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Product Description
The PVC+ASA/PMMA Glaze Roof Tile Production Line is a fully integrated three-layer co-extrusion system engineered for manufacturing high-performance glazed roofing tiles that combine structural durability with architectural aesthetics. Unlike conventional opaque PVC roof sheets, this line produces tiles with a high-gloss, light-transmitting glaze surface — achieved through a precision A/B/C co-extrusion architecture: a rigid PVC structural base layer (Layer A), an optional micro-foamed thermal insulation core (Layer B, boosting thermal resistance by 35–45%), and an ASA or PMMA protective cap layer (Layer C, 0.08–0.20 mm) that delivers 10-year outdoor color fastness and class-leading UV resistance. Available in two conical twin-screw configurations — SJZ80/156 (300–350 kg/hr) and SJZ92/188 (400–500 kg/hr) — the line accommodates tile widths from 700 to 1,200 mm and thicknesses from 0.6 to 2.5 mm, covering five standard tile profiles across residential, commercial, and agricultural roofing applications.
| Parameter | Config 1 (Standard) | Config 2 (High-Output) |
|---|
| Model | CX-SJZ80/156 | CX-SJZ92/188 |
| Main Extruder | Conical Twin-Screw SJZ80/156 | Conical Twin-Screw SJZ92/188 |
| Co-Extruder (ASA/PMMA) | SJ45/30 Single Screw | SJ50/32 Single Screw |
| Product Width | 700–1,200 mm | 700–1,200 mm |
| Product Thickness | 0.6–2.5 mm | 0.6–2.5 mm |
| Output Capacity | 300–350 kg/hr | 400–500 kg/hr |
| Installed Power | ~160 kW | ~210 kW |
| Line Speed | 0.5–3.0 m/min | 0.8–4.5 m/min |
| ASA/PMMA Layer Thickness | 0.08–0.20 mm | 0.08–0.20 mm |
| Main Screw L/D Ratio | 24:1 | 24:1 |
| Layer | Material | Thickness Range | Function |
|---|
| Layer C (Top – Glaze Cap) | ASA or PMMA | 0.08–0.20 mm | UV shielding (≥98% blockage), high-gloss surface finish, 10-year color fastness, scratch resistance, chemical resistance |
| Layer B (Middle – Optional Foam Core) | Micro-foamed PVC | 0.2–0.8 mm | Thermal insulation (R-value ↑ 35–45%), sound dampening, weight reduction, impact absorption |
| Layer A (Bottom – Structural Base) | Rigid PVC (S-PVC) | 0.3–1.5 mm | Load-bearing structure, dimensional stability, fire retardancy (B1 per GB 8624), nail-holding strength |
Note: The micro-foamed middle layer (Layer B) is optional. For non-insulated applications, a solid PVC middle layer is used instead, reducing material cost while maintaining structural integrity.
| # | Equipment | Qty | Function |
|---|
| 1 | Auto Spiral Feeding Machine | 2 | Pneumatic resin conveying with loss-in-weight dosing |
| 2 | Conical Twin-Screw Extruder (Main) | 1 | PVC plasticizing, degassing, and melt homogenization |
| 3 | Single Screw Co-Extruder (ASA/PMMA) | 1 | ASA/PMMA cap layer melt delivery, precision temperature control |
| 4 | Auto Screen Changer | 1 | Continuous melt filtration, dual-station hydraulic switching |
| 5 | Melt Gear Pump (Main) | 1 | Precision melt metering, ±0.5% flow consistency |
| 6 | Melt Gear Pump (Co-Ex) | 1 | ASA/PMMA cap layer precision metering |
| 7 | Co-Extrusion Feedblock Die Head & Distributor | 1 | Three-layer A/B/C melt confluence with 5-zone thermal control |
| 8 | 3-Roller Calender | 1 | Sheet polishing, embossing, and gauge calibration (roller gap ±0.02 mm) |
| 9 | Cooling Bracket / Conditioning Table | 1 | Multi-zone air/water hybrid cooling |
| 10 | Oil Temperature Controller | 1 | Roller thermal regulation, ±1°C stability |
| 11 | Roofing Sheet Downstream Line | 1 | Haul-off, edge trim, transverse cutting, automatic stacking |
