The consteuction of driving cylinder and licker-in with flat belt is simple and its starting is smooth and stable.
The doffer is driven by an inverter and a synchronous toothed belt which permits stepless variations of the speed.
Feed roller is driven by an electronic frequency converter which permits stepless variation of its speed and is controled to be synchronized with doffer by the computer.
Multi suction point on card ,continuous suction ,pressure continuous measure.
Double apron web take-off device allowing visual inspection of the web ensures sliver delivering constantly at high speed.
Special pressure mechanism provides the consistence betweem the pressure and the messurement.
Reversed revolving flats increase carding action ang improve wed quality . for flat stripping comb is replaced by the brushing roller and cleaning roller.
Electronicc control cabinet and saftycover are designed as an entirety with beautiful profile.
There are imported PLC and two imported inverters in the electronic control cabinet of card FA231A. it contols doffer's and feed moto's speed to make a stepless variablespeed and run it at the rate,with a smooth speed up and down,it is running steadily and reliably.
The imported display screen is erected on safty cover in the left front of machine. it can control each motor . it can display all data on dynamic technology and take an alarm for all faylts and full-can status,control center of whole machine jis a imported programmable controller, which operates simply and reliaby.