PVC Door Window Sealing Strip Co Extrusion Line For Architectural Profile Waterproof Sealing Processing

What a PVC Door and Window Sealing Strip Co-Extrusion Line Delivers

A PVC door and window sealing strip co-extrusion line is a dedicated profile extrusion system that forms weather stripping in a single, continuous pass by joining a rigid or semi-rigid PVC carrier with a soft sealing lip made from thermoplastic elastomer or a soft PVC compound. The result is a finished gasket that no longer needs to be assembled from two separate parts: the mounting base, which locks into the profile groove, and the flexible lip, which compresses against the frame to block wind, water, dust, and noise. For architectural aluminum, uPVC, and wooden door and window systems, this integrated strip is the difference between a window that leaks on the first storm and one that stays tight for decades.

Faygo, a Wanplas factory, has spent 22 years building pipe and profile extrusion systems, and its FAYGOPLAST platform in Zhangjiagang covers 26,650 square meters with three specialized factories. The sealing strip co-extrusion line described here is built on the same profile extrusion knowledge that Faygo applies to PVC window profiles, decorative profiles, and custom extrusions, then extended with a second extruder and a co-extrusion die so that hard and soft materials fuse at the die land rather than being glued afterward. Every line leaves the factory after a 72-hour continuous operation test and is CE and ISO certified.

This article explains how the line is configured, what each section does, which strip geometries map to which machine layouts, how materials and weather resistance interact, how co-extrusion compares with single-material extrusion, and how to select the right configuration for a given architectural profile. It also walks through the standards that govern door and window sealing strips in China and internationally, and closes with the selection guide, application industries, service support, and a list of frequently asked questions.

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Cách quá trình co-đào tạo hoạt động từng bước

Co-extrusion is the simultaneous extrusion of two or more polymer melts through a shared die so that they bond at the interface while still molten. For a door and window sealing strip, the line normally carries one parallel twin-screw extruder for the PVC carrier and one single-screw extruder for the soft TPE or soft PVC lip. Both melts meet inside a co-extrusion die where the flow channels are balanced so the two materials joint without delamination, then the combined profile enters the calibration and cooling section as one piece.

Tiếp tục trình tự đầy đủ từ nguyên liệu thô đến dây băng dính như sau:

1. Chuẩn bị và cung cấp vật liệu. The PVC compound is dosed through a loss-in-weight feeder or volumetric feeder into the twin-screw barrel, while the TPE or soft PVC is fed into the single-screw barrel from a separate dryer or hopper. PVC for rigid carriers is typically a calcium-zinc stabilized compound; the soft lip uses a thermoplastic elastomer such as TPE-S, TPV, or a plasticized soft PVC. Feed accuracy matters because the lip-to-base ratio defines the final compression and recovery behavior of the gasket.

2. Plasticizing in the barrels.Trong thùng xoắn đôi song song quay, PVC được trộn, phun bột và đồng nhất ở nhiệt độ chảy khoảng 175 đến 200 độ C. Thùng xoắn đơn phun bột các vật liệu mềm ở nhiệt độ thấp hơn, thường là 160 đến 185 độ C, để bảo vệ elastomer khỏi phân hủy nhiệt. Kiểu thiết kế của trục, tỷ lệ L/D và biểu đồ nhiệt độ của thùng được điều chỉnh để cả hai chất lỏng đạt độ sệt tương ứng khi đi qua ống.

3. Máy đùn co-đào tạo.Máy đùn là trung tâm của dây chuyền sản xuất. Nó nhận hai dòng nhựa nóng và kết hợp chúng để lớp mút mềm được bao quanh hoặc dán lên nền cứng. Một máy đùn được thiết kế tốt sẽ giữ độ cắt thấp, tránh các khu vực tắc nghẽn nơi PVC có thể phân hủy và cho phép người vận hành điều chỉnh độ dày của lớp mút một cách độc lập bằng cách thay đổi sản lượng của máy đùn đơn. Máy đùn nhiều khoang có thể tạo ra nhiều thanh song song để tăng hiệu suất.

