Increased rigidity and JUKI's unique high-performance feed control system contribute to increased feed accuracy, thereby reducing uneven material feed during outward/inward sewing. Uneven material feed during outward/inward sewing is reduced. In addition, for the feed system of the feeding frame, either the intermittent feed or the continuous feed can be selected.

The thread clamp mechanism and the feed mechanism that succeeded JUKI's unique technologies have been reviewed for improvement. As a result, more beautifully-finished seams are now produced. In addition, the main-shaft retry function can be selected with the memory switch. This improves the penetration force of the needle when sewing heavy-weight materials.

Highly-evaluated active tension that is used for setting the needle thread tension is now added with new functions. The output can be changed over with the memory switch between the low-tension side output and the high-tension side output to enable fine adjustment of the thread tension in the actual area of use. Not only the thread tension during sewing can be changed at a pin point but also it can be set in accordance with the material thickness. In addition, the needle thread tension that is likely to vary with the sewing direction can also be corrected. All of these adjustments can be done on a stitch-by-stitch basis through the operation panel with ease. Since the needle thread tensions adjusted in accordance with various sewing conditions are reproducible, setup changing time is reduced at the time of changeover of processes.

The feeding frame comes in two types; one is the monolithic feeding frame and the other is the separately-driven feeding frame (consisting of separate right and left parts). Since the right and left parts of separately-driven feeding frame can be operated independently, easier placement of the material under the feeding frame is promised. The amount of lift and lifting/lowering speed of the feeding frame can be set separately for its right and left parts.

Height of the lower dead point of intermediate presser can be changed steplessly in order to respond to sewing of multi-layered sections of material.
(Standard: 0 - 3.5 mm; Maximum: 0 - 7.0 mm)
The intermediate presser stably holds the sewing material, thereby preventing sewing troubles such as stitch skipping and thread breakage. In addition, the intermediate presser can be held at a desired height according to the material thickness, thereby preventing the sewing product from being damaged. Since the intermediate presser lifting amount is increased from the conventional 20 mm to 25 mm, ease of placement of the material on the sewing machine is increased.

The feeding frame can be lowered in two steps. It is very convenient for finely positioning the material on the sewing machine. The stopping height of the feeding frame can be set as desired with ease.

Non-magnetic material is adopted to the throat plate auxiliary cover. As a result, the presser foot pressure or sewing performance is not affected by a magnetic resistance even when a magnet throat plate is used.

This bobbin winder does not require the operator to wind the thread on the bobbin at the beginning of bobbin winding procedure. The bobbin winder starts winding a bobbin only by placing the bobbin on it.