YuanSu is a Wanplas factory that designs and builds plastic film, sheet, and board extrusion lines, with TPU film as one of its core specialties. A TPU film extrusion machine is a serious capital investment, and the price is driven less by a single number than by the width, layers, output, and drying system the product demands. This guide explains what moves the budget, how a cast TPU line is built, and how YuanSu sizes a configuration to your target cost level and throughput. Read it before you request a quote so the specification you send matches the line you actually need.
What Is TPU Film and Where It Is Used
TPU film is a thin sheet of thermoplastic polyurethane made by extrusion rather than by solvent casting. It keeps the elasticity, abrasion resistance, and clarity of TPU while avoiding the volatile solvents used in older coating routes. That makes it a cleaner, safer product to run at scale.
The material spans a wide hardness range, from soft and tacky to rigid and tough, by changing the soft-segment and hard-segment balance. This single resin family serves footwear, medical, automotive, and textile laminates, which is why so many converters want one line that can swing between grades.
Shoe brands use TPU film for welded uppers, toe caps, and decorative skins because it bonds without stitching. Medical device makers value its clarity and biocompatibility for wound dressings and device films. Automotive interiors use it for soft-touch skins and acoustic films.
Textile and apparel laminators bond TPU film between fabrics for waterproof yet breathable membranes. New-energy and electronics sectors use thin TPU for protective and release layers. The end use sets the film thickness, which in turn sets the line.
Grade choice decides processing risk. Polyether-based TPU resists hydrolysis and microbes, while polyester-based TPU brings higher strength but needs drier storage. YuanSu tailors the drying and screw package to the grade mix you plan to run, which protects both quality and the budget.
Real plant layouts show the range. A footwear converter running 0.15 millimeter TPU for welded uppers typically runs a 1500 millimeter line at moderate output, with the die tuned for clear, soft film and quick grade change between colors. A medical films maker running 0.05 millimeter clear TPU for dressings needs tighter gauge and cleaner resin handling, so the same platform is specified with a finer screen pack and a cleaner feed path.
An automotive skin producer adds a different load again: thicker, tougher film at wider width, where surface finish and absence of gels decide acceptance. These cases share one line family, which is why buyers ask for a platform that swings between grades instead of a single-purpose machine that locks them into one product.
TPU Grade and Application Map
| TPU type | Hardness range | Key property | Typical use |
|---|---|---|---|
| Polyether soft | 70A to 85A | Hydrolysis resistance | Medical, marine membrane |
| Polyester mid | 85A to 95A | Strength, oil resistance | Footwear, industrial film |
| Polyester rigid | 55D to 75D | Tough, abrasion resistant | Auto skin, protection |
| High-elastic | 60A to 80A | Stretch recovery | Apparel laminate |
| Flame-retardant | 80A to 60D | Low fire spread | Transport, electronics |
Film thickness sets both price and use. Thin membranes near 0.03 millimeter serve breathable laminates, while thicker 0.20 millimeter film carries structural and protective roles. Thinner film runs faster and uses less resin per square meter, but it demands tighter gauge control, which pushes the line budget toward better measurement and a stable die.
Additives also move the budget. Clear film needs clean resin handling and a polished die, while matte, anti-blocking, or colored film adds masterbatch dosing and sometimes a second feeder. These are Low to Medium add-ons, but they change the upstream package, so name them in the specification up front.
How TPU Film Extrusion Works
A cast TPU line starts with a dehumidifying dryer because TPU pulls moisture from the air and that moisture becomes steam in the barrel. Dry resin feeds a single-screw extruder where it melts at a controlled temperature, usually in the 180 to 220 degree Celsius band, without over-shear.
The melt passes a screen changer that strips gel and contamination, then enters a flat coat-hanger die. The die lip sets the film gauge across the width, and small die-bolt heaters fine-tune the edge-to-edge profile. TPU needs a polished, well-supported lip because the melt is viscous and elastic.
