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.
この記事では、ラインの構成方法、各セクションの役割、ストリップのジオメトリがどのマシンレイアウトに対応するか、材料と耐候性の相互作用、単一材料押出と比較したコエクストルジョン、そして特定の建築プロファイルに最適な構成を選択する方法について説明します。また、中国と国際的にドアと窓のシーリングストリップを規定する規格についても説明し、選択ガイド、適用産業、サービスサポート、およびよくある質問の一覧でまとめます。
目次
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- What a PVC door and window sealing strip co-extrusion line delivers
- コエクストルジョンプロセスのステップごとの仕組み
- 代表的な生産ラインの構成と技術仕様
- ストリップの種類と、それに必要な機械構成
- 材料、耐候性、および紫外線耐性
- コエクストルジョンと単一材料のエクストルジョンの比較
- Faygo PVC profile co-extrusion product spotlight
- 選択ガイド：需要と構成のマッチング
- 適用分野と最終製品
- 規格、品質管理、および耐候性試験
- 設置、試運転、およびサービスサポート
- Frequently asked questions
- Faygo にお問い合わせください
コエクストルジョンプロセスの仕組み
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 単一スクリュエキストラクター 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 校正と冷却セクション as one piece.
原材料からカットストリップまでの全プロセスは、次のように進みます。
1. 材料の準備と供給。 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.並列回転式ツインスクリューのバレル内で、PVCは175～200℃の溶融温度で混合、プラスチケーション、およびホモジネーションされます。シングルスクリューのバレルは、エラストマーの熱分解を防ぐために低い温度で（しばしば160～185℃）柔らかい材料をプラスチケーションします。スクリューの設計、L/D比、およびバレル温度プロファイルは、両溶融物が適切な粘度でダイに到達するように調整されます。
3. コエクストルジョンダイダイはラインの中心です。ダイは2つの溶融物を受け取り、それらを合成し、柔らかいリップを剛性ベースにカプセル化またはラミネートします。よく設計されたダイは、せん断を低く保ち、PVCが分解する可能性のある停滞領域を回避し、オペレーターがシングルスクリュー出力を変更することでリップの厚さを独立して調整できます。複数のキャビティのダイは、並列にいくつかのストリップを形成してスループットを上げることができます。
4. 真空校正と冷却。ダイのすぐ後、プロファイルは真空校正テーブルを通過します。真空校正スリーブは、剛性ベースの外寸を厳密な許容範囲内に保ち、スプレーまたは浴式冷却が形状を設定します。シーリングストリップの重要な寸法は、プロファイル溝にロックされるバーブまたはバルブであり、校正スリーブはその特徴をミリメートル単位で保つように設計されています。
5. Haul-off.カタプラーのハウルオフは、ソフトリップを破損せずにストリップを掴み、一定のライン速度で前方に引きます。ソフトリップにほとんどの剛性がないため、ハウルオフは幅全体に均一な力を加えなければなりません。多くのラインでは、幅広いベルトまたはデュアルトラックデザインが使用されています。ライン速度は出力の主なレバーであり、冷却能力とリップの溶融強度によって設定されます。
6. カットと収集。サーボ駆動のフライナイフまたは固定長カッターが連続ストリップをコイルまたは長さに切り離します。自動窓生産では、ストリップは通常ロールに巻き取られます。交換市場のガスケットの場合は、長さにカットされます。カットされた部分は検査され、梱包され、次のプロセスに移されます。
Typical Production 回線構成s and Technical 仕様書s
シーリングストリップコエクストルージョンラインは、ストリップ幅、リップ複雑さ、および必要な出力によってスケールされます。次の表は、FaygoがFAYGOPLASTプロファイルプラットフォーム上で構築する3つの代表的な構成を示しています。これらは構成クラスであり、固定モデルコードではなく、各ラインはお客様のストリップ断面図と目標出力に合わせて設計されています。
| パラメータ | Compact line | Standard line | 高出力ライン |
|---|---|---|---|
| PVC carrier extruder | Parallel twin-screw 51 mm | 並列ツインスクリュー 65 mm | 並列ツインスクリュー 65 mm, high torque |
| Soft lip extruder | シングルスクリュー 30 mm | Single-screw 45 mm | Single-screw 45 mm, twin feed |
| Screw L/D ratio | Twin 40:1, single 25:1 | Twin 44:1, single 28:1 | Twin 48:1, single 30:1 |
| Co-extrusion die | Single or double cavity | Double or four cavity | Four or six cavity |
| Strip width range | 6 to 20 mm | 10 to 35 mm | 15 to 50 mm |
| Calibration table length | 3 m vacuum | 4 to 6 m vacuum | 6 to 9 m vacuum |
| ライン速度 | 1 to 4 m/min | 2 to 6 m/min | 3 to 10 m/min |
| Combined output | 40 to 70 kg/h | 70 to 120 kg/h | 120 to 200 kg/h |
| Haul-off type | Belt caterpillar | Wide belt caterpillar | Dual-track servo |
| カッター | Fixed-length saw | Servo fly knife | Servo fly knife, multi-station |
| コントロールシステム | PLC plus HMI | PLC plus HMI, inverter drives | PLC plus HMI, servo with data logging |
| Certification | CE, ISO | CE, ISO | CE, 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.
