COATING: |
CHROME  Needles with a normal chrome coating can be recognized by their shiny silver surface. The chrome coating provides protection against wear and corrosion. The surface is smooth and protects the material and the thread. Chrome needles can be used for all standard applications. Compared to nickel-plated needles, chrome-plated needles improve the service life of the needle at higher stitch counts. At Groz-Beckert, the equivalent chrome coating is being gradually replaced by their more environmentally friendly "dur" process.
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SPECIAL: |
KK
Short Piston
The shorter piston of the KK variant is used in industrial sewing machines (often overlock, coverstitch, or specialized leather and buttonhole machines) where space on the needle bar is very limited. The shortened piston end allows for additional fabric thickness during the stroke in some machine classes.
Since the distance from the piston end to the needle eye is identical in both variants, a 134 KK can be used in many standard machines instead of a regular 134. However, it usually doesn’t work the other way around: If you insert a standard size 134 needle into a pure “KK machine” , the piston—which is too long—hits the top of the needle bar, causing the needle eye to sit too deep and resulting in skipped stitches or a broken needle.
DBxK5 with special geometry for multi-head embroidery machines
Demanding embroidery processes require the use of special needle geometries. Conventional needle geometries often do not meet the requirements, for example when processing sequins, in 3-D embroidery technique, with frequent changes in needle thickness, or when using thick embroidery threads.
For these applications, SCHMETZ offers a range of special geometries for the «DBxK5» needle system for multi-head embroidery machines.
These include the following needle types:
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DBxK5 KK (short butt)
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DBxK5 KK SERV 2 (short butt and shoulder flat)
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DBxK5 SERV 6 (special hollow groove and reinforced shaft)
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DBxK5 SERV 8 (extremely reinforced needle shaft)
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DBxK5 FHS (novel embroidery technique for extremely different needle thicknesses within one embroidery head)
You can find more information here:
SCHMETZ (Industrie) special needles for multi-head embroidery machines (PDF, 379KB) |
