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Advanced Plastic Extrusion
Machinery Solutions

Qingdao Interplast Machinery Co., Ltd. – Your trusted partner in plastic pipe, sheet, profile, and recycling line manufacturing with over 20 years of innovation and global service.

Explore Our Machines

About Us

Qingdao Interplast Machinery Co., Ltd.

Located in the coastal city of Qingdao, Shandong Province, our company is strategically positioned near Jiaodong International Airport, offering convenient transportation, a beautiful environment, and a superior geographical advantage.

We specialize in the research and development of advanced plastic processing machinery, including sewage pipe equipment (internal ribbed, hollow wall winding, plastic steel winding), PE water supply and drainage pipe systems, PPR household water pipes, plastic sheet/board extrusion lines, and comprehensive plastic recycling solutions.

Backed by cutting-edge technology, high-quality engineering, and dedicated customer service, we deliver reliable, efficient, and innovative extrusion systems that generate strong economic and social benefits for our clients worldwide.

Learn More
20+
Years Manufacturing Experience
100+
Customer Satisfaction
18+
Countries Served
500+
Machines Delivered

Product Center

Discover our comprehensive range of high-performance plastic extrusion machinery designed for durability, precision, and efficiency across diverse industrial applications.

KRAH Machine

KRAH Machine

High-efficiency extrusion line for large-diameter structured wall pipes using the KRAH winding technology. Ideal for drainage, sewerage, and underground conduit systems.

Hollow Wall Spiral Pipe Machine

Hollow Wall Spiral Structured Wall Pipe Machine

Produces lightweight, high-strength hollow wall pipes with excellent ring stiffness. Suitable for stormwater management and large-scale infrastructure projects.

Rib Reinforced Spiral Pipe Machine

Rib Reinforced Spiral Pipe Machine

Designed for manufacturing reinforced spiral pipes with internal ribs for enhanced structural integrity and load-bearing capacity in demanding environments.

Double Wall Corrugated Pipe Machine

Double Wall Corrugated Pipe Machine

Produces flexible, crush-resistant double wall corrugated pipes used in cable protection, drainage, and automotive applications.

PE/PP Pipe Machine

PE/PP Pipe Machine

Versatile extrusion line for producing high-density polyethylene (HDPE) and polypropylene (PP) pipes used in water supply, gas distribution, and industrial fluid transfer.

PVC Pipe Machine

PVC Pipe Machine

High-speed PVC pipe extrusion system for rigid and flexible PVC pipes used in plumbing, irrigation, and electrical conduit systems.

Recycling Crushing & Pelletizing Line

Complete recycling solution including cleaning, crushing, and pelletizing for post-industrial and post-consumer plastic waste into reusable granules.

Plastic Board Extrusion Line

Produces PP, PE, PVC, and WPC boards for construction, packaging, and industrial applications with precise thickness control and surface finish.

PVC Window & Door Profile Machine

High-precision extrusion line for multi-chamber PVC profiles used in energy-efficient windows and doors.

3PE Steel Pipe Anti-Corrosion Machine

Coating system for triple-layer polyethylene (3PE) protection of steel pipes used in oil, gas, and water transmission pipelines.

TPU/PU/PVC Steel Reinforced Ventilation Hose Machine

Produces flexible, abrasion-resistant ventilation hoses with steel helix reinforcement for industrial air handling and dust extraction.

XPS Insulation Board Machine

Extrusion line for producing extruded polystyrene (XPS) foam boards used in building insulation, cold storage, and foundation applications.

Why Choose Interplast?

Advanced Technology

Our machines integrate the latest automation, control systems, and energy-efficient designs to ensure optimal performance, minimal downtime, and maximum output.

Durable & Reliable

Built with high-grade materials and precision engineering, our equipment delivers long service life, consistent quality, and low maintenance requirements.

Global Support

We provide comprehensive installation, training, and after-sales service with multilingual engineers available worldwide to support your operations.

20+
Years in Industry
500+
Machines Installed
18+
Countries Served
98%
Customer Retention

Customer Cases

Real-world applications of Interplast machinery delivering value across continents.

PE/PP/ABS Sheet Line Testing

Successful commissioning of a 4000mm wide plastic sheet extrusion line for construction panel manufacturing in Southeast Asia.

4000mm Hollow Wall Spiral Pipe

Installation of a high-capacity hollow wall spiral pipe system using Weholite similar technology for municipal drainage in the Middle East.

PE Rod Extrusion Machine

Commissioning of PE rod production line before shipment to South America for industrial component manufacturing.

Get in Touch

Ready to upgrade your plastic processing capabilities? Contact Qingdao Interplast Machinery today for expert consultation and customized solutions.

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