There are many criteria to consider when choosing a heavy duty sewing machine. We will start with the beginning and make it a lot easier for you.
In addition to size and type, the material of the needle is also important to consider

needles for upholstery sewing. Needles for upholstery sewing are typically made of hardened steel to withstand the rigors of sewing through tough materials. It's important to choose a needle that is durable and long-lasting to ensure smooth and consistent stitching.
Before you start sewing with faux leather and your new leather needle, there are a few tips to keep in mind to ensure a successful outcome. First, be sure to use a longer stitch length than you would with regular fabric to prevent the material from tearing or getting stuck in the needle. Additionally, consider using a walking foot attachment on your sewing machine to help feed the faux leather smoothly through the machine without stretching or distorting the fabric.