Explore our core precision extrusion hardware, designed for micro-tolerances and high throughput manufacturing.
Founded in 2002, BAOD EXTRUSION has dedicated over two decades to the design, manufacturing, and global sales of advanced plastic extrusion equipment. Our engineering DNA traces back to 18 years of high-end design and fabrication experience in Taiwan under the auspices of our parent entity, the KINGSWEL GROUP. In 1999, the group established our foundational manufacturing facility in Shanghai, transitioning into our current state-of-the-art facility in Jiangsu to better scale our high-efficiency manufacturing systems.
Today, BAOD stands as a premier authority in the polymer processing industry. We maintain a long-term research commitment to four core pillars of industrial extrusion technology:
An authoritative analysis of precision engineering protocols for HDPE, LDPE, and LLDPE processing.
Manufacturing high-quality, small-diameter polyethylene (PE) tubing demands absolute control over polymer melt temperature, pressure stability, and downstream cooling mechanics. Unlike large-diameter pipelines, small-diameter tubing (typically ranging from 1mm to 16mm outer diameter) features extremely thin wall profiles and high cooling sensitivity. Achieving dimensional tolerances of less than ±0.03mm requires integrated technology across the entire extrusion line.
At the heart of the extrusion line is the SJ Series Single Screw Extruder. Designed specifically for low shear heat generation and high output, our barrier screws feature L/D (length-to-diameter) ratios of 30:1 or 38:1. This optimized screw geometry ensures full chemical homogenization of the PE granules without degrading the polymer chains. We utilize dynamic gravimetric dosing feeders that sync with the extruder's Siemens servo motor drive, maintaining a constant melt flow rate regardless of variations in raw material bulk density.
The melt distribution inside the die head is critical to preventing eccentricity in the final tubing. BAOD utilizes spiral distributor die heads that split the PE melt stream into multiple micro-channels before reuniting them in the calibration zone. This configuration eliminates weld lines, ensures consistent radial thickness, and minimizes back pressure inside the die.
As the molten PE tube exits the die, it enters the custom Vacuum Calibration Cooling Table. Here, high-precision sizing sleeves (fabricated from wear-resistant copper alloys) mold the outer diameter. Our calibration system operates under a vacuum chamber with automated, closed-loop pressure valves. A deviation of just 2 mbar in the vacuum chamber can cause wall thickness variations; therefore, our PLC monitors and adjusts the vacuum levels in real-time, matching the rate of cooling water misting to lock the molecular matrix of the PE tube into place.
To maintain constant wall thickness, the linear speed of the puller must synchronize with the extruder's output. The TKB Series Precision Belt Puller features dual belt drives running on high-resolution servo systems to prevent slippage and deformation of the soft PE tubing. For final production, the FQ Series Rotary Fly Knife Cutter performs clean, burr-free cuts at high cycle rates, or the tubing is guided to our SPS-Dh Auto Precision Winding Displacement Coiler to prevent ovality on the spool.
Verified machinery lines in active production at our Jiangsu manufacturing plant.
Discover how our extrusion systems resolve precision manufacturing challenges across key global sectors.
Small-diameter plastic tubing is a critical component in many modern industrial systems. The design and customization of our extrusion lines target the specific requirements of four main industries:
Modern cars utilize PA (nylon) and PE tubes for fuel transfer, air brakes, EV battery coolant loops, and windshield washers. Our multi-layer extrusion systems process multi-material profiles (e.g., 3-layer, 5-layer, or 7-layer tubes containing EVOH or PVDF barrier cores) to meet stringent environmental standards like CARB and Euro 6 guidelines.
Medical tubes must be produced within cleanroom environments. BAOD delivers ISO Class 8 cleanroom-compliant extrusion machinery optimized for medical-grade PVC, polyurethane (PU), PE, and fluoropolymers. These systems manufacture high-precision single-lumen and multi-lumen tubes used for IV lines, oxygen transport, and cardiovascular catheters, maintaining tight tolerances down to ±0.01mm.
Fiber-optic cable installations utilize HDPE microducts for protection and pneumatic blowing. Our high-speed single-wall corrugated pipe and smooth PE tube extrusion systems manufacture microduct profiles that can withstand high pressure. Optional co-extrusion systems add internal silicone friction-reducing layers or external antistatic coatings.
How BAOD leverages the Yangtze River Delta manufacturing ecosystem to deliver high value.
Located in the heart of China's advanced manufacturing corridor, BAOD Extrusion leverages a robust local industrial cluster to optimize production. This concentration of component suppliers, raw material providers, and high-precision machining hubs allows us to maintain a reliable supply chain. We procure certified steel alloys, precision gearboxes, and control hardware at lower logistics costs, passing these efficiencies on to our customers.
Our 16,000m² manufacturing facility functions as a digital factory. Our design department utilizes advanced 3D FEA (Finite Element Analysis) to simulate thermal stress, fluid dynamics, and polymer degradation inside the extruder barrel before machining begins. This engineering preparation helps minimize assembly errors, speed up production runs, and ensure that every customer system is optimized for its target polymer.
Additionally, our manufacturing team uses advanced CNC machining centers to fabricate core parts in-house, including the barrel heating blocks, calibration chambers, and fly cutter units. This control over production helps maintain consistent build quality and reduces lead times compared to manufacturers reliant on external machine shops.
During the final assembly process, each line undergoes a rigorous testing protocol. We run real-world polymer trials at design throughput and line speeds, recording raw data from the PLC systems. Customers can review this information during Factory Acceptance Testing (FAT) via high-definition video feeds or in person at our facility.
Answers to common questions regarding line operation, material compatibility, and tolerances.
Insights into polymer extrusion trends, machinery developments, and industrial exhibitions.
BAOD EXTRUSION presented its latest R&D achievements at Booth 7.1C04 at the National Exhibition and Convention Center, showcasing "Smart Extrusion & High-Efficiency Innovation" solutions for modern processing plants.
In sectors ranging from mining to infrastructure demolition, the precision of shock tubing is paramount. Learn how BAOD designs customized detonating tube extrusion equipment to meet strict international safety standards.
An engineering comparison analyzing mechanical design and tolerance controls between premium Chinese manufacturers and European counterparts, outlining cost-to-performance metrics.
An analysis of compliance strategies, mechanical safety features, and product validation protocols implemented by BAOD to support Tier-1 automotive suppliers globally.
As electric vehicles demand quieter passenger cabins and lighter body components, TPV sealing strip profiles are evolving. We review the automation upgrades required to process these new materials.
Downstream automation and auxiliary units to optimize line productivity and final product quality.
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