DDL-5550N Series

DDL-5550N Series

DDL-5550N Series

Product catalog summary

Machine Models and Types

The JUKI DDL-5550N series comprises 1-needle lockstitch industrial sewing machines, including models DDL-5550N, DDL-5550NA, DDL-5550NH, and variants equipped with automatic thread trimmers (denoted by the suffix '-7').

Control System and Motor

The series features a newly developed compact control box paired with the SC-920C/M92 servomotor system. The operation panel is customizable to suit specific sewing processes, offering controls such as a maximum sewing speed dial and machine revolution display when used with the SC920 controller.

Production Support Functions

Key automated functions include selectable automatic reverse-feed stitching at the start and end of sewing, double reverse-feed stitching, constant-dimension sewing, rectangular stitching, and multi-layer stitching capabilities. A bobbin thread counter displays stitch counts selectable at 10, 15, or 20 stitches per count, with a maximum count of 9999. Needle position correction (up/down) can be configured by stitch stroke or needle position. Automatic sewing modes allow selection between constant-dimension and rectangular sewing.

Stitching Parameters and Limits

Reverse-feed stitching length is adjustable from 0 to either 15 or 19 stitches depending on the model. Double reverse-feed stitching can be set up to 500 stitches. Parameters for rectangular and multi-layer stitching are configurable within specified stitch count ranges. The number of repetitions for certain stitching functions can be adjusted up to 9 times.

Machine Features and Benefits

The compact servomotor design reduces power consumption and noise while providing enhanced control over stitch length and sewing speed. Automated stitching functions improve production efficiency, and the selectable operation panel enhances usability across different sewing tasks.

Accessories and Optional Components

Compatible operation panels include CP-18A and CP-180A. Models with the '-7' suffix feature an automatic thread trimmer as an optional component.

Operational Notes and Recommendations

It is recommended to adjust stitch length, reverse-feed, and other parameters based on fabric type and sewing requirements. Regular maintenance of the servomotor and control box is advised to maintain optimal performance. Utilizing the bobbin thread counter aids in monitoring thread usage and scheduling maintenance.

Summary of Critical Information

  • Machine Type: 1-needle lockstitch industrial sewing machine.
  • Control System: Compact servomotor with customizable operation panel.
  • Key Functions: Automatic reverse-feed, double reverse-feed, constant-dimension sewing, rectangular stitching, multi-layer stitching.
  • Adjustable Parameters: Stitch length (0-19 stitches), repetition count (up to 9 times), bobbin thread counter (max 9999).
  • Optional Features: Automatic thread trimmer on '-7' models.

Conclusion

The JUKI DDL-5550N series equipped with the SC-920C/M92 control system delivers advanced industrial sewing capabilities emphasizing precision, efficiency, and user customization. The integration of automated stitching functions and a compact servomotor enhances productivity and operational flexibility in industrial sewing applications.

