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Cantilevered load reaction is passed through additional bearings, and housing to beam base bottom to RCC platform. So gearbox is not at all affected by overhung load. So life of the gearbox is increased. |
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Cantilevered load reaction is passed through gearbox Output shaft to bearing, to gears, to body, to studs support to platform. Hence more vibration and more Maintenance of the gearbox. |
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Floor/base support area is 100 times more, so possibility of vibrations is reduced accordingly. |
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Floor support area is too less so more possibility of vibrations. |
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Due to conical Impeller and Solid MS shaft, CG lies nearer to center, so less impact loading. |
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Center of Gravity (CG) of the system (cantilevered impeller) lies in the periphery, hence more impact loading. |
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These unbalanced cantilevered loads are NOT passed to the gearbox, but those loads are taken by TWO EXTRA bearings and housing. So life of the Gearbox is increased. |
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Unknown, heavy, cantilevered, unbalanced loads are directly taken by the gearbox output shaft, bearings and gearbox itself. So life of the Gearbox is reduced. |
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Heavy Beam BASE is used so vibrations are lessened and again the base is machined on the TOP surface so the life of the Gearbox is increased. |
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Since there is NO BASE, heavy vibrations are expected, which will reduce the life of the Gearbox. |
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Since shaft is fully machined, NO possibility of VOUBLING of shaft concentric running of impeller is ensured. |
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Since Tubular shaft is used, there is a possibility of VOUBLING of shaft. |
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Since Horizontal foot mounted motor is used, the conditions are not severe as those of flange mounted motor. |
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Since the motor is Flange mounted, it becomes Special (non standard) and probability of another Motor in STOCK is very less. So in case of flange mounted if motor got burned, the Aerator remains STOPPED till the motor is rewinded. |
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Spares of the worm gearbox are easily available at comparatively lower cost. |
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Spares of the helical gearbox are not easily available & their cost are comparatively higher. |
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Wetted Parts are FRP Lined. |
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Wetted Parts are Epoxy Painted. |
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Specially designed Impeller is offered for HIGHER WATER DEPTH upto 4.5 to 5.0 mtrs. Aeration Tanks. (Less area for Aeration Tank is required, so saving in space.) |
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Only one design without the consideration of higher water depths. |
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UNDER OUR QUALITY ASSURANCE PLAN each & every Aerator is Ranned for 2 hours in our INHOUSE HYDRAULIC TESTING FACILITY before despatch. |
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No testing activity is carried out. |
