Dürkopp Adler
939
Challenging zigzag operations with adjustable differential bottom feed
Product features
For the processing of elastic materials and for collar construction.
The 939U machine class is available in the Classic configuration, combining robust mechanics with exceptional reliability. Stitch length and stitch width are conveniently adjusted via a mechanical control wheel – precise, simple, and intuitive.
By precisely adjusting the differential bottom feed, the lower fabric can be stretched or gathered (also allowing for the incorporation of fullness).
Equipped with an electro-pneumatic thread trimmer, pneumatic presser foot lift, and automatic seam locking, the machine offers maximum comfort and efficiency in operation.
Powered by the DACclassic drive package, it ensures consistent performance and outstanding stitch quality.
Thanks to the U configuration, operators can easily switch between 1-step and 6-step zigzag modes – providing maximum flexibility and a wide range of sewing applications.
Examples of use
Specifications
| Model | 939U-140342 |
|---|---|
| Bottom feed | ● |
| Clearance when lifting [mm] max. | 7 mm |
| Differential bottom feed | ● |
| Horizontal hook, small (S, Ø 22mm) | ● |
| Needle system [Nm max.] * depending on the sewing equipment | 438 |
| Nominal voltage [V], [Hz] | 230V, 50 / 60 Hz |
| Seam backtacking, thread trimming and sewing foot lift, automatic [mm] max. | ● |
| Sewing foot lift, automatic | ● |
| Stitch length [mm] max. | 4,5 mm |
| Stitches/min. max. *= depending on foot stroke **= depending on foot stroke and stitch length *** = in case of twin needle / three needle version less speed possible – dependent on needle distance ****= selectable per step *****= depending on the use of the stitch loosening device ******= max. 2,500 stitches in combination with conversion kit “Heavy” *******= The sewing speed depends on the type of cam used | 4.500 |
| Switching device for 1- and 6-stitch zigzag | ● |
| Thread trimmer, automatic | ● |
| Throw width [mm] | 6 mm |
| Zigzag double chain stitch (308) | ● |
| Zigzag double lockstitch (304) | ● |
● Standard ○ Optional
Catalogue
The 939 documents Dürkopp Adler publishes, on their own site. They open in a new tab.
Open the catalogue (PDF)Open the instruction manual (PDF)Open the parts book (PDF)
And the catalogues Dürkopp Adler publishes for their whole range.
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Data sheets, photos, videos and specifications: Dürkopp Adler.
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