Linyi Rich New Materials Co., Ltd. is a modernized industrial enterprise integrating research & development, precision manufacturing, and international commerce, dedicated to green composite building materials.
Headquartered in Linyi City, Shandong Province—China’s premier manufacturing hub for timber and polymer composite innovation—the company operates a flagship intelligent production facility covering over 100,000 square meters and employs over 300 senior technicians and chemical engineers. By combining automated micro-foaming technology, high-temperature extrusion, and strict quality control, we deliver elite architectural solutions worldwide.
Adhering strictly to ISO9001 Quality Management Systems, ISO14001 Environmental Management Protocols, and European CE/REACH certifications, our factory ensures zero-formaldehyde emissions, superior UV resilience, and engineered fire performance.
Tubular Wood-Plastic Composites (Tubular WPC)—also categorized across structural specification sheets as hollow WPC profiles, WPC louvers, architectural acoustic tubes, and timber-replacement extrusions—represent a pivotal shift in modern eco-conscious architecture.
Driven by tightening global carbon footprint regulations, deforestation bans, and the demand for low-maintenance external building envelopes, the global market for China-manufactured Tubular WPC profiles has surged. Modern architectural trends emphasize dynamic shading facades, vertical timber slat walls, suspended acoustic baffles, and semi-transparent space dividers—all scenarios where traditional solid timber succumbs to rot, warping, termite attack, and elevated flame hazards.
Hollow tubular profiles drastically lower total deadweight while preserving structural rigidity. The engineered internal air cavity improves thermal insulation coefficients (K-value reduction) and sound transmission loss (STL).
Formulated utilizing 60% reclaimed hardwood flour, 30% recycled high-density polyethylene (HDPE) or PVC, and 10% bio-friendly nano-additives, substituting virgin timber and conserving forest resources.
Unmatched resistance to moisture absorption (<0.5%), extreme thermal cycling (-40°C to +70°C), saltwater corrosion, and high solar UV radiation index levels.
| Performance Metric | China Tubular WPC Profile | Solid Natural Timber | Extruded Aluminum Louver | Traditional Solid WPC |
|---|---|---|---|---|
| Structural Weight | Lightweight (Hollow Core) | Moderate to Heavy | Ultra-Lightweight | Heavy / High Load |
| Moisture & Decay Resistance | Impervious (<0.5% Absorption) | High Susceptibility (Rot/Mold) | 100% Corrosion Resistant | High Resistance |
| Thermal Insulation (K-Value) | Superior (Air Core Chamber) | Moderate | Poor (High Thermal Bridge) | Moderate |
| Maintenance Cycle | Zero Staining / Paint-Free | Annual Sealing & Painting | Occasional Cleaning | Zero Staining |
| Fire Retardancy Rating | EN 13501-1 Class B-s1, d0 | Class C/D (Combustible) | Class A1 (Non-combustible) | Class B or C |
| Aesthetic Warmth & Tactility | Natural Wood Grain / Matte | Authentic Wood | Cold Metallic Finish | Synthetic Wood Texture |
Linyi Rich New Materials Co., Ltd. operates state-of-the-art dual-screw co-extrusion technology. By optimizing polymer melt viscosity, cross-linking density, and automated temperature calibration across 120 specialized production channels, our Tubular WPC profiles achieve industry-leading tensile and impact resistance.
Powered by 120 fully automated production lines generating 12 million square meters annually. Combines continuous hollow core profile extrusion with high-definition wood grain embossing and inline anti-static treatments.
Features 4 high-precision extrusion production lines yielding 3 million m² annually. Stone-plastic core technology ensures zero formaldehyde, extreme indentation resistance, and 100% waterproof stability.
Operates 40 customized heavy-duty production lines (2 million m²/year) specifically calibrated for exterior extreme thermal stress, UV resistance (ASTM G154), and severe freeze-thaw cycles.
Driven by 12 specialized coating lines producing 6 million m² per year. Multi-layer UV curing delivers mirror-like stone finishes with exceptional scratch and chemical resistance.
Utilizes 6 advanced production channels (1 million m²/year) equipped with proprietary CNC engraving machines enabling architectural V-grooving, seamlessly bendable corners, and ultra-light stiffness.
Integrated CNC routing and sound absorption PET backing line, alongside 6 dedicated PS lines backed by 200+ precision molds for delicate indoor architectural wall detailing.
Tubular WPC profiles engineered by China manufacturers serve as multi-functional architectural elements across residential, commercial, industrial, and municipal infrastructure projects globally.
Installed vertically or horizontally over curtain walls to intercept solar radiation, reducing building HVAC energy consumption by up to 28%. Hollow geometry permits internal steel tube reinforcement for high-rise wind load engineering.
Ideal for international airport terminals, transit stations, hotel lobbies, and corporate auditoriums. Tubular WPC profiles function as lightweight linear ceiling baffles that conceal MEP services while optimizing acoustic reverberation (NRC rating up to 0.75 when paired with sound absorption cores).
Utilized in open-plan offices, luxury villas, restaurant interiors, and retail spaces to establish visual zoning without obstructing airflow or ambient lighting penetration.
Heavy-duty exterior grade installation for resort walkways and architectural shading screens.
Seamless vertical slat aesthetics designed for high-traffic commercial interiors.
Precision-spaced tubular profile ceiling grids for modern office spaces and hospitality.
As global procurement standards shift toward EPD (Environmental Product Declarations) and BIM (Building Information Modeling) integration, Linyi Rich New Materials Co., Ltd. is leading the next evolution of wood-polymer composite engineering.
By partnering with leading material science institutes, our R&D roadmap focuses on three technological pillars: Bio-based Polyolefins, Co-extruded ASA (Acrylonitrile Styrene Acrylate) Super-Weatherable Shells, and Embedded Smart Thermal Sensors.
Tubular (hollow) WPC profiles offer a superior strength-to-weight ratio. The hollow core significantly reduces structural dead load on building facades, minimizes thermal retention, lowers transport shipping costs, and allows internal insertion of steel or aluminum stiffeners for extreme wind load conditions.
Top-tier manufacturers like Linyi Rich New Materials incorporate light stabilizers (HALS), UV absorbers, and high-grade inorganic color pigments into the polymer formulation. For extreme outdoor exposure, multi-layer co-extrusion technology coats the profile with an impervious weather-resistant polymer shell, guaranteeing color fastness under ISO 4892-2 weatherometer testing.
Our WPC and acoustic profile formulations achieve European Standard EN 13501-1 Class B-s1, d0 flame retardancy. This indicates minimal flame contribution, low smoke emission (s1), and zero burning droplets (d0), making them fully compliant for commercial interiors and public infrastructure envelope projects.
Yes. With over 200 custom molds and in-house tooling facilities, we manufacture square, rectangular, circular, semicircular, and irregular acoustic tubular geometries. Surface options include deep 3D wood embossing, sanding, brushing, smooth matte, and high-gloss UV stone coatings.
Installation utilizes continuous hidden metal joist systems, snap-in steel clips, or internal aluminum tube connectors. Profiles slide into place smoothly with concealed fasteners, providing clean linear lines with zero visible screw heads.
Our standard MOQ starts at 500 square meters per profile configuration. Supported by 120 automated production lines, standard 20ft container orders are manufactured and dispatched within 10 to 15 business days following technical shop drawing approval.
Rich New Materials