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| Brand Name : | HAIDA | 
| Certification : | ISO 9001:2000; ISO 9001:2008; QS-9000; ISO 14001:2004; CE, , SMC, CMC, CPA, CE,CMA,IMC | 
| Model Number : | HD-F780 | 
| Price : | Negotiable | 
| Delivery Time : | 20 days after order confirmed | 
| Payment Terms : | L/C,D/A,D/P,T/T,Western Union,MoneyGram,In cash, escrow | 
| Supply Ability : | 300 Sets per Month Haida | 
LCD Counter Furniture Testing Machines , Chair Backrest Durability
Testing Machine Chair Seat and Back Test Video
 Chair Seat and Back Test Video
Applicability
This test shall be performed on Type Il and lll chairs.
( Type II - Fixed seat angle, tilting backrest
Type lll - Fixed seat angle, fixed backrest )
Note: This test does not apply to chairs with backrest height less
than 200 mm (7.9 in.).
Purpose of Test
The purpose of this test is to evaluate the ability of the chairs
to withstand fatigue stresses and
wear caused by rearward force on the backrest of the chair.
Specifications
Office Chair Back Durability Tester
1. Professional design
2. High quality with reasonable price
3. One year warranty free.
The parameters
Office Chair Back Durability Tester
| Height of Seat Back | 500~1200 mm or specified | 
| Weight of Seat | 225 lb or specified | 
| Air Pressure | 0~150 Ib | 
| Stroke | 0~18 in | 
| Force Angle | 0~90° | 
| Test Speed | 16 - 20 times/min or specified | 
| Counter | LCD, 0~999, 999 | 
| Dimension (W×D×H) | 66 × 136 × 140 cm | 
| Weight | 549 kg | 
| Power | AC220V, 3A | 
The usage
Office Chair Back Durability Tester
It`s to evaluate the ability of the chair back to withstand the
fatigue stress and wear that occur as the result of user exerting
backward pressure on the chair.
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