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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 (worldwide use with North American and European power cords)
- 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 equipped with Full Voltage. Full Voltage is recommended for international customers and for transient DIYers. Included are two power cords: one for a North American outlet and one for a European outlet. If you do not live on these continents, you will need to obtain a power cord or adapter that’s compatible with your plug style.
If you plan on using the Ultrafeed with an inverter/generator, please read the note at the bottom of the page below the Specifications column regarding inverter voltage compatibility.
What Can It Sew?
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.
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.
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:
Electronic variable speed foot control
Sewing Machine Oil
US and EU Power Cord
The Sailrite Promise
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
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.
|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|
|Needle Bar Stroke:||34mm|
|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|
|Thread Take-up Lever:||Link Type|
|Case Dimensions:||21 3/4" W x 10 5/8" D x 14 5/8" H|
|Output Watts:||350 (Max.)|
|Amperage:||0.38 (Starting); 3 (Max.)|
|Input Voltage:||100-230 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 100-230V WorkerB Power Pack may work on an inverter/generator of 600W or more of the Modified Sine Wave or Square Wave types. Pure (or Digital Synthesized Wave) inverters/generators will disrupt the “phase cutting” technology of the WorkerB since they hide high-frequency current in the waveform. Although the 100-230V WorkerB will work on 100-230V household power, it will only work with some inverters/generators with an output of 100-120V. Inverters with an output of 220/230V will never work. This means there are very limited inverter options for use with this particular WorkerB Power Pack. If usage via an inverter is a key requirement, Sailrite recommends purchasing a 110V WorkerB machine/system and running from any 500W or better inverter with a 100-120V output.
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.
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