The melt curtain drops onto a chrome chill roll where it freezes into a clear, flat web. A second and third roll control the final surface and thickness. Cast cooling gives TPU the optical clarity and tight gauge that blown film struggles to match.
Online thickness measurement scans the moving web and closes the loop on the die bolts. Tight gauge matters because TPU film is sold by area but specified by thickness, so drift is lost margin. YuanSu holds tolerance near plus or minus 2 percent on its film lines.
A surface winder rolls the finished web at speeds that reach 600 meters per minute on optimized lines. Edge trim returns to the process through a regrind path, which improves material use. The whole cell runs from one control system with recipe storage for each grade.
Multi-layer co-extrusion adds one or two more extruders feeding the same die. A skin-core-skin structure can pair a soft elastic core with sealing skins, which is how high-elastic TPU film gets both stretch and weldability in one roll.
Die-lip and roll care keep the film clean. TPU residue at the lip shows as lines or haze on every meter, so operators clean the lip at each changeover and verify even heating across the width. The chrome chill rolls are polished weekly so heat transfer stays uniform and the web leaves the stack flat, which protects both clarity and gauge.
Why TPU Film Lines Cost What They Cost
The budget for a TPU film extrusion machine is not one figure but a sum of choices. Width, output, layer count, drying capacity, and automation each push the total up or down. Understanding the levers lets you trade features for price without hurting the product.
Width is the first lever. A wider die, wider roll stack, and stronger winder cost more, but wide film also cuts your converting waste. Most buyers should size width to the roll their customers order, not to a round number.
Output is the second lever. Higher throughput needs a bigger screw, more drive power, and a longer cooling stack. If your market only needs a moderate volume, a smaller screw saves budget and floor space with no quality loss.
Layer count is the third lever. A single-layer line is the lowest-cost entry. Adding co-extrusion for skin-core or barrier structures adds extruders, a feedback die, and a controller, which moves the budget up a level.
Drying and feeding form a hidden lever. TPU cannot run without proper drying, so the dehumidifying dryer is mandatory, not optional. Skipping it to cut cost only shifts the failure to scrap and screw wear later.
Automation is the final lever. Thickness scanning, recipe management, and remote monitoring raise the budget but cut labor and rejects. For a first line, a mid level of automation usually pays back fastest.
Utilities and footprint are quieter levers that still move the budget. A wider, faster line draws more power and needs more chilled water, while a compact line fits a smaller bay and a lighter utility load. YuanSu designs the cooling and drive package to the real output, which avoids paying for capacity the product will never use and keeps the running energy in check.
Total cost of ownership beats sticker price. A line with stronger screw and barrel protection, better gauge control, and easier grade change earns back its higher budget through less scrap, less downtime, and faster product switches. YuanSu sizes each option so you pay for capability the product uses, not for headline specs you will never reach.
Cost Component Breakdown by Budget Level
The table below ranks each line component by its effect on the total budget. Use the levels to see where a change saves the most, and where cutting cost would hurt the film. YuanSu quotes against a configured bill of materials, so these levels map directly to the options you pick.
Component to Budget-Level Map
| Line component | Budget impact | What moves it |
|---|---|---|
| Dehumidifying dryer | Medium | Mandatory for TPU; capacity scales with output |
| Screw and barrel package | Medium-High | Size, bimetallic barrel, mix section |
| Flat die and lip | High | Width, lip precision, co-extrusion |
| Chill roll stack | Medium | Roll width, surface finish, cooling |
| Thickness measurement | Medium | Scan width, sensor type |
| Surface winder | Medium | Width, roll weight, automation |
| Co-extrusion add-on | High | Extra extruders and feedback die |
| Control and remote | Medium | Recipe, HMI, remote monitoring |
| Line width upgrade | High | Die, rolls, frame, winder scale together |
| Output upgrade | Very High | Screw, drive, cooling, footprint grow |
Budget levels run from Low for a narrow single-layer pilot line, through Medium and High for standard production, to Very High and Premium for wide, fast, multi-layer lines with full automation. YuanSu helps you place the line in the right band instead of over-buying.