4. Vacuum calibration and cooling. Directly after the die the profile passes through a vacuum calibration table. A vacuum calibration sleeve fixes the outer dimensions of the rigid base to tight tolerances while spray or bath cooling sets the shape. For sealing strips the critical dimension is the barb or bulb that locks into the profile groove, so the calibration sleeve is engineered to hold that feature within a fraction of a millimeter.

5. Haul-off.Một con lăn vận chuyển cầm giữ thanh không nén phần môi và kéo nó về phía trước với tốc độ dòng ổn định. Vì phần môi gần như không có cường độ, con lăn phải áp dụng lực đều trên toàn bộ chiều rộng; nhiều dòng sử dụng thiết kế có băng rộng hoặc hai đường ray. Tốc độ dòng là công cụ chính cho sản lượng và được thiết lập bằng khả năng làm mát và độ cứng của phần môi.

6. Cutting and collection. A servo-driven fly knife or fixed-length cutter severs the continuous strip into coils or lengths. For automatic window production the strip is usually wound onto rolls; for replacement-market gaskets it is cut to length. The cut pieces are then inspected, packed, and moved to the next process.

Typical Dây chuyền sản xuất Configurations and Technical Specifications

Một dòng co nén thanh được quy định bởi chiều rộng thanh, phức tạp của phần môi và sản lượng mong muốn. Bảng dưới đây cho thấy ba cấu hình đại diện được Faygo xây dựng trên nền tảng mô hình FAYGOPLAST. Những cấu hình này là các lớp thay vì mã mô hình cố định; mỗi dòng được thiết kế cho hình dạng cắt của khách hàng và sản lượng mục tiêu.

Table 1. Representative PVC sealing strip co-extrusion line specifications
Parameter Compact line Standard line High-output line
PVC carrier extruderParallel twin-screw 51 mmParallel twin-screw 65 mmParallel twin-screw 65 mm, high torque
Soft lip extruderSingle-screw 30 mmSingle-screw 45 mmSingle-screw 45 mm, twin feed
Screw L/D ratioTwin 40:1, single 25:1Twin 44:1, single 28:1Twin 48:1, single 30:1
Co-extrusion dieSingle or double cavityDouble or four cavityFour or six cavity
Strip width range6 to 20 mm10 to 35 mm15 to 50 mm
Calibration table length3 m vacuum4 to 6 m vacuum6 to 9 m vacuum
Line speed1 to 4 m/min2 to 6 m/min3 to 10 m/min
Combined output40 to 70 kg/h70 to 120 kg/h120 to 200 kg/h
Haul-off typeBelt caterpillarWide belt caterpillarDual-track servo
Máy cắtFixed-length sawServo fly knifeServo fly knife, multi-station
Control systemPLC plus HMIPLC plus HMI, inverter drivesPLC plus HMI, servo with data logging
CertificationCE, ISOCE, ISOCE, ISO

The numbers above are configuration ranges. The exact screw diameter, die cavity count, and line speed are set after Faygo receives the customer’s strip cross-section drawing and target meters per minute. Because the line is a profile system rather than a fixed package, the same haul-off and cutter can serve different dies, which protects the buyer from being locked into one strip design.

Strip Types and the Machine Configuration They Require

Architectural sealing strips come in several cross-section families, and each family stresses a different part of the line. A wool-pile-free flexible lip wants a clean soft-material channel; a bulb seal wants balanced cooling so the bulb stays round; a fin or flap seal wants a thin lip that needs precise speed control; a multi-chamber carrier wants a stable rigid base. The table below maps common strip types to the machine configuration that produces them reliably.