| 12 | Conveyor | 1 | Finished tile transfer to packaging station |
| 13 | Extra Moulds (Shaping Rollers, Cutters, Haul-Off Rollers) | 1 set | Quick-change tooling for 5 tile profiles |
| # | Equipment | Qty | Function |
|---|
| 1 | Hopper Dryer & Auto Feeder | 2 sets | PVC resin dehumidification (dew point ≤ −40°C), automatic hopper loading |
| 2 | High-Speed Heating Mixer | 2 sets | PVC dry-blend compounding: hot mixing (110–130°C) + cooling |
| 3 | Vacuum Conveyor Loader | 2 | Material transfer from mixer to extruder hoppers |
| 4 | SML-Series Chiller | 1 | Closed-loop cooling water for rollers and barrel zones |
| 5 | Pelletizer / Edge Trim Recycling | 1 | In-line edge trim grinding and re-pelletizing (closed-loop recycling) |
| 6 | Online Laser Thickness Gauge | 1 | Real-time thickness monitoring, ±2 μm accuracy, SPC data logging |
For additional supporting equipment options, see Auxiliary Machines.
| Profile Type | Typical Width | Application |
|---|
| Large Wave (Trapezoidal) | 900–1,200 mm | Industrial warehouses, factories, large-span carports |
| Small Wave | 700–1,050 mm | Residential roofing, villas, garden sheds |
| Trapezoidal | 700–1,200 mm | Agricultural buildings, trading markets, livestock sheds |
| Small Triangle | 700–900 mm | Balconies, awnings, decorative canopies |
| Large Triangle | 900–1,200 mm | Stadiums, exhibition halls, commercial complexes |
High-Gloss Glazed Surface Finish: The ASA/PMMA cap layer, polished by a precision 3-roller calender with mirror-finish rollers, delivers a permanent glossy surface indistinguishable from ceramic glazed tiles at a fraction of the weight. No post-coating required.
Light Transmission (PMMA Option): When PMMA is selected as the cap layer material, tiles achieve 85–92% visible light transmission, enabling naturally lit interiors for greenhouses, atriums, and skylight roofing without compromising UV protection.
10-Year Outdoor Color Fastness: ASA cap layer contains UV-stabilized pigments co-extruded into the polymer matrix — not surface-coated — ensuring zero chalking, fading, or delamination after 10+ years of equatorial sun exposure (ASTM G155, ΔE ≤ 3.0 after 8,000 hrs Xenon arc).
Thermal Insulation (B1 Fire Rating): The micro-foamed PVC core layer (Layer B) increases thermal resistance by 35–45% compared to solid PVC sheets. The tile achieves B1 fire retardant classification per GB 8624, suitable for public buildings with stringent fire codes.
Impact Resistance: The multi-layer composite structure absorbs impact energy across material interfaces. Impact strength exceeds 15 kJ/m² (Charpy, notched), making the tiles hail-resistant and safe for regions with severe weather.
Sound Insulation: The foam core layer provides a weighted sound reduction index (Rw) of 22–26 dB, significantly quieter under rain impact than metal roofing sheets.
Wide Service Temperature Range: −40°C to +120°C continuous service, with no cold embrittlement or heat-induced sagging, validated across installations from Northern Europe to the Middle East.
Lightweight Installation: At 4.5–6.5 kg/m², the tiles are 70–80% lighter than ceramic tiles of equivalent coverage. This translates to reduced structural steel requirements, lower transport costs, and faster on-site installation — typically 80–100 m² per 2-person crew per day.
Quick Profile Changeover: Interchangeable shaping rollers, cutting dies, and haul-off profiles enable mold change in under 45 minutes, supporting small-batch production runs across all five tile profiles on the same line.
