... is professional manufacturer for coil winding tensioner,We offer Magnet Damper, Mechanical tensioner, Magnetic tensioner,electronic tensioner and servo tensioner ... way eliminate pulse. 3. Loosen screw, will turn to 10, turn the scale axis at the same time slow will ... pulsation adjustment method 3 steps until the satisfied tension. 5. Damper magnet produce media magnetic field, use material, the use ...