Semi Industrial Walking Foot Zig Zag Machine

Sailrite Ultrafeed LSZ-1 Premium
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Model - Sailrite Ultrafeed LSZ-1 Premium


Voltage: 220-240V

Max Sewing Speed: 500 Stitches per minute

Max Straight Stitch: 6mm

Max Zig Zag Stitch: 5mm

Case Dimensions: 21 3/4 " W x 10 5/8" D X 14 5/8" H

Carrying Weight: 28kg

The Sailrite Ultrafeed LSZ-1 PREMIUM (220–240V/50 Hz) Sewing Machine package features our powerful, portable, straight stitch/zigzag walking foot sewing machine loaded up with all of our best accessories. This package is perfect for someone who needs an easily portable, heavy-duty machine, for boat owners looking to sew heavy canvas or sails, or for the sewer who wants all the bells and whistles. 

The Ultrafeed LSZ-1 Sewing Machine excels in performance and versatility, sewing in both straight and zigzag stitches. Built with the toughest, most reliable parts, the Ultrafeed is designed to make sewing through heavy materials like sailcloth, heavy canvas, denim, and upholstery fabrics easy (tried and true in up to 10 layers of heavy canvas and 8 layers of Dacron sailcloth).


With the Ultrafeed Premium Package you not only get the standard Power Plus Balance Wheel, but also the extra large, extra powerful Monster II Balance Wheel. The Monster II is a solid 7 lb. nickel-plated steel balance wheel with twice the size and power of a traditional balance wheel. It also comes with a hand crank and creates enough momentum to sew even heavy fabrics without electricity. Powering the machine is a 220–240 VAC motor (10,400 rpm at 0.7 amps) and a cogged belt and pulley drive system. Operate using the fully grounded, variable speed, electronic foot control with a 2-pin European plug.


Sailrite’s patented Posi-Pin (#7438009) Clutching System provides 100% power transfer from the balance wheel to the needle. This unique system keeps the clutch from slipping while sewing heavy, hard to penetrate fabrics.


An extra wide (19mm) zigzag mechanical walking presser foot works with the feed dog to pull thick layers of fabric through the machine at consistent speeds for symmetrical stitching. The EZ Set Stitch Length Plate helps to keep stitch length consistent when switching from forward to reverse. Switching directions is made quick and easy by the spring loaded stitch length lever.

The presser foot features a built-in welting tunnel for sewing piping and a needle positioning lever moves the needle left, right and center so you can sew marine zippers without changing the foot. For those times when you need the needle even closer to what you are sewing, this package includes a left roping zipper foot.


The Ultrafeed is built to be tough enough to go wherever you go. Move it around your home, or take it in your boat or RV! The heavy-duty Industrial Carrying Case is a durable, reinforced carrying case that protects your machine so you can sew and store it anywhere. The Integrated Thread Stand attaches directly to the case’s base and swivels for convenient use and quick storage.

Included with the Industrial Carrying Case is our Elastic Protector Strap. This courtesy add-on helps to protect delicate fabrics and clear vinyl from snagging or scratching on the latches of the case. The strap snaps directly onto the case via pre-install snaps.


The Ultrafeed features a 3/8” high foot lift and a best-in-class needle bar stroke, so you can sew virtually anything you can squeeze underneath the foot. The Ultrafeed sews thinner assemblies, too, and can be easily adjusted to sew lighter weight home decor fabric so it can be your go-to machine for numerous projects. Set the variable stitch length up to 6 mm in straight stitch and up to 5 mm in zigzag width and you’re ready to go. The Ultrafeed will easily sew through fabrics like:

  • Heavy canvas
  • Sailcloth
  • Upholstery fabrics
  • Denim
  • Vinyl
  • Window material
  • Soft leather
  • Drapery material
  • And more!

If you will be sewing larger sails for boats up to 35 feet, you’ll need to apply a few special settings to your Utlrafeed LSZ-1 to avoid needle breaks. We recommend using V-92 polyester thread for your sails and using a #22 SD1 needle when sewing corner patches. Be sure to also increase your upper tension and sew slowly. 


  • Industrial Carrying Case
  • Integrated Thread Stand
  • Sailrite Flex20 LED Light
  • Monster II Balance Wheel
  • 1” Swing Away Binder
  • EZ Set Stitch Length Plate
  • Deluxe Magnetic Sewing Guide
  • Kickstand
  • Left Roping Zipper Foot
  • Cording Foot Set for Large Welting
  • Needle Assortment Pack with Deluxe Seam Ripper & Lint Brush
  • Power Plus balance wheel
  • Electronic variable speed foot control
  • V-92 White Polyester Thread 1 oz.
  • Sewing machine oil
  • 4 bobbins
  • Tool Kit
  • Comprehensive guidebook
  • Ultrafeed Set-up, Use & Maintenance DVD