Product Specification
1. Ergonomic contour and high‑density foam – Backrest and seat cushion follow natural body curves; seat foam density >60 kg/m³, back foam density >55 kg/m³, offering exceptional comfort and durability.
2. Concealed folding writing board – Built into the armrest with quiet operation, providing convenient note‑taking without occupying extra space.
3. Silent spring‑damping return mechanism – Combines spring and imported damping device for consistent, coordinated, and zero‑noise automatic reset; tested for over 200,000 cycles with trouble‑free performance.
4. Premium imported linen velvet fabric – Offers excellent permeability, sound absorption, wear resistance, and colorfastness. Optional treatments include 3M stain resistance, Teflon liquid repellency, anti‑static, anti‑bacterial, anti‑mildew, and fire retardancy. Meets GB8410‑94, GB17951‑1998, BS7176, and BS5852 standards.
5. Sturdy steel base with advanced coating – Independently supported design with steel thickness ≥3.0mm; features air outlets that can function as air conditioning vents; surface treated with rust‑proof primer, 18‑micron electrophoretic coating, and 30‑micron epoxy resin spray, ensuring no rust in 400‑hour salt spray or 100‑hour salt bath tests; paint film adhesion exceeds Grade 2 with certified test reports.
6. High‑quality construction – Seat and back shells made of high‑density hardwood plywood, offering elegant appearance, strong load‑bearing capacity, impact resistance, and anti‑deformation properties.
Detailed Specifications
Seat and Back Cushion: The foam used is manufactured according to ergonomic principles of sitting posture, featuring high elasticity, comfort, and durability. The seat foam density is greater than 60 kg/m³, and the back foam density is greater than 55 kg/m³.
Seat and Back Shell: Made from high‑quality, high‑density hardwood plywood, offering an elegant appearance, strong load‑bearing capacity, impact resistance, and anti‑deformation properties.
Upholstery Fabric: Imported linen velvet fabric is used, characterized by strong permeability, excellent sound absorption, wear resistance, colorfastness, moderate softness, and easy cleaning. Color and texture can be determined according to customer requirements. Additionally, it can be treated to meet specific needs such as 3M soil resistance, Teflon liquid and dust repellency, anti‑static, anti‑bacterial, anti‑mildew, and fire retardancy. The flame retardant performance can meet the requirements of Chinese standards GB8410‑94, GB17951‑1998, and British standards BS7176, BS5852, among others.
Base Legs: Independently supported design, aesthetically pleasing. Constructed from steel with a thickness not less than 3.0mm, and equipped with air outlets that can function as air conditioning vents, significantly enhancing user comfort. The chair legs undergo surface rust‑proof treatment, followed by an 18‑micron electrophoretic coating as a corrosion‑resistant primer. Then, a 30‑micron epoxy resin spray coating is applied, ensuring no rust occurs in salt spray tests of 400 hours or salt bath tests of 100 hours. The paint film adhesion exceeds Grade 2, and qualified test certificates are obtained.
Armrests: The armrest surface is made of beech or solid wood.
Return Mechanism: A spring plus damping automatic return mechanism ensures consistent and coordinated return movement, operates with zero noise, and provides trouble‑free use for over 200,000 cycles. Equipped with an imported damping device, it operates completely silently.
Floor Fixing Screws / Hardware: All screws, metal components, and chair leg screws undergo anti‑corrosion treatment according to standards. Metal parts such as chair legs receive rust‑proof and anti‑corrosion treatment.
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This auditorium chair model WLCH219S‑1 features a centre‑to‑centre distance of 600 mm, overall width of 720 mm, seat depth of 625 mm, armrest height of 150 mm, and seat height of 80 mm. Seat foam density exceeds 60 kg/m³ and back foam density exceeds 55 kg/m³, both offering high elasticity and durability. The concealed folding writing board is built into the armrest for quiet, space‑saving use. The spring‑damping return mechanism ensures zero‑noise automatic reset for over 200,000 cycles with an imported damping device. Upholstery uses imported linen velvet with customizable colors and optional treatments including 3M stain resistance, Teflon protection, anti‑static, anti‑bacterial, anti‑mildew, and fire retardancy meeting GB8410‑94, GB17951‑1998, BS7176, and BS5852. The steel base features a thickness of at least 3.0mm with rust‑proof, electrophoretic, and epoxy resin coatings, certified for corrosion resistance in salt spray and salt bath tests. Seat and back shells are crafted from high‑density hardwood plywood for superior strength and elegance. Armrests are made of beech or solid wood. Ideal for large conference halls, campus auditoriums, government lecture halls, and multi‑functional venues.
