Requirements for rotary appliances of IEC60335 Standard General Scarifiers with rear discharge openings shall have a movable deflector, the closing torque of which shall not be less than0,30 Nm for machines with a cutting width of 300 mm or less, and not less than 0,40 Nm for machines with a cutting width of 300 mm to 600 mm. Discharge openings (chutes) When open discharge chutes are provided, no ...