ストリップの種類と必要な機械構成
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.
| Strip type | Base material | Lip material | 推奨されるエクストラーダセット | Die and cooling note |
|---|---|---|---|---|
| Clip-in barb seal | Rigid PVC | TPE or TPV | Twin 51 + single 30 | Tight calibration sleeve for barb |
| Bulb weather seal | Rigid or semi-rigid PVC | Soft PVC or TPE | Twin 65 + single 45 | Symmetric cooling to keep bulb round |
| Fin or flap seal | Rigid PVC | Soft PVC | Twin 51 + single 30 | Low shear die, precise speed control |
| Multi-chamber carrier | Rigid PVC | TPE at one edge | Twin 65 + single 45 | Longer calibration, stiff base cooling first |
| Dual-lip compression seal | Semi-rigid PVC | TPE-S both lips | Twin 65 + single 45 twin feed | Two soft channels balanced in die |
| Wiper blade seal | Rigid PVC | Soft PVC | Twin 51 + single 30 | Thin 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 単一スクリュエキストラクター 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.
| 材料 | Hardness (Shore A) | Low-temp flexibility | UV and weather resistance | Compression set | Typical use |
|---|---|---|---|---|---|
| Plasticized soft PVC | 55 to 80 | Fair, stiffens below 0 C | Moderate, needs stabilizer | Higher | Indoor and mild-climate gaskets |
| TPE-S (styrenic) | 50 to 85 | Good down to minus 30 C | Good with UV package | Low to moderate | General exterior weather strip |
| TPV (EPDM-like TPE) | 60 to 85 | Excellent, minus 40 C | Excellent, UV stable | Very low | Harsh exterior, long-life seals |
| EPDM rubber | 55 to 80 | Excellent | Excellent | Very low | Premium co-extruded with PVC |
| Rigid PVC carrier | Shore D 70 to 80 | Brittle below minus 10 C | Good with TiO2 | N/A | Mounting 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.
天候耐性は、加速老化により確認されます：硬さ変化を確認するための熱老化、クラック耐性を確認するためのオゾン露出、および色と表面変化を確認するためのゼネオンアークまたは蛍光UVサイクル。GB/T 12002およびそれに対応するISOガイダンスが建築用シーリング製品に求めるように、このテストに合格したストリップは、日光や凍結解凍サイクルの数年後もシールを維持します。
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.
| 形状 | Single-material PVC strip | Separate lip inserted later | PVC plus TPE co-extruded strip |
|---|---|---|---|
| Sealing performance | Limited, hard lip | Good if lip stays in | Best, bonded soft lip |
| Process steps | One extruder | Extrude plus assemble | One pass, two extruders |
| Bond reliability | N/A | Can loosen or fall out | Molecular bond at interface |
| Material cost | Low | Medium | Medium |
| Equipment complexity | Low | Low plus assembly | Medium, two extruders and die |
| Weather life | Short outdoors | Medium | Long with TPV lip |
| スクラップとリワーク | Low | アセンブリより高い | 調整後低い |
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 単一スクリュエキストラクター 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、Wanplasの工場は、このシーリングテープラインの基盤となるFAYGOPLASTプロファイルプラットフォームを供給しています。2つの製品モジュールを以下に示し、その仕様表を示します。どちらも、Faygoの22年のパイプとプロファイル押出技術、8つの発明特許を含む13の国内特許、およびCEとISO認証を受けた製造に基づいています。どちらのラインも、配達前に72時間のテストを受けます。
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 単一スクリュエキストラクター 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.
