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This machine is suitable for the comprehensive test of office chair armrest and backrest, for the test of office chair armrest, backrest strength and fatigue. The armrest of arm strength test is mainly used for testing all kinds of seats being in good condition after the pressure, to simulate the during normal use and habitual misuse, a single or repetitive loading conditions of strength or ability test, is used to test the product in May encounter heavy load conditions the intensity with which assess the armrest of office chairs along the horizontal direction and vertical direction under compressive capacity; Handrail fatigue test is to simulate the durability of handrail parts in normal use and habitual misuse.
| A. handrail strength and fatigue test technical parameters: |
| 1. Sensor: 200kg/500kg |
| 2. Application arm length: 23.6in(600mm) |
| 3. Application load: 50Lb ~ 300Lb or as specified |
| 4. Height of handrail: adjustable from 500 to 900mm |
| 5. Test speed: 5-30 times/min or specified |
| 6. Vertical pressure plate: length: 127±13 mm |
| 7. Fixed shaft of horizontal handrail: the width shall not exceed |
| 8. Adjustable distance from cylinder pivot to loading pad: 500 ~ 900mm |
| 9. The cylinder output force with a diameter of 50mm can meet the strength and accuracy requirements of the handrail test |
| 10. Load pad width 100mm, apply force on the handrail at a 10 degree incline Angle |
| 11 import SMC automatic adjustment or precision pressure regulating valve device to ensure the cylinder output force is stable and reliable, digital display cylinder output force value |
| 12. PLC control and touch screen have real-time display of speed, frequency, times and force |
| 13. Air source: air pressure: ≥ 0.5mpa;Flow rate: ≥800L/min;The air source is filtered and dried |
| 14. Standard configuration accessories: 1 set of armrest loading equipment; Cylinder swivel 2 pieces; Chair fixing chair pressing plate 2 pieces |
| 15. Handrail strength test: Handrail vertical test: payload, applying a force of 750N(168lbf) for one minute;To ensure load, apply a 1125N(253lbf) force for one minute. Armrest level test: payload, applying a 445N(100lbf) outward force for one minute;To ensure the load, apply an outward force of 667N(150lbf) for one minute. |
| 16. Armrest fatigue test: apply 400N force to the armrest at the same time, repeat test at 10-30 times/min frequency |
| B. Backrest strength and fatigue test technical parameters: |
| 1. The output force of the cylinder less than 150 kg force; |
| 2. The width of the test platform is 1000mm |
| 3. Output maximum stroke: 600mm |
| 4. Cylinder can be adjusted to test the fastest cycle of 20 times/min |
| 5. Backrest fatigue test: apply 445N (100 LBS) force to the back of the chair and repeat the test 10-30 times per minute |
| 6. Backrest strength test: A. Functional load: apply 890N (200lb) force to the back of the chair for 1 minute B. Destructive load: apply 1334N (300 LBS) force to the back of the chair for 1 minute. |
| 7. Air source: air pressure: ≥ 0.5mpa;Traffic: 800 l/min or more |
| 8. Standard configuration accessories: 1 piece of backrest loading pad, 50 pieces of standard sand bag (5 LBS/piece), 2 pieces of chair fixing press plate, 1 piece of l-shaped face baffle plate,C. Power supply: 1 wire, AC220V, 50HZ, 5A |
| 9. Control system: 1) force control: pressure regulating valve +SMC sensor + digital force display; 2) power transfer: pulley group can slide and fix; 3) automatic control: touch screen +PLC, with power off memory and breakpoint stop function. |
| QB/T 2280-2016 |
| BIFMA X5.1-2017 |
| GB/T 10357.3 |
| EN 1335:2000 |
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