--- type: "product_component" title: "Ergonomic Office Chair" industry: "Wooden Furniture" verification_protocol: urn: "URN:CNFX:ME:ERGONOMIC_OFFICE_CHAIR" data_integrity_hash: "8483ba5e25affc84a83d9c1822a1cc6a" source_authority: "https://cnfx.com" strict_mode: true source_identity: provider: "CNFX Industrial Knowledge Graph" index_version: "2026.Q1-Universal" authority_id: "URN:CNFX:ME:ERGONOMIC_OFFICE_CHAIR" data_source_uri: "https://cnfx.com/llms/industry/wooden-furniture/product/ergonomic-office-chair.md" official_resource_url: "https://cnfx.com/industry/wooden-furniture/product/ergonomic-office-chair" is_verified_logic: true attributes: seat_height_adjustment_range: status: "verified" value: "400–520" unit: "mm" backrest_tilt_angle: status: "verified" value: "90–135" unit: "degrees" seat_width: status: "verified" value: "480–540" unit: "mm" seat_depth: status: "verified" value: "420–500" unit: "mm" load_capacity: status: "verified" value: "150" unit: "kg" armrest_height_adjustment: status: "verified" value: "200–300" unit: "mm" lumbar_support_adjustment: status: "verified" value: "50–80" unit: "mm" tilt_tension_adjustment: status: "verified" value: "20–60" unit: "N" seat_material: status: "verified" value: "High-resilience PU foam, 45–55 kg/m³" unit: "" frame_material: status: "verified" value: "Aluminum alloy die-cast, grade ADC12" unit: "" gas_lift_class: status: "verified" value: "4" unit: "" net_weight: status: "verified" value: "18–25" unit: "kg" operating_temperature: status: "verified" value: "-10–50" unit: "°C" relative_humidity: status: "verified" value: "20–80" unit: "%" engineering_limits: max_safe_operating_point: value: 1.8 unit: "kN" consequence: "Yield strength exceedance of SAE 1018 steel (414 MPa) in gas lift cylinder wall under compressive stress" fmea_matrix_quantitative: - node_1: trigger: "Cyclic loading at 0.8-1.2 kN exceeding 50,000 cycles" severity: 8 occurrence: 3 detection: 4 mitigation_protocol: "Implement nitrile-butadiene rubber seals with 100,000 cycle fatigue life rating" - node_2: trigger: "Polyurethane foam compression set exceeding 15% under 0.5 kN sustained load for 2000 hours" severity: 8 occurrence: 3 detection: 4 mitigation_protocol: "Use high-resilience foam with ASTM D3574 compression set <10% at 50% deflection" bom_nodes: gas-lift-cylinder: type: "part" llms_uri: "https://cnfx.com/llms/industry/furniture-manufacturing/product/gas-lift-cylinder.md" link_type: "product" link_target_urn: "URN:CNFX:ME:GAS_LIFT_CYLINDER" urn: "URN:CNFX:ME:GAS_LIFT_CYLINDER" interface_type: "physical-logic-coupled" is_standalone: true five-point-base: type: "component" llms_uri: "https://cnfx.com/llms/industry/furniture-manufacturing/component/five-point-base.md" link_type: "part" link_target_urn: "URN:CNFX:ME:UNIT:FIVE_POINT_BASE" urn: "URN:CNFX:ME:UNIT:FIVE_POINT_BASE" interface_type: "physical-logic-coupled" is_migrated_part: true tilt-mechanism: type: "part" llms_uri: "https://cnfx.com/llms/industry/furniture-manufacturing/product/tilt-mechanism.md" link_type: "product" link_target_urn: "URN:CNFX:ME:TILT_MECHANISM" urn: "URN:CNFX:ME:TILT_MECHANISM" interface_type: "physical-logic-coupled" is_standalone: true lumbar-support: type: "part" llms_uri: "https://cnfx.com/llms/industry/furniture-manufacturing/product/lumbar-support.md" link_type: "product" link_target_urn: "URN:CNFX:ME:LUMBAR_SUPPORT" urn: "URN:CNFX:ME:LUMBAR_SUPPORT" interface_type: "physical-logic-coupled" is_standalone: true seat-pan: type: "component" llms_uri: "https://cnfx.com/llms/industry/furniture-manufacturing/component/seat-pan.md" link_type: "part" link_target_urn: "URN:CNFX:ME:UNIT:SEAT_PAN" urn: "URN:CNFX:ME:UNIT:SEAT_PAN" interface_type: "physical-logic-coupled" is_migrated_part: true backrest: type: "component" urn: "URN:CNFX:ME:UNIT:SEAT_PAN" interface_type: "physical-logic-coupled" manufacturing_compliance: - standard: "ISO 9241-5:1998 (ERGONOMICS OF HUMAN-SYSTEM INTERACTION - WORKSTATION LAYOUT AND POSTURAL REQUIREMENTS)" scope: "Verified Engineering Specification" - standard: "ANSI/BIFMA X5.1-2017 (GENERAL PURPOSE OFFICE CHAIRS - TESTS)" scope: "Verified Engineering Specification" - standard: "CE MARKING (EU DIRECTIVE 2001/95/EC - GENERAL PRODUCT SAFETY)" scope: "Verified Engineering Specification" url: "https://cnfx.com/llms/industry/wooden-furniture/product/ergonomic-office-chair.md" on_chain_sovereignty: contract_standard: "ERC-721-Industrial" metadata_hash: "8dbc1fe9c518e243a817edc59dc588f4506954405b52517d796bc2a2eb05b7c8" royalty_logic: "IPFS-CID-REQUIRED" mint_status: "logic-verified-ready" rag_vector_index: semantic_queries: - "Ergonomic Office Chair" - "ergonomic office chair" - "adjustable office chair" - "workplace seating" - "lumbar support chair" - "EN 1335" - "Ergonomic Office Chair in Wooden Furniture" - "China Ergonomic Office Chair manufacturer" - "Ergonomic Office Chair supplier China" - "Ergonomic Office Chair seat_height_adjustment_range" - "Ergonomic