Table 2. Strip type to machine configuration
Strip type Base material Lip material Recommended extruder set Die and cooling note
Clip-in barb sealRigid PVCTPE or TPVTwin 51 + single 30Tight calibration sleeve for barb
Bulb weather sealRigid or semi-rigid PVCSoft PVC or TPETwin 65 + single 45Symmetric cooling to keep bulb round
Fin or flap sealRigid PVCSoft PVCTwin 51 + single 30Low shear die, precise speed control
Multi-chamber carrierRigid PVCTPE at one edgeTwin 65 + single 45Longer calibration, stiff base cooling first
Dual-lip compression sealSemi-rigid PVCTPE-S both lipsTwin 65 + single 45 twin feedTwo soft channels balanced in die
Wiper blade sealRigid PVCSoft PVCTwin 51 + single 30Thin lip needs steady haul-off tension

When a customer already produces single-material PVC strips and wants to add a soft lip, the cheapest upgrade is usually a single-screw extruder plus a co-extrusion adapter and a new die, reusing the existing calibration table and haul-off. Faygo’s turnkey team reviews the current layout before recommending whether to add a second extruder or replace the line, which is where the selection guide in a later section helps.

Materials, Weather Resistance, and UV Performance

The performance of a sealing strip over its service life is decided mostly by the lip material, because the lip does the compressing and the base only has to hold position. The carrier is almost always a rigid or semi-rigid PVC chosen for dimensional stability and resistance to the groove; the lip is where weather resistance, low-temperature flexibility, and UV stability are won or lost.

Table 3. Material to performance mapping
Material Hardness (Shore A) Low-temp flexibility UV and weather resistance Compression set Typical use
Plasticized soft PVC55 to 80Fair, stiffens below 0 CModerate, needs stabilizerHigherIndoor and mild-climate gaskets
TPE-S (styrenic)50 to 85Good down to minus 30 CGood with UV packageLow to moderateGeneral exterior weather strip
TPV (EPDM-like TPE)60 to 85Excellent, minus 40 CExcellent, UV stableVery lowHarsh exterior, long-life seals
EPDM rubber55 to 80ExcellentExcellentVery lowPremium co-extruded with PVC
Rigid PVC carrierShore D 70 to 80Brittle below minus 10 CGood with TiO2N/AMounting base and barb

For exterior doors and windows the lip should be a TPV or TPE-S with a UV stabilizer package and, for white or colored strips, a titanium-dioxide level that resists chalking. Pure plasticized soft PVC is the lowest-cost option and is acceptable for interior or sheltered gaskets, but it hardens and loses compression recovery faster outdoors, which is why co-extruding a TPE lip onto a PVC base is the common upgrade path. The base itself is typically a calcium-zinc stabilized rigid PVC with titanium dioxide for color retention, so the whole strip stays weather resistant without painting.

Weather resistance is verified by accelerated aging: heat aging to check hardness change, ozone exposure for crack resistance, and a xenon-arc or fluorescent UV cycle to check color and surface change. A strip that passes these tests keeps its seal after years of sun and freeze-thaw cycles, which is exactly what GB/T 12002 and the corresponding ISO guidance require for architectural sealing products.

Regrind handling is part of the material decision. The rigid PVC base can usually accept a controlled percentage of clean in-house regrind from start-up and edge trim without losing groove retention, provided the regrind is free of the soft lip material and is metered back through the loss-in-weight feeder rather than dumped in by volume. The soft lip, by contrast, is rarely reground into the same product because elastomer reprocessing changes hardness and recovery; off-grade soft material is better routed to a less demanding grade or a closed-loop compound stream. Faygo’s recipe system lets the operator set a separate regrind ratio for the base so the line stays consistent run after run. Color matching is another material task: white and foiled strips need a stable titanium-dioxide level and a compatible pigment package, while dark strips need carbon-black grade and loading chosen so the lip does not chalk under UV. Because the base and lip are dosed from separate extruders, each can carry its own color without cross-contamination, which is a quiet advantage of co-extrusion over painting a finished strip after the fact.

