Explore our industrial-grade, precision-designed plastic screw extruders and ancillary units built for high output and tight tolerance specifications.
Founded in 2002, BAOD EXTRUSION (Jiangsu Baodie Automation Equipment Co., Ltd.) has dedicated itself to the design, manufacturing, and distribution of state-of-the-art plastic screw extruder lines and auxiliary machinery. Our technological foundation spans back to Taiwan, where our team accumulated 18 years of specialized engineering experience in high-output, close-tolerance machinery design. Under the strategic investment of the KINGSWEL GROUP, we established our modern manufacturing hub in Mainland China in 1999 to merge high-tier engineering blueprints with the structural efficiencies of the Chinese industrial ecosystem.
Our core mission revolves around providing systemic solutions for polymer processors who require exceptional consistency. Rather than offering basic off-the-shelf hardware, we engineer bespoke lines that achieve micron-level tolerances, high melt homogeneity, and reduced energy footprints.
Our Incessant Focus Areas for Research & Development:
The global demand for high-performance plastic extrusions has shifted dramatically from bulk commodity profiles to high-complexity, multi-layered products. Industries such as automotive manufacturing, medical devices, defense, aerospace, and high-speed electrical infrastructure require specialized components that cannot be reliably produced on low-tech machinery. A typical plastic screw extruder is no longer just a melting machine; it is the nucleus of a precision-controlled thermodynamic process.
Fluctuations in polymer raw material quality, escalating energy costs, and stringent international standards (such as REACH, RoHS, and medical-grade certifications) force modern processors to seek advanced extrusion solutions. The target is clear: minimize material waste (scrap rate) and lower kilowatt-hour usage per kilogram of extruded product.
In sectors like automotive fluid handling (e.g., fuel lines, cooling hoses) and medical tubing, the dimensions of the final products must remain within a fraction of a millimeter. Meeting these metrics requires stable pressure control within the extruder barrel, smooth screw RPM regulation, and integrated gravimetric dosing units to monitor polymer mass flow in real time.
To understand why Chinese factories like BAOD EXTRUSION can deliver high-level systems, one must analyze the raw physics and engineering principles behind our screw extruder design. The core performance of an extruder lies within its screw geometry, drive control system, and thermal distribution capabilities.
Standard steel is insufficient for processing modern composite materials, engineering plastics, or corrosive polymers like PVC. At BAOD, we construct our extruder screws utilizing premium 38CrMoAlA alloy steel. The screws undergo a multi-step thermal treatment protocol, including high-temperature quenching, tempering, and a precision gas nitriding process. This achieves a nitrided layer depth of 0.5–0.8 mm and a surface hardness exceeding HV950, granting the screw superior abrasive and corrosive wear resistance.
For highly abrasive materials (such as those filled with glass fiber or mineral flame retardants), we offer custom bimetallic barrels and screws. A specialized wear-resistant alloy coating is centrifugally cast onto the inner wall of the barrel and the flight crests of the screw, significantly extending the service life under high-wear conditions.
A screw is divided into three critical zones: the Feed Zone, the Compression Zone, and the Metering Zone. The length-to-diameter (L/D) ratio is carefully engineered based on the target polymer:
Industrial manufacturing demands vary by geographic location and application segment. BAOD Extrusion systems are optimized for specialized, high-value end products rather than basic low-grade piping.
Modern automotive designs require sealing strips that display excellent elastomeric recovery, weatherability, and aesthetics. Our co-extrusion systems can integrate solid TPV/PVC, foamed sponge compounds, and metal-clip reinforcements in a single pass. Precision control over the die-head temperature and melt pressure ensures that complex profiles do not distort during cooling.
Medical tubes (catheters, IV lines, multi-lumen tubing) are critical life-support elements that require sterile, highly stable production. Our specialized medical-grade extrusion lines feature vacuum calibration and closed-loop OD (Outer Diameter) monitoring to produce tubes with tolerances as tight as ±0.01 mm, meeting USP Class VI safety protocols.
Under-the-hood automotive applications demand multi-layer hoses (often combining PA, ETFE, and specialized adhesives) to handle aggressive fuels and coolants without permeation. BAOD multi-layer co-extrusion technology enables up to 5-layer hose construction with uniform wall thickness and excellent interlayer adhesion.
Used in cable protection and chemical drainage networks, corrugated pipes must have high ring stiffness and low weight. Our high-speed single-wall corrugators utilize specialized forming blocks and vacuum-assisted cooling structures to achieve continuous extrusion at high linear speeds without fracturing the peaks of the corrugation.
When global buyers search for "China Plastic Screw Extruder Factories", the primary consideration extends beyond lower initial equipment costs. The true advantage lies in the comprehensive manufacturing ecosystem that Chinese factories offer.
Jiangsu province is the heart of China's high-precision machinery manufacturing cluster. From raw alloy steel casting to high-efficiency motor fabrication, raw material refining, and electronic component integration, all critical resources are located within a 150-kilometer radius of our factory. This minimizes logistics delay times and optimizes production.
Our origins as part of the KINGSWEL GROUP in Taiwan mean our engineering blueprints follow strict global criteria. We combine this technical background with mainland China's efficient manufacturing capabilities, enabling us to deliver European-quality machinery configurations at competitive capital investment levels.
Standard European equipment manufacturers often quote 9 to 12 months for highly customized projects. BAOD’s integrated in-house design team, working with advanced CNC machining centers, can shorten custom design, assembly, and testing phases to 12–16 weeks without compromising mechanical integrity.
A closer look at the key extrusion systems engineered inside our 16,000 m² manufacturing plant.
Acquiring high-performing machinery is only half the journey. For complex, multi-system installations, local commissioning, reliable electrical compliance, and ongoing parts support are essential to minimize downtime.
Every machine leaving the BAOD assembly line is engineered in compliance with strict international regulations. We configure our controls and drive enclosures to align with CE (Conformité Européenne) directives and UL/CSA standards for North American markets, ensuring problem-free local inspections and safety certifications.
To prevent prolonged downtime, our systems are built with international components (such as ABB/Siemens AC drives, Omron temperature controllers, and Schneider contactors). Additionally, our integrated PLC control cabinets feature remote access units, allowing BAOD engineers to troubleshoot or optimize parameters online.
Technical guidance and expert answers to assist in evaluating plastic screw extruder line setups.
Stay informed about our latest technical achievements, global exhibitions, and industrial case studies.
From April 21–24, CHINAPLAS 2026 was successfully held at the National Exhibition and Convention Center in Shanghai. BAOD EXTRUSION showcased its latest R&D achievements, presenting "Smart Extrusion & High-Efficiency Innovation" solutions that address modern production demands.
Read More +
In modern mining and infrastructure demolition, precision detonating tubes are critical safety components. BAOD EXTRUSION has emerged as a top-tier provider for customized lines, ensuring consistent wall thickness and high tensile strength.
Read More +
This technical report evaluates mechanical performance and tolerance control, comparing China-engineered multi-lumen catheter lines with classic European systems to analyze cost-performance metrics.
Read More +
Ensuring compliance with IATF 16949 automotive standards requires comprehensive quality management. Learn how BAOD incorporates verification systems across all levels of production.
Read More +
As electric vehicles demand quieter cabin environments, sealing systems must evolve. This paper details how BAOD's new co-extrusion technology enables lightweighting and structural improvements in automotive profiles.
Read More +Discover our range of single-screw extruders, precise downstream pullers, cutting stations, and winding units.
Baodie
