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| Model | The product name | Technical parameters | |
| LT - JJ02 - B | Strength testing machine for backrest and armrest of office chairs Strength tester for chair back and armrest |
A. handrail strength test technical parameters: | |
| 1. Cylinder travel: 0 ~ 600mm | |||
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2. Electric range: 0 ~ 600mm | ||
| 3. Application load: 50Lb ~ 300Lb or as specified | |||
| 4. Sensor: 200kg | |||
| 5. Test speed: 5-30 times/min or specified | |||
| 6. Vertical pressure plate: diameter: 127±13 mm | |||
| 7. Fixed shaft of horizontal handrail: the width shall not exceed 25mm | |||
| 8. Adjustable distance from cylinder to loading pad: 500 ~ 900mm | |||
| 9. Machine size: 2200*1080*2200mm (L*W*H) | |||
| 10. SMC regulating valve device to ensure the cylinder output force is stable and reliable, digital display cylinder output force value | |||
| 11. PLC control and touch screen have real-time display of speed, frequency, times and force | |||
| 12. Standard configuration accessories: 1 set of armrest loading equipment; Cylinder swivel 2 pieces; Chair fixing chair pressing plate 2 pieces | |||
| B. backrest strength test technical parameters: | |||
| Conform to the standard | 1. The output force of the cylinder shall not be greater than 150 kg force | ||
| QB/T 2280-2016 | BIFMA X5.1-2017 | 2. The width of the test platform is 1000mm | |
| EN 1335:2000 | 3. Output maximum stroke: 600mm | ||
| The product description | 4. Cylinder can be adjusted to test the fastest cycle of 20 times/min | ||
| This machine is suitable for the comprehensive test of office chair armrest and backrest, for the test of the strength of office chair armrest and backrest. 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; The backrest strength test is used to assess the chair's resistance to pressure, simulating the pressure applied to the back of the chair when the user presses back. | 5. 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 |
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| 6. 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 (power) : 220VAC/2A | |||
| D. Air source: air pressure: ≥ 0.5mpa; Flow rate: ≥800L/min; The air source is filtered and dried | |||
| Product features | |||
| 1. This device is a multi-functional test device, and cylinder output force or displacement can be selected; |
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| 2. The output Angle of the cylinder can be changed by sliding the position of the fixed pulley; | |||
| 3. The loading pad is bound to the back of the chair, and the cylinder is connected with the ribbon. After the cylinder is unloaded, the back of the chair will naturally recover to its original state by its own elasticity; |
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