Sailrite® Ultrafeed® LS Walking Foot Sewing Machine (110V)
SKU: 311502
Sale $945.00/EA
11 Available


The Ultrafeed LS is a portable heavy-duty straight-stitch sewing machine. The Ultrafeed is extremely versatile. It has the ability to sew incredibly thick, dense assemblies as well as lightweight home fabrics. You can also easily adjust the speed control dial for slow, controlled sewing or faster, production-level output. These features, and many more, make the Ultrafeed the perfect machine for both beginners and seasoned sewers alike.

The body and internal components are all made of robust, high-quality metal, making it a machine that will deliver exceptional results year after year. Assembled and tuned by hand at our Indiana facility, each Ultrafeed must meet rigorous quality standards. Your Ultrafeed is examined and tested by Sailrite-certified sewing technicians before it’s packaged and shipped.

When you buy an Ultrafeed, you get more than just a machine. You’ll receive Sailrite’s unparalleled customer support and constantly expanding instructional videos. Sailrite is a family-owned and -operated company with over 50 years in the DIY industry. Your Ultrafeed makes you part of that family.

Your Ultrafeed Includes:

  • WorkerB® Power Pack Motor System (North American power cord)
  • Ultrafeed® Industrial Carrying Case
  • Posi-Pin® Safety Shear — 4 sacrificial pins
  • Elastic Protector Strap
  • Integrated Thread Stand
  • Integrated Welting Tunnel in standard presser foot
  • WorkerB® Integrated LED Light
  • WorkerB® Balance Wheel
  • EZ Set™ Stitch Length Plate
  • Electronic variable speed foot control
  • Sewing machine oil
  • 4 bobbins
  • 4 - #20 Round/Sharp Point needles
  • Tex 90 hembob thread sample
  • Tool Kit
  • Version 4 internal machine improvements
  • Comprehensive guidebook
  • Five-year limited warranty

Note: This Ultrafeed Sewing Machine is built exclusively for North American power. It is intended to work in the following countries: United States, Canada, Mexico and Japan.

What Can It Sew?

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Heavy Canvas

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Vinyl Fabric

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Upholstery Fabric

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Craft Fabric

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Clear Vinyl

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WorkerB® Power Pack Motor System

The most powerful motor found on portable sewing machines, the WorkerB delivers 2.5 times the power of other portable motors. When the machine encounters resistance from changes in fabric thickness or density, the control box provides a boost in torque to power through. Easily adjust the maximum sewing speed with the dial on the control box. Whether your comfort level is 1 stitch per second precision or 550 stitches per minute, the WorkerB provides maximum power.

Walking Foot Technology

The machine feeds for you; you just have to guide the material. This way, you can focus on what you are sewing. All fabric layers are fed through the machine in one fluid motion, reducing uneven feeding and stitch puckering. The walking foot technology transitions seamlessly over varying material thicknesses, climbing up and down fabric assemblies with ease.

Posi-Pin® Safety Shear

This patented sacrificial pin (Patent #7438009) protects your machine from damage. It is designed to break if your Ultrafeed hits something hard (metal snap or zipper) or binds up, helping to save your machine from potential internal damage. This important machine advancement is only found on Sailrite sewing machines!

EZ Set™ Stitch Length Plate

Easily adjust your stitch length for precise, consistent stitching in both forward and reverse. The lever is spring-loaded for quick and easy back tacking. The Ultrafeed has the longest stitch length of any portable sewing machine on the market.

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WorkerB® Integrated Light

The preinstalled integrated light shines a bright, concentrated beam of light onto the machine’s presser foot so you can clearly and easily see your stitching. And being internal, the light does not get in your way.

Integrated Thread Stand

This thread stand is very easy to install and feeds thread smoothly to the machine with no tangling. It accommodates up to a 16-oz. thread cone and pivots inside the case so you can keep it installed with the case lid on.

Needle Plate Markings

Maintain your seam allowance with markers right on the laser-engraved needle plate. Measurements are marked at 1/4-, 1/2-, 3/4- and 1-inch positions. It’s never been easier to maintain a straight stitch line.


