High-Efficiency Extrusion Lines & Downstream Workstations
Explore our core custom PU hose extrusion architectures, high-performance PA/PE/HDPE lines, and servo downstream machinery engineered for automotive, medical, and specialized industrial sectors.
PU (Polyurethane) Precision Tube Extrusion Line
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Multi-Layer PA Smooth / Corrugated Hose Line
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PA (Nylon) Precision Tube Extrusion Line
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FQ Series Rotary Fly Knife Cutter Unit
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HDPE Silicone Core Tube (Micro Duct) Line
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Steel Strand & Corrugated Pipe Coating Line
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PC / PMMA / PS Optical Profile Extrusion Line
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TKB Series Precision High Speed Belt Puller
View Unit DetailsEngineering Architecture for Custom Polyurethane (TPU) Tubing Extrusion
Thermoplastic Polyurethane (TPU/PUR) possesses an exceptional mechanical profile characterized by ultra-high abrasion resistance, remarkable dynamic flex fatigue tolerance, kink resistance, low-temperature elasticity down to -40°C, and superior hydrolytic stability. However, converting raw polyether- or polyester-based TPU granules into dimensionally ultra-stable micro-bore catheters, high-pressure reinforced pneumatic hoses, or automotive EV battery cooling jackets presents steep rheological challenges. Unlike standard polyolefins (PE/PP), polyurethane exhibits extreme shear sensitivity, a narrow processing temperature window (±1.5°C), strong hygroscopic tendencies requiring controlled residual moisture below 0.02%, and viscoelastic memory that easily causes out-of-roundness and wall thickness deviation under improper cooling.
BAOD EXTRUSION (Jiangsu Baodie Automation Equipment Co., Ltd.) addresses these thermal-mechanical challenges through specialized screw geometry, low-shear compression profiles, melt pump stabilization, and dynamic multi-stage vacuum calibration tanks. Originating from KINGSWEL GROUP’s 18 years of technical accumulation in Taiwan prior to establishing our mainland manufacturing plant in 1999 and the formal establishment of the BAOD brand in 2002, our engineering team brings a quarter-century of empirical mechanical design directly to high-capacity plastic tube and hose fabricators worldwide.
Thermal Rheology Control
Melt viscosity shifts drastically with localized shear heating in TPU. BAOD custom single-screw extruders feature optimized 28:1 to 32:1 L/D ratios with barrier mixing zones and ceramic heating jackets paired with low-inertia cooling fans, keeping barrel zone deviation within ±0.5°C.
Closed-Loop Synchronization
Real-time integration connecting multi-axis laser measuring gauges, ultrasonic concentricity sensors, precision melt gear pumps, and servo belt pullers ensures instantaneous correction of haul-off velocity, eliminating tension surges during continuous line startup.
SCADA & Industry 4.0
Centralized Siemens S7-1500 PLC control with an intuitive high-definition HMI screen supports recipe management, real-time energy telemetry, melt pressure closed loops, and OPC-UA / MQTT industrial IoT connectivity for factory MES architectures.
Global Enterprise Sourcing Demands & Total Cost of Ownership (TCO)
Procuring industrial-grade extrusion machinery for medical and automotive polyurethane tubing requires evaluating lifecycle operating economics, not merely equipment purchase price.
The True Cost of Scrap in PU Hose Manufacturing
Due to the high cost of engineering-grade polyether TPU resin ($4.50 – $8.50/kg) and medical aliphatic TPUs ($15.00 – $40.00/kg), a 3% reduction in scrap rate through closed-loop gauge feedback and melt pump stabilization recovers the initial price delta of a premium BAOD extrusion line within 8 to 14 months of 3-shift operation.
Raw Material Efficiency
Polyurethane cannot undergo continuous regrinding without thermal degradation and loss of tensile modulus. Precise concentricity (≥96%) guarantees zero wall over-thickness, saving 4-7% in resin consumption per kilometer of extruded tubing.
OEE & Changeover Times
Modular spiral mandrel die heads engineered with quick-change pin/bush sets and automated toolless vacuum sizing sleeves decrease production changeovers between 6x4mm and 8x5.5mm pneumatic lines from 3.5 hours to under 45 minutes.
Traceability & Validation
Medical OEMs demand 100% parameter logging. Every BAOD line delivers real-time historical logging of melt pressure, melt temperature, vacuum tank water temperature, pulling speed, and continuous outer-diameter CPK reports for FDA/CE audits.
Worker Safety & Ergonomics
Equipped with category-4 safety interlocks, enclosed servo fly-knife cutting chambers, pneumatic wire-threading assists, and sound-insulated vacuum pump compartments, protecting plant operators while meeting OSHA and CE machinery directives.
Macro Industry Solutions & Polymer Rheological Matrix
Configured specifically to match Shore hardness ratings ranging from soft elastomeric 60 Shore A medical formulations up to rigid 85 Shore D industrial hydraulic profiles.
