We produce PVC sealing strip production lines that deliver consistently shaped, flexible strips for windows, doors, automotive seals and industrial closures. Our solutions combine controlled extrusion, precision sizing and automated coiling so you get strips with stable cross-section profiles, excellent rebound properties and minimal flash. I collaborate with clients to select the right tooling, shore hardness targets and surface treatments necessary for temperature and chemical resistance.
Why choose our PVC-Sealing-Strip Production Line?
Sealing strips must deliver tight tolerances and long-term elasticity. Our lines emphasize accurate melt temperature control, high-precision calibration and online profile measurement to ensure each batch meets dimensional and mechanical specs. We include options for co-extrusion, foaming or sponge-like cores when improved insulation or compression recovery are required.
Products from these lines are widely used in building envelopes, refrigeration units and vehicle doors. We offer installation support, staff training and spare parts logistics to minimize downtime. For operational details and spare parts lists, review our technical documentation on your product page and then Contact us to request a quote or arrange a factory visit.
PVC sealing strip equipment is mainly used for the production of PVC material sealing strips, achieving large-scale production through extrusion molding technology. Its core equipment includes screw extruders, mold forming systems and cooling devices, which can meet the sealing requirements in fields such as doors and Windows and automobiles.
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Product Description
Single Screw extruder for PP/PE/PPR/PET/PER/PVC granules material
Single Screw extruder for PP/PE/PPR/PET/PER/PVC granules material is mainly composed of barrel screw, momentum driving system, heating, cooling, and electric controllers etc. It is imainly used in plasticizing and extruding of PVC, PE, PP, ABS, PS, PET pipes, plates, sheets, film, profiles, granulates and other plastic products.
Technical parameters:| Model | SJ-30 | SJ-45 | SJ-55 | SJ-65 | SJ-75 | SJ-90 | SJ-100 | SJ-120 | SJ-150 |
| Screw diameter(mm) | 30 | 45 | 55 | 65 | 75 | 90 | 100 | 120 | 150 |
| L/D | 25:1 |
| Screw rotation speed(r/min) | 140 | 120 | 100 | 90 | 85 | 75 | 70 | 60 | 60 |
| Main motor power(kw) | 4 | 7.5 | 11 | 15 | 22 | 37 | 45 | 55 | 75 |
| Barrel heating power(kw) | 3 | 6 | 9 | 12 | 18 | 30 | 36 | 42 | 56 |
| Center height(mm) | 1000 | 1100 | 1200 | 1300 |
| Plasticization capacity(kg/h) | 30 | 50 | 70 | 80 | 100 | 130 | 160 | 200 | 300 |
Application:
It is used for producing pvc sealing strip, the sealing strip is widely use in window and door profile, car industry. It is
composed of feeding system,extruder,water cooling system,haul-off unit,winding machine or double roller,electric control system and coordinated with different specification of moulds.This line is advanced in design,high in output,good in plasticization and low in energy consumption.The finished product is widely used in cars, windows, refrigerators, etc.
Processing Flow:
Raw material → Single-screw extruder →Extrusion mould →Vacuum calibration table → Haul-off unit→ Automatic cutter→ Stacker → Finished product inspecting & packing
Features :
- PLC control system is available
- All electrical components adopts famous brand : OMRON, ABB, SIEMENS etc
- Over current protective of motor
- With online protection film wrapping device.
High-Performance PVC Sealing Strip Production Lines
Investing in a reliable PVC Sealing Strip Production Line is essential for manufacturing durable weather stripping and edge banding. Qingdao Zhongrui Plastic Machinery Co., Ltd. specializes in engineering high-performance plastic extrusion machinery. Our equipment meets the rigorous demands of modern industrial applications. We design our extrusion machines to deliver exceptional output stability, ensuring every profile meets strict quality standards. By balancing reasonable pricing with high quality, we provide manufacturers with a competitive edge globally.
Types of PVC Sealing Profile Extrusion Machines
Choosing the right extrusion equipment depends on your specific material properties and profile designs. We offer versatile machines tailored to handle different flexibility levels. This ensures optimal performance for any manufacturing need.
Soft PVC Sealing Strip Extrusion Lines
For applications requiring high flexibility, our soft PVC sealing strip extrusion lines deliver outstanding results. We specifically engineer these machines to process flexible PVC compounds. They are the ideal choice for manufacturing weather stripping and flexible gaskets. Advanced temperature control and specialized screw designs prevent material degradation. This guarantees a smooth and consistent finish on every soft profile.
Rigid & Co-extrusion PVC Edge Banding Lines
Some projects demand structural rigidity or a combination of multiple material properties. Our rigid and co-extrusion PVC edge banding lines provide the perfect solution. Co-extrusion technology allows manufacturers to seamlessly combine soft and rigid PVC into a single profile. This is highly beneficial for complex sealing requirements in doors and windows. These advanced plastic profile production lines ensure strong adhesion between layers and precise dimensional accuracy.
