BAOD EXTRUSION (Jiangsu Baodie Automation Equipment Co., Ltd.), founded in 2002, is dedicated to the professional design, custom engineering, and manufacturing of premium plastic extrusion machinery. Leveraging over 25 years of accumulated engineering expertise from our roots established by the KINGSWEL GROUP in Taiwan since 1999, we have structured a state-of-the-art manufacturing core in Mainland China.
By integrating advanced machinery design methodologies from European and Taiwanese manufacturing schools, BAOD is positioned as a tier-1 partner for automotive seal profile extrusion, medical micro-bore catheter fabrication, and complex multi-layer co-extrusion technology.
Continuous R&D in plastic extrusion mechanics.
Dedicated production floor, assembly, testing & QA.
Engineers, PLC programmers, and international technicians.
At the core of modern polymer processing, the single screw extruder plays a fundamental thermodynamic and mechanical role. It is designed to take solid thermoplastic pellets, compact them, melt them through a combination of barrel conduction heating and internal mechanical shear, and pump the homogeneous melt through a die at precise flow rates and uniform pressures.
Unlike twin screw extruders which rely heavily on intermeshing shear profiles and are primarily used for compounding and dry-blend powder processing, the single screw system excels in profile stability, high-pressure output generation, and high-tolerance tube or sheet fabrication. Because of this, it remains the standard choice for manufacturing precision medical tubing, automotive hoses, co-extruded seal profiles, and optical lampshades.
To maximize the physical capabilities of an extrusion line, custom screw engineering is essential. The screw's Length-to-Diameter (L/D) ratio and compression ratio must be custom-configured based on the polymer's unique rheological profile. For example, processing heat-sensitive polymers like Rigid PVC requires low compression ratios (typically 1.8:1 to 2.2:1) and a lower shear screw profile to prevent material degradation. In contrast, processing crystalline materials like PA66 (Nylon) or Polyethylene (PE) demands longer L/D ratios (usually 30:1 or 33:1) and barrier flight geometries to ensure complete melting and stable plasticization.
BAOD Extrusion implements specialized barrier screws with Maddock mixing elements to improve melt homogeneity. This layout separates the un-melted polymer solid bed from the melted pool, preventing solid bed break-up and reducing output fluctuations to less than ±0.5%. Combined with bimetallic barrel treatments (using nickel-based tungsten carbide alloys), our components provide 3 to 5 times the operational life compared to traditional nitrided nitralloy steels.
In modern plant setups, energy efficiency is as critical as mechanical stability. BAOD uses high-torque permanent magnet AC synchronous motors paired with variable frequency drives (VFD). This configuration yields energy savings of 15% to 25% compared to traditional asynchronous AC induction motors. This power is routed through a heavy-duty, high-thrust helical gearbox featuring integrated oil-cooling loops. This setup sustains stable operation even when running against back-pressures exceeding 400 bar.
Choosing a professional manufacturer in China, specifically within the industrial clusters of Jiangsu and the Yangtze River Delta, offers global buyers a clear competitive advantage. Over the past two decades, China's precision manufacturing supply chain has matured from a cost-focused center to a hub of technical innovation.
The density of auxiliary manufacturing providers in the region allows factories like BAOD to source premium raw materials, specialized heat treatments, and CNC components with short lead times. By coupling this supply chain agility with advanced Taiwan-engineered design methods and German PLC control technologies, Chinese manufacturers deliver systems that perform on par with European machinery at a lower initial capital investment.
Used to produce multi-lumen catheters, IV lines, and micro-bore tubes from medical-grade PVC, TPU, and PE. Features include micro-metric outer diameter stability down to ±0.02 mm and class 10,000 cleanroom-ready system designs.
Dedicated multi-layer co-extrusion for TPV and PVC weather strip sealing, fuel vapor lines, and cooling tubes. Supports inline metal carrier inserts and glass-fiber reinforcement.
Extrusion lines tailored for PA, PP, and PE single-wall corrugated tubes. Used to protect wiring harnesses in automotive engine bays, EV battery packs, and structural cabling.
Optimized for PC, PMMA, and PS optical extrusion, producing dual-color, frosted, or clear diffusion lampshades with clean polymer transitions and zero surface defects.
When multinational procurement groups source extrusion systems from overseas, they look beyond initial purchase prices. Compliance with global manufacturing protocols is essential to ensure long-term equipment stability and operator safety.
BAOD addresses these requirements by building our systems to comply with international regulations. Every extrusion line features CE certification, standardized circuit layout designs, and localized electrical options (such as UL/CSA-approved Siemens or ABB switchgear). Our factory performs rigorous Factory Acceptance Testing (FAT) with online raw material testing, digital sensor calibrations, and telemetry analysis before shipping.
Additionally, we integrate remote industrial router systems. This allows our technical staff to provide online diagnostics, modify PLC logic, and analyze system health anywhere in the world, reducing downtime.
The plastic extrusion landscape is transitioning toward digital automation and sustainable production. Here are the trends driving our ongoing research and development:
Held at the National Exhibition and Convention Center (Shanghai), BAOD EXTRUSION presented "Smart Extrusion · High-Efficiency Innovation" solutions, showcasing new developments in precision control, energy saving, and bio-polymer compatibility.
In industrial demolition and mining, detonating tube safety and wall-thickness uniformity are critical parameters. Our specialized single screw design delivers consistent material melt and diameter controls for demanding operating conditions.
This technical comparison highlights how modern Chinese manufacturing designs match European machinery parameters in multi-lumen micro-catheter applications, focusing on vacuum controls and downstream precision pullers.
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