Co-Extrusion Versus Single-Material Extrusion

Before co-extrusion became standard, many gaskets were either all-PVC strips or separate rubber lips pushed into a groove after the frame was made. Co-extrusion changes the economics and the performance at the same time. The comparison below helps a buyer decide whether the second extruder and co-extrusion die are worth the added complexity.

Table 4. Co-nhiệt áp so với nhựa đơn chất
Aspect Single-material PVC strip Separate lip inserted later PVC plus TPE co-extruded strip
Sealing performanceLimited, hard lipGood if lip stays inBest, bonded soft lip
Process stepsOne extruderExtrude plus assembleOne pass, two extruders
Bond reliabilityN/ACan loosen or fall outMolecular bond at interface
Material costLowMediumMedium
Equipment complexityLowLow plus assemblyMedium, two extruders and die
Weather lifeShort outdoorsMediumLong with TPV lip
Phế thải và sửa chữaLowCao hơn từ quá trình lắp rápThấp sau khi điều chỉnh

The practical conclusion is that for any exterior or high-specification architectural profile, co-extrusion pays back through fewer assembly steps and a more reliable seal, while the all-PVC strip stays relevant only for the lowest-cost interior applications. The incremental cost of a second single-screw extruder is small against the labor saved by eliminating a post-assembly insertion step, and the bonded interface removes the most common field failure of inserted lips.

Floor space and utilities shape the decision as much as the hardware. A compact sealing strip line fits a modest bay because the downstream is short: die, a three-meter calibration table, a caterpillar haul-off, and a cutter form a line only a little longer than the profile it makes, with the two extruders mounted side by side at the head. A high-output six-cavity line needs more length for cooling and a wider haul-off, plus a larger chiller and air supply for the vacuum calibration, so the utility plan drawn during Faygo’s factory consulting stage should size the water and power before the machines arrive. The intelligent control system also supports remote monitoring, so a small team can run several lines from one control point, which is why the operating cost stays manageable even when output grows. When a plant later wants to double capacity, the usual path is to add a second line on the same platform rather than to overbuild the first one, keeping spare parts and recipes shared across the shop.

Faygo PVC Profile Co-Extrusion Product Spotlight

Faygo, một nhà máy của Wanplas, cung cấp nền tảng dây băng dính FAYGOPLAST mà dây băng dính này được xây dựng trên đó. Hai mô-đun sản phẩm được hiển thị dưới đây với bảng thông số kỹ thuật của chúng. Cả hai đều dựa trên 22 năm kinh nghiệm trong lĩnh vực đùn ống và dải của Faygo, 13 bằng sáng chế quốc gia bao gồm 8 bằng sáng chế, và quá trình sản xuất được chứng nhận CE và ISO. Mỗi dây băng dính được kiểm tra trong 72 giờ trước khi giao hàng.

Faygo PVC Door and Window Sealing Strip Co-Extrusion Line

This is the core line for the article topic. It pairs a parallel twin-screw extruder for the rigid PVC carrier with a single-screw extruder for the soft lip, and ships with a co-extrusion die, vacuum calibration table, caterpillar haul-off, and servo cutter sized to the ordered strip width.

Table 5. Faygo PVC sealing strip co-extrusion line specification
Item Specification
Carrier extruderParallel co-rotating twin-screw, 51 or 65 mm, L/D 40 to 48
Lip extruderSingle-screw, 30 or 45 mm, L/D 25 to 30
DriveMáy biến áp hoặc servo, các bộ phận điện được thương hiệu quốc tế
Co-extrusion dieHard plus soft, 1 to 6 cavities, adjustable lip thickness
CalibrationVacuum calibration table 3 to 9 m, water spray and bath
Haul-offCaterpillar, belt or dual-track, speed 1 to 10 m/min
Máy cắtServo fly knife or fixed-length saw, coil or length out
ControlPLC with HMI, recipe storage, real-time parameter adjustment
Output range40 to 200 kg/h combined, 1 to 10 m/min line speed
Strip width6 to 50 mm, custom cross-section supported
Pre-delivery test72-hour continuous operation test
CertificationCE and ISO certified

Faygo PVC Window Dây chuyền đùn thanh profile

Faygo’s broader profile extrusion line produces PVC window profiles, door frames, decorative profiles, and custom extrusions, and shares the same calibration, haul-off, and cutting technology used on the sealing strip line. Buyers who make both frames and gaskets can standardize on one supplier platform and one spare-parts list.

