LANGLI PVC Request a Catalog LANGLI PVC Request a Catalog Explore our high-demand OEM/ODM plastic cable protection systems, manufactured with high-grade self-extinguishing UPVC resins.
In modern industrial electrical engineering, infrastructure development, and automotive assembly, cable protection systems are subject to stringent mechanical, thermal, and environmental demands. The global shift toward electrification, smart manufacturing, renewable energy installations, and telecommunication upgrades has exponentially boosted the demand for versatile raceway solutions. Among these, Split PVC (Polyvinyl Chloride) Conduit and Split Cable Trunking have emerged as indispensable solutions for both retrofit maintenance and primary installations.
Traditional continuous non-split conduits require complete wire threading during assembly and demand extensive dismantling during repairs. Conversely, Split PVC tubing and hinged split cable ducting feature a longitudinal seam or snap-lock mechanical edge. This structural innovation enables engineers and electricians to enclose existing cabling harnesses without disconnecting terminal blocks or halting active machinery. Consequently, labor hours are reduced by up to 60%, drastically minimizing industrial operational downtime.
Key Insight: As a premier China Wholesale Split PVC Manufacturer and Factory located in Foshan Shunde, Langli PVC produces specialized rigid and flexible split PVC ducting engineered to meet BS EN 61386, DIN standard dimensions, and UL94 V-0 flame resistance standards. Our manufacturing capabilities bridge high-volume cost efficiency with rigorous engineering tolerances.
Global commercial and industrial procurement officers face growing challenges regarding material degradation, UV exposure in outdoor photovoltaic solar farms, chemical exposure in automation plants, and strict smoke/toxicity limits in public transit projects. Sourcing from a factory with direct compounding control, customized tooling, and complete quality traceability is vital to long-term operational security.
Understanding the distinction between flexible slit corrugated PVC tubing, rigid snap-lock split trunking, and UPVC conduit systems.
Unplasticized Polyvinyl Chloride (UPVC) forms the backbone of heavy-duty rigid split conduit systems. Premium virgin UPVC resin is combined with specialized heat stabilizers, impact modifiers, and titanium dioxide (TiO2) UV inhibitors.
Manufactured via high-speed continuous blow-moulding extruders, flexible split corrugated PVC (wire loom) features alternating ridges and grooves with a clean longitudinal cut along the entire axis.
Designed for architectural surface cable routing and heavy industrial panel wiring, rigid split UPVC ducting incorporates dual interlocking mechanical edges that clamp together securely once cables are seated.
Factory standard manufacturing parameters for rigid conduit, flexible split loom, trunking, and circular fittings.
| Product Line Category | Standard Sizes (mm / Inch) | Material Grade | Thermal Operating Range | Flame Rating & Certifications | Primary Industrial Application |
|---|---|---|---|---|---|
| Rigid PVC Conduit Pipe | 16mm, 20mm, 25mm, 32mm, 40mm, 50mm (1/2" to 2") | High-Impact Rigid UPVC | -15°C to +75°C | UL94 V-0, CE, RoHS, BS EN 61386 | Commercial surface & flush concealed wiring |
| Flexible Slit Corrugated Tubing | AD7.0, AD10.0, AD13.0, AD21.2, AD28.5, AD34.5, AD54.5 | Plasticized Flame-Retardant PVC | -25°C to +85°C | RoHS, REACH, Self-Extinguishing | Automotive wire loom, CNC robotics, solar panels |
| Hinged Split Cable Trunking | 10x10, 16x16, 25x16, 40x25, 60x40, 100x50, 200x100mm | Unplasticized Rigid UPVC-U | -20°C to +65°C | CE, RoHS, BS 4607 Part 1 | Data centers, retail electrical, office wire concealment |
| Circular 1-4 Way Junction Boxes | 16mm, 20mm, 25mm conduit knock-outs | Injection Moulded UPVC | -15°C to +80°C | IP65 waterproof option, CE | Lighting branch loop-ins, cable junction points |
| Trunking Fittings (Tees, Angles) | Precision matched to trunking series (10mm - 200mm) | High-Density Formulated UPVC | -15°C to +70°C | CE, RoHS Compliant | Modular corner transitions, directional branching |
How global contractors and original equipment manufacturers deploy split PVC solutions across diverse operational environments.
Modern commercial vehicles, electric buses, and heavy machinery require organized engine bay cable routing. Split PVC flexible loom tubing allows engineers to slip protective sleeves over high-voltage wiring harnesses without disassembling complex pin connectors.
Value Add: High temperature resistance prevents insulation abrasion against metal frames and protects sensitive electronics against road splash and grease exposure.
