Sewtech 144pcs Size L Prewound Bobbins — White 70D/2 60WT Polyester Thread, Clear Plastic SA155 Bobbins for Commercial/Home Embroidery & Sewing Machines
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Descrição
One box. 144 ready bobbin changes.
Keep Every Embroidery Job Moving
Sewtech Size L prewound bobbins give busy embroidery rooms a convenient supply of white 70D/2 (60WT) polyester thread—precisely wound, neatly packed, and ready for compatible Size L / SA155 machines.
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Ready When the Next Design Starts
Manual bobbin winding adds another step between you and a finished order. With 144 prewound bobbins on hand, you can replace an empty bobbin and return to stitching quickly. The bulk format is a practical choice for embroidery businesses, customization studios, classrooms, and dedicated home workrooms using the correct bobbin size.
Production-friendly quantity: A 144-count box helps reduce frequent reordering and keeps backup bobbins close to the machine.
Consistent machine winding: Uniform, tightly packed layers support a steady release of thread through changing stitch directions and speeds.
Clear plastic construction: Transparent sides make the bobbins easy to identify and organize while resisting oil absorption and flange distortion.
Versatile white thread: A useful everyday choice for light fabrics, lettering, monograms, patches, apparel, and general sewing.
Fine Bobbin Thread for a Clean Foundation
The white 70D/2 (60WT) polyester thread provides a fine, soft-feel foundation beneath the decorative top thread. Its cottonized hand makes it well suited to garments and projects worn close to the skin, while the lighter weight supports detailed fills, satin stitching, small lettering, and decorative motifs without adding unnecessary bulk.
Predictable Feed Starts with Even Winding
Inconsistent self-winding can create loose areas or uneven tension between layers. Sewtech prewound bobbins are prepared with controlled winding equipment for compact, even layers that support smoother thread delivery from the beginning of the bobbin to the end.
Confirm Size L Before Purchasing
This is a Size L / Style L / SA155 product. It is shorter than a Size A / Class 15 / SA156 bobbin. Bobbin sizes are not universally interchangeable, so check the machine manual and compare the original bobbin dimensions before placing your order.
Product Details
| Product Code | PB-W70-144L |
|---|---|
| Pack Quantity | 144 prewound bobbins |
| Bobbin Format | Size L / Style L / SA155 |
| Approximate Size | 20.5 mm diameter × 8.9 mm high (0.81 × 0.35 in) |
| Thread Specification | 70D/2 polyester, 60WT |
| Thread Color | White |
| Bobbin Material | Clear plastic sides |
| Recommended Application | Compatible embroidery and sewing machines |
A Practical Supply for Repeat Work
The organized 144-piece box keeps bobbins together and protected between jobs. Whether you are preparing repeat logo orders or working through a large personal project, a full supply helps prevent the workflow from stopping because the next bobbin has not been wound.
Compatible Machines
Size L bobbins are commonly found in commercial multi-needle embroidery workflows and in selected home embroidery or sewing machines. Potentially compatible brands include Brother, Ricoma, Happy, Tajima, BAI, ZSK, Melco, Barudan, and SWF—but compatibility depends on the exact model, bobbin case, and manufacturer specification.
Best practice: Confirm that the machine manual or original bobbin identifies Size L, Style L, or SA155. Do not select a bobbin based on brand name alone.
A Steady Base for Detailed Embroidery
From compact lettering to dense decorative shapes, the bobbin thread supports every top-thread color from underneath. Reliable bobbin preparation lets the finished design—not the setup process—remain the focus.
FAQ
What is included in the package?
One box containing 144 white, plastic-sided Size L prewound bobbins.
Is SA155 the same as SA156?
No. This SA155 / Size L bobbin is shorter. SA156 generally refers to the taller Size A / Class 15 format. Use only the size specified for your machine.
Can these be used in a home embroidery machine?
They can be used in selected home machines that specifically require Size L or SA155. They should not be used in a machine that calls for Size A, Class 15, or SA156.
What kind of thread is included?
The bobbins are wound with white 70D/2, 60WT polyester bobbin thread with a soft, cottonized feel.
Ready Bobbins for the Work Ahead
Add a 144-count Sewtech supply to your embroidery station and make every compatible bobbin change quick and straightforward.