The cheapest line that makes sellable film is not always the cheapest to own. A line that scraps less, welds reliably, and needs fewer service calls often costs less over five years than a bare-bones unit with a low entry price.
Think in budget bands, not single quotes. Tell YuanSu your target band, your width, and your output, and the team returns a configuration that lands in that band with the features the product truly needs.
Resin cost is separate from machine cost but shapes the total business case. High-elastic and flame-retardant grades cost more per kilogram than commodity polyester TPU, so the line that wastes less resin through tight gauge and regrind recovery pays back faster when running premium grades. Buyers should weigh machine budget against expected material savings, not in isolation.
Hidden Costs Beyond the Machine Price
The machine price is only part of the investment. A realistic budget also covers freight, plant work, utilities, commissioning, and the first year of consumables. Planning these early avoids a surprise that stalls the project after the line arrives.
International freight and insurance sit at a Medium to High level because a cast line ships in several large crates with a long, heavy roll stack. Ocean freight varies with container and break-bulk rates, so YuanSu quotes a transport guarantee that caps the delivery risk rather than leaving it open.
Plant preparation is a Medium cost that buyers sometimes forget. The line needs a straight, level bay with a reinforced floor for the heavy roll stack, plus three-phase power and chilled-water capacity for the cooling system. YuanSu includes water and electricity design in its factory planning step so the civil work is known before you build.
Commissioning and training are covered by the Wanplas service promise rather than billed separately. An engineer commissions on site and trains your team, which protects the early run rate. The USD 500 free parts per year policy also lowers the first-year consumable budget compared with buying every wear part at list.
Material yield is a quiet cost lever. Edge trim returned through regrind, tight gauge control, and low scrap rates recover resin that a loose line would waste. Over a year of production, better yield often outweighs a small difference in the original machine price.
Spare screws, barrel liners, and die lips are the wear items to stock. Because YuanSu is a Wanplas factory, those parts stay available for the full service life, which keeps a single line running instead of being retired when a worn component goes out of stock.
Utilities and consumables form a steady, often overlooked line in the budget. Compressed air, chilled water, and three-phase power run every hour the line is up, and the dehumidifying dryer draws continuous load to keep resin dry. A line designed for up to 25 percent energy reduction versus conventional units lowers that recurring cost across the whole service life, which matters more than a small saving on the purchase price.
YuanSu TPU Film Extrusion Lines
YuanSu builds two TPU-focused film platforms. The first runs TPU with PVB, POE, and EVA on one cast line, which suits converters who handle several elastomer and copolymer films. The second is a dedicated high-low temperature and high-elastic co-extrusion line for stretch and extreme-service film.
TPU or PVB or POE or EVA Film Extrusion Line
This line is the flexible workhorse for TPU and sister materials. A low-shear single-screw plasticizes the resin gently, the flat die sets the gauge, and the cast stack delivers clear, flat film at high line speed. Recipe storage lets one plant swing between TPU, POE, and EVA grades.
Standard TPU Film Line Specification
| Parameter | Range | Note |
|---|---|---|
| Film thickness | 0.008 to 0.25 mm | Covers most TPU film |
| Product width | 1000 to 2500 mm | Roll width to order |
| Output | 150 to 600 kg/h | By grade and width |
| Screw type | Single-screw | Low-shear, mix section |
| Screw diameter | 75 to 150 mm | Scales with output |
| L/D ratio | 30 to 33 | Good homogenization |
| Layers | 1 to 3 | Co-extrusion ready |
| Winding speed | Up to 600 m/min | Optimized line |
| Drive power | 75 to 200 kW | By configuration |
Film-line features include multi-layer co-extrusion, thickness tolerance near plus or minus 2 percent, and up to 25 percent energy reduction versus conventional lines. The Wanplas group supplies matched upstream drying and downstream winders so the cell is one accountable package.