Table 6. Faygo PVC window profile extrusion line specification
Item Specification
ExtruderParallel twin-screw, 51 to 80 mm, L/D 40 to 48
Profile typesWindow frames, door frames, decorative, WPC composite
Die and calibrationMulti-profile die, vacuum calibration, spray cooling
Haul-offCaterpillar, synchronized with extruder
CuttingPlanetary or servo fixed-length cutter
ControlIntelligent control, free parameter setting, real-time adjust
OutputScaled to profile weight and line speed
Factory baseFAYGOPLAST, Zhangjiagang, 26.650 m2, 3 nhà máy
CertificationCE and ISO certified, 72-hour test

Cả hai mô-đun đều được cung cấp như các hệ thống hoàn chỉnh. Đội ngũ kỹ thuật của Faygo thiết kế máy ép từ bản vẽ cắt của khách hàng, chạy thử 72 giờ trên thanh thực tế hoặc mô hình và ghi lại công thức quy trình để sản xuất bắt đầu nhanh chóng sau khi cài đặt.

Selection Guide: Matching Demand to Configuration

The right line depends on strip width, lip material, target output, and whether the buyer already owns profile extrusion equipment. The table below converts common demand statements into a recommended configuration on the Faygo platform.

Table 7. Demand to configuration recommendation
Demand Recommended line Lip material Why
Start-up, narrow interior stripsCompact twin 51 plus single 30Soft PVCLowest entry cost, enough for 6 to 20 mm
Standard exterior weather stripStandard twin 65 plus single 45TPE-S with UV packageBalanced output and weather life
Harsh climate, long lifeHigh-output twin 65 plus single 45TPV or EPDM-like TPEVery low compression set, UV stable
High volume, multiple cavitiesHigh-output, six-cavity dieTPE-S or TPVMaximizes meters per minute
Already own PVC profile lineAdd single-screw plus co-extrusion dieMatches existing baseReuses calibration and haul-off
Frames plus gaskets togetherWindow profile line plus strip lineShared PVC baseOne platform, one spare-parts list

If the demand is uncertain, Faygo’s consulting team can model output from the target meters per minute and strip weight, then propose the smallest line that meets it, so the buyer does not pay for unused cavity count or screw diameter. Capacity expansion later is handled by adding cavities or a larger screw rather than replacing the whole line.

Các ngành ứng dụng and End Products

Sealing strips made on this line serve every building envelope that needs a weather barrier. The main application industries are:

Residential and commercial windows. uPVC, aluminum, and wood-aluminum windows use clip-in barb and bulb seals to block air infiltration and rain. A well-made co-extruded strip keeps the frame quiet and dry and cuts heating and cooling loss at the gap.

Entry and balcony doors. Swing, sliding, and folding doors use dual-lip and wiper seals. The soft lip compresses against the threshold while the base stays locked in the door leaf groove, which is where waterproof sealing is decided.

Curtain walls and facades. Large glazed facades rely on compression seals between glazing and frame. Because these seals see full sun and wind load, TPV or TPE-S lips are preferred for long service life.

Automotive and transport. Although this article focuses on architectural profiles, the same co-extrusion technology produces cabin and door seals for vehicles, trains, and buses where low-temperature flexibility and ozone resistance matter.

Industrial and cold-storage enclosures. Cold rooms and clean rooms need gaskets that stay flexible at low temperature and resist cleaning chemicals, which points to TPV lips on a rigid PVC or co-extruded base.

Solar and outdoor enclosures. PV module frames and outdoor cabinets use weather strip to keep dust and moisture out of sensitive equipment, again favoring UV-stable lip materials.

