| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 580 x 572 x 900 mm | |
|---|---|---|
| Seat height | 480 mm | |
| Seat width | 460 mm | |
| Seat depth | 420 mm | |
| Backrest height | 440 mm | |
| Leg base spread width | 520 mm | |
| Leg base spread depth | 510 mm | |
| Leg taper diameter at floor contact | 18 mm | |
| Seat front edge thickness | 35 mm | |
| Backrest top width | 420 mm | |
| Under-seat knee clearance height | 460 mm | |
| Floor contact point offset from seat edge | 120 mm | |
| Finished Seat Cushion Thickness | 90 mm | |
| Backrest Padding Thickness | 70 mm | |
| Lumbar Support Zone Height | 240 mm | |
| Clear Width Between Armrests | 540 mm |
Net weight / load capacity / users / durability
| Net weight per chair | 8.65 kg | |
|---|---|---|
| Recommended static load capacity | 160 kg | |
| Seat foam density (if upholstered) | 35 kg/m³ | |
| Back foam density (if upholstered) | 30 kg/m³ | |
| Foam rebound rate | 45% | |
| Seam stitch pitch | 8 stitches per 30mm | |
| Surface abrasion resistance (upholstered variant) | 30000 Martindale cycles | |
| Anti-slip foot pad static friction coefficient | 0.6 | |
| Warranty period | 3 years | |
| Available color options | 5 |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat-back shell | Integrated molded 12mm thick high-density polymer shell | |
|---|---|---|
| Shell surface finish | Matte black soft-touch polyurethane coating | |
| Internal support frame | 1.2mm thick powder-coated steel frame embedded in shell | |
| Legs | 22mm diameter tapered matte black powder-coated steel tubes | |
| Leg to seat connection | M8 zinc-plated steel bolt hardware with reinforced mounting plates | |
| Floor contact pads | 5mm thick non-marking TPE rubber foot pads | |
| Optional upholstery variant | 0.8mm thick PU faux leather over 40mm thick high-resilience foam | |
| Leg surface coating | 60μm thick epoxy powder coat, scratch-resistant | |
| Edge finishing | Rounded 5mm radius molded edges with no sharp corners | |
| Seat Internal Support Board Thickness | 14 mm bent plywood or equivalent support board | |
| Backrest Internal Frame Thickness | 14 mm bent plywood/composite reinforced frame | |
| Gas-lift Engineering Specification | Recommended Class 4; outer tube 50 mm; stroke 100 mm |
Adjustment / rotation / tilt / mobility / storage features
| Fixed height design | Non-adjustable 480mm seat height optimized for 760 mm dining tables | |
|---|---|---|
| Armless tuckable design | No protruding armrests to allow full tuck under standard dining tables | |
| Ergonomic lumbar support | Contoured 8° backward rake integrated into the molded back shell | |
| Four-point splayed leg stability | Outward-angled legs provide 520x510mm base footprint to resist tipping | |
| Knock-down assembly | Legs attach to seat base via included hex key hardware for home assembly | |
| Wipe-clean surface maintenance | Non-porous shell surface allows stain removal with damp cloth and mild detergent | |
| Floor protection | TPE foot pads prevent scratching of hardwood, tile, and laminate flooring | |
| Stacking compatibility | Up to 4 chairs can be stacked vertically for temporary storage | |
| Recline Angle / Lock Reference | 125° with 3suggested lock positions | |
| Tilt Tension User-weight Range | Reference adjustment coverage 120 kg | |
| Height Adjustment Stroke | 100 mm continuous travel | |
| Rotation / Mobility Configuration | 360° swivel with 5-caster multidirectional movement |
Verified carton / gross weight / assembly / loading data
| Reference Package Count | 1 set / 2 cartons | |
|---|---|---|
| Reference Assembly Time | 40 minutes per set | |
| Reference Carton Dimensions | 850× 420× 720 mm | |
| Reference Packaged Gross Weight | 23 kg/set | |
| Reference Carton Volume | 0.26 m³/set | |
| Indicative 20GP Loading | 135 sets at 85% space utilization | |
| Indicative 40HQ Loading | 320 sets at 85% space utilization |
Recommended spaces / users / usage modes
| Residential dining rooms | Pairs with standard 750mm height dining tables for everyday family meals | |
|---|---|---|
| Kitchen island seating | Tucks under island overhangs for casual breakfast and prep seating | |
| Coworking breakout areas | Lightweight stackable design for flexible event and meeting space setup | |
| Small apartment dining nooks | Compact footprint fits limited space without obstructing walkways | |
| Café and bistro seating | Wipe-clean surface supports high-turnover commercial food service use | |
| Home office side seating | Provides upright guest seating for temporary desk or meeting use | |
| Recommended Matching Desk Size | 2.4 m executive desk | |
| Reference Daily Use Duration | 8 hours/day; confirm by ergonomic testing |
EU Market Access Requirements* EN Standards
| EN 12520:2015 | Furniture strength, durability and safety requirements for domestic seating | |
|---|---|---|
| EN 1022:2018 | Domestic seating stability test method for non-adjustable chairs | |
| EN 16139:2013 | Non-domestic seating strength requirements for light contract use |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden/metal household furniture, applicable to structural stability | |
|---|---|---|
| GB/T 10357.3-2013 | Furniture mechanical test for chair seat and back static/durability performance | |
| GB 18584-2001 | Indoor decoration material limit of harmful substances for wood/furniture coatings |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden/metal household furniture, applicable to structural stability; 2. GB/T 10357.3-2013: Furniture mechanical test for chair seat and back static/durability performance; 3. GB 18584-2001: Indoor decoration material limit of harmful substances for wood/furniture coatings; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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