| アイテム | 仕様書 |
|---|---|
| Carrier extruder | Parallel co-rotating twin-screw, 51 or 65 mm, L/D 40 to 48 |
| Lip extruder | Single-screw, 30 or 45 mm, L/D 25 to 30 |
| Drive | インバーターまたはサーボ、国際的にブランド化された電気部品 |
| Co-extrusion die | Hard plus soft, 1 to 6 cavities, adjustable lip thickness |
| Calibration | Vacuum calibration table 3 to 9 m, water spray and bath |
| Haul-off | Caterpillar, belt or dual-track, speed 1 to 10 m/min |
| カッター | Servo fly knife or fixed-length saw, coil or length out |
| コントロール | PLC with HMI, recipe storage, real-time parameter adjustment |
| Output range | 40 to 200 kg/h combined, 1 to 10 m/min line speed |
| Strip width | 6 to 50 mm, custom cross-section supported |
| Pre-delivery test | 72-hour continuous operation test |
| Certification | CE and ISO certified |
Faygo PVC Window プロファイル押出ライン
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.
| アイテム | 仕様書 |
|---|---|
| エクストラーダー | Parallel twin-screw, 51 to 80 mm, L/D 40 to 48 |
| Profile types | Window frames, door frames, decorative, WPC composite |
| Die and calibration | Multi-profile die, vacuum calibration, spray cooling |
| Haul-off | Caterpillar, synchronized with extruder |
| Cutting | Planetary or servo fixed-length cutter |
| コントロール | Intelligent control, free parameter setting, real-time adjust |
| Output | Scaled to profile weight and line speed |
| Factory base | FAYGOPLAST, Zhangjiagang, 26,650 sqm, 3 factories |
| Certification | CE and ISO certified, 72-hour test |
両モジュールとも、ターンキーシステムとして提供されます。Faygosのエンジニアリングチームは、お客様の断面図からダイを設計し、実際のストリップまたはプロファイル上で72時間のテストを実施し、生産が開始される前にプロセスレシピを文書化します。
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.
| Demand | Recommended line | Lip material | Why |
|---|---|---|---|
| Start-up, narrow interior strips | Compact twin 51 plus single 30 | Soft PVC | 最も低いエントリーコストで、6～20mmに対応します。 |
| Standard exterior weather strip | Standard twin 65 plus single 45 | TPE-S with UV package | Balanced output and weather life |
| Harsh climate, long life | High-output twin 65 plus single 45 | TPV or EPDM-like TPE | Very low compression set, UV stable |
| High volume, multiple cavities | High-output, six-cavity die | TPE-S or TPV | Maximizes meters per minute |
| Already own PVC profile line | Add single-screw plus co-extrusion die | Matches existing base | Reuses calibration and haul-off |
| Frames plus gaskets together | Window profile line plus strip line | Shared PVC base | One 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.
適用分野 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、アルミニウム、および木製アルミニウムの窓は、クリップインバーブとバルブシールを使用して、空気漏れと雨を防ぎます。よく作られたコエクストラデッドストリップにより、フレームが静かで乾燥し、隙間での暖房と冷却ロスが削減されます。
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.冷蔵室やクリーンルームでは、低温でも柔軟性を維持し、洗浄用化学物質に耐えるゴム製シールが必要です。これは、剛性なポリ塩化ビニルまたは共重合されたベースにTPV製のリップを使用することになります。
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.
これらの業界では、共通の要件は、1回の通過で取り付けできる、接着し続け、圧縮と天候に耐えるストリップです。これがコエクストルージョンが解決する問題であり、Faygoがラインを単純なプロファイル押出機ではなく、水密シーリング加工システムとして位置づける理由です。
Standards, Quality Control, and Weather Resistance Testing
建築用シーリングストリップは、材料と性能の基準に従います。中国では、主要な参照はGB/T 12002であり、ドアと窓に使用されるプラスチックシーリングストリップの標準であり、硬さ、引張強さ、伸び率、圧縮定常、熱老化、およびオゾン耐性に関する要件が定められています。輸出用の製品は、ゴムおよびプラスチック天候ストリップに関する関連するISO方法、および地域の建築基準に基づいて天候の堅牢性と空気透過性が検証されます。
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.
