DDL-900C Direct-drive lockstitch sewing machine

Direct-drive, high-speed, sewing system with automatic thread trimmer

Commitment to “seam quality” is poised to enter a new era with JUKI’s next-generation sewing system. The change is driven by digitalization. Until recently, sewing machines have been adjusted by human operators based on personal hunches and experience.

Now, with JUKI's digital sewing system DDL-9000C, sewing machine adjustments are fully digitalized. The settings can be reproduced with total accuracy to perfectly suit the materials being sewn.

Vertically- and horizontally-driven digital feed mechanism

Thanks to the world's first vertically-driven digital feed mechanism, the feed dog height can be adjusted with ease according to the material fabric of the product to be sewn, thereby improving seam quality. Thanks to this digital feed mechanism, thread trimming is carried out with the feed dog lowered in the case that the shorter-thread remaining thread trimming function is enabled.

As a result, the clearance provided between the throat plate and the material is eliminated, thereby stabilizing the length of thread remaining after thread trimming.

The feed dog does not protrude the top surface of the throat plate when the sewing machine stops with its needle bar up, thereby facilitating placement/removal of the material on/from the top surface of the throat plate and preventing the material from being damaged by the feed dog.

Various kinds of feed loci can be selected.

Digitalized vertically- and horizontally-driven feed mechanism allows easy adjustment of settings such as the feed locus only on the operation panel according to the material to be sewn.

Digital functions that accentuate excellent \"seam\" quality

Ⅰ. Adoption of the needle-thread active tension - Needle tension is digitally controlled

Needle thread tension, which matches the sewing conditions given, can be set on the operation panel and stored in memory. The needle thread tension adjustment needs experience. However, for this, the DDL-900C, thread tension data stored in memory is reproducible, thereby reducing the setup time when the product to be sewn is changed. Example: Needle-thread active tension demonstrates its effectiveness in the topstitching process. For the welting shoulders of a difficult-to-sew material, uniform stitches can be produced continuously by appropriately changing the sewing conditions, even if the right and left material fabrics differ in texture and grain.

Ⅱ. Active presser foot pressure mechanism - The presser foot pressure is digitally controlled

The DDL-9000C has a digital control system that controls the presser foot pressure. Under the automatic mode, the multi-layered section detection function detects changes in material thickness to increase/decrease the presser foot pressure accordingly. Under the manual mode, the presser foot pressure control function is assigned to the hand switch to enable operation with the hand switch.

Ⅲ. Needle thread clamp

The device clamps the needle thread and draws it under the material at the beginning of sewing. The needle thread clamp device works to reduce the size of thread tangling on the wrong side of the material. This expands the area around the needle entry, thereby allowing the use of various gauge components.

Management of sewing performance and the DDL-9000C sewing machine by the utilization of IoT (Internet of Things)

Management, browsing, and editing of data can be carried out on the application software

Data on the DDL-9000C sewing machine adjustments made according to the product to be sewn can be transferred to a commercially available Android tablet in contactless mode. This enables a quick check for uniform settings as well as confirmation of the conditions of sewing machines in a sewing line, thereby facilitating setup changes.

The operation panel is also provided as standard with a USB port. Data management and software updates can be carried out with ease using a USB thumb drive. Data items of sewing can be numerically managed to ensure \"stable quality\" and \"reduction in time required for setup changes\". Quantified sewing data can be externally taken from the sewing machine using an Android tablet or USB thumb drive.

LED Light on the DDL-9000C

The LED light illuminates the needle entry area in the just-under direction from the right and left sides of the needle bar. In comparison with the single-direction illumination, this LED light helps the operator carry out sewing more easily. Illuminance of the LED light is adjustable in five levels. It can also be used as an auxiliary lamp for working.