Hightex #7273CNC/X Programmable webbing sewing machine for extremely thick thread.
Testing with custom made extremely thick thread (heavier than 1500Dx3).
This machine is ideal for sewing heavy Duty Straps / Slings made of Nylon, Polyester, & Polypropylene, Webbing, Vinyl, Canvas and Leather.
http://www.cowboysew.com/product7.htm