Compression set is the single most important field metric. A lip with low compression set returns to shape after being squeezed for years, so the door or window keeps sealing. TPV and EPDM-like TPE lead here; plasticized soft PVC is acceptable only where the seal is lightly loaded and sheltered. Faygo documents the lip material and the test result with each line so the buyer can show compliance to GB/T 12002 or the equivalent ISO method.
次は寸法管理です。プロファイル溝にロックされるバーブまたはバルブは、許容範囲内に保たなければ、ストリップが外れるか、挿入できません。真空校正スリーブと校正されたハウルオフは、この特徴を厳密な範囲内に保ち、Faygoは出荷前に顧客図面に対応した実寸を記録します。
設置, 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:
工場コンサルティング。 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.
予備品と保証。Wanplasグループのポリシーでは、毎年500米ドルの無償交換部品と破損部品の保証交換が提供されます。これにより、小規模および中規模の工場では、単一のラインを大規模な保有在庫なしで稼働させることができます。
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.
オープン工場。 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.
試運転は固定された順序で行われます：押出機と下流の設置および水準調整、ユーティリティの接続、混合物の乾燥とロード、訓練されたオペレータによるダイの実行、レシピの温度と速度の調整、校正テーブルでの寸法の確認、その後、72時間のテストの実行と天候テスト用のサンプルストリップのカット。トレーニングでは、日常的な操作、ダイの清掃、ハウルオフベルトのメンテナンス、カッターのセットアップ、およびレシピシステムについて説明します。これにより、お客様のチームは外部の支援なしにストリップタイプを変更できます。
Common Defects, Causes, and Preventive Maintenance
Even a well-built co-extrusion line shows characteristic defects when a parameter drifts. Knowing the cause lets the operator correct the strip before scrap accumulates. The defects below are the ones most often seen on sealing strip lines, together with the maintenance habits that keep them away.
Delamination at the hard-soft interface.最も深刻な欠陥は、基材から剥がれる唇です。これは、二つの溶融物の粘度の不一致、接着を妨げる過低なダイ温度、または界面の汚染によって引き起こされます。修正するには、単一スクリューとツインスクリューの出力をバランスさせて、二つの溶融物が同じ粘度で出会うようにし、ダイランド温度をわずかに上げ、ホッパーとバレルを清潔に保つ必要があります。また、少量のタイヤ層または互換性のあるTPEグレードも接着を助けます。
Out-of-round bulb or distorted lip. 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.ストリップに沿った線は、通常、汚れた型、PVCが分解した死んだ部分、または充填剤の凝集を意味します。対処法は、正しい工具を使用した定期的な型の清掃、停滞領域を避けるバランスのとれたねじ、供給前に混合物のスクリーニングです。Faygosのツインスクリュー設計は、分解された材料がバレル内に蓄積しないように、自己洗浄の混合ブロックを重視しています。
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.
Yellowing or chalking outdoors. 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.
予防保守計画。 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.
この保守手順は、72時間の工場テストを数年間の安定した生産に変えるものです。この手順に従う買い手は、通常、高容量利用率でラインを稼働させ、2つの最も高価な故障、すなわちインターフェースの離層と寸法の漂流を避けます。両障害とも、完全なコイルが誤ったものに作られたら高価ですが、早期の修正で回復可能です。
よくある質問
シーリングストリップ共押出ラインと通常のPVCプロファイルラインの違いは何ですか？
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 単一スクリュエキストラクター 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 単一スクリュエキストラクター 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?
ライン速度の範囲s from about 1 m/min on a compact line to 10 m/min on a high-output line, with combined material output from 40 kg/h to 200 kg/h. The real limit is cooling capacity and the melt strength of the soft lip, not the extruder size. Multi-cavity dies raise output without raising line speed.
Does the line meet Chinese and international standards?
Faygo lines are CE and ISO certified, and sample strips can be verified against GB/T 12002 for Chinese architectural sealing strips and the relevant ISO weather-strip methods for export. Faygo documents hardness, compression set, heat aging, and ozone results with each delivery.
What if I already have a PVC profile extruder?
You can usually add a 単一スクリュエキストラクター, 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.