Standard Process Flow of PVC Seal Strip Extrusion
Understanding the manufacturing process helps optimize your facility's output and maintain consistent product quality. Our machinery utilizes a highly automated control system. This streamlines the entire operation from raw material to finished product. Automation ensures high production efficiency and significantly reduces manual intervention.
- Raw Material Mixing: PVC resin is blended with additives, plasticizers, and stabilizers to achieve desired properties.
- Single/Twin Screw Extrusion: The mixed compound enters the extruder. Precise heating and shearing melt the plastic for uniform shaping.
- Vacuum Calibration & Cooling: The extruded profile passes through a vacuum sizing mold and cooling tank to lock in exact dimensions and prevent warping.
- Haul-off Machine: A specialized tractor unit pulls the cooled strip at a synchronized speed to maintain consistent thickness.
- Winding or Cutting: The finished strip is neatly wound onto rolls or cut to specific lengths for immediate packaging.
Technical Specifications of Our Extrusion Machinery
To help you evaluate our equipment, we have outlined the core technical parameters below. Our machines feature modular designs that allow for fast changeovers. This minimizes downtime when switching between different profile molds. Review the specifications you can expect from a high-quality precision PVC sealing strip production line.
| Technical Parameter | Specification Details |
| Extruder Configuration | Single Screw or Co-extrusion Setup |
| Screw Diameter | 45mm - 75mm (Customizable based on output needs) |
| Main Motor Power | 11kW - 37kW |
| Maximum Extrusion Output | 20kg/h - 150kg/h |
| Line Speed | 1m/min - 20m/min |
| Control System | Advanced PLC Automated Control / Standard Panel |
Why Choose Zhongrui for Plastic Extrusion Machinery?
Selecting the right machinery partner is just as important as the equipment itself. Qingdao Zhongrui Plastic Machinery Co., Ltd. stands out in the industry. We combine innovative engineering with unwavering customer support.
Patented R&D and Customized Solutions
Our experienced R&D team holds multiple patents in plastic extrusion technology. This reflects our commitment to continuous innovation. We understand that standard machines may not fit every unique profile design. Therefore, we specialize in providing customized solutions. From specialized screw geometries to custom calibration molds, we tailor every aspect. Our goal is to meet your specific production goals and material formulations.
7*24 Hours After-Sales Service & Global Export
We back our high-quality equipment with a highly skilled professional technical team. International buyers can rely on our extensive global export experience. We ensure smooth logistics and installation for every project. Furthermore, we provide comprehensive 7*24 hours after-sales service. Expert troubleshooting, maintenance guidance, and spare parts support are always available.
Industrial Applications of PVC Sealing Strips
The versatility of our extrusion machinery allows manufacturers to serve demanding industries. PVC sealing strips are critical components in numerous commercial and residential applications. They provide essential insulation, protection, and finishing touches. In the architectural sector, weather stripping ensures excellent thermal insulation and water resistance for doors and windows. The automotive industry relies on flexible and co-extruded seals to prevent dust and moisture ingress. Additionally, rigid and semi-rigid PVC edge banding provides durable finishes for furniture and cabinetry. Custom sealing profiles also protect sensitive industrial enclosures from environmental contaminants.
Frequently Asked Questions (FAQ)
Can you customize the PVC sealing strip production line for specific profile shapes?
Yes, our experienced R&D team specializes in providing customized solutions. We design and manufacture specific molds and extrusion configurations tailored to your exact profile requirements.
What kind of after-sales support do you provide for your extrusion machinery?
We offer comprehensive 7*24 hours after-sales service for all our clients globally. This includes technical support, installation guidance, and rapid troubleshooting by our highly skilled professional team.
Are your PVC seal strip extrusion machines energy-efficient?
Absolutely. We engineer our production lines with precision machinery and advanced automated control systems. This maximizes production efficiency while keeping energy consumption and raw material costs low.
How easy is it to operate the soft PVC edge banding line?
Our machines feature user-friendly, automated control systems designed for easy operation. Typically, just one or two operators can efficiently manage the entire production line.
Contact Us for Your Extrusion Needs
Ready to upgrade your manufacturing capabilities? As a leading PVC sealing strip production line manufacturer, Qingdao Zhongrui Plastic Machinery Co., Ltd. is committed to your success. We deliver equipment that drives your business forward. Contact us today to request a quote and discuss your specific profile requirements. Discover how our customized extrusion solutions can optimize your production efficiency.
+86-18561886575 (Mr.Wu) 
+8618561886575
238 Yangzhou West Road, Jiaozhou City, Qingdao City, Shandong Province