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 dual‑spring automatic return device (1‑2 seconds reset).
2. Anti‑accidental‑touch writing board – Built‑in foldable writing tablet with a wooden writing surface, stored 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 solid wood & fabric – Armrest surface made of high‑grade solid black walnut wood; upholstery is imported linen velvet, colourfast for up to five years with strong flame‑retardant properties.
6. Robust hardware & corrosion protection – “Zhugang” brand hardware with oil‑removal, rust‑removal, pickling and phosphating treatment, plus electrostatic powder coating; steel foot base (≥2.5mm 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 – Imported linen velvet, anti‑fading for ≥5 years, flame‑retardant and abrasion‑resistant.
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 – Automatic dual‑spring return device, reset time 1‑2 seconds, operation silent with rubber bumpers at impact points.
Writing tablet – Foldable, built‑in wooden writing surface, stows inside armrest base; anti‑accidental‑touch design.
Armrests – Surface crafted from high‑grade solid black walnut wood, elegantly finished.
Hardware & frame – “Zhugang” brand, with full anti‑corrosion pretreatment (degreasing, rust removal, pickling, phosphating), electrostatic powder coating. Foot base stamped from cold‑rolled steel (≥2.5mm 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 – All screws and metal components undergo standard anti‑corrosion treatment; leg fixing bolts with protective covers (optional).
Additional options – Luminous row/seat number plates (no power supply, wiring or maintenance required); cup holder, book net, and other accessories available upon request.
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This auditorium chair (model CH208FC‑2) features a 580mm centre distance, 770mm seat depth, 1030mm overall height, 620mm seat width, and approx. 80mm armrest width, with a recommended row spacing of 1000mm. The built‑in foldable writing board has a wooden surface. Seat foam density is 60 kg/m³ and back foam density 55 kg/m³, both cold‑cured polyurethane for lasting resilience. The automatic dual‑spring return mechanism resets silently in 1‑2 seconds, while the pneumatic function maximises seating comfort. Armrests are made of solid black walnut wood, and the upholstery is imported linen velvet with 5‑year colourfastness and flame‑retardant properties. The high‑strength steel frame and “Zhugang” 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. 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.