Step 1: Raw Material Drying & Conveying → PVC resin + additives dried to ≤0.1% moisture in hopper dryers, ASA/PMMA pellets dried at 80°C for 2–4 hrs Step 2: High-Speed Hot/Cold Mixing → PVC compound mixed in heating mixer at 110–130°C, cooled to 40°C, pneumatically conveyed to extruder hoppers Step 3: Three-Layer Co-Extrusion → Main conical twin-screw plasticizes PVC (170–195°C barrel profile), co-extruder delivers ASA/PMMA melt (210–240°C); melt pumps synchronize at ±0.5% flow accuracy into feedblock die Step 4: Calendering & Embossing → Melt exits die at 185–205°C, passes through 3-roller calender (gap ±0.02 mm), surface embossed and polished to mirror gloss Step 5: Cooling, Haul-Off & Cutting → Sheet conditioned through multi-zone cooling bracket, hauled at synchronized speed, edge-trimmed, cut to length by servo-driven shear Step 6: Stacking & Packaging → Automatic counting, stacking conveyor, stretch-wrapped pallets, ready for warehouse or container loading
The line produces tiles with a tri-layer cross-section: Layer A (rigid PVC, 0.3–1.5 mm) provides structural load-bearing capacity; Layer B (micro-foamed PVC, 0.2–0.8 mm, optional) adds thermal insulation with a 35–45% R-value improvement; and Layer C (ASA or PMMA, 0.08–0.20 mm) forms the glaze cap. The ASA cap layer contains co-extruded UV-stabilized pigments — not surface-applied paint — which means the color is integral to the polymer. In accelerated weathering per ASTM G155 (Xenon arc, 8,000 hrs), the ΔE color shift remains ≤ 3.0, equivalent to 10+ years of equatorial sun exposure with no chalking, peeling, or gloss loss. For greenhouses requiring light transmission, PMMA provides 85–92% visible light transmittance while blocking ≥98% of UV radiation below 380 nm.
| Property | ASA | PMMA | PC (Competitor Reference) |
|---|
| UV Resistance | Excellent (inherently UV-stable) | Good (UV-stabilized grades) | Poor (requires heavy co-stabilizer loading) |
| Gloss Retention (10 yr) | ≥90% | ≥85% | 50–60% (yellowing) |
| Light Transmission | Opaque | 85–92% | 80–88% |
| Impact Strength | 12–18 kJ/m² | 8–12 kJ/m² | 60–80 kJ/m² (polycarbonate) |
| Chemical Resistance | Excellent (acids, alkalis, road salt) | Moderate | Poor (stress cracking with solvents) |
| Cost Index (relative) | 1.0 (baseline) | 1.3–1.5× | 1.8–2.2× |
Recommendation: Choose ASA for most architectural and industrial roofing — it offers the best balance of outdoor durability, color fastness, and cost. Select PMMA when light transmission is a design requirement (greenhouses, skylights). PC excels in impact resistance but suffers from UV yellowing and stress cracking in chemical environments, making it less suitable for long-term outdoor glazed roofing without expensive co-extruded UV cap layers — which is precisely the three-layer architecture our line delivers with ASA/PMMA at a lower raw material cost.
Based on a standard 930 mm wide, 1.5 mm thick trapezoidal tile (density 1.42 g/cm³), the calculation is:
Config 1 (SJZ80/156, 300 kg/hr): Net output ≈ 280 kg/hr (after edge trim). Tile weight ≈ 1.98 kg/linear meter. Line speed ≈ 2.36 m/min → 141 m²/hr → ~1,130 m² per 8-hour shift.
Config 2 (SJZ92/188, 450 kg/hr): Net output ≈ 420 kg/hr. Line speed ≈ 3.54 m/min → 212 m²/hr → ~1,700 m² per 8-hour shift.
For thinner tiles (0.8 mm, small wave profile, 880 mm effective width), Config 2 can exceed 2,800 m²/shift. Actual output varies with tile thickness, profile, and ASA/PMMA layer specifications. We recommend budgeting 85% of theoretical maximum for OEE (Overall Equipment Effectiveness) calculations.