Across these industries the common requirement is a strip that installs in one pass, stays bonded, and survives years of compression and weather. That is exactly the problem co-extrusion solves, and it is why Faygo positions the line as a waterproof sealing processing system rather than a simple profile extruder.

Standards, Quality Control, and Weather Resistance Testing

Architectural sealing strips are governed by material and performance standards. In China the key reference is GB/T 12002, the standard for plastic sealing strips used on doors and windows, which sets requirements for hardness, tensile strength, elongation, compression set, heat aging, and ozone resistance. Products intended for export are usually checked against the relevant ISO methods for rubber and plastic weather strip, and against regional building codes that cite weather tightness and air permeability.

Quality control on a Faygo line covers three layers. First, incoming compound is verified for filler load, stabilizer type, and melt flow rate so the barrel and die see a consistent melt. Second, the line is run during the 72-hour pre-delivery test to confirm steady output, stable dimensions, and a bonded interface with no delamination. Third, sample strips are cut and sent for accelerated weather testing: heat aging to confirm hardness change stays within limit, ozone chamber for crack resistance, and a UV cycle for color and surface change.

Độ nén là chỉ số quan trọng nhất trong lĩnh vực. Lớp mút có độ nén thấp sẽ trở lại hình dạng sau khi bị nén trong nhiều năm, vì vậy cửa hoặc cửa sổ sẽ tiếp tục khóa. TPV và TPE giống EPDM dẫn đầu ở đây; nhựa hóa mềm PVC chỉ được chấp nhận khi lớp mút được tải nhẹ và được bảo vệ. Faygo ghi lại vật liệu lớp mút và kết quả thử nghiệm với mỗi dây chuyền để người mua có thể chứng minh tuân thủ tiêu chuẩn GB / T 12002 hoặc phương pháp ISO tương đương.

Kiểm soát kích thước là lớp thứ hai. Mũi nhọn hoặc bóng nhấn ống vào vết lõm mô hình phải giữ độ lệch, hoặc thanh sẽ rơi ra hoặc không được gắn. ống sấy và một ống sấy được điều chỉnh giữ tính chất này trong một khoảng chừng, và Faygo ghi lại kích thước đã thực hiện đối với bản vẽ của khách hàng trước khi vận chuyển.

Installation, Commissioning, and Service Support

Buying the line is only half the project. Faygo, a Wanplas factory, supplies the full path from layout to stable production. The support covers:

tư vấn nhà máy Water and electricity design, factory site layout with 3D workshop design, worker configuration and training, and new factory construction as a turnkey project. For plants with older equipment, Faygo offers old machine replacement with a plan that targets zero downtime, and capacity expansion that removes bottlenecks to roughly double output.

Turnkey delivery. Customized line design from the strip cross-section, rigorous quality control with the 72-hour test, and end-to-end service covering selection, design, manufacturing, installation, commissioning, training, and maintenance.

Spare parts and warranty.Chính sách của tập đoàn Wanplas cung cấp 500 USD phụ tùng miễn phí mỗi năm cộng với thay thế phụ tùng bị hư hỏng trong thời hạn bảo hành. Điều này giúp một dòng duy trì hoạt động mà không cần một kho hàng lớn, điều này quan trọng đối với các nhà máy nhỏ và vừa.

Remote operation and support. The PLC and HMI record process recipes and operating data, and Faygo offers 24/7 online technical support plus remote monitoring so engineers can read PLC data and respond to abnormal conditions without a long travel delay. Recipe storage on removable media lets a new strip be produced by loading a saved parameter set.

Open factory. Wanplas welcomes customer visits to the Zhangjiagang base. Seeing the FAYGOPLAST workshop, the calibration tables, and a running line before purchase reduces the risk of mismatch between the ordered line and the real product.