Outdoor solar installations subject DC string cabling to continuous ultraviolet radiation, ozone, and wind vibrations. UV-stabilized split PVC tubing provides quick retrofit jacketing over long cable runs between PV modules and central inverter units.
Value Add: Formulated with carbon black and UV inhibitors to ensure a 15+ year operational lifespan under direct solar exposure without embrittlement.
Inside automated manufacturing plants, multi-axis robotic arms and conveyor systems require frequent cable maintenance. Slit flexible PVC tubing and hinged wiring ducting enable rapid inspection, drop-out cable additions, and continuous flex performance.
Value Add: Smooth interior prevents wire jacketing wear, while flame-retardant properties prevent electrical short-circuit flame propagation.
Commercial office upgrades, residential renovations, and hotel retrofits frequently require surface-mounted power, HDMI, and ethernet cabling. Decorative snap-lock split trunking fits flush along baseboards or wall profiles, providing an aesthetically pleasing hideaway.
Value Add: Paintable surface finish, matching internal/external elbow accessories, and self-adhesive backing options for ultra-fast installation.
Sourcing directly from Foshan Shunde Langli Hardware Electrical PVC Co., Ltd. provides overseas electrical wholesalers, distributors, and engineering contractors with a distinct competitive advantage in cost, quality control, and order fulfillment speed.
Situated in Leliu Town, Shunde District — recognized globally as the primary manufacturing hub for industrial plastics and hardware — our factory benefits from immediate proximity to raw resin suppliers, specialized additive formulators, and high-precision mold machine makers. This integrated ecosystem dramatically lowers upstream raw material transport costs and speeds up tooling turnaround times.
With over three decades of operational expansion since 1989, Langli maintains an extensive library of over 900 custom plastic injection and extrusion mold sets. This eliminates tooling setup delays for standard global sizes (BS, DIN, ASTM, GB). Our 32 automated extrusion and injection moulding machines operate on 24/7 continuous shifts, ensuring large-scale bulk order delivery within 15 to 25 days.
Unlike secondary processing factories that purchase pre-mixed plastic pellets of variable purity, we compound high-grade virgin UPVC resin directly in-house. This allows strict formulation control, enabling us to tailor the exact percentage of flame retardants, impact modifiers, and UV stabilizers based on specific customer project tender requirements (e.g., standard commercial grade vs ultra-heavy duty V-0 industrial grade).
Shipping bulk plastic conduit and trunking efficiently requires scientific cubic meter (CBM) utilization. Our logistics engineers calculate custom nestable packaging configurations — nesting smaller conduit sizes inside larger trunking profiles — maximizing container capacity and saving buyers thousands of dollars in ocean freight per shipment.
How our R&D center is pioneering eco-friendly, halogen-free, and smart-monitored extrusion processes for future electrical standards.
Responding to strict European Union building codes and underground rail transit specifications, our polymer engineers are scaling commercial production of halogen-free flame-retardant split conduit. These formulations release virtually zero toxic halogen gas or dense black smoke during fire scenarios.
In line with global environmental, social, and governance (ESG) targets, we are incorporating closed-loop post-industrial PVC scrap recycling systems. Controlled co-extrusion technology allows a 100% recycled inner structural core shielded by a virgin, color-matched outer aesthetic layer, preserving structural integrity while reducing carbon footprint.
Our updated extrusion lines feature dual-axis dynamic laser micrometer sensors. These closed-loop feedback systems continually monitor wall thickness and split seam alignment in real time, automatically adjusting extrusion speed to guarantee ±0.05mm dimensional precision across 3-meter conduit lengths.
Navigating import regulations, customs requirements, and engineering tender approvals requires comprehensive documentation. Langli delivers complete compliance verification with every order shipped.
Our rigid PVC conduits and junction boxes comply fully with European Union CE Directive mandates and British Standard BS EN 61386-21. Official test certificates detailing mechanical impact resistance, compression strength (up to 750N), and dielectric strength are supplied for tender verification.
All PVC compounds, color pigments, and anti-aging additives used in our manufacturing process are certified free from heavy metals, lead (Pb), cadmium (Cd), mercury (Hg), and restricted phthalate plasticizers, ensuring absolute safety for indoor municipal and residential deployment.
Prior to container seal, every production lot undergoes rigorous laboratory testing: low-temperature impact drop testing (-15°C), glow-wire flammability testing at 850°C, socket gauge alignment verification, and color consistency checks under standardized light booths.
Explore additional high-performance PVC trunking profiles, wire ducts, and customizable OEM solutions.
In-depth answers from our engineering desk covering custom tooling, raw material formulations, and wholesale ordering logistics.