TPU High-Low Temperature and High-Elastic Film Co-Extrusion Line
When the product must stretch and recover, or serve hot and cold extremes, YuanSu configures a co-extrusion line with two or three extruders. A soft elastic core sits between skin layers that handle sealing, release, or abrasion on each face.
High-Elastic Co-Extrusion Line Specification
| Parameter | Range | Note |
|---|---|---|
| Film thickness | 0.02 to 0.20 mm | Elastic film class |
| Product width | 1000 to 2200 mm | Apparel and medical rolls |
| Output | 200 to 700 kg/h | Higher for thin film |
| Extruders | 2 to 3 | Core plus skins |
| Layers | Up to 3 | Skin-core-skin |
| Service temp | Low to high range | Elastic grade dependent |
| Winding speed | Up to 600 m/min | Optimized line |
| Energy saving | Up to 25 pct | Versus conventional |
| Drive power | 150 to 280 kW | By layer count |
Both platforms run from the same YuanSu control architecture, so an operator trained on one moves to the other with little retraining. The co-extrusion line sits one budget band above the standard line because of the extra extruders and the feedback die.
Commissioning protects the early output. YuanSu runs a trial on the buyer’s grade before shipment, then an engineer commissions on site and trains the team, so the line reaches spec rate without a long internal learning curve. Recipe storage carries the tuned setting forward, so the next grade change repeats the proven window instead of starting from zero.
Selection Guidance and Service Support
Sizing a TPU line starts from the film you sell: grade, thickness, width, and weekly kilograms. The table turns those into a recommended YuanSu configuration and the budget band it lands in, so the quote stage is short and the engineering is concrete.
Requirement to Line Recommendation
| Requirement | Recommended line | Width | Budget band |
|---|---|---|---|
| Footwear TPU, 0.15 mm | Standard TPU film line | 1500 mm | Medium |
| Medical clear TPU, 0.05 mm | Standard TPU film line | 1200 mm | Medium |
| Textile membrane, 0.03 mm | Standard TPU film line | 2000 mm | Medium-High |
| Auto skin TPU, 0.20 mm | Standard TPU film line | 1800 mm | High |
| High-elastic laminate, 0.08 mm | Co-extrusion line | 1600 mm | High |
| Wide extreme-service film, 0.10 mm | Co-extrusion line | 2200 mm | Very High |
YuanSu serves packaging, healthcare, and new-energy customers alongside construction, so a TPU line often shares the plant with sheet and board lines from the same supplier. The Wanplas group covers the full film, sheet, and board range under one quality system.
Wanplas Shared Service and Support
| Service item | Commitment |
|---|---|
| Free spare parts | USD 500 free parts per year |
| Warranty | Replacement of damaged parts in warranty |
| Installation | Engineer on-site commissioning and trial run |
| Training | Operation and maintenance for your team |
| Open factory | Welcome to visit and audit the plant |
| Quality promise | Refund plus 10 percent if standard fails |
The Wanplas brand stands behind every YuanSu line with the same promises: free parts, transport guarantee, production capacity guarantee, and quality standards. One supplier owns the line from factory design through lifetime consultation, which lowers the real cost of ownership.
Maintenance, Wear Parts, and Lifecycle Care
A TPU film line runs a viscous, sometimes abrasive melt at tight tolerance, so a steady care routine protects gauge, clarity, and uptime. The wear pattern is well known, and YuanSu logs running hours in the control system so the team inspects on a schedule instead of reacting to breaks.
TPU Line Care Schedule
| Item | Frequency | Action |
|---|---|---|
| Dryer desiccant | Every 6 months | Regenerate or replace |
| Screw and barrel | Every 3000 hours | Inspect, measure wear |
| Die lip | Every changeover | Clean, verify even heat |
| Chill rolls | Weekly | Polish, check channels |
| Thickness sensor | Monthly | Calibrate against standard |
| Winder and edge trim | Every roll | Check tension and trim path |
The dehumidifying dryer deserves the first attention because TPU quality starts with dry resin. A saturated desiccant lets moisture return, which shows as silver streaks and weak film, so the desiccant is regenerated or replaced on a fixed cycle rather than when film faults appear.