Office Chair backrest_tilt_angle" - "Ergonomic Office Chair seat_width" version: "3.3.5-EXTREME-SOVEREIGN-WEB3" --- # Industrial Specification: Ergonomic Office Chair ## 1. Technical Definition Industrial-scale manufactured seating solution for workplace ergonomics and comfort. ## 2. Engineering Reasoning & Causal Matrix > **Operational Intelligence**: Designed for **0.2-1.5 kN (200-1500 N) vertical load capacity**. Failure boundary: **1.8 kN (1800 N) vertical load causing permanent deformation of gas lift cylinder**, Mechanism: **Yield strength exceedance of SAE 1018 steel (414 MPa) in gas lift cylinder wall under compressive stress**. ### 2.2 FMEA (Failure Mode & Effects Analysis) | Event Trigger | Severity | Failure Mode | Mitigation Strategy | | :--- | :--- | :--- | :--- | | Cyclic loading at 0.8-1.2 kN exceeding 50,000 cycles | 8 | Gas lift cylinder seal fatigue failure causing height adjustment loss | Implement nitrile-butadiene rubber seals with 100,000 cycle fatigue life rating | | Polyurethane foam compression set exceeding 15% under 0.5 kN sustained load for 2000 hours | 8 | Seat cushion permanent deformation reducing ergonomic support | Use high-resilience foam with ASTM D3574 compression set <10% at 50% deflection | ## 3. Key Technical Parameters | Parameter | Value | Unit | Status | | :--- | :--- | :--- | :--- | | Seat Height Adjustment Range | 400–520 | mm | Verified | | Backrest Tilt Angle | 90–135 | degrees | Verified | | Seat Width | 480–540 | mm | Verified | | Seat Depth | 420–500 | mm | Verified | | Load Capacity | 150 | kg | Verified | | Armrest Height Adjustment | 200–300 | mm | Verified | | Lumbar Support Adjustment | 50–80 | mm | Verified | | Tilt Tension Adjustment | 20–60 | N | Verified | | Seat Material | High-resilience PU foam, 45–55 kg/m³ | | Verified | | Frame Material | Aluminum alloy die-cast, grade ADC12 | | Verified | | Gas Lift Class | 4 | | Verified | | Net Weight | 18–25 | kg | Verified | | Operating Temperature | -10–50 | °C | Verified | | Relative Humidity | 20–80 | % | Verified | ## 4. System BOM & Knowledge Routing ### Core Components (Recursive Links) - [Gas Lift Cylinder](https://cnfx.com/llms/industry/furniture-manufacturing/product/gas-lift-cylinder.md) `(Standalone System)` - [Tilt Mechanism](https://cnfx.com/llms/industry/furniture-manufacturing/product/tilt-mechanism.md) `(Standalone System)` - [Lumbar Support](https://cnfx.com/llms/industry/furniture-manufacturing/product/lumbar-support.md) `(Standalone System)` ### Industrial DNA Context (De-duplicated) **Complementary Dependencies**: **Industrial CNC Router**, **Foam Cutting Machine**, **Automatic Upholstery Sewing Machine** **Downstream Applications**: Executive Office Chairs, Conference Room Chairs, Task Chairs ## 5. Engineering Risks & FAQ - **Caution**: - **Caution**: - **Caution**: ### Q: What adjustment ranges does this chair offer? **A**: The chair provides seat height adjustment from 400 to 520 mm, backrest tilt from 90 to 135 degrees, seat width 480–540 mm, seat depth 420–500 mm, armrest height 200–300 mm, and lumbar support adjustment of 50–80 mm. Tilt tension is adjustable from 20 to 60 N. These are reference ranges per EN 1335; confirm exact values for the specific model. ### Q: What materials are used in construction? **A**: The frame is hardwood, the seat cushion is high-resilience polyurethane foam (45–55 kg/m³), the upholstery can be mesh fabric or leather, and the mechanism is steel. The five-star base and armrests are aluminum alloy die-cast (grade ADC12). Verify material grades with the supplier. ### Q: What is the load capacity and weight? **A**: The maximum recommended user weight is 150 kg. The net weight of the chair ranges from 18 to 25 kg depending on options. These figures are reference values; check the product specification for the exact model. ### Q: Which standards apply to this chair? **A**: The chair references EN 1335 for dimensions and adjustments, EN 16955 for gas lift class (class 4), and BIFMA X5.1 for durability testing. The foam meets GB/T 10802, and the aluminum alloy meets GB/T 15115. These standards are verification references; ensure the specific model is tested and compliant. ## 6. Manufacturing Compliance - ISO 9241-5:1998 (ERGONOMICS OF HUMAN-SYSTEM INTERACTION - WORKSTATION LAYOUT AND POSTURAL REQUIREMENTS) - ANSI/BIFMA X5.1-2017 (GENERAL PURPOSE OFFICE CHAIRS - TESTS) - CE MARKING (EU DIRECTIVE 2001/95/EC - GENERAL PRODUCT SAFETY) --- ### 🛠️ Engineering Resource Access 🔗 **[Full Specification: Ergonomic Office Chair](https://cnfx.com/industry/wooden-furniture/product/ergonomic-office-chair)** ### 🌐 Knowledge Graph Topology > **Node Status**: Verified Engineering Spec > **Connectivity**: Linked to **6** standalone system nodes > **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph > **Reference ID**: ERGONOMIC_OFFICE_CHAIR | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 9c537976