The Ultrafeed has a needle bar stroke of 1-11/32″ (34mm), twice that of some home sewing machines, and 3/8″ clearance between the raised walking foot and the needle plate, also twice that of a home machine, and can sew almost anything that fits in that space. It can sew multiple layers of heavyweight fabric, leather, or canvas, which is essential when stitching corners where fabric gets folded for overlapping seams or reinforcing layers are added in places such as the corners of sails. We’ve tested the Ultrafeed on 16 layers of canvas, as much as we could fit under the presser foot, and had no trouble sewing it.
Hands-On Review of the Sailrite LSZ-1 Sewing Machine
sewing Archives - Small Boats Magazine
Ultrafeed® Sewing Machine: 10 Features Every Sailor's Sewing Machine Should Have
sail Archives - Small Boats Magazine
sail Archives - Small Boats Magazine
Sailrite Sewing Machines & Project Center
Quick & Easy Cushion Making Tutorial - Best Cushion Making Technique!!!
Tips for Sewing Large or Heavy Sails on the Ultrafeed® LSZ Sewing Machine
The History of the Sailrite Ultrafeed Sewing Machines