LANGLI PVC Request a Catalog LANGLI PVC Request a Catalog Direct factory supply of precision-extruded rigid UPVC cable trunking systems engineered for high-density office wiring, under-floor distribution, and wall-mounted electrical containment.
Analyzing architectural trends, hybrid workplace requirements, and strict electrical safety standards shaping global procurement demands in 2025 and beyond.
The global commercial building ecosystem is undergoing a profound structural transition. As modern office spaces pivot toward hybrid working models, flexible hot-desking, and dense deployments of IoT devices, high-speed data networks, and power channels, the demand for versatile, fire-rated, and aesthetically refined cable wireways has surged exponentially. Cable trunking is no longer considered a passive electrical accessory; it has evolved into a vital architectural sub-system that guarantees operational uptime, electromagnetic compliance, and human life safety within enterprise facilities.
In response to changing international building codes—such as the European EN 50085 series, BS 4607, and international IEC 61084 specifications—tier-1 general contractors and commercial developers are demanding Original Design Manufacturing (ODM) partners capable of delivering bespoke extrusions. These custom solutions must seamlessly blend mechanical toughness (high impact resistance at low ambient temperatures) with elevated flame retardancy and rapid, clip-on modular assembly features that minimize expensive jobsite labor hours.
What international electrical distributors, building project contractors, and enterprise specifiers require when auditing ODM office trunking factories.
Uncompromising compliance with UL94 V-0 flame spread standards. Raw materials must incorporate high-grade unplasticized Polyvinyl Chloride (UPVC) compounded with lead-free stabilizers, achieving self-extinguishing behavior within 10 seconds of flame ignition and producing minimal smoke density.
Tight extrusion tolerances (±0.15mm) ensure that trunking lids maintain high retention force under heavy cable loads, yet remain accessible for retrofitting. Precision tooling guarantees smooth interior wireways, eliminating sharp edges that could compromise wire insulation.
Global buyers require comprehensive OEM/ODM support—from custom profile extrusion and co-extruded flexible rubber lip seals to private-label master cartons, custom color compounding (RAL/Pantone matching), and pre-punched mounting slot configurations.
How 35+ years of plastic injection and extrusion heritage in Foshan, Guangdong empowers global clients with cost efficiency, unmatched lead times, and rigorous quality control.
Located in Leliu Town, Shunde District, Foshan City—the recognized epicenter of China’s advanced electrical hardware and polymer manufacturing industry—Foshan Shunde Langli Hardware Electrical PVC Co., Ltd. (est. 1989) represents the pinnacle of integrated ODM manufacturing. By controlling every stage of the production chain on a single centralized campus, from raw material formulation and compound compounding to precision die tooling, injection moulding, and automated profile extrusion, Langli delivers operational efficiencies that translate directly into competitive pricing and reliable delivery schedules for overseas partners.
Our facility operates 32 state-of-the-art injection moulding machines alongside multi-strand twin-screw extrusion lines. Supported by an in-house tool room housing over 900 custom mould sets, we eliminate the delays typical of third-party tooling vendors. Whether modifying an existing profile lid engagement structure or developing an entirely new multi-compartment skirting trunking profile from customer CAD drawings, sample prototypes are delivered within 15 to 30 days.
Tailored electrical containment strategies engineered for specific commercial, enterprise, institutional, and industrial building environments.
Challenge: Managing dense power drops, internet cables, and AV feeds across open-plan workspaces without compromising interior aesthetics or violating fire safety codes.
ODM Solution: Multi-compartment skirting trunking and dado trunking systems featuring snap-in box mounting plates. Separates 240V power circuits from Cat6A data lines while offering decorative wood-grain or pristine white finish options that complement modern workspace interiors.
Challenge: High thermal accumulation, continuous vibration, and immense cabling volume requiring structured overhead and under-floor wireways.
ODM Solution: Heavy-gauge slotted wiring duct (up to 200x100mm) formulated with elevated Vicat softening temperatures (>81°C) and high impact strength. Slotted side walls enable clean, strain-relieved breakout of fiber patch cords to server racks.
Challenge: Strict hygiene requirements demanding smooth, easy-to-clean surface containment resistant to chemical disinfectants and dust accumulation.
ODM Solution: IP40/IP44 rated solid-wall UPVC trunking profiles manufactured with non-porous antibacterial additives, seamless snap-fit lids, and molded internal/external corner fittings that prevent dust ingress and bacteria harbor points.
Challenge: High foot-traffic areas prone to physical impacts, accidental kicks, and tamper threats from unauthorized personnel.
