Door fatigue testing machine is used for testing the switching ability of cabinet door, the retractable connecting rod does rectilinear motion back and forth, which is the same as the motion of cabinet door switching and drawer being pulling and pushing. And it is easy to operate and convenient to control. From the test result, we can know the quality of specimen.
2、Design criteria :
3、 Main technical parameters：
Status of refrigerator : at room temperature 16～32°and disconnecting to power
Opening angle of refrigerator door: 90°
Requirement of cycle of cabinet opening: 8-25times/min (Refrigerator door opening and closing for a cycle)
Special requirement：it can be set to open 1 time/6-60min, and the opening time is 6～12s/time and adjustable. The maximum times of door opening can not be less than 990 thousand times.
Height of refrigerator door: the width of different doors is different, and the rocker arm can be adjusted for testing.
The direction of refrigerator door opening：left side and right side both work, and it suits for double door refrigerators.
Structure of refrigerator door：it can fulfill the testing requirements of drawer type front and rear door.
Test time: the timer counts down and its unit is minute.
Dimension of refrigerator: 1000mm X 3000mm X 900mm
Overall dimension: 850mm×1200mm×2200mm
Weight : 350KG
Power supply : AC220V±10%，50HZ
Do not use this tester in below condition:
A. Vibration and swing
B. Direct sunlight
C. High temperature, dusty, moist
D. Make sure the AC power outlet grounding
E. Forbid to use strong solvent (for example, benzene, nitro oil )to clean the outside surface of refrigerator.
F. Do not fill any water and sundries into the refrigerator to prevent the circuit elements from damaging and getting an electrical shock.
G. The manufacturer and the units which are approved by the National Metrology Department are responsible for dismantling and adjusting the display, other people can not dismantle it without any permission.