Originally Posted by
kt53sews
Depending on your location I would check with an industrial dealer. I used to have a Singer 31-15 and it would sew the heavy stuff. My "old" Viking 6440 can sew those things, I put in motorcycle jacket zippers with that machine for years. They are hard to find. Wish I could find one that some one has used lightly over the years, I would scoop it up. Unfortunately they leave them site and they get all locked up. When you do find one be aware they do go fast and they sew after you take your foot off the pedal. You might look for a Brother Walking Foot machine. That would suit your purpose too.
You're right- those 6000 series vikings are fantastic and powerful for a domestic machine. Put 'er in low and go! I have 4 at the moment, with one to go away this week. All have been gone through and work as new, and appear almost new. I buy all the good ones I can find and refurb for sale. You just can't get machines like this anymore.