Primary Precision Extrusion Modules
Turnkey co-extrusion units and auxiliary machinery manufactured under rigid tolerance standards in Haian, Jiangsu.
The Paradigm Shift: From Vulcanized EPDM to Knitted TPV Lines
Global thermal management demands lightweight, chemically inert, and 100% recyclable fluid transfer lines capable of handling aggressive EV coolants and high-pressure regimes.
In modern industrial fluid and gas conveyance, the transition from traditional thermoset rubber (such as EPDM) to Thermoplastic Vulcanizates (TPV) represents a watershed moment. As an established custom knitted TPV hose line manufacturer, BAOD EXTRUSION engineers lines designed to address this paradigm shift. Traditional rubber vulcanization requires high energy consumption, elongated sulfur-curing tunnels, toxic cross-linking emissions, and creates hoses that cannot be recycled after end-of-life vehicle disposal.
Conversely, knitted TPV composite hoses merge the chemical inertness, elastomeric behavior, and thermal resistance of dynamically vulcanized PP/EPDM matrices with high mechanical burst thresholds afforded by circular high-speed textile reinforcement. The extrusion equipment designed by our Haian engineering hub enables synchronized, single-pass processing: inner tube co-extrusion, synchronized high-tension yarn knitting, multi-layer adhesive thermal bonding, and final outer layer jacketing.
Weight Reduction in EV Architecture
By replacing metal piping and heavy vulcanized EPDM hoses with knitted TPV composites, commercial vehicle and electric vehicle thermal management architectures drop total fluid transfer harness weight by up to 35% without losing mechanical burst rigidity.
- Lightweighting
- Cooling Lines
- Low NVH
Circular Economy & Recyclability
TPV scrap generated during extrusion start-up, sizing calibration, and downstream cutting can be re-pelletized and fed back into line hoppers up to specified virgin blend thresholds, vastly minimizing manufacturing scrap rates.
- Zero Curing Ovens
- Zero VOC Volatilization
- ISO 14001
Production Efficiency (OEE)
Integrated continuous knitted composite lines eliminate secondary curing workflows, transitioning factory cycle times from hours-long batch vulcanization to a single, continuous extrusion line moving at up to 15–25 meters per minute.
- Continuous Inline
- Fast Payback
- Servo Automation
China Factory 4.0: Engineering Precision at Scale
Combining 25 years of Taiwanese precision heritage with our 16,000 m² state-of-the-art Jiangsu production campus.
The global procurement landscape for custom extrusion lines has drastically changed. Global Tier-1 and Tier-2 suppliers can no longer tolerate the 12-to-18-month lead times, inflexible modification constraints, and prohibitive spare parts pricing typical of legacy European manufacturers. BAOD EXTRUSION bridges this operational divide through the integration of China Factory 4.0 engineering frameworks.
Our Haian manufacturing hub incorporates automated 5-axis CNC barrel machining, in-house nitriding facilities, coordinate measuring machine (CMM) quality checkpoints, and closed-loop Siemens S7-1500 PLC hardware architecture. This vertical integration preserves supply chain agility, enabling our engineering team to ship highly customized knitted TPV extrusion systems within 60 to 90 business days.
Taiwan Precision Pedigree
Rooted in KINGSWEL GROUP’s foundational 18-year engineering history in Taiwan before consolidating manufacturing in mainland China in 1999.
Closed-Loop Synchronization
Servo motors drive both haul-off units and high-speed knitting rotors, cross-communicating via industrial bus (Profinet/EtherCAT) for exact pitch control.
Full CE & Safety Compliance
Complete mechanical interlocks, sound dampening enclosures, safety switches, and CE-marked components suited for plant health and safety audits worldwide.
Lifetime Global Remote Support
Secure industrial gateway routers enable remote telemetry, diagnostics, firmware adjustments, and live operator coaching across all continents.
Knitted TPV Hose Line: Benchmark Parameters
Engineered for seamless processing of Santoprene, Sarlink, and custom olefinic compound vulcanizates.
| System Module | Technical Configuration | Operational Function & Capability | Tolerance / Standard |
|---|---|---|---|
| Primary Extruder (Inner Tube) | SJ-45/28 to SJ-65/30 Precision Single Screw | Melt plastification for smooth, pinhole-free inner fluid containment liner | Melt pressure stability: ±0.3 MPa |
| Vacuum Sizing & Cooling Table | Multi-chamber 304 Stainless Steel Vacuum Sizing | Rapid thermal quenching with precise internal water temperature controls | Water temp accuracy: ±0.5°C |
| Circular Knitting Machine | High-Speed 24 / 36 / 48 Carrier Circular Unit | Applies interwoven polyester, aramid, or nylon yarn matrix | Synchronized stitch pitch: ±0.1 mm |
| Secondary Cross-Head Extruder | SJ-50/28 or SJ-65/28 Outer Skin Extruder | Encapsulates yarn reinforcement under calibrated melt temperature | Outer diameter tolerance: ±0.03 mm |
| Haul-Off System | TKC Series Dual-Belt or Crawler Multi-Grip Unit | Continuous pulling without profile flattening or surface scratching | Speed stability: ±0.01 m/min |
| In-Line Quality Monitoring | Dual-Axis Laser Diameter Gauge & Spark Tester | 100% inspection of diameter, ovality, and pinhole insulation integrity | Real-time automatic servo feedback |
Mission-Critical Deployment Scenarios
High-reliability deployment of knitted TPV lines across global manufacturing industries.
Electric Vehicle Battery Thermal Loops
Thermal management loops in EV battery packs and inverters require hoses that withstand glycol-water mixes at up to 125°C, resist electrochemical degradation, and remain flexible for tight chassis packaging.
- Glycol Resistance
- High Temperature
- Zero Leaks
White Goods & High-End Appliances
Commercial dishwashers, washing machines, and industrial coffee systems rely on knitted TPV lines for hot water intake and drainage, guaranteeing clean extraction, zero plasticizer leaching, and high fatigue resistance.
- Food Grade Options
- Vibration Damping
- Long Lifespan
Industrial Pneumatics & Hydraulics
Low-to-medium pressure pneumatic lines operating within automation machinery requiring kink resistance, continuous flexing over dynamic cable tracks, and high resistance to airborne industrial oils.
- Kink Resistance
- Dynamic Flexing
- Oil Mists
Frequently Asked Questions
Direct answers to the most common technical questions posed by procurement executives and plant engineers.
What makes TPV preferred over EPDM rubber for knitted automotive fluid hoses?
How does the circular knitting tension integrate with extrusion haul-off speeds?
What wall thickness and diameter tolerances can be maintained across long shifts?
How does BAOD support global installation, commissioning, and validation?
Can the line handle alternative elastomers such as TPU, PVC, or TPE-S?
Specialized Automation & Extrusion Systems
Explore our complementary extrusion solutions, high-speed winding machinery, and high-specification composite profile equipment.
