauge and closed-loop die lip control.
The complete production process comprises six synchronized stages: (1) Conical twin-screw extruder melts and homogenizes PVC compound (resin + CaCO3 + stabilizer + marble-color masterbatch) at 160-190°C; (2) T-die distributes melt into a uniform flat sheet web; (3) 3-roller embossing calendar calibrates thickness and transfers marble texture via the precision-engraved embossing roller; (4) Cooling bracket brings sheet to ambient temperature under controlled conditions; (5) Protective film lamination unit applies PE film to the embossed surface; (6) Cross-cut saw produces flat panels at programmable lengths (±1mm accuracy). All stages are synchronized through the main PLC.
Yes. The embossing roller accepts interchangeable surface sleeves with different stone patterns. Jwell offers standard marble pattern sleeves: Carrara White, Calacatta Gold, Nero Marquina, Emperador Brown, and Travertine Beige. Custom patterns can be engineered from a customer-provided marble sample or digital file. Sleeve changeover is completed in 2-3 hours including PLC recipe changeover for the new pattern’s optimized process parameters.
Yes. The protective film lamination unit is integrated into the production line as standard equipment, positioned after the cooling bracket and before the cutter. PE protective film is applied to the embossed marble surface, bonded by residual sheet heat without adhesive. The unit accommodates film widths matching sheet width (up to 1,560mm), applies film at line speed without tension disturbances, and includes automatic edge alignment and splice detection to alert operators before a film roll change is needed.
Extruder Type: Conical twin-screw, vented; Screw Material: 38CrMoAlA, nitrided, bimetallic optional; Screw Structure: Conical twin, designed for PVC + wood flour + CaCO₃ + foaming agent; L/D Ratio: Optimized for controlled foaming zone
Screw Diameter: Φ 80 mm / Φ 92 mm / Φ 110 mm / Φ 180 mm; Output (24h, SPC): 6-8 T / 12-18 T / 25-32 T / 70-100 T; Line Speed at 4 mm: 0.4-0.6 m/min / 0.8-1.3 m/min / 1.8-2.4 m/min / 5-9 m/min; Screw Material: 38CrMoAlA, nitrided, bimetallic optional / ← Same / ← Same / ← Same
Applicable Material: EVA copolymer (VA content 14-28%), EVA + LDPE blends, EVA + carbon black; Sheet Width: 2,000 – 4,000 mm; Sheet Thickness: 1.0 – 3.0 mm; Production Capacity: 300 – 600 kg/h
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Jwell has manufactured PET sheet extrusion equipment since 2005, accumulating field data from over 400 installed PET lines worldwide. Each new machine generation incorporates refinements validated across hundreds of real production environments — not just lab prototypes.
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Our Changzhou facility operates a full production-scale PET line for customer trials. Bring your raw materials and target specifications — we run your recipe before you commit. The line delivered to your factory is a proven configuration, eliminating startup risk.
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Factory-trained Jwell engineers based in Brazil, Spain, Mexico, and Shanghai travel to customer sites for installation and operator training. Remote diagnostic support via WeChat/WhatsApp responds within 2 hours. Critical spares ship from Shanghai within 48 hours.
Jwell Machinery Co., Ltd sets up in 1997 , we are large manufacturer of plastic extrusion machinery in China, our headoffice was located in Shanghai.
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