PARAMAX® SFC Series Reducer for Cooling Towers
Right Angle Shaft Reducer for Cooling Tower Fans
- Optimized explicitly for running cooling tower fans.
- No protrusions on the mounting surface, which makes transporting and mounting easy.
- Engineered with heat dissipation in mind, to maintain optimal temperature for the reducer in the vicinity of the cooling tower fan, where airflow is minimal.
- Uses a 25° gear pressure angle for high dedendum strength. Reducer with high load capacity, capable of withstanding strong impact loads.
- Capable of a year of continuous operation.
| Output Shaft | Solid shaft |
| Output Shaft Direction(s) | Vertical upward, Vertical downward |
| Mounting Style | Case mount |
| Frame Size | 7 sizes |
| Reduction Ratio | 6.3:1 - 22.4:1 |
| Rated Torque | Up to 389,432 lb-in (44,000 N⋅m) |
Product Features
The mounting surface is aligned evenly against the cooling fan drive surface for uniform load transfer during operation.
This remains true even when the optional backstop and oil pump are attached.
A connecting pipe enables venting and supply/drain of oil from outside the fan assembly.
The inspection cover is located above the oil level, allowing easy inspection while mounted without having to drain the oil.
I have an application over 50hp that I want a direct drive for, do you have an option?
Yes, we have our Paramax which offers many ratios, right angle or offset parallel, many mounting options, many different output types, etc. Let us discuss further by contacting your Sumitomo rep!
I don’t like the turnbuckle torque arms and sometimes have reversing applications they don’t work well for, do you have another option?
Yes, we have 6 different torque arm options to make your installation easy.
What if I need to change the backstop rotation?
No problem, your Sumitomo rep can assist with that, we can instruct you how, or you can send it to us to do.
Can I adjust the speed with a direct drive like I can with a belt drive?
Not by changing a sheave size since that component is eliminated, but there are things to consider…
- How often are you really changing the speed?
- The flexibility of changing a sheave size also puts your system at risk. Are you overspeeding beyond the reducer's capabilities? Are you slowing down too much and causing the backstop spragues to drag and wear?
If you are utilizing a VFD, that can control your speed.
- If you find out you truly need to change your speed, our BBB is the only direct drive on the market that has a Cyclo cartridge that could be changed to change your overall speed eliminating the need for a whole new reducer. Work with your Sumitomo rep to consider this.
I don’t have a very long shaft, can I still replace a belt drive with a direct drive?
Yes, if our standard Taper Grip Bushing requires more shaft than you have, we have a new Taper Grip Bushing option that needs an average of ½ the shaft length. When we size up the reducer you need, we can tell you how much shaft length you need for both options.
What should be some features or upgrades I should consider for the Aggregate, Sand and Cement industries?
Taconite Seals, Severe Duty or Desiccant Breather
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