1. Product Function and Application
The King Size Foam Fatigue Tester is a single-station fatigue testing machine designed for evaluating the durability and performance of full-size foam mattresses, including standard King and California King sizes.
It performs fatigue testing in accordance with ASTM D3574 – “Dynamic Fatigue Test by Constant Force Pounding”, simulating long-term, repetitive loading to assess the foam’s resistance to compression and deformation over time.
The system is ideal for mattress manufacturers, foam suppliers, and testing laboratories seeking to ensure product quality, consistency, and compliance with international standards for comfort and durability.
Widely used in the furniture, bedding, foam production, and material testing industries to determine the fatigue resistance, durability, and structural performance of large foam or composite mattress systems under repeated loading.
2. Applicable Test Standards
This tester meets or exceeds the requirements of:
ASTM D3574 — Standard Test Methods for Flexible Cellular Materials (Foam)
Dynamic Fatigue Test by Constant Force Pounding
ISO 2439 — Determination of indentation hardness and deflection
Other related foam compression and fatigue test standards
3. Technical Specifications
| Item | Specification |
|---|---|
| Test Type | Dynamic fatigue test (constant force or constant displacement) |
| Platform Size | Large enough for standard King or California King size mattress |
| Gantry System | Manually positioned X-Y gantry for testing at any location |
| Sample Retainers | Four manually adjustable corner retainers |
| Cylinder Stroke | 12 inches (custom options available) |
| Load Cell Capacity | 500 lbs (fatigue-rated; optional capacities available) |
| Indenter Foot | 250 mm diameter, as specified by ASTM D3574 |
| Cycle Rate | Up to 70 cycles per minute |
| Control System | Touchscreen PLC with selectable test modes |
| Operating Modes | Constant Force / Constant Displacement |
| Power Requirement | 120 VAC |
| Air Requirement | 80 PSI compressed air |
| Customization | Load cell sizes, stroke lengths, cycle speeds, and indenter styles available upon request |
4. Product Advantages and Features
Full-Size Testing Capability – Accommodates King and California King mattresses for real-world performance assessment.
Dual Operating Modes – Switch between constant force and constant displacement modes for flexible testing options.
High-Frequency Operation – Runs up to 70 cycles per minute, reducing total test time while maintaining accuracy.
Precision Load Control – 500 lb fatigue-rated load cell ensures stable, repeatable results under dynamic loading.
Versatile X-Y Gantry System – Allows targeted fatigue testing on any location of the mattress surface.
User-Friendly Touchscreen PLC – Simplifies control, monitoring, and data recording during testing.
Customizable Design – Optional configurations for stroke length, indenter type, and load cell range to meet diverse testing needs.
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