vertical and horizontal traction (rotation by 90) Pneumatic open and close track Max traction:30 KN Max line speed:30m/min corss guide pulley on the inlet(Φ38mm)to rotate with the traction Pneumatic adjustable tension / pressure for track Characteristics: It is totally enclosed so that dust contamination has been reduced. ALRTAC cylinder and shanghai fulong traction belt have been used.Several Kinds of pitches are supported by servo motor, so it is running smooth.