Good afternoon, I would be interested to know why you need a soap slicer. If you have a production, it's best to order a professional model for $800 from Amazon. I always order my soap from https://mildsoaps.com/parabens-free/, and I know that they manually cut their soap, which is why it is even more valuable than cutting by machine. You can also use a thread for this, as when creating hand candles, I hope that my comment will help you. I wish you good luck.