Magnetic clutches and brakesFeatures and BenefitsFast, precise torque adjustment Torque is set with a large knurled adjust- ment ring Infinite adjustability between minimum and maximum settings. This allows units to be fine tuned to your unique require- ment.Torque is constant with respect to speed By using the Precision Tork unit, you can solve almost any torque control problem Torque is extremely consistent and smooth at low, as well as high speedsNo external control or power source Simple to install Nothing to monitor Unaffected by power interruption or power fluctuation Safe to usePrecision Tork units provide constant torque independent of slip speed. They offer excellent overload and jam protec- tion for all drive train components and also provide soft starts with zero slip when a preset torque is reached. Precision Tork permanent magnet clutches and brakes do not require maintenance and provide extremely long life.Dependable performance Smallest possible transition from static to dynamic torque Virtually eliminates the “stick-slip” pheno- menon associated with friction devices Long life. The only wearing parts are the ball bearings Extremely accurate. Precision Tork units out-perform all other devices at low RPMVersatile mounting: Easy to retrofit Clutches are available with hollow bores for mounting on motor shafts or jack shafts Bolt circles allow for fixed mounting, adding a pulley, or stub shaft adapters Brakes are available with solid shaft outputsRotating centre discLow drag sealsDichromate coating for improved corrosion resistanceHollow shaft for direct mountingBolt circles on both ends for versatile mountingTorque adjustment ring establishes position of permanent magnets to vary the amount of torqueEasy-to-read graduationsPrecision ball bearings. There are no other mechanical wear parts or electrical com- ponents to failMultiple pole high energy magnetsSPECIAL APPLICATIONSSpecials are our business. . . Special shaft bores and keyways Shaft extensions System retrofits Metric bores and keyways Stainless steel construction Fixed torque unitsMC4DStainless steelLong shaft extension43ApplicationsUnwind tension controlBrake mounted on shaft of unwinds spool or bobbinInformation required: Full roll (m) = 0,15 core (m) = 0,1 Average tension (N) = 18 Velocity (m/mn) = 30How to size: Average radius = (Full roll + core ) / 4 = (0,15 + 0,1) / 4 = 0,06 mAverage tension (Nm) = Average tension Average radius = 18 0,06 = 1,08 NmCheck tension range: Max. tension = Torque 2 / core = 1,08 2 / 0,1 = 21,6 N Min. tension = Torque 2 / full roll = 1,08 2 / 0,15 = 14,4 N Slip watts (watt) = (Max. tension velocity) / 60 = (21,6 30) / 60 = 10,8 wattsSelect MC4 Model Cycling applicationNip roll or pulley tension controlOverload protection / Torque limiting / Soft startFilm unwind Tension provided by hysteresis unitsBottle capping Constant torque provided by a hysteresis clutchClutchCoil winding Constant tension provided by hysteresis unitFilm tensioning Constant tensioning supplied by hysteresis unitMotorBrakeBobbinTorque limiting Hysteresis clutch provides overload protectionMotor horsepower methodCouplingMotorStub Shaft AdapterMaterial handling Hysteresis clutch can provide overload protection and soft startConveyorClutchMotorInformation required: Slip = 500 tr/mn Torque = 0,90 Nm % slip time of total cycle time = 25%How to size:Select an MC4 Model from the specification chart.* Consult factory if peak slip watts are extremely high or if duration of slip period is in excess of 1 minuteInformation required: Pulley or nip roll diameter = 0,1 m Tension = 26 N Velocity = 30 m/mnHow to size: Torque = Tension / 2 = 26 0,1 / 2 = 1,3 Nm Slip watts = (max. tension velocity) / 60 = (26 30) / 60 = 13 wattsSelect MC5 ModelInformation required: Power motor = 0,37 kw Speed motor = 1750 RPMHow to size: Torque = 9550 kw / N = 9550 0,37 / 1750 = 2 NmSelect an MC5 Model from the specification chart.*Watts =Torque slip 0,25 =500 0,9 0,25 = 11,8 watts 9,559,5544Magnetic clutches and brakesSpecificationsTypical mountingBrake Typical setup for tensioning wire, film and fibersClutch Typical setup for material handling, soft starts and torque limitingClutch Coupling Typical setup for torque limiting protection used for labeling, capping and printing appli- cationsFlexible couplingStub shaft adapterClutchBrake*Minimum speed = 2 RPMCLUTCHESModelsTorqueDissipationInertiaBendingSpeedWeightStandardmin. momentbores15 pcs (Watts)(kgm2)(Nm)(RPM)(kg)(Inch)(mm)MC1.50,071 - 0,71 Ncm104,9 x 10-60,5636000,311/4 MC20,071- 1,58 Ncm104,9 x 10-60,5636000,311/4 MC30,033 - 0,68 Nm184,6 x 10-51,118000,93/8 MC40,056 - 1,24 Nm229,4 x 10-51,118001,133/8,1/2,5/8 MC50,11 - 3,4 Nm725,4 x 10-42,8218004,083/8, 1/2, 5/8, 3/4, 7/8, 1 MC5.50,11 - 5,6 Nm1108,5 x 10-42,8218004,995/8, 3/4, 7/8, 1 MC60,22 - 7,9 Nm1501,4 x 10-32,8218005,445/8, 3/4, 7/8, 1 MC91,69 - 33,8 N