PVC Door Sheet Decorative Film Extruder Extrusion Line

Jwell's PVC door sheet decorative extrusion line is designed to produce door skins and decorative sheets with widths of 1220–2000mm and thicknesses of 0.2–3.0mm. The SJZ80/156 model has a maximum output of 350 kg/h, while the SJZ92/188 model can reach 550 kg/h. The equipment features high output, low energy consumption, stable extrusion, and precise width/thickness control, making it an ideal choice for manufacturing interior doors and cabinet panels.

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Application

Our PVC door sheet decorative extrusion line is specifically designed to produce high-quality PVC sheets for interior doors, cabinet doors, wall panels, and decorative surfaces. Two models meet different market demands:
SJZ80/156-1500 (sheet width up to 1220mm, thickness 0.2–3.0mm) – Suitable for lightweight decorative door skins, laminated films, and thin PVC boards. Typical applications: wardrobe door surfaces, interior door skins, PVC edge-banding sheets. Real case: A Malaysian door manufacturer uses this line to produce 1.2mm embossed PVC door skins at 320 kg/h, reducing costs by 15% compared to imported alternatives.
SJZ92/188-2200 (sheet width up to 2000mm, thickness 1.0–3.0mm) – Designed for thicker, wider door panels, including commercial door leaves, fire door surfaces, and high-impact decorative sheets. Real case: A Turkish factory installed this line to produce 2000mm wide PVC door sheets for hospital doors, achieving a maximum output of 530 kg/h with consistent flatness.

Advantages

Feature	Advantage
High output with low energy consumption	SJZ80/156: 350 kg/h @ 75kW; SJZ92/188: 550 kg/h @ 110kW. Among the lowest energy consumption per kg in the industry (approx. 0.21–0.22 kWh/kg).
Wide thickness range	0.2–3.0mm (SJZ80) and 1.0–3.0mm (SJZ92) – One line can produce both thin lamination films and thick structural door skins.
Stable twin-screw extrusion	Conical twin-screw design ensures better plasticization, lower melt temperature, and less degradation – critical for PVC with calcium carbonate fillers.
Precise width control	1220mm and 2000mm widths conform to standard door sizes (e.g., metric door leaves 900/1200mm, or US standard 36"/48" after trimming).
User-friendly operation	Siemens PLC control, automatic temperature zones, and die lip gap adjustment – reduces operator skill requirements.

Process

We implement a 4-stage quality assurance system to ensure every sheet meets door industry standards (e.g., ASTM D4226, EN 13245):
Stage 1 – Incoming Material Inspection
PVC resin (K65–K67) – viscosity and impurity content testing
CPE impact modifier, titanium dioxide, calcium carbonate – particle size distribution analysis
Stage 2 – Online Monitoring (during extrusion)
Melt pressure and temperature sensors at the die – alarm triggers when deviation >3%
Thickness gauge (online ultrasonic or beta ray) – closed-loop control with automatic die lip adjustment. Tolerance: ±0.02mm for 0.5mm sheet
Laser edge sensor for width detection – ensures 1220mm or 2000mm ±2mm
Stage 3 – Sampling and Offline Testing
Every 500 kg of production, cut samples and test:

Test Item	Method	Acceptance Criterion
Tensile strength (MD/TD)	ASTM D638	≥45 MPa
Impact resistance (dart drop)	ASTM D4226	500g × 500mm no cracking
Gloss uniformity	60° gloss meter	±5 units across full width
Heat shrinkage (80°C, 1h)	Oven test	≤1.5%
Color difference (ΔE)	Spectrophotometer	ΔE < 1.0 vs. standard plate

Stage 4 – Simulated Door Fabrication Test
Press a full door skin (embossed or laminated) onto a wooden door frame and perform:
Edge peel test (peel strength ≥3.5 N/mm)
Accelerated aging (300h UV lamp) – color change ΔE ≤2.0
Real case: For a Bangladeshi customer, our quality system detected melt temperature fluctuations caused by worn screw segments. Production stopped for 2 hours to replace parts, avoiding 8 tons of non-conforming sheets (saving approx. USD 6,000).

Parameters

Model	SJZ80/156-1500	SJZ92/188-2200
Extruder specification	SJZ80/156	SJZ92/188
Products width (mm)	1220	2000
Products thickness (mm)	0.2-3.0	1.0-3.0
Main motor power (kw)	75	110
Capacity (Max.) (kg/h)	350	550

Q1: Can the SJZ80/156 line produce sheets thicker than 3.0mm?
A: No. The screw design and die land length are optimized for 0.2–3.0mm. For thicknesses above 3.0mm, we recommend our SJZ92/188 model (max 3.0mm) or a dedicated single-screw line for >4mm. However, many customers use the SJZ80 to produce 3.0mm door skins – running stably at up to 340 kg/h.

Q2: What is the actual maximum output of the SJZ92/188 for 2.0mm thick, 2000mm wide sheet?
A: Verified real data: using standard formulation (100 phr PVC + 8 phr CPE + 5 phr TiO₂ + 25 phr CaCO₃) – 510–530 kg/h. At 2.5mm thickness, output drops to about 480 kg/h. The theoretical maximum of 550 kg/h is achievable only at 1.0mm thickness.

Q3: How often should the twin screws be replaced?
A: With good lubrication and corrosion-resistant PVC formulations (not excessive regrind), screw life is 8,000–10,000 operating hours. One Ukrainian customer exceeded 12,000 hours using a tungsten carbide coating option. We offer hardfacing repair services that extend life by 40%.

Q4: Does the line support co-extrusion of a wear-resistant layer or wood grain layer?
A: Yes. An optional co-extrusion die (A/B or A/B/A configuration) can be added. For example, co-extrude a 0.1mm clear wear-resistant layer on a 1.9mm colored substrate – total thickness 2.0mm. We supplied this configuration to a Vietnamese door factory for scratch-resistant surfaces.

Q5: How to deal with width shrinkage after calendering/cooling?
A: Our puller and cooling rack are designed with over-pull ratio adjustment. For a 2000mm die opening, final sheet width after cooling is typically 1990–1995mm. We recommend ordering a die 1.5% wider than target width; the PLC will automatically correct via puller speed. Field data shows shrinkage can be controlled within 0.3%.

Q6: What are the power requirements for installation?
A: SJZ80/156 line: 75kW main motor + 25kW auxiliaries (heating, cooling pumps, puller) → total approx. 100kW. SJZ92/188: 110kW + 35kW aux → approx. 145kW. Uses 380V/50Hz or 460V/60Hz (adjustable). One Brazilian customer runs an SJZ92 on 440V/60Hz with a transformer – no issues.