| Parameter | Value / Detail |
|---|---|
| Product Classifications | Wooden Fold-Down Chair · Telescopic Seating · Stadium Seating · Bleachers Seats · Chairs for Bleachers |
| Structural Type | Tip-up folding layout with integrated spring folding mechanics |
| Core Material Composition | Eucalyptus multi-ply composite formed via hot pressing integral molding |
| Surface Finish (Standard) | External paste solid wood with surface-sprayed environmental protection paint |
| Surface Finish (Optional) | Artificial leather or textile fabric coating covers |
| Bracket Metallurgy | Steel or structural aluminum mounting brackets |
| Surface Preservation | Powder coating or hot-dip galvanization |
| Width | 440 ± 5 mm |
| Depth | 545 ± 5 mm |
| Folded Height (Pocket Clearance) | 50 ± 5 mm |
| Center-to-Center (C/C) Spacing | ≥ 457 mm |
| Installation Method | Deck front mounting — designed for retractable / telescopic seating structures |
| Integrated Accessory Options | Armrests · Cup holders · Seat numbers · Add plates |
| Material Performance | High strength · Non-deformation under load · Anti-weathering · Anti-fire · Anti-UV · Impact resistant · Coating adhesion · Salt spray resistance · Heat resistance · Anatomical ergonomic curve board |
| Mechanical Strength & Durability | BS EN 12727:2000 |
| Fire Resistance & Ignitability | BS 5852:2006 |
| Flammability Classification | DIN 4102-1 |
| Factory Experience | 10+ years commercial production · global export market positioning · direct project solution engineering |
Installed as deck-front folding seat units in retractable bleacher assemblies at primary and secondary school gymnasiums, delivering compact retraction and structural durability across high-frequency student use cycles.
Deployed across multi-tier telescopic sports venue platforms at university athletic facilities, where ≥ 457 mm C/C spacing and spring-actuated tip-up mechanics support dense spectator configurations on variable-span retractable structures.
Specified for permanent and semi-permanent telescopic seating systems in commercial concert halls and performing arts centers requiring BS 5852:2006 fire compliance and configurable accessory integration including armrests and cup holders.
Integrated into municipal stadium bleacher infrastructure projects where powder-coated or hot-dip galvanized bracket metallurgy meets long-term outdoor-adjacent environmental durability requirements across covered spectator decks.
Utilized across multi-tier auditorium seating layouts in civic and cultural venues, where the 50 mm folded height enables row-by-row independent retraction without altering fixed structural deck or riser load geometry.
The YH-WF(Q) has a seat width of 440 ± 5 mm, depth of 545 ± 5 mm, and a folded height of 50 ± 5 mm. Center-to-center structural spacing requires ≥ 457 mm, making this profile compatible with compact telescopic retraction without modification to deck riser geometry.
Brackets are available in steel or structural aluminum. Surface preservation is applied via powder coating or hot-dip galvanization, both of which provide salt spray resistance, coating adhesion integrity, and long-term corrosion protection in high-humidity public venue environments.
The YH-WF(Q) complies with BS EN 12727:2000 for mechanical strength and durability, BS 5852:2006 for fire resistance and ignitability testing, and DIN 4102-1 for flammability classification. These cover structural load cycling, fire source exposure, and flame spread parameters applicable to public assembly seating.
The chair uses deck front mounting, designed specifically for retractable telescopic seating structures. Available accessories include armrests, cup holders, seat numbers, and add plates — all configurable at the project specification stage.
