Support Pad: Weight Capacity Up to 150 kg, Thickness 20-50 mm

Q: What is the primary function of a lumbar support pad?

The primary function is to provide ergonomic support to the lower back region, maintaining natural spinal curvature, reducing pressure points, and preventing musculoskeletal discomfort during prolonged sitting.

Q: How do I select the right lumbar support pad?

Consider material density (40-60 kg/m³ foam recommended), thickness (20-50 mm based on application), breathability, durability requirements, and compatibility with your seating system's dimensions and attachment mechanisms.

Q: Can lumbar support pads be adjusted?

Yes, many modern designs feature adjustable positioning (height and depth) and firmness settings to accommodate different body types and preferences, though the pad itself is typically a fixed component within adjustable systems.

Component Specifications

Definition

The lumbar support pad is a specialized cushioning element integrated into seating structures, typically positioned at the lower back region (L1-L5 vertebrae). It functions as a pressure-distributing interface between the rigid seat structure and the human body, engineered to maintain proper spinal alignment, reduce musculoskeletal strain, and enhance seating comfort during prolonged use. This component is critical in ergonomic seating systems across automotive, office furniture, and medical applications.

Working Principle

The lumbar support pad operates on biomechanical and pressure distribution principles. It deforms under body weight to contour to the natural lumbar curve, creating a supportive surface that reduces pressure points. The pad's resilience allows it to absorb and redistribute forces, maintaining consistent support through various sitting postures while minimizing tissue compression and promoting blood circulation.

Materials

Polyurethane foam (density: 40-60 kg/m³, firmness: 25-35 ILD), memory foam (viscoelastic polyurethane), gel-infused foam, or multi-layer composite materials with breathable fabric covers (polyester, mesh, or leatherette).

Technical Parameters

Parameter	Typical range	Notes & selection driver
Thickness	20-50 mm
Dimensions	200x150 mm to 300x200 mm
Durability	>100,000 compression cycles
Compression Set	<10%
Weight Capacity	Up to 150 kg
Temperature Range	-20°C to 70°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 16840-2, ISO 7176-7, DIN 4556

Parent Products

This component is used in the following industrial products

Lumbar Support

A specialized component integrated into ergonomic office chairs that provides adjustable support to the lumbar region of the spine, maintaining proper spinal alignment and reducing pressure on intervertebral discs during prolonged sitting.

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Engineering Analysis

Risks & Mitigation

Material degradation over time
Inadequate support leading to back pain
Poor breathability causing discomfort
Incompatibility with seating system
Fire safety concerns with certain foams

FMEA Triads

Trigger: Material fatigue from repeated compression
Failure: Loss of support and permanent deformation
Mitigation: Use high-resilience foam with compression set <10%, implement regular inspection schedules, and design with adequate thickness margins

Trigger: Poor ventilation design
Failure: Heat buildup and moisture accumulation
Mitigation: Incorporate breathable materials, perforated designs, or gel-infused layers for temperature regulation

Trigger: Incorrect installation or positioning
Failure: Ineffective support and user discomfort
Mitigation: Provide clear installation guides, standardized mounting systems, and adjustable positioning mechanisms

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±2 mm dimensional tolerance, ±5% density variation

Test Method

ISO 16840-2 for seating support properties, compression testing per ASTM D3574, flammability testing per FMVSS 302

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Support Pad

Manufacturer profiles associated with Support Pad.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the primary function of a lumbar support pad?