The line is designed for multi-profile production with quick-change tooling. A complete profile changeover — including shaping roller swap, cutting die replacement, haul-off roller adjustment, and die lip gap recalibration — takes 35–45 minutes with a 2-person crew. The co-extrusion feedblock die head is engineered with a fixed body and interchangeable lip inserts, so the main die assembly does not need to be removed. All five standard profiles (large wave, small wave, trapezoidal, small triangle, large triangle) are supported within the 700–1,200 mm width range. Width changeover between, for example, 880 mm small wave and 1,050 mm trapezoidal tiles, is handled by adjusting the edge trim slitter position and haul-off width guides — approximately 15 minutes additional setup. We supply one set of standard tooling with the line; additional custom profiles (Spanish S-tile, Roman tile, interlocking shingle) can be quoted separately based on sample drawings.
The ASA/PMMA cap layer thickness must be maintained within ±8% of target across the full tile width to guarantee uniform UV protection and color consistency. Three precision control mechanisms enable this:
Melt Gear Pump Synchronization: The main and co-extrusion melt pumps are electronically geared with ±0.5% flow synchronization accuracy — any deviation triggers automatic PID correction within 200 ms. This prevents the common defect of cap layer thinning near tile edges.
Die Lip Gap Calibration: The feedblock die head features independent lip gap adjustment bolts spaced every 25 mm across the width, with dial indicators reading to ±0.02 mm. Operators perform a gauge calibration at the start of each production run using feeler gauges and a step-block reference.
Online Laser Thickness Gauge: A traversing laser micrometer (Class 2, 655 nm) scans the full tile width at 200 Hz, providing real-time ±2 μm thickness mapping. The SPC software logs minimum/maximum/mean thickness per linear meter and triggers an audible alarm if any measurement falls outside the ±8% control band. Out-of-spec sections are automatically flagged for rejection by the downstream cut-to-length controller.
1. PVC Processing Expertise Since 2005 With nearly two decades of specialization in PVC extrusion — from PVC pipe lines with automatic coilers to roof tile extrusion systems — we understand PVC rheology, thermal degradation windows, and formulation chemistry at a depth that generalist machinery suppliers cannot match. Our conical twin-screw extruders are purpose-designed for PVC's shear sensitivity, eliminating the degradation risks inherent in retrofitting commodity single-screw machines for PVC processing.
2. End-to-End Turnkey Delivery We deliver a complete, pre-commissioned production cell — from high-speed mixers and hopper dryers through to edge trim recycling and automatic stacking. Our engineering team handles factory layout design, utility connection planning, on-site installation supervision, and operator training. The line is shipped with a start-up tool kit, 6-month spare parts package, and a PVC formulation starter recipe tuned for your local raw material grades.
3. Verified by Real-World Installations Our PVC roof tile extrusion lines are operating in 15+ countries across Southeast Asia, Africa, the Middle East, and South America — producing over 8 million square meters of roofing tiles annually. Customer references and line audit visits can be arranged upon request.
4. Responsive After-Sales Support We maintain a dedicated after-sales team reachable via our contact channels with ≤ 4-hour initial response for critical production issues. Remote diagnostics via video call are available immediately; on-site service engineers can be dispatched within 5 business days for major interventions. Spare parts for all auxiliary equipment are stocked in our Shanghai warehouse, with DHL/FedEx air freight for urgent replacements.
Learn more about our full capabilities and industry-specific solutions on the Solutions page and About Us. For the latest product updates and case studies, visit our News section.
Step 1 — Define Your Requirements Tell us your target tile profile, width, thickness, output expectation (kg/hr or m²/day), and preferred cap layer material (ASA or PMMA). Include your local climate data and building code requirements if available.
Step 2 — Receive Customized Quotation Our engineering team prepares a tailored proposal with line configuration, 3D layout drawing, technical datasheet, delivery timeline, and FOB/CIF pricing within 3 business days.
Step 3 — Review & Approve We arrange a video call to walk through the proposal, discuss any customization needs, and finalize the commercial terms. Factory visit and trial-run witnessing are available at our Shanghai facility.
Step 4 — Production & Delivery Upon order confirmation, manufacturing commences with weekly progress updates and photos. Standard lead time is 45–60 days. We handle export packaging, container loading, and shipping documentation.
Email your inquiry to: ceo@cxsljx.com
