Chang-L Stadium Seating | HDPE Hollow Blow Molded Stadium Seat W410×D420×H170mm

Technical Specifications

Key Features & Benefits

• Stress-free hollow blow molding produces consistent wall thickness across the full W410×D420×H170mm shell geometry, eliminating the internal stress concentrations that reduce impact resistance in conventional injection-molded seating.
• Stackable seat geometry allows vertical nesting of multiple Chang-L units during transport and warehouse storage, reducing per-unit footprint and handling cost for large-volume procurement and site staging operations.
• UV-stabilized and corrosion-resistant HDPE 5502 matrix protects the seat shell against photodegradation and surface oxidation under continuous outdoor solar and moisture exposure, without the rust risk associated with metal seating components.
• Anti-aging and fire-proof compound integration in the HDPE 5502 base resin sustains structural and surface performance through seasonal thermal cycling and addresses surface flame propagation requirements for public assembly occupancy classifications.
• 100% recyclable and BPA-free HDPE 5502 construction supports procurement specifications that include end-of-life material recovery requirements or chemical compliance clauses for food-adjacent and educational venue environments.
• Three discrete mounting modes — flat, wall, and vertical installation — allow the Chang-L to be deployed across fixed auditorium rows, outdoor bleacher decks, metal structure bleacher frames, and bench shelter assemblies from a single seat SKU.

Applications

• Installed in municipal auditorium fixed-row seating arrays where the stress-free blow molded shell provides consistent load distribution across each seat position and the BPA-free material classification meets venue environmental specification requirements.
• Deployed across outdoor stadium tier arrays where UV-stabilized, anti-aging, and corrosion-resistant HDPE 5502 formulation addresses continuous solar radiation and weather exposure without surface treatment maintenance requirements.
• Specified for high-traffic public spaces where the non-porous HDPE surface resists wear and the stackable seat geometry supports efficient seasonal installation, removal, and storage cycles.
• Mounted on metal structure bleacher frames at sports fields and playgrounds where flat or vertical installation modes interface with steel frame profiles and the stackable design reduces logistics complexity for recurring installation projects.
• Integrated into bench shelter assemblies at arena and athletic field venues where the fire-proof formulation and EN/SGS/BS/ISO certification documentation support venue authority approval and the customizable color options allow alignment with facility branding.

FAQ

Q1: What are the Chang-L seat dimensions, raw material, and stress-free molding process advantages? The Chang-L seat envelope is W410 × D420 × H170 mm, manufactured from HDPE 5502 sourced from Saudi Arabia BN using a stress-free hollow blow molding process. Stress-free molding produces consistent wall thickness across the shell, avoiding the internal stress concentrations that reduce impact resistance in injection-molded alternatives.

Q2: What are the operational parameters for flat, wall, and vertical installation on metal structure bleachers? Installation mode is selected based on the mounting surface geometry and seat actuation requirement of the bleacher system. Flat installation suits horizontal deck surfaces; wall installation anchors to vertical riser faces; vertical installation is used where seats fold upward on metal structure bleacher frames.

Q3: What weather resistance and safety benchmarks apply for outdoor stadium and indoor auditorium environments? The Chang-L HDPE 5502 matrix is UV-stabilized, anti-aging, and corrosion-resistant for outdoor stadium exposure, and incorporates a fire-proof formulation for public assembly venue compliance. Anti-UV compound integration specifically addresses photodegradation of the polymer surface under sustained direct solar radiation in outdoor installations.

Q4: What environmental compliance, customization options, warranty, and certification validation apply? The Chang-L is manufactured from 100% recyclable, BPA-free HDPE 5502, supporting end-of-life recovery specifications and chemical compliance clauses. Color and branding customization is available on request; a 2-year warranty applies under standard conditions; EN, SGS, BS, and ISO certification documentation is factory-available for procurement validation.