KW-BFM-10-01 Chair Backrest Tester (Back pulling)

Working Rationale:1 Imitate human body sit in a chair and lean back action to test the back performance.
2 Place 250lbs 16 dia sand bag in the seat,apply a force that is initially 90 degrees ± 10 degrees to the plane of the backrest.
3 Record the testing cycle, evaluate the product performance.
Structure Characteristics:
1 Multi-function testing equipment，out-force and traveling for selection.
2 Through change the position of Pulley to change out-force direction of air cylinder.
3 The form-fitting Device was fasten to backrest which was connect to the air cylinder by Ribbon. When the force was lost, the backrest will return to the original state.
4 Precision manual pressure regulating valve ensure to get the stable and reliable out-force value which indicate in the digital display.
5 L style Baffle plate+Lstyle Pressure plate fix the base；Manual screw to keep pressing.
6 RPM disply can be adjusted.
Parameter:
1 More than 150kg out-force.
2 More than 1000mm testing platform
3 600mm Air cylinder traveling
4 20 cycles per min for the max Air cylinder Cyclic rate.