Product Specification
1. Ergonomic design & pneumatic comfort – Medium‑height backrest with continuous raised lumbar support, molded from high‑resilience polyurethane foam; the seat incorporates a pneumatic function for enhanced guest comfort and a silent spring‑based automatic return mechanism (zero‑noise, trouble‑free operation).
2. Anti‑accidental‑touch writing board – Built‑in foldable writing tablet with a wooden writing surface, concealed inside the armrest base for space‑efficient use; the opening beneath the board ensures convenient access.
3. Sound‑absorbing shell construction – Seat and back shells are injection‑moulded from high‑quality PP with unique acoustic vents, delivering an overall sound absorption coefficient of 0.5 and eliminating echoes within 0.1 seconds.
4. High‑density cold‑cured foam – Seat cushion density ≥60 kg/m³, back cushion density ≥55 kg/m³; moulded as one piece, offering soft feel, excellent resilience, and no deformation after prolonged use.
5. Premium wood & fabric – Armrest surface made of moulded wood finished in cherry wood colour (other colours available); upholstery is Taiwan Yida flame‑retardant fabric meeting China Class B fire safety standards.
6. Robust hardware & corrosion protection – “Zhuang” brand hardware with oil‑removal, rust‑removal, pickling and phosphating treatment, plus electrostatic powder coating; steel foot base (≥2.4mm thick) and frame receive anti‑rust treatment, 18‑micron electrophoretic primer and 30‑micron epoxy resin spray, passing 400‑hour salt spray and 100‑hour salt bath tests without rusting.
Detailed Specifications
Upholstery fabric – Taiwan Yida fabric, flame‑retardant and fire‑resistant, meeting China Class B fire safety standard, durable and easy to maintain.
Seat & back cushions – One‑piece moulded polyurethane foam, ergonomically shaped; seat density ≥60 kg/m³, back density ≥55 kg/m³, high resilience and non‑deforming.
Seat & back shells – High‑quality PP injection‑moulded as a single piece, featuring acoustic perforations with a sound absorption rate of 0.5, allowing echo‑free acoustics within 0.1 seconds.
Return mechanism – Spring‑based automatic return device, providing silent, reliable operation with zero noise and no risk of malfunction.
Writing tablet – Foldable, built‑in wooden writing surface, stows inside armrest base; anti‑accidental‑touch design.
Armrest surface – Made of moulded wood with cherry wood finish (other colour options available), elegantly styled.
Hardware & frame – “Zhuang” brand, with full anti‑corrosion pretreatment (degreasing, rust removal, pickling, phosphating), electrostatic powder coating. Foot base stamped from cold‑rolled steel (≥2.4mm thickness). Chair frame, supports and legs receive anti‑rust treatment, followed by 18‑micron electrophoretic anti‑corrosion primer and 30‑micron epoxy resin topcoat. Passes 400‑hour salt spray test and 100‑hour salt bath corrosion test; paint film adhesion > Grade 2, with certified test reports.
Floor fixing – Hidden pressure‑type stainless steel expansion screws for strong, aesthetic, and rust‑resistant ground fixation.
Additional options – Luminous row/seat number plates (no power supply, wiring or maintenance required); cup holder, book net, and other accessories available upon request.
SEO Text Block (for search engines – placed at page bottom)
This auditorium chair (model CH208FC‑1) features a 580mm centre distance, 730mm seat depth, 870mm overall height, and approx. 100mm armrest width. The built‑in foldable writing board has a wooden surface. Seat foam density is ≥60 kg/m³ and back foam density is ≥55 kg/m³, both cold‑cured polyurethane for lasting resilience. The spring‑based return mechanism ensures silent operation, while the pneumatic function maximises seating comfort. The armrest surface is made of moulded wood in cherry wood finish, and the upholstery is Taiwan Yida flame‑retardant fabric meeting Class B fire standards. The high‑strength steel frame and “Zhuang” hardware are treated with multi‑layer anti‑corrosion coatings, passing 400‑hour salt spray tests. The PP shells incorporate acoustic vents providing a 0.5 sound absorption coefficient for echo‑free acoustics. Fixing uses hidden stainless steel expansion screws for durability and clean appearance. Ideal for high‑end meeting rooms, auditoriums, lecture halls, screening rooms, and multi‑functional venues. Optional luminous row plates, cup holders and book nets are also available.
