BIFMA X5.1 Chair Front Rear Stability Lab Equipment
TNJ-023 Chair Seats Front Stability Test Machine
Product Introduction:
Bifma X5.1 Chair Front Rear Stability Lab Equipment is designed to evaluate the front stability of chairs and office seating. This equipment ensures that the tested product meets safety and performance standards under specific loading conditions.
Technical Specifications of Bifma X5.1 Chair Front Rear Stability Lab Equipment:
- Seat Surface Load: Maximum 600 N (cumulative)
- Tensile Force: 20 N
- Loading Point Position: Center of the seat surface, 60 mm from the front edge
- Load Pad: Diameter 200 mm, curved surface R300 mm, with 9 pins
- Load Rod: 19 mm diameter, A type: spherical SR19 mm, B type: sharp surface at 45°
- Weight Basket Control: Manual operation
- Overall Dimensions: 100 x 140 x 105 cm
- Weight: 500 kg
- Air Supply: 6 kgf/cm² stable air source
- Standards Compliance: ANSI/BIFMA X5.1 - 12.4 Front Stability; EN 1022, EN 1729-2
Test Methods Reference:
12.4.2 Test Procedure - Alternative A (See Figures 12c and 12d)
a) This alternative is only applicable for chairs without a seat surface that can support the stability fixture (e.g., mesh, web, or strap structures).
b) Apply a vertical load of 600 N (135 lbf.) using a 200 mm (7.87 in.) diameter disk, centered 60 mm (2.4 in.) from the front center edge of the seat's load-bearing surface.
c) Apply a horizontal force of 20 N (4.5 lbf.) at the same height as the top of the seat, aligned with the side-to-side centerline.
12.4.3 Test Procedure - Alternative B (See Figures 12f and 12g)
a) Apply a vertical load of 600 N (135 lbf.) using the front stability loading fixture shown in Figure 12g, placed 60 mm (2.4 in.) from the front center edge of the chair's load-bearing surface.
b) Apply a horizontal force of 20 N (4.5 lbf.) at the same height as the top of the seat, aligned with the side-to-side centerline.
12.4.4 Acceptance Criteria: The chair must not tip over during the test application of forces.
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