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Catalog excerpts

DDL-5550N Series-1

DDL-5550N DDL-5550N-7(with automatic thread trimmer) 1-needle, Lockstitch Machine Model name Application Max. sewing speed Max. stitch length Needle bar stroke Lift of the presser foot Needle (at the time of delivery) Hook Lubrication Lubricating oil Model name Application Max. sewing speed Max. stitch length Needle bar stroke Lift of the presser foot Needle (at the time of delivery) Hook Lubrication Lubricating oil Automatic reverse feed function Power requirement Power consumption Total weight For medium-weight materials 5,500sti/min* 5mm 30.7mm By hand: 5.5mm, By knee: 13mm DB×1 (#14) For JE: 134 (Nm75) For light-weight materials For heavy-weight materials 4,000sti/min* 4mm 5mm 29mm 35mm By hand: 4mm, By knee: 9mm By hand: 5.5mm, By knee: 13mm DA×1 (#9) DB×1 (#21) For JE: 134 (Nm65) For JE: 134 (Nm130) Automatic-lubricating full-rotary hook Automatic JUKI New Defrix Oil No.1 (equivalent to ISO VG7) For light-weight materials For heavy-weight materials 4,000sti/min* 4mm 5mm 30.7mm 29mm 35mm By hand: 5.5mm, By knee: 13mm By hand: 4mm, By knee: 9mm By hand: 5.5mm, By knee: 13mm DB×1 (#14) DA×1 (#9) DB×1 (#21) For JE: 134 (Nm75) For JE: 134 (Nm65) For JE: 134 (Nm130) Automatic-lubricating full-rotary hook Automatic JUKI New Defrix Oil No.1 (equivalent to ISO VG7) Provided as standard Single-phase 100∼120V, 200∼240V, 3-phase 200∼240V 650VA 81kg * sti/min” “ stands for“Stitches per Minute” WHEN YOU PLACE ORDERS Please note when placing orders, that the model name should be written as follows: Application Code For medium-weight materials For light-weight materials A For heavy-weight materials H ● PSC box Wiper and automatic reverse feed function Wiper Automatic reverse feed function Code Not provided Provided 0B Provided Provided WB Auto-lifter (optional) Code Not provided Provided (AK85) AK For JA (LA)* For JA*, General Export For General Export For EU (CE) For China PSC box Single-phase 3-phase Single-phase Single-phase Single-phase *JA: North America and Central and South America. ● To order, please contact your nearest JUKI distributor. DDL-5550N Series 1-needle, Lockstitch Machine INDUSTRIAL SEWING MACHINE DIV. An environmental management system to promote and conduct the following: (1) Eco-friendly development of products and technologies (2) Green procurement and green purchasing (3) Energy conservation (reduction in carbon-dioxide emissions) (4) Resource saving (reduction of papers purchased, etc.) (5) Reduction and recycling of waste in the activities of research, development, design, sales, distribution, and maintenance services of industrial sewing machines and industrial robots, etc., including sales and maintenance services of data entry systems. 2-11-1, TSURUMAKI, TAMA-SHI, TOKYO 206-8551, JAPAN PHONE : (81) 42-357-2254 FAX : (81) 42-357-2274 http://www.juki.com ✽ Specifications and appearance are subject to change without prior notice for improvement. ✽ Read the instruction manual before putting the machine into service to ensure safety. ✽ This catalogue prints with environment-friendly so

 Open the catalog to page 1
DDL-5550N Series-2

Newly developed lockstitch machine provides upgraded quality and a comfortable production environment that increases efficiency. (With its full array of options, the machine further increases productivity.) Sewing mechanism that demonstrates outstanding responsiveness to materials to be sewn. The thread take-up mechanism, feed mechanism, thread paths and hook have been further improved to enhance responsiveness to material changes and to ensure consistent stitch quality. ● Remaining bobbin thread detector When the amount of remaining bobbin thread reaches the setting, the buzzer will sound to...

 Open the catalog to page 2
DDL-5550N Series-3

Newly developed lockstitch machine provides upgraded quality and a comfortable production environment that increases efficiency. (With its full array of options, the machine further increases productivity.) Sewing mechanism that demonstrates outstanding responsiveness to materials to be sewn. The thread take-up mechanism, feed mechanism, thread paths and hook have been further improved to enhance responsiveness to material changes and to ensure consistent stitch quality. ● Remaining bobbin thread detector When the amount of remaining bobbin thread reaches the setting, the buzzer will sound to...

 Open the catalog to page 3
DDL-5550N Series-4

* JA: North America and Central and South America. • To order, please contact your nearest JUKI distributor. JUKI CORPORATION HEAD OFFICE At wtonnental management system to promote and conduct thefofcwhg: (1) Eco-friendly development of [rodlets and tectinologles (2) freer procurement and green purctiasfrig {3) Energy conservation (reduefcm ki carbon-doidde emissions) (4) Resource savtig {reduction of papers purchased, etc.) (5) Reducttcm and recycteig of waste ki the actMles of research, develcpment, deS^i, sales, dstrfcutbn, and maintenance services of krdustrtal sewkig machkies and kidustrlal...

 Open the catalog to page 4

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.