PP / PS / PLA / PBAT / PHA Sheet Extrusion Line

Sheet extrusion lines for PP, PS and HIPS, and for the biodegradable PLA, PBAT and PHA. Standard configurations are single-layer and 3-layer co-extrusion, with fully customizable multi-layer co-extrusion lines to match the application.

PP
PS
HIPS
PLA
PBAT
PHA

Sheet thickness: 0.15–3mm
Sheet width: 600–3,000mm
Throughput, single and twin screw lines: 350–1,500kg/h
Sheet thickness tolerance: ± 0.005mm

Five kinds of sheet from one line design

The lines are highly versatile and designed to meet diverse production needs.

Sheet	Variants	Used for
Thermoforming & packaging	Premium thermoforming sheets	Food packaging, thermoformed or vacuum formed; anti-static electronic component trays
Blister packaging	Single-layer, bi-color co-extruded, ultra-high-clarity transparent	Thermoforming and blister packaging industries
Stationery & office supplies	Highly transparent, frosted / matte with fine or coarse texture, bi-color	PP stationery sheets
Highly filled sheet	PP compounded with high percentages of calcium carbonate (CaCO₃) or talcum powder	Rigid food containers and lunch boxes
Bio-based eco-sheet	PP compounded with natural fillers such as corn starch or bamboo powder	Eco-friendly applications

Stack of clear thermoformed PP food containers — Thermoformed food containers

Black thermoformed trays for electronic components — Electronic component trays

Frosted PP stationery sheets — Stationery sheets

PP sheet

Light weight, good heat resistance, high mechanical strength, excellent chemical stability and electrical insulation. After thermoforming it becomes beverage cups and food boxes.

PS sheet

Excellent thermoforming performance and good hardness; easy to colour; low static electricity generation. Widely used in the blister packaging of medicine, food, toys, electronics and clothing.

Twin screw or single screw

Both extruder types feed the same die, calender and winder. All lines: sheet thickness 0.15–3 mm, width 600–3,000 mm.

Ask for a configuration →

SAT series

Twin screw extrusion line

For formulas that are compounded in the line: fillers, talc, starch or bamboo powder are fed and dispersed in the extruder, without a separate pelletizing step. Compounding in line makes a recipe change more flexible and the masterbatch preparation unnecessary.

TDD series

Single screw extrusion line

For simple formulations: resin with a small added quantity of masterbatch or additives, premixed and fed into the extruder.

Twin screw extrusion line · SAT series

Extruder	Motor power	Max. output
Single-layer line
SAT75	160 kW	500–700 kg/h
SAT85	220 kW	600–800 kg/h
SAT95	355 kW	800–1,200 kg/h
Co-extrusion line
SAT75 / SAT52	160 kW / 45 kW	500–700 kg/h
SAT85 / SAT52	220 kW / 45 kW	700–900 kg/h
SAT95 / SAT65	355 kW / 75 kW	900–1,500 kg/h

Single screw extrusion line · TDD series

Extruder	Motor power	Max. output
Single-layer line
TDD120	132 kW	350–450 kg/h
TDD130	160 kW	500–600 kg/h
TDD150	200 kW	600–800 kg/h
Co-extrusion line
TDD120 / TDD65	132 kW / 45 kW	350–450 kg/h
TDD130 / TDD75	160 kW / 55 kW	500–600 kg/h
TDD150 / TDD90	200 kW / 75 kW	600–800 kg/h

Tailored extrusion solutions

Processing and screw configurations engineered for the raw material format and its processing requirements.

Energy-efficient drive

Permanent magnet synchronous motor, USEON high-torque gearbox and a safety coupling that disengages on torque overload.

Precision co-extrusion

A premium feedblock and extrusion dies: stable melt flow, uniform layer distribution, precise control over individual layer ratios.

Stable extrusion pressure

Servo drive and dual closed-loop control, with simplified operation.

Biodegradable sheet: PLA, PBAT and PHA on the same line

Fully biodegradable sheet for thermoformed products.

Sheet extrusion line for PP, PS, PLA, PBAT and PHA seen from the winder side — The same line design runs PP / PS and PLA / PBAT / PHA.

Biodegradable materials

The processing equipment is very similar to the PP / PS line: the same extruder series, die, calender and winder.

PLA
PBAT
PHA

High-torque extruder

Low temperature and low speed operation.

High-vacuum degassing system

Superior colour retention and minimal IV drop; a highly stable vacuum, consistently maintained at −0.1 MPa, minimises polymer degradation.

Highly optimised screw configuration

Optimal plasticising intensity and enhanced molecular weight distribution.

The compound before the sheet: PLA, PBAT and starch blends.

Biodegradable Plastic Compounding

The line, station by station

An integrated melt-delivery system and a one-stop downstream, for low pulsation, maximum yield rates and extended continuous runtimes.

Station	Equipment	What it does
Feeding	High-fill-ratio feeding system	Maximised throughput rates.
ExtrusionCo-extrusion: one more extruder for the skin layers	SAT twin screw or TDD single screw extruderHigh-vacuum degassing	Low temperature and low speed operation; venting and devolatilization by a redesigned barrel and screw geometry.
Melt delivery	Continuous screen changerMelt pumpFeedblockSheet die	Nonstop melt filtration; the melt pump balances flow rates and pressure differentials for surge-free extrusion.
Forming	L-type 3-roller calender	The first two rollers are horizontal, so the die extrudes vertically: effortless commissioning and rapid start-up.
DownstreamFully automatic winders and roll unloaders for hands-free production	Cooling conveyorEdge trimming unitEdge winderTake-offWinder	Trims the sheet to width and winds it into rolls.

Twin screw extruder of a PP sheet direct extrusion line on its platform — Twin screw extruder on the platform

Three-roll calender of a PP sheet line — Three-roll calender

PP sheet roll on the winder — Sheet roll on the winder

High-precision 3-roller calender

Where the surface and the thickness tolerance of the sheet are made.

Schematic, not to scale. Rollers 1 and 2 are aligned horizontally; rollers 2 and 3 are positioned at a 45° incline. The sheet runs under roller 2 and over roller 3.

< 0.005 mm

Roller runout in operation

Ra 0.015 μm

Roller surface, hard-chrome plated and polished

15 mm

Thin-wall roller shell

Up to 10 t

Clamping force per hydraulic cylinder

Thin-wall rollers: cooling efficiency 15% to 30% higher than traditional thick-wall designs
42CrMo alloy steel shell: surface strength and hardness against scratching or denting by high-stiffness sheets
Monoblock spiral-groove core, shrink-fitted into the shell: no internal gaps, no deflection under calendering pressure
Premium bearings, shrink-fitted for a zero-clearance fit between bearing and shaft
Servo motors on all three rollers, with zero-backlash gearboxes: no chatter marks or ripples
Hydraulic clamping with zero pressure fluctuation during production, for flatness and consistency

PP sheet lines delivered

All three compound the filler in the twin screw extruder and extrude the sheet directly.

USA

Related lines

Sheet Extrusion

Why compounding and sheet extrusion run in one step.

PET Recycling

Get a quote

Tell us the sheet you sell and the formula behind it. We propose twin or single screw, the number of layers and the line width.

01Material and formula: PP, PS, HIPS, PLA, PBAT or PHA; filler type and percentage
02Sheet: thickness range, width, layer structure, output per hour
03Extruder type, line configuration and quotation

Souder Chen

Head of Compounding Division

With USEON since 2008. Twin screw compounding, devolatilization and recycling lines.

souder.chen@useon.com +86 139 5186 5928