| Application Sector | Polymer Base & Hardness | Extrusion Screw Design | Sizing & Cooling Media | Tolerance Standard | Key Downstream Integration |
|---|---|---|---|---|---|
| Industrial Pneumatic Hose | Ester/Ether TPU (85A–98A) | 30:1 L/D Barrier screw with Maddock mixer | Intense vortex vacuum calibration + chill bath (15–18°C) | OD ±0.03mm, ID ±0.03mm | High-speed dual spooler with auto-traverse tension dancer |
| Medical Microbore Catheters | Aliphatic Ether TPU (65A–80A) | 25:1 L/D Nitrided SACM645 low-shear screw | Micro-differential air support + stainless calibration tank | OD ±0.015mm, Wall ±0.01mm | High-speed rotary fly knife cutter (>800 cuts/min) |
| Robotics Spiral Air Tubing | Ether-based Polyurethane (95A) | 28:1 L/D with internal spiral distribution head | Multi-stage vacuum calibration with dual-chamber control | Concentricity ≥96% | In-line hot-air memory annealing and thermo-forming coiler |
| Multi-Layer Fuel & Gas Tube | PA12 / TPU / Tie-resin Co-Ex | Multi-extruder co-extrusion feedblock crosshead | High-vacuum dry calibration sleeve with liquid ring pump | Barrier layer ±0.01mm | Non-contact 360° ultrasonic thickness sensor feedback |
| EV Battery Cooling Fluid Lines | Flame-Retardant TPU (UL94-V0) | Bimetallic wear-resistant barrel & screw (alloy 59) | Controlled progressive ramp cooling tank | Burst Pressure ≥3.5 MPa | Automatic coil binding and length tracking inkjet printer |
Turnkey Extrusion Line Structural Architecture
Desiccant Drying & Feed
Microprocessor-controlled honeycomb dehumidifying dryer achieving -45°C dew point to eliminate micro-porosity and bubble formation in hygroscopic TPU melt.
Precision Extrusion & Melt Pump
SJ Series single-screw extruder coupled with a high-torque Helical gearbox and precision melt gear pump to virtually eliminate pressure surge to <±0.1 MPa.
Vacuum Sizing & Vortex Cooling
Stainless steel 304 vacuum calibration tank with 3D micro-adjustment, dual-stage water circulation, and liquid-ring vacuum pumps maintaining stable sub-atmospheric sizing.
Servo Puller & Downstream Unit
TKB Series multi-belt haul-off driven by dual servo synchronizers, leading into high-accuracy optical fly knife cutting or dual-spool auto-traverse coiling.
Technological Evolution: Smart Extrusion & Sustainable Polymers
Anticipating the structural shifts in global manufacturing toward bio-derived thermoplastic elastomers, digital twin modeling, and autonomous edge regulation.
Bio-Based & Recycled TPU Formulations
With tightening European packaging and automotive end-of-life directives (ELV), extrusion lines must process bio-derived TPUs (synthesized from plant-derived polyols) and post-industrial PCR resins without experiencing thermal degradation. BAOD's new screw profile reduces peak frictional shear heat while maximizing homogenizing work.
AI Predictive Maintenance & Edge Sensing
Embedded vibration sensors on main thrust bearings, motor drive telemetry, and thermocouple response analytics identify screw wear, heater band degradation, and gearbox alignment anomalies weeks prior to physical equipment stoppage, ensuring uninterrupted Tier-1 automotive deliveries.
Cloud-Connected Global Support
Every extrusion platform integrates secure industrial VPN routers enabling BAOD software engineers in Jiangsu to diagnose PLC logic, update algorithmic PID loops, and assist customer process engineers anywhere across North America, Europe, or Southeast Asia within hours.
Localized Support Frameworks, CE Standards & Factory Acceptance (FAT)
Overseas capital equipment acquisition requires uncompromising engineering compliance, electrical conformity, and transparent validation protocols before machinery departs our manufacturing floor.
International Electrical Standards
Lines are customized for target facility power grids (e.g., 480V 60Hz 3-phase for North America; 400V 50Hz for Europe; 380V for APAC). Built strictly using UL508A and CE EN 60204-1 certified electrical enclosures with Schneider or Siemens switchgear.
Rigorous FAT & Material Run Trials
Prior to release, BAOD runs comprehensive 48-hour Factory Acceptance Tests (FAT) using the buyer's specified TPU resin compounds. Full continuous gauge logs, roundness reports, and high-speed cutting samples are certified before container loading.
On-Site Commissioning & Global Service
Our senior mechanical and automation engineers conduct on-site factory installation, field commissioning, calibration, and plant operator training. Supported through our dedicated Global Service program and rapid-dispatch regional spare parts.
Engineering Questions Polyurethane Extrusion Engineers Ask
Detailed technical responses addressing polymer moisture control, pressure stability, co-extrusion bonding, and dimensional repeatability.
Why is moisture pre-treatment critical in TPU tube extrusion, and how does BAOD accommodate it?
How does BAOD achieve outer diameter tolerances of ±0.02mm on small-bore flexible PU hoses?
What is the key difference when extruding Polyether TPU versus Polyester TPU?
Can BAOD PU extrusion lines handle multi-layer structures, such as TPU/PA or TPU with yarn reinforcement?
How does BAOD verify performance before overseas shipment (FAT testing)?
Precision Units, Profiles & Automotive Extrusion Lines
Complete your facility setup with BAOD high-precision sizing tanks, specialized single-screw extruders, automatic traverse coilers, and profile extrusion lines.
Vacuum Calibration Cooling Table
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Auto-Spool Changing Coiling Machine
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Precision Profile Extrusion Line
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QYP Series Precision Belt Puller
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SJ Series High Torque Single Screw Extruder
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ABS / PP / PVC Automobile Profile Line
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Shock Tube / Non-Electric Detonator Line
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TPV / PVC Automobile Sealing Strip Line
View Line SpecificationsConfigure Your Custom PU Hose Extrusion Line
Submit your polyurethane tubing drawing (OD, ID, wall thickness, tolerances) and targeted resin specifications. Our senior extrusion engineering department at Jiangsu Baodie Automation Equipment Co., Ltd. will analyze shear requirements, sizing rates, and deliver a comprehensive turnkey proposal within 24 hours.