The Ultrafeed provides ultimate portability for on-site repair work and sewing jobs. Our heavy-duty Industrial Carrying Case will protect your machine while you sew on the go.

Thread & Needle Size Range

The Ultrafeed sews thread weights from Tex 30 up to Tex 92 and uses needle sizes #10-#22.

Stitch Types

The machine sews in straight stitch up to 6mm in length.

Sew Piping & Zippers

The presser foot features a built-in welting tunnel for sewing piping. The needle is offset to the right in the presser foot so you can sew most zippers without changing the foot.

Also Included in Package:

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Comprehensive Guidebook

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Tool Kit

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4 bobbins

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Electronic variable speed foot control

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Sewing Machine Oil

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US Power Cord

The Sailrite Promise

High-Quality Construction

Quality begins with the machine’s foundation. The Ultrafeed’s cast iron body houses the all-metal internal components for long-lasting performance.

Assembled in the USA

Each and every Ultrafeed is assembled, fine-tuned and inspected by our highly trained machine technicians at our Indiana facility.

The Sailrite Guarantee

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At Sailrite, we are committed to helping you get the most out of your Ultrafeed Sewing Machine. That’s why we are proud to offer you personalized support for the lifetime of your machine. We’ll be here to help you service your machine with in-depth videos, one-on-one support and Sailrite’s five-year limited warranty (see Warranty PDF below). Should you need them, we have replacement parts in stock and ready to ship out to you and, if all else fails, you can always send your machine back to us for repairs.


Sale Unit: EA
Machine Series: Ultrafeed LS
Sewing Speed: 1 stitch per second up to 550 stitches per minute (with WorkerB Balance Wheel)
Straight Stitch Length: Max. 6mm
Presser Foot Lift: 3/8"
Feed Type: Walking Foot
Shuttle: Oscillating (Cam/Rocker Arm Driven)
Motor Power: 90 VDC, 1/4 hp
Motor RPM: 4,500-5,000
Needle Bar Stroke: 34mm
Lubrication: Manual
Underarm Space: 7" x 4.5"
Bed Size: 14.5" x 7"
Carrying Weight: 54 lbs
Bobbin Size: Class 15 / Style A
Compatible Needles: System 135 x 16, System 135 x 17
Needle Size Range: #10–#22
Thread Size Range: Tex 30-Tex 92
Brand: Sailrite
Thread Take-up Lever: Link Type
Case Dimensions: 21 3/4" W x 10 5/8" D x 14 5/8" H
Input Watts: 375
Output Watts: 350 (Max.)
Amperage: 0.38 (Starting); 3 (Max.)
Input Voltage: 110 VAC, 50/60 Hz
Warranty: 5 Years (Machine); 1 Year (Motor)

Ultrafeed Sewing Machines are assembled in the United States with components from the United States, Taiwan and China.

WARNING: Always plug the WorkerB cord into a grounded outlet and do not use an adapter without a ground pin. We do not recommend the use of long extension cords to plug in the WorkerB Power Pack.

Please Note: The dedicated 110V WorkerB Power Pack is designed to work on an inverter/generator of 500W or more. In the very rare case that an inverter does not allow for smooth operation of the motor it may be necessary to try a different inverter.

A Note About the Integrated Light Outlet: Electrical items exceeding 100 watts should not be used in the control box outlet. Exceeding this limit may blow the control box fuse.

The machine comes with a small pack of #20 Round/Sharp Point needles and a free sample of compatible size Tex 90 thread so you can test out and get to know your machine. Please choose a package when ordering the machine for a more complete needle and thread offering as well as popular machine attachments and accessories.


What Is the Ultrafeed®?

WorkerB® Power Pack Sewing Demo

How to Choose Between the Ultrafeed® LS or LSZ Sewing Machine

Upgrade Your Ultrafeed® With Must-Have Accessories

Sailrite® WorkerB® Power Pack: A Step Above the Sewing Machine Speed Reducer

Locating Important Manuals & Guides in Your Ultrafeed® Package


We're located in Indiana and would be happy to answer your calls Monday-Friday, 8am-5pm EST.

LOCAL: (260) 244-4647 | TOLL FREE: (800) 348-2769