Some of the industrial machines have a heavier shaft for the needle and a faster motor. Some have special uses. An industrial machine with a walking foot will not do much more than sew heavy fabric. Unless you are sewing tarps for semi trucks, I am betting that machine will be fine. If you are just sewing upholstery weight material to cover a car seat it should be fine. You can try a walking foot attachment. It may do fine as long as it will raise far enough for the material to go through. Since bobbin cases are relatively inexpensive just buy one to adjust for thicker thread and one for regular thread. Then all that has to be adjusted is the upper tension. If that machine doesn't work industrial walking foot machines are not terribly hard to find or terribly expensive. The prices of them have dropped to about half what they were 10 years ago or less for a used one. Probably $500 or so for sure - less if you are lucky.