Commissioning follows a fixed sequence: install and level the extruders and downstream, connect utilities, dry and load the compounds, run the die with a trained operator, tune temperatures and speeds to the recipe, verify dimensions on the calibration table, then run the 72-hour test and cut sample strips for the weather test. Training covers daily operation, die cleaning, haul-off belt care, cutter setup, and the recipe system so the customer team can change strip types without outside help.

Common Defects, Causes, and Preventive Maintenance

Mặc dù một dây chuyền co-nhuộm được xây dựng tốt cũng có những khiếm khuyết đặc trưng khi một tham số rơi lệch. Biết nguyên nhân sẽ cho phép người vận hành sửa chữa dải trước khi chất phế thải tích tụ. Những khiếm khuyết dưới đây là những khiếm khuyết thường thấy trên các dây chuyền dải kín, cùng với những thói quen bảo trì giúp chúng tránh được.

Delamination at the hard-soft interface.Hư hỏng nghiêm trọng nhất là một môi bị bong ra khỏi nền. Nó được gây ra bởi sự khác biệt độ nhớt giữa hai chất lỏng, bởi nhiệt độ khuôn quá thấp ngăn cản sự kết dính, hoặc do sự ô nhiễm ở bề mặt tiếp xúc. Cách khắc phục là cân bằng các đầu ra của trục đơn và trục đôi để hai chất lỏng gặp nhau với độ nhớt tương ứng, tăng nhiệt độ mặt đất khuôn một chút và giữ cho cả két sàng và ống đều sạch. Một lượng nhỏ lớp liên kết hoặc một loại TPE tương thích cũng giúp tăng độ bám dính.

Bóng không tròn hoặc mép bị biến dạng. A bulb that flattens or a fin that curls comes from uneven cooling or from haul-off tension that is too high for the soft lip. The calibration table must cool the base first and the lip last, and the caterpillar pressure should be set just high enough to grip. Symmetric spray nozzles and a longer calibration table are the usual corrections on wider strips.

Surface streaking or die lines.Đường dọc theo thanh thường có nghĩa là máy nén bị bẩn, một khu vực chết nơi PVC phân hủy hoặc một kết hợp bột. Cách khắc phục là làm sạch máy nén thường xuyên bằng công cụ thích hợp, một bánh răng cân bằng để tránh các khu vực tắc nghẽn và sàng lọc hợp chất trước khi đưa vào. Kiểu thiết kế bánh răng kép của Faygo nhấn mạnh các khối khuấy tự làm sạch để chất phân hủy không tích tụ trong ống.

Dimension drift on the locking barb. If the strip no longer inserts or falls out, the calibration sleeve has worn or the haul-off speed has drifted against extruder output. Recurring dimension checks against the customer drawing, sleeve inspection, and closed-loop speed synchronization between extruder and haul-off prevent this. The PLC recipe stores the proven speed so the set point is not guessed after a changeover.

Đỏ hoặc trắng ngoài trời. This is a material and stabilizer issue rather than a machine fault. It appears when the lip lacks a UV package or the base lacks enough titanium dioxide. Choosing TPV or TPE-S with a rated UV stabilizer and a base with the right pigment load removes the problem at the recipe stage, which is why the material selection in an earlier section matters as much as the hardware.

Bảng kế hoạch bảo trì dự phòng. A simple weekly and monthly routine keeps the line at high overall equipment effectiveness. Weekly: clean the die and hopper throat, check haul-off belt tension and wear, verify cutter blade sharpness, and review the recipe against the running parameters. Monthly: inspect the calibration sleeve for scoring, check barrel and gearbox temperatures against baseline, lubricate the haul-off guides, and back up the recipe files. Quarterly: review screw and barrel wear with a process check, calibrate the loss-in-weight feeder, and confirm the vacuum calibration level. Because Wanplas supplies USD 500 free spare parts each year and warranty replacement, worn belts, blades, and seals are replaced without a large held inventory. The 24/7 remote support lets Faygo engineers read the PLC data and suggest correction before a small drift becomes a batch of scrap.

