Difficult operation made easy! The topstitching of the left fly in men's trousers is always a challenge. Creating a smooth, distortion-free and parallel single or double seam is manuall possible only with a lot of experience and practice. Quite simply, it goes with the sewing units 1911 / 1931. In order to meet the highest quality standards, the operating personnel can be trained in the shortest possible time.
1911 / 1931 | Flexible sewing units for topstitching the trousers flies
Highest efficiency paired with top quality
Your benefits at a glance
1931: Use for single seam or parallel double seam1911: Use for single seamSpecial compensation clampProgrammable stitch lengths for all seam sections allow optically equal stitch lengthsLifting mechanism for metal and plastic zipper slider for safe material feedAutomatic seam length adaptation to different sizesCustomer-specific fly seam contours and topstitching widths1931: Processing of trousers with fixed length and endless zipperFour topstitching widths flexibly availableBundle clamp with rack table
1931
The 1931-7 offers a higher flexibility. It can be used for topstitching the fly piece alternatively with one seam or with two parallel seams. Additionally trousers with fixed length and endless zipper can be topstitched. Thus, this sewing unit is, depending on the equipment, not only usable for the production of classic trousers but also for the manufacture of Dockers, Chinos etc.
Standard seam distances: 3.2 mm, 4.8 mm and 6.4 mm; topstitching widths from 28.0 to 46.4 mm can be realized.
1911
The 1911-7 is especially adapted for the production of classic trousers and suitable for the usage of endless zipper. It enables the precise topstitching with one seam. Four various topstitching widths from 28.0 to 40.0 mm can be realized as single seam.
Special compensation clamp
Special compensation clamp for different fabric thicknesses in the waistband area.
Programmable stitch lengths for all seam sections allow optically equal stitch lengths
Lifting mechanism for metal and plastic zipper slider for safe material feed
Automatic seam length adaptation to different sizes
Customer-specific fly seam contours and topstitching widths
Working method 1931-7: Classic trousers with endless zipper and double seam (1911 590054) – Just like the 1911-7, the trousers are placed with the waistband edge at a fixed point. The seam length is adjusted automatically via the photocell. This ensures that the seam ends exactly below the waistband edge, regardless of the garment size. In addition, a double seam can be sewn with seam widths of 3.2 mm / 4.8 mm / 6.4 mm.
Working method 1931-7: Casual trousers with cut-tolength zipper and double seam (1911 590064) – Trousers with cut-to-length metal zips as well as plastic zips with zip slider can be processed. The trousers are topstitched before the waistband is attached. With this processing method, the seam beginning is controlled by a fixed positioning point and the seam end is managed by a photocell.
Sewing unit 1911-7:
Four different topstitching widths from 28.0 to 40.0 mm can be realized as single seam.
Sewing unit 1931-7:
Flexible use due to single or parallel double seam - standard seam distance for double seam: 6.4 mm. Flexibly exchangeable contour rollers as spacers for double seams for distances: 3.2 mm / 4.8 mm / 6.4 mm. Various topstitching widths from 28.0 to 46.4 mm can be realized.
Bundle clamp with rack table
Examples of use
Performance examples 1911Performance examples 1931Application with metal zipper
Performance examples 1911
2,500 – 3,000 pressed fly pieces (single seam) / 480’
Performance examples 1931
2,500 – 3,000 pressed fly pieces (single seam) / 480’
Processing of endless zipper:
Approx. 2.500 – 3.000 fly pieces (single seam) / 480’
Approx. 1.400 – 1.600 fly pieces (double seam) / 480’
Processing of fixed length zipper:
2,300 – 2,800 pressed fly pieces (single seam) / 480’
1,200 – 1,400 pressed fly pieces (double seam) / 480’
Metal zippers
1931-7 – Processing of cut-to-length zippers (option 1911 590064):
The modified construction enables processing of trousers with cut-to-length metal/plastic zippers. Seam distances of double seams from 2.4 to 6.4 mm can also be realized.
Technical specifications
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Stitch length1,0 - 5,0
1,0 - 5,0
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Stitches/min.5.000
5.000
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Stitches/Min. (ex works)4.200
4.200
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Sewing MaterialL / LM / M
L / LM / M
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Sewing sector280,345**
280,345**
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Sewing width28,0-40,0
28,0-46,4
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Seam distance-
3,2
/
4,8
/
6,4
Single needle
Lockstitch (301)
Horizontal hook, small (S, Ø 22mm)
Thread trimmer
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Seam backtacking A
A
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Stitch condensing, automaticNeedle thread monitor
Bobbin thread monitor
Reflecting light barrier for automatic sewing start at fabric beginning
Adjustable table height
890-1250
890-1250
Bundle clamp
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Program controlinfo
Air requirement per stroke / Air pressure16
/
6
16
/
6
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Needle system134 SERV 7
134 SERV 7
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Needle size80-120
80-120
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Dimensions (Length, Width, Height)1.750
/
1.450
/
1.700
1.750
/
1.450
/
1.700
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Nominal voltage1x230V, 50/60 Hz
1x230V, 50/60 Hz
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Power consumption
1.0
1.0
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Weight, complete200
200
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Synthetic30/3
30/3
Standard
Optional