The upper and lower multi wedge belts are pulled in the form of pneumatic compression and pneumatic tension. The compression and tension are adjusted by a pneumatic pressure regulating valve respectively.
The AC variable frequency motor is driven separately, and the traction speed is stepless adjusted.
The traction rotating body and take-up rotating body share a motor and realize synchronous rotation through mechanical transmission.
Pneumatic butterfly brake.
Electronic meter counting, the meter counting shall be reserved to one decimal place.