Thói quen bảo trì này là điều khiến một thử nghiệm trong nhà kéo dài 72 giờ trở thành nhiều năm sản xuất ổn định. Các nhà mua hàng tuân theo nó thường giữ dây chuyền hoạt động với hiệu suất sử dụng cao và tránh hai sự cố đắt nhất: bong tróc giao diện và rơi lệch kích thước, cả hai đều có thể khắc phục bằng cách sửa chữa sớm nhưng tốn kém khi một cuộn hoàn chỉnh bị làm sai.

Câu hỏi thường gặp

What is the difference between a sealing strip co-extrusion line and a normal PVC profile line?

A normal PVC profile line uses one twin-screw extruder to make a single-material profile. A sealing strip co-extrusion line adds a second single-screw extruder and a co-extrusion die so a soft lip is bonded to a rigid PVC base in one pass. The calibration table, haul-off, and cutter are similar, but the die and the second extruder are what make the soft seal.

Can I run both PVC and TPE on the same line?

Yes. The twin-screw extruder plasticizes the rigid PVC carrier while the single-screw extruder plasticizes the TPE or soft PVC lip. They meet only at the co-extrusion die, so each material stays in its own barrel at its own temperature. The recipe system stores a parameter set for each material pair.

Which lip material should I choose for exterior doors?

For exterior and harsh-climate use, choose a TPV or TPE-S lip with a UV stabilizer package. Plasticized soft PVC is the lowest-cost option and works for interior or sheltered gaskets, but it hardens faster outdoors. The lip material decides weather life more than the base does.

How wide a strip can the line produce?

The Faygo platform covers strip widths from about 6 mm to 50 mm, with custom cross-sections supported through die design. Wider or multi-cavity strips use a larger screw and a longer calibration table. The exact limit is set after Faygo reviews the cross-section drawing and the target meters per minute.

What output can I expect in meters per minute?

Tốc độ đường dây dao động từ khoảng 1 m / phút trên một đường dây nhỏ gọn đến 10 m / phút trên một đường dây có năng suất cao, với sản lượng vật liệu tổng hợp từ 40 kg / h đến 200 kg / h. Cạnh tranh thực sự là khả năng làm lạnh và độ cứng của môi trường mềm, không phải kích thước của máy nén. Các khuôn nhiều khoang nâng cao năng suất mà không làm tăng tốc độ đường dây.

Does the line meet Chinese and international standards?

Dây chuyền Faygo được chứng nhận CE và ISO, và các dải thử có thể được kiểm tra so với GB/T 12002 cho các dải kín kiến trúc Trung Quốc và các phương pháp kín khí ISO phù hợp cho xuất khẩu. Faygo ghi nhận độ cứng, độ co rút, lão hóa nhiệt và kết quả chống ozone với mỗi lần giao hàng.

What if I already have a PVC profile extruder?

You can usually add a single-screw extruder, a co-extrusion adapter, and a new die to your existing calibration table and haul-off, which is the lowest-cost way to start making sealed strips. Faygo reviews your current layout before recommending an add-on versus a full new line.

How long does commissioning take and what training is included?

Commissioning time depends on strip complexity and utility readiness, but the 72-hour pre-delivery test already proves the line before it ships. On-site commissioning covers installation, recipe tuning, dimension verification, and operator training for daily running, die care, haul-off maintenance, and recipe changeover.

Talk to Faygo About Your Sealing Strip Line

If you are specifying a PVC door and window sealing strip co-extrusion line for architectural profile waterproof sealing, Faygo, a Wanplas factory, can design the line from your strip cross-section and target output, build it on the CE and ISO certified FAYGOPLAST platform, and prove it with a 72-hour test before delivery. Share your cross-section drawing and required meters per minute, and the team will return a configuration with the right twin-screw and single-screw set, die cavity count, calibration length, and a documented process recipe. You are also welcome to visit the Zhangjiagang workshop to see a running line and discuss factory layout, training, and capacity expansion with the engineering team.

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Nhận Báo Giá
Nhận Báo Giá