Chang-W Stadium Seating | HDPE Blow Molded Stadium Seat W370×D380×H80mm

Technical Specifications

Key Features & Benefits

• 30% mass reduction versus equivalent steel bench configurations lowers per-seat handling weight during transport and installation, reducing labor input and equipment requirements for large-scale site fit-outs.
• Hollow blow molding shell geometry at the W370×D380×H80mm low-profile envelope produces a twin-wall cross-section that sustains structural load capacity without the corrosion vulnerability of steel or the brittleness risk of solid-injection polymer profiles.
• Operational thermal stability from -30°C to +70°C maintains dimensional integrity and impact resistance across cold-climate winter deployments and high-temperature outdoor exposure conditions within a single seat specification.
• Anti-UV stabilizer and anti-aging compound integration in the HDPE 5502 matrix inhibits photodegradation and oxidative chain scission under sustained solar radiation and seasonal thermal cycling, extending outdoor service life.
• Non-porous HDPE surface prevents graffiti ink and liquid staining from penetrating the polymer matrix, reducing maintenance cost and cleaning cycle frequency in high-traffic transit hub and educational facility installations.
• Three discrete mounting modes — flat, wall, and vertical installation — allow a single Chang-W seat model to be deployed across fixed bench arrays, bleacher decks, and shelter frames without seat geometry modification.

Applications

• Installed in transit hub passenger waiting areas where the non-porous cleanable surface reduces maintenance burden and the 30% weight advantage over steel simplifies mounting hardware specification and structural loading calculations.
• Deployed in educational facility indoor and outdoor seating installations where the -30°C to +70°C thermal range covers climate-controlled and exposed environments within a single procurement specification.
• Specified for outdoor sports field and athletic field fixed-bench or bleacher configurations where anti-UV and anti-aging HDPE 5502 formulation addresses continuous solar and weather exposure conditions.
• Mounted on metal structure bleacher frames in stadium and arena settings where flat or wall installation modes interface with steel profiles and the 30% weight reduction over steel benches lowers cumulative structural loading on the bleacher frame.
• Integrated into bench shelter assemblies for player seating at arena and sports field venues where EN/SGS/BS/ISO certification documentation supports venue authority approval and the 10,000+ unit production capacity accommodates full-stadium procurement volumes.

FAQ

Q1: What are the Chang-W dimensions, raw material specification, and weight advantage over steel benches? The Chang-W seat envelope is W370 × D380 × H80 mm, manufactured via hollow blow molding from HDPE 5502 sourced from Saudi Arabia BN. At 30% lighter than steel bench equivalents, the HDPE 5502 shell reduces per-seat handling weight and cumulative structural loading across large-scale installations.

Q2: How should buyers select between flat, wall, and vertical installation configurations? Installation mode is determined by the structural frame geometry and mounting surface of the seating system. Flat installation suits horizontal deck surfaces; wall installation anchors to vertical riser or wall faces; vertical installation is used where seats fold upward on bleacher or shelter frames.

Q3: What are the ambient operating limits and material protection parameters for outdoor use? The Chang-W seat is rated for operation between -30°C and +70°C, covering cold-climate winter and high-temperature outdoor exposure within a single specification. The HDPE 5502 matrix additionally incorporates anti-UV stabilizers, anti-aging compounds, and fire-proof formulation to address photodegradation, oxidative aging, and surface flame propagation.

Q4: What production capacity, warranty, and certification validation apply to large-volume procurement? The manufacturer supports project volumes of 10,000+ units with a 2-year warranty under standard installation and use conditions. Certification documentation under EN, SGS, BS, and ISO frameworks is factory-available; procurement teams should request specific test reports for the applicable standard required by their venue authority or tender specification.