Barrel Heaters - Hasmak.com.tr

W A T L O W<strong>Heaters</strong>MI BandApplications andTechnical Data• Review Watt Density chart onpage 366 to ensure that theapplication does not exceed themaximum watt density atoperating temperature afterapplying derating factors.• Locate clamping guideline for unitdiameter, width and watt density.• Description of guideline lettersare at lower left of page.• Note: Upward arrows are up toand not including specified wattdensity. Downward arrows aregreater than or equal to specifiedwatt density.Blow Molding<strong>Heaters</strong>MI <strong>Barrel</strong> Clamping Matrix Application GuideDia.8 > 10 10 > 12 12 > 14 14 > 16 16 > 18 18 > 20 20 > 22 22 > 24 24 > 26 26 > 28Width1 1 2 in. 4 1 2 in.to 4in.to 7in.1 1 2 in.to 4in.4 1 2 in.to 7in.1 1 2 in.to 4in.4 1 2 in.to 7in.1 1 2 in.to 4in.4 1 2 in.to 7in.1 1 2 in.to 4in.4 11 2 in.to 7in.1 1 2 in.to 4in.4 1 2 in.to 7in.1 1 2 in.to 4in.4 1 2 in.to 7in.1 1 2 in.to 4in.4 1 2 in.to 7in.1 1 2 in.to 4in.4 1 2 in.to 7in.1 1 2 in.to 4in.4 1 2 in.to 7in.Watt Density–W/in 28075706560555045403530252015100BABABABABABADCDCDCDCAbove Re<strong>com</strong>mended Watt DensitiesConsult EngineeringA = Standard clamping, expandable or one piece construction Width Clamp Points at Each GapB = Spring clamps, expandable or one piece construction ≥ 127 mm (5 in.) 3C = Spring clamps, at one gap, welded barrel nuts at other gap ≥ 76.2 mm (3 in.) 2D = Spring clamps, spring clamps at both gaps < 76.2 mm (3 in.) 1DCDCDCDCDCDCDCDCDCDCMI Installation Procedures - For Standard Product1.Install heaters over a cleansurface.2.After installing the unit, begin totighten the clamp screw. Thestandard clamping screw is6.35 mm-508 x 31.75 mm(0.25 in.-20 x 1.25 in.), nickelplated allen head cap screw.Begin tightening the clamp bars.If the clamp bars appear not tohave seated, tap the clamp barswith a small hammer to insure thebars are well seated in the angleformed by the 60 degree bent taband the heater.3.If the bar has multiple screws,alternately tighten the screws at10 lb in. as you would the lug nutson a car wheel to insure evenloading.4.Torque all screws toapproximately 80 lb in. (9-N-M).5.When installing terminal lugs,torque the top nuts to 15-20 lb in.or 2.26 N meters.367