Screw and barrel wear grows slowly with filled or pigmented grades. A bimetallic barrel and a hardened screw hold the geometry longer, and the Wanplas spare-parts policy keeps replacement screws, liners, and die lips available for the full service life. That turns a potential line retirement into a planned, low-cost parts swap.
Operator discipline does the rest. Cleaning the die lip each changeover, trusting the recipe storage, and reading the thickness scan keep rejects low. YuanSu covers operation and maintenance training during commissioning, and the open-factory option lets new staff see the line built and tuned before it ships to your plant.
Sizing the TPU Line to Your Market
The right line matches your real order book, not a headline spec. A converter serving a few steady footwear grades needs width and output sized to those rolls, with fast grade change as the priority. A medical or automotive supplier needs tighter gauge and cleaner handling, which shifts the budget toward measurement and filtration rather than width.
Growth plans should enter the specification early. A line sized only to today’s volume leaves no headroom, while a line sized to a realistic three-year plan avoids a second purchase too soon. YuanSu sizes the screw, drive, and cooling to the planned weekly kilograms, with a clear upgrade path for drying and winder if volume climbs.
Product mix decides layer count. A single-layer footwear film keeps the line simple and Low to Medium in budget, while a high-elastic laminate or a skin-core medical film needs co-extrusion and lands in the High to Very High band. Naming the mix up front lets YuanSu return one configuration that fits the market instead of a generic quote that misses the real need.
Frequently Asked Questions
Why does TPU film need a drying unit?
TPU is hygroscopic and absorbs moisture that turns to steam in the barrel, causing silver streaks and weak film. A dehumidifying dryer brings resin below the moisture limit before feeding, which protects both quality and the screw.
Is cast film or blown film better for TPU?
Cast film is the standard for TPU because flat-die cooling gives tight gauge control and clean opticals. Blown film can serve very thin elastic film but struggles with the width and flatness that most TPU buyers need.
What line width do I need for shoe film?
Footwear and laminate TPU film usually runs on 1000 to 2000 millimeter widths. Wider lines suit medical and automotive rolls. YuanSu sizes the die and winder to the roll width your customers actually order.
How much floor space does a TPU line need?
A standard cast line with dryer, extruder, die, roll stack, and winder needs a long, straight bay plus space for rolls. YuanSu plans the layout in 3D during the factory design step so the cell fits your building.
Can one line run TPU and TPE?
Often yes, because both are thermoplastic elastomers with close processing windows. Recipe storage on the control system handles grade changes, though some TPE grades need a different screw profile to plasticize cleanly.
What screw design suits TPU?
A gentle, low-shear single-screw with a barrier or mixing section melts TPU without thermal degrade. A high L/D ratio near 30 to 33 improves homogenization. YuanSu tunes the screw to your grade range.
How long does it take to install a TPU film line?
Manufacture, pre-shipment test, ocean freight, and on-site commissioning together span several months. YuanSu engineers commission on site and run a trial before handover, which shortens your internal ramp time.
Does YuanSu offer a high-low temperature TPU line?
Yes. The TPU high-low temperature and high-elastic film co-extrusion line builds elastic film for extreme service, using multi-layer co-extrusion to pair a soft core with skin layers for sealing and release.
Conclusion
A TPU film extrusion machine is priced by width, output, layer count, drying, and automation rather than by a single tag. Cast film is the right process for TPU because it gives the gauge control and clarity the market expects, and co-extrusion unlocks elastic and multi-function film.
YuanSu, a Wanplas factory, builds both the standard TPU film line and the high-elastic co-extrusion line on one control platform, backed by the Wanplas service promises. Send us your target grade, thickness, width, and weekly output, and our team will size a line in your budget band, plan the factory layout, and invite you to witness a trial run before shipment.
