Product features
Designed with an extended cutting system and THREE FEED DOGS for superior fabric handling, the 72 Class machines have become a favorite for Knit goods and a variety of non-woven processes. The 72-D3B-2 Series sews an identical stitch to the 70-D3B-2 but improves dramatically the reliability of sewing difficult fabrics.
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The Merrow 72-D3B-2 industrial sewing machine is designed to sew a consistent and flat butted seam on knit fabric. Specifically suited for tubular knits, the 72-D3B-2 can also be configured to sew a wide range of textiles.
Like all 72-Class Merrow machines, it incorporates an extended feed system and specially designed cutters that allow the consistent movement of sewn material across the cutting surface.
The 72-D3B-2 is hand assembled using high quality steel parts within the traditional Merrow cast iron frame, ensuring a perfect butted seam even after years of use.
WHY it's better
The 72-D3B-2 has been designed to improve on the 70-D3B-2 handling and cutting of fabrics. It represents an improvement on many mechanical areas of the 70-D3B-2 while still creating the same 16MM (5/8") stitch at 2250RPM. Significantly, the 72 Class machines will allow a 16MM (5/8") stitch on most knits.
HOW it's better
The 72-D3B-2 is significantly different from the 70-D3B-2.
WHERE it's used
The 72-D3B-2 is far better than the 70-D3B-2 sewing knits, and can be used in almost all operations where you would use the 70-D3B-2. These include:Continuous Bleaching, Mercerising, Scouring, Washing, Drying, Pad & Steam Dyeing, Printing, Steaming, Shrinking (Sanforizing), Finishing, Tubular Processing, Slitting & De-twisting, Heat Setting, Napping & Shearing, Singeing, Calendering. It will be mounted on a table and requires a 1/2HP motor or Merrow Air Motor.
Applications
Butted Seam for Tubular Knits
Butted Seam for Jersey Knit
Butted Seam for Polyester Fleece
Butted Seam for Stretch Nylon
Butted Seam for Tricot
Stitch samples

Specifications
| Operating speed | 2250 RPM |
|---|---|
| Stitch width | 16MM (5/8") |
| Stitch range | 101MM - 305MM (4-12 SPI) |
| Standard needle | MERROW 8SDT |
| Merrow needle range | MERROW 3SDT - 8SDT |
| Federal stitch type | 501 |
| Motor required | 1725 RPM, 60 Hz, 1/2 HP, 110 or 220 volts, 1 or 3 phase |
| Number of threads | SINGLE THREAD |
Catalogue
The 72-D3B-2 documents Merrow publishes, on their own site. They open in a new tab.
Open the catalogue · 72-D3B-2 Line Card (PDF)Open the catalogue · Continuous Processing Lineup Card (PDF)
And the catalogues Merrow publishes for their whole range.
The file is published and updated by the manufacturer; it is not copied here, so nobody downloads an outdated version.
Data sheets, photos, videos and specifications: Merrow.
Other models · 12/70/71/72 Class
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