PVC Transparent Sheet Rigid Sheet Extrusion Line

This extrusion line series is specifically designed for continuous production of high-quality PVC transparent sheets and rigid sheets. The two models cover different width and output requirements:
SJZ80/156-1500: Sheet width 1220 mm, thickness range 0.2–3.0 mm, main motor power 75 kW, designed output 350 kg/h. Suitable for ultra-thin transparent films of 0.2–0.5 mm and medium-thickness rigid sheets.
SJZ92/188-2300: Sheet width 2000 mm, thickness range 1.0–3.0 mm, main motor power 110 kW, designed output 550 kg/h. Designed for wide, high-volume thick sheet production.

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Application

Our PVC sheet extrusion lines are designed for high-output production of transparent and rigid PVC sheets, widely used in:
Pharmaceutical & Food Packaging – Transparent blister packaging (0.2–0.5 mm thickness on SJZ80/156-1500)
Construction & Decoration – Protective films, wall panels, dustproof panels (1.0–3.0 mm thickness on SJZ92/188-2300)
Printing & Advertising – Printable rigid sheets for signs, POP displays (width 1220–2000 mm)
General Industry – Liners, partitions, chemical-resistant panels
Real case: A European packaging company uses the SJZ80/156-1500 to produce 0.3 mm transparent blister film at 320–340 kg/h, achieving 1220 mm width with thickness tolerance < ±0.02 mm.

Advantages

High output, low energy consumption
SJZ80/156-1500 – 75 kW main motor → 350 kg/h designed output
*Energy efficiency: approx. 4.7 kWh/100 kg*
SJZ92/188-2300 – 110 kW main motor → 550 kg/h designed output
Ideal for mass production of 1.0–3.0 mm thick sheets

Wide and precise thickness range
From 0.2 mm (ultra-thin transparent film) to 3.0 mm (rigid structural sheet)
Automatic thickness control system ensures uniform thickness across full width (1220 mm / 2000 mm)

Conical twin-screw technology
Better plasticizing than single screw – fewer fish eyes, better transparency
Stable melt pressure – reduces gel points in transparent sheets

Robust construction for continuous operation
Hardened screws and barrels – wear-resistant, suitable for recycled materials or calcium carbonate-filled formulations
European-standard gearbox and temperature control zones

Process

We follow a 4-stage quality control protocol to ensure every sheet meets international standards (e.g., ASTM D4226, EN ISO 1183).
Stage 1 – Online monitoring
Laser thickness gauge (online, accuracy ±0.005 mm) – records thickness profile every 2 meters
Metal detector and melt pressure sensor – immediate shutdown upon contamination or pressure drop
Stage 2 – Offline laboratory testing (per batch)

Test Item	Standard	Target Value
Tensile strength (MD/TD)	ASTM D882	≥ 45 MPa
Impact resistance (dart drop)	ASTM D1709	No break at 150g
Haze & light transmittance	ASTM D1003	Haze < 3%, Transmittance > 88%
Dimensional stability (80°C, 2h)	DIN 53377	Shrinkage < 1.5%

Stage 3 – Backlight visual inspection
100% inspection for gels, black spots, scratches, and die lines
Acceptance criteria: No visible defects per 10 m² for transparent grade
Stage 4 – Pre-delivery trial production
8-hour continuous run at rated output (e.g., 550 kg/h on SJZ92)
Full-width thickness deviation ≤ ±5%
Real case: A Middle Eastern rigid sheet customer tested our SJZ92 line for 1.5 mm transparent sheets. The 8-hour trial showed 0% downtime and thickness deviation of only 0.03 mm (local standard was 0.08 mm).

Parameters

Mode	SJZ80/156-1500	SJZ92/188-2300
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
Designed Extrusion Output(kg/h)	350	550

Q1: Can I produce both transparent sheets and colored rigid sheets on the same line?
A: Yes. The conical twin-screw design allows fast color changeover. For transparent sheets, we recommend dedicated screw cleaning compound and polished chrome-plated roller set. Many customers complete changeover between transparent and white/black within 2 hours.

Q2: What is the actual output of the SJZ80 for 0.5 mm transparent sheet?
A: At 0.5 mm thickness and 1220 mm width, typical stable output is 300–330 kg/h (maximum designed output of 350 kg/h corresponds to 1.0 mm thickness). The line maintains stable back pressure even at thin gauges.

Q3: How do you control edge thickness (neck-in)?
A: Our die lip adjustment system with automatic profile correction reduces edge bead. For 2000 mm width, edge trim loss is typically ≤ 4%. A closed-loop edge thickness feedback system is available for premium optical grades.

Q4: What raw material specifications are recommended?
A:PVC resin: K57–K65, preferably suspension grade
Impact modifier: CPE or acrylic (2–4 phr) for rigid sheets
Stabilizer: Ca-Zn or organotin for transparent sheets
No recycled material for transparent sheets (max 30% allowed for colored rigid sheets)

Q5: Does the line support embossing or surface treatment?
A: Yes. You can add an embossing unit before the pull rolls. Corona treatment for printing applications is also available.

Q6: What is the delivery lead time and installation support?
A: Standard lead time: 60–75 days. We provide one engineer for on-site commissioning (15 days) and remote video support. All manuals include English wiring diagrams and troubleshooting flowcharts.