There is a machine that does bias strips, but it's $100. I would
love to buy it, but the price is just too much for the amount of quilting I do.
I do have the small ones that you put the fabric in one end and it comes out the other the way bias binding looks, and you just follow it with the iron. I use those, they work very, very well, and they are not expensive. You can also buy them in different sizes. Whatever size you use for your binding, you can get one that will work for you.