ODM Solution: High-impact arc-shaped floor trunking (over-floor cable covers) and heavy-duty wall trunking designed with double-locking lid mechanisms to resist tampering and withstand heavy rolling load impacts.
Standard engineering parameters for Langli UPVC office cable trunking systems. Custom parameters available upon request.
| Dimension Profile (W × H) | Wall Thickness Range | Material Formulation | Dielectric Strength | Flame Retardancy | Standard Certifications |
|---|---|---|---|---|---|
| 10 × 10 mm to 25 × 16 mm (Mini) | 0.60 mm – 0.85 mm | Rigid High-Impact UPVC | > 35 kV / mm | UL94 V-0 / Self-Extinguishing | CE, RoHS, IEC 61084 |
| 39 × 19 mm to 60 × 40 mm (Medium) | 0.85 mm – 1.25 mm | Rigid High-Impact UPVC | > 35 kV / mm | UL94 V-0 / Self-Extinguishing | CE, RoHS, BS EN 61386 |
| 75 × 50 mm to 100 × 50 mm (Large) | 1.20 mm – 1.65 mm | Rigid Heavy-Duty UPVC | > 40 kV / mm | UL94 V-0 / Self-Extinguishing | CE, RoHS, BS 4607 |
| 150 × 75 mm to 200 × 100 mm (Maxi Duct) | 1.50 mm – 2.40 mm | Structural Reinforced UPVC | > 40 kV / mm | UL94 V-0 / Self-Extinguishing | CE, RoHS, DIN VDE 0604 |
Analysis of wall thickness, structural ribbing, and resin shrinkage rates using 3D CAD modeling.
CNC machining of extrusion dies and injection moulds in our specialized Shunde toolroom within 20–30 days.
Rigorous physical testing: low-temp impact testing, glow-wire fire tests, and lid retention force validation.
All Langli PVC electrical conduit pipes, trunking profiles, junction boxes, and accessories carry fully traceable testing documentation for smooth customs clearance and project tender submissions.
CE Compliance Certificate
Conformity Report P1
Conformity Report P2
RoHS Substance Testing
RoHS Verification P2
In-depth technical analysis published by Langli’s senior polymer engineers and export compliance officers.
Direct answers from our senior engineering and export management team regarding custom tooling, compliance, minimum order quantities, and material compounding.
Our products are engineered and tested in full accordance with BS EN 61386-1, BS 4607, IEC 61084-2-1, and DIN VDE 0604 standards. We maintain active CE conformity documentation and comprehensive RoHS test reports (verifying non-toxic, heavy-metal-free compounding). Standard export orders achieve UL94 V-0 flame-retardant self-extinguishing ratings.
For custom ODM projects, our in-house toolroom completes 3D CAD modeling and mold flow simulations within 3–5 business days. Tooling fabrication (extrusion dies and injection molds) requires 20 to 30 days. Once initial samples are approved by the client, mass production lead times typically range from 15 to 25 days per 40ft high-cube container load.
Yes. We offer complete OEM/ODM customization options. We match custom RAL or Pantone color shades (such as office-grey, charcoal, ivory, or wood-grain decorative finishes). Trunking bases can be supplied with high-tack double-sided adhesive foam tape for fast retrofit installations. Packaging options include private-label printed master cartons featuring your company barcode and branding.
Quality control is enforced at four key operational gates under ISO 9001 protocols: 1) Raw virgin UPVC resin inspection; 2) Continuous inline laser-gauge monitoring of wall thickness and outer dimensions during extrusion; 3) Batch sampling for low-temperature impact resistance and Vicat softening point testing; 4) Pre-shipment fit verification between trunking bodies and matching corner accessories.
For standard catalog items in white, our MOQ starts at 20 cartons per individual SKU, or a consolidated mixed 20ft container combining trunking profiles, conduit pipes, and junction boxes. For custom ODM colors or unique extruded profiles, the standard trial order MOQ is 3,000 meters per size profile.
Unplasticized PVC exhibits a thermal coefficient of expansion around 0.06mm/m/°C. Our engineering specifications recommend utilizing expansion couplers or leaving a 4mm expansion gap at inter-trunking joints every 3 meters in temperature-variable office environments, ensuring structural straightness without warping over long-term operation.
Explore our full wholesale range of electrical containment systems, self-adhesive wire ducts, and precision junction accessories.
Request our complete 2025 technical catalog, CAD drawing library, and factory-direct price list. Connect directly with our export engineering team within 24 hours.
