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TRANSMISSION
CENTRIFUGALS FANS
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SA fans are single inlet centrifugal fans equipped with forward curved blade.

The range comprises 9 different sizes available in two versions according to the rotation of the impeller.

The name of the range is RTC. The fans are equipped with a rectangular shaped side structure, built in “L” profiles which strengthen the unit forming and giving a reduced volume for the structure.
   
SA fans have forward curved centrifugal impellers, tablocked on both sides to two steel rings and to a double disk at the centre.

The blade is designed to minimize the loss caused by air turbulence and to obtain maximum efficiency with minimum sound level.

All impellers are dynamically balanced. The housings, in galvanized steel, are formed by two side plates spot-welded to a central scroll.

A cut-off mounted on to the discharge prevents turbulence.

The side plates have an aerodynamic profile and include some drill holes to allow fixing of the base supports as well as the motor support.

Four positions can be selected for the base support and eight for the motor support.

The ball bearings are mounted on rubber inserts to reduce vubration except for the framed versions which are filled with cast ball bearing housings.

Operating temperature -30°C to + 85°C. The “R” series fans are based on standard “N” fans equipped with rectangular side structures built with “L” profiles which reinforce the unit, forming a rigid cube structure.

This frame is welded to the sides of the fan. A number of groove-shaped drills on the strenghthening frame corners allow for a proper fixation.
 
 
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The SAP range of belt-drive, single inlet forward curved centrifugal fan-deck assemblies consists of 9 nominal model sizes.
   
Fan Scroll

The fan scrolls encasing the centrifugal impellers are manufactured from high grade galvanised sheet steel.

The scrolls consist of two pressed side parts with an electro-welded rolled shell. The SAP series are manufactured as standard with an “L” shape profiled galvanised steel support frame.

This support frame is welded to the sides of the fan scroll to reinforce the unit forming a rigid structure.

This fan support frame in turn is welded to a heavy gauge profiled base frame on which the motor is mounted with a belttension adjustment plate.

The base frame also includes a number of elongated fixing holes to facilitate mounting the complete assembly.

Ball Bearings

Models 9/4 up to 18/18 include high quality ball bearings mounted on rubber inserts to reduce vibration.

Larger models 20/10 up to 30/14 include high quality ball bearings with die cast bearing housings for strength and durability.

The SAP range are available in 9 model sizes and two construction variations dependant upon the rotation of the impeller- please enquire.
 
 
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