The alternating vertical movements of the walking foot and presser foot are as large as 6.5mm.
In addition, the ratio between alternating vertical movements of the walking foot and presser foot remains unchanged even when the material thickness changes. Thanks to this feature and the adoption of a new method of rectangular feed that prevents needle from fraying, the machine sew multi-layered parts of a material with consistent stitching pitch while preventing stitch gathering.
The machine delivers increased productivity at sewing speeds as high as 2,500sti/min (DNU-1541, -1541S) or 3,000sti/min (DNU-1541-7).
When the thread is caught in the hook or any other sewing trouble occurs, the safety mechanism will automatically operate to prevent the machine from being damaged.
The vertical stroke of the presser foot and walking foot (amount of alternating vertical movement) can be easily changed with the large dial mounted on the top of the machine head. The sewing speed is automatically regulated based on the vertical stroke setting. This ensures ideal sewing conditions at all times.
Consisting only of a moving knife and counter knife, the simple and well-balanced thread trimming mechanism is capable of cutting thick thread up to without fail.
With just a light press on the one-touch type reverse feed button, reverse feed stitching is actuated. Furthermore, if a suspended ruler is attached to the machine or a 3-dimensional sewing product is sewn, the button can be shifted upward to prevent interruption.
The stitch length can be easily selected by the stitch dial.
The machine's enhanced operability features include a clear view of the area around the needle, placement of the bobbin thread winder on the front face of the machine arm, and a large handwheel (φ160mm).
A knee-lifter mechanism is built in the bed. This reduces the pressure required to operate the knee-lifter and facilitates setup.
The machine’s full-open-type top cover design makes adjusting works easier.
The machine comes with a lubricating mechanism that uses a centralized oil wick. This substantially reduces the time and trouble required for oiling the machine. (Hook: automatic.)
A walking foot mechanism is built into the machine arm to prevent oil from scattering.
Since the needle thread tension-release solenoid is fitted on the rear face of the machine head, the area around the needle entry and one-touch type reverse feed button is easily viewable. This substantially contributes to improved operability.
|Max. sewing speed||3,000sti/min||2,500sti/min|
|Max. stitch length||9mm|
|Presser foot||By knee: 16mm|
|Alternating vertical movement||1～6.5mm||2.5mm～6.5mm|
|Needle||135×17 (Nm160) Nm125～Nm180|
|Thread||#30～#5, B46～B138, Nm=60/3～15/3|