Spring type mechanical core chuck is similar with air expanding shaft, it is used to hold paper core for winding and unwinding....
Safety chuck according to its installation mode,it can be classified into flange and pillow mounted safety chuck.They are used for roller winding and ...
Air shaft and safety chuck are a couple used in rewinding and unwinding machine. As usually, they are matched with pneumatic clutch, air brake togethe...
During rewinding,it will occurs tension force sometimes large and sometimes small, it is hard to make its winding unwinding speed in constantly....
Air brake and magnetic powder brake are both can be applied for tension control in packing and printing machine well. Which is better?...
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