EXACTROL ELECTRONIC WIRE TENSIONING SYSTEM
STANDARD FEATURES The Globe EXACTROL EWT Series wire tensioning systems provides electric motor manufacturers with a number of options to achieve and maintain optimum magnet wire tension during armature winding. TENSION CONTROL ON MDF 5000 & 8000 WINDERS. A pair of tensioning head assemblies, one for each wire entering the winding head. Mounting brackets to mount on the MDF winder. Model of tensioning heads determined by the size of wire (see attached chart). Wire tension is defined in the MDF part parameter winder software included in the winding machine. Wire tension for the winding of a coil is typically established for each step in the winding process. Initial index Hooking Accelerating Winding Decelerating First index to wind And beyond is optional Wire tension steps can be established and repeated for each individual coil of the armature.  In other words, a tension profile can be completed for each coil making up the completed armature. Mechanical dancer arms with spring tensioners are used to “take-up” loose wire during the winding process.
MODEL METRIC AWG EWT-100 0.08-0.13 40-36 EWT-101 0.14-0.23 35-29 EWT-300 0.25-0.45 28-26 EWT-301 0.46-0.71 25-22 EWT-700 0.72-1.02 21-19 EWT-701 1.03-1.29 18-16
TENSION CONTROL SYSTEM FOR GENERAL ARMATURE WINDERS, COIL WINDERS, AND OTHER APPLICATIONS. One solid state monitor control module to control a pair of tensioning head assemblies. Mounting brackets to mount two (2) tensioning heads. Three (3) preset tensions are established and can be accessed from the machine control. Three (3) decade digital displays are used to show the values of tension on the control module.               APPLICATION INFORMATION The attached winding tension chart is included to define some approximate tension limits used by Globe to set up the tensioning devices.  These tension limits generally represent the tension force limit before the copper wire is elongated.  Wire size is also defined in AWG and metric sizes.	WINDING TENSION - Copper Magnet Wire Wire Size Tension Limit MM AWG METRIC U.S. 0.0787 40 34.019 g .075 lbs 0.1016 38 57.153 g .126 lbs 0.1270 36 88.904 g .196 lbs 0.1600 34 141.521 g .312 lbs 0.2032 32 228.157 g .503 lbs 0.2261 31 282.134 g .622 lbs 0.2540 30 356.070 g .785 lbs 0.2870 29 453.592 g 1.000 lbs 0.3200 28 544.311 g 1.200 lbs 0.3607 27 725.748 g 1.600 lbs 0.4039 26 907.184 g 2.000 lbs 0.4547 25 1.134 Kg 2.500 lbs 0.5105 24 1.451 Kg 3.200 lbs 0.5740 23 1.814 Kg 4.000 lbs 0.6426 22 2.268 Kg 5.000 lbs 0.7239 21 2.903 Kg 6.400 lbs 0.8128 20 3.629 Kg 8.000 lbs 0.9119 19 4.536 Kg 10.000 lbs 1.0236 18 5.897 Kg 13.000 lbs 1.1506 17 7.257 Kg 16.000 lbs 1.2903 16 9.072 Kg 20.000 lbs
SPECIFICATIONS: Electrical Requirements 120/220 VAC, 50/60 HERTZ EWT Electronic Control Module (approximate)  WIDTH:          165 mm (  6.50 inches)  HEIGHT:         286 mm (11.25 inches)  LENGTH:        391 mm (15.40 inches)  EWT Weight (approximate) 9.5 kilograms (21 pounds)	Technical specifications subject to change without notice.
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