HAIDA HD-F735 Armrest & Leg Fatigue Testing Machine
| Brand | HAIDA INTERNATIONAL |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Model | HD-F735 |
| Max Test Force | 200 kg × 3 (simultaneous) |
| Frequency Range | 10–30 cycles/min |
| Stroke Control | Motorized Vertical Adjustment |
| Force Actuation | Servo-Proportional Pneumatic Valve |
| Load Sensing | Three 200 kg Load Cells |
| Test Count Range | 1–999,999 cycles (user-defined) |
| Sample Height Range | 500–750 mm |
| Test Table Width | 800 mm |
| Power Supply | AC 220 V, 5 A, 50 Hz |
| Air Supply Requirement | ≥0.6 MPa (6 bar) |
| Rated Power | 200 W |
| Dimensions (L×W×H) | 2400 × 1000 × 1950 mm |
| Compliance Standards | GB 10357.3, QB/T 2280-2007, EN 1335:2009, EN 12520:2010 / EN 1728:2012, BIFMA 5.1-2017 |
Overview
The HAIDA HD-F735 Armrest & Leg Fatigue Testing Machine is an electromechanical-pneumatic hybrid test system engineered for high-reproducibility cyclic loading of chair armrests, leg structures, and base assemblies under standardized static and dynamic load conditions. It operates on a dual-actuation principle: servo-proportional pneumatic cylinders deliver precisely regulated force vectors—vertical, downward, horizontal, or lateral—while motorized vertical positioning ensures repeatable actuator alignment across variable seat heights (500–750 mm). The machine executes controlled displacement-based fatigue protocols per internationally recognized furniture durability standards, including EN 1335, EN 1728, BIFMA 5.1, and GB/QB series specifications. Its modular fixture architecture enables rapid reconfiguration between armrest durability, front/side leg strength, and combined multi-point loading tests—without mechanical recalibration.
Key Features
- Triple-load-cell architecture (200 kg × 3) with real-time digital force feedback and closed-loop servo-proportional pneumatic control for stable, drift-free load application.
- PLC-based control system with industrial-grade 7-inch touch HMI interface featuring power-loss memory, cycle count retention, and programmable stop-on-failure logic.
- Motorized vertical stroke adjustment ensures precise actuator positioning; eliminates manual height calibration and improves inter-laboratory repeatability.
- Integrated safety interlocks: optical proximity sensors detect structural failure (e.g., armrest fracture or detachment), triggering immediate pneumatic exhaust and mechanical brake engagement.
- Quick-connect fixture interface supports standardized loading pads (Ø100 mm, Ø200 mm, Ø203 mm, 127×80 mm), EN-compliant armrest anvils, and adjustable clamping systems for chair legs, bases, and backrest anchors.
- Comprehensive overload protection: pressure relief valves, thermal cutoffs on drive motors, and software-enforced force ceiling limits prevent over-stressing of test specimens or actuation hardware.
Sample Compatibility & Compliance
The HD-F735 accommodates a broad range of seating products—including office chairs, task chairs, stools, plastic-molded chairs, and solid-wood dining chairs—with maximum footprint width of 800 mm and height-adjustable mounting capability. Fixture kits are pre-validated against key regulatory benchmarks: GB 10357.3 (clauses 4.6, 4.9), QB/T 2280-2007 (6.6.5–6.6.6), EN 1335:2009 (7.2.3–7.2.5), EN 12520:2010 / EN 1728:2012 (6.10–6.11), and BIFMA 5.1-2017 (Sections 17 and 20.1.2.3). All test sequences are executable with traceable parameter logging, supporting GLP-aligned validation documentation and audit-ready reporting for ISO/IEC 17025-accredited laboratories.
Software & Data Management
The embedded control firmware records time-stamped force, cycle count, actuator position, and alarm events at 10 Hz sampling rate. Data exports to CSV format via USB port for post-processing in Excel, MATLAB, or statistical analysis platforms. While the base system does not include FDA 21 CFR Part 11-compliant electronic signatures, optional firmware upgrade packages provide user role management, audit trail generation, and electronic record integrity features compatible with GMP and ISO 9001 quality management systems. Calibration certificates for load cells and pressure transducers are supplied with NIST-traceable documentation.
Applications
Primary applications include armrest downward static load testing (central/front positions), lateral armrest loading, front/side leg strength verification, and full-cycle armrest durability assessment (cyclic loading at 10–30 cpm). Secondary configurations—enabled by optional fixtures—support rocking mechanism endurance, seat pan flexure, and tilt mechanism fatigue evaluation. The HD-F735 serves R&D labs, third-party certification bodies (e.g., SGS, TÜV, Intertek), and OEM quality assurance departments performing incoming inspection, design validation, and production lot release testing.
FAQ
What standards does the HD-F735 directly support without modification?
GB 10357.3, QB/T 2280-2007, EN 1335:2009, EN 12520:2010, EN 1728:2012, and BIFMA 5.1-2017.
Can the machine perform simultaneous multi-point loading?
Yes—three independent 200 kg load cells and synchronized pneumatic actuators allow concurrent vertical + lateral loading per test protocol requirements.
Is air supply included with the system?
No—the HD-F735 requires an external compressed air source delivering ≥0.6 MPa (6 bar) with oil-free filtration and moisture separation.
What is the resolution and accuracy of force measurement?
Each 200 kg load cell provides ±0.5% FS accuracy and 0.1 kg resolution, calibrated per ISO 376:2011 Annex C.
Does the system support remote monitoring or Ethernet connectivity?
Standard configuration includes only local HMI and USB data export; RS-485 or Ethernet modules are available as factory-installed options.
