I want to replace the standard cast iron impeller with a stainless steel one, but the manufacturer says they don’t have the molds
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We are now planning to purchase several pumps. Initially, cast-iron impellers were intended to be used, but since the user mentioned that the water quality is somewhat acidic, they requested stainless-steel impellers. However, the manufacturer said that they do not have molds for stainless-steel impellers. I’m not very familiar with this area. There are already molds available for manufacturing cast iron impellers – can’t those same molds be used to produce stainless steel impellers? Please explain it to someone who understands, thank you!
The thickness and flexibility of the impeller vary. The problem is the small amount – I don’t want to do it!
The casting temperature issues for stainless steel compared to carbon steel and cast iron. The key issue is that finding a manufacturer producing such a product is the right choice. To ask an iron smelting plant to produce stainless steel – the difference is simply too huge. It’s better to find a place that can make things.
This pump manufacturer doesn’t want to manufacture it for you; choose another manufacturer instead. These days, the impellers for pumps are usually cast by external contractors, and no pump manufacturer has stainless steel impellers – where did you find such a strange company?
It means the amount of money provided isn’t enough; there’s nothing that can’t be done. It’s not easy for manufacturers, so please don’t be too strict. It’s because owners or design firms drive down prices to win bids, which makes it difficult for many pump manufacturers to survive
If you give enough money, you can even build airplanes and guns:victory::victory:
It was said that it’s not possible to use the original mold for casting. That’s correct; the shrinkage rates of cast iron, cast steel, and stainless steel are different. It shows that the manufacturer is quite responsible; you should feel fortunate.
Okay, thank you. I really don’t know about this. Previously, some small pumps used stainless steel impellers; this time I need to order several large pumps, and the manufacturer said that for some of the models, there are no molds for stainless steel impellers – and it happens that the model I need is one of those without such molds.
It’s also a big company, haha. I’m a bit speechless too