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Computer-controlled, High-speed, Bartacking Machine
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| LK-1900A SERIES |
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The world's
highest sewing speed of 3,000rpm !
The proven computer-controlled bartacking machine has been dramatically
evolved to be an easier-to-use machine. |
| LK-1900A-SS (Table stand is optionally available.) |
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The machine achieves the world's highest sewing speed of 3,000rpm. |
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In addition to the high-speed sewing performance, the machine's
starting, stopping, thread-trimming and automatic presser lifting speeds have
been increased to significantly shorten total cycle time (reduced approximately
30% compared to our predecessor model: For 42-stitch large bartacks). |
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The machine comes with a newly developed needle thread grasping
mechanism. The mechanism prevents thread from slipping off from the needle eyelet
at the beginning of sewing, from tangling on the wrong side of the material and
also being stained during sewing. |
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The thread trimming mechanism has been further improved to shorten
the length of thread remaining on the wrong side of the material after thread
trimming. |
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| Wider
sewing area and many different sewing patterns. |
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With its 30mm (length) by 40mm (width) sewing area, the machine
can sew many different shapes of bartacks. |
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The machine is provided as standard with as many as 50 different
types of sewing patterns including semilunar bartacking, round bartacking,
radial tacking as well as conventional bartacks. |
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The LK-1900A is also able to sew bartacks using the same data
used for the LK-1900 (EP-ROM). |
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| Oil stains
are eliminated. |
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Thanks to our advanced dry-head technology, the frame (needle
bar and thread take-up) no longer requires lubrication. This prevents the material
from being stained with lubricating oil. |
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Just a small quantity of just clean oil is supplied from the
oil tank to the hook. |
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machine is provided as standard with the active tension (electronic thread
tension control mechanism). |
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Since the machine is provided with an active tension mechanism,
it is able to set a needle thread tension that matches various sewing conditions
(such as thread, material and sewing speed) on the operation panel, store
the data in memory and reproduce it. |
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The needle thread tension can be separated according to
stitching type or portion of a seam, such as the beginning part of the
seam, base stitched part, zigzag stitched part and end of the seam (fastening
stitch). |
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When the operation panel (IP-200B) is used in combination
with the active tension, the needle thread tension can be set on a stitch-by-stitch
basis. This helps eliminate undesired thread tension variations at a multi-layered
part of a material or with sewing direction, thereby contributing to upgraded
seam quality. |
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| A wide
choice of subclass models of LK-1900A. |
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The LK-1900A model comes in five different subclass models,
such as S type (standard), H type (for heavy-weight materials), F type
(for foundation), M type (for knits and knitted materials) and W type (with
a large shuttle hook for heavy-weight materials), to offer a choice according
to any application. |
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The needle's penetrating force into the material has been
increased. This provides an improved responsiveness to heavy-weight materials
for the H type machine. |
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The W type has adopted a large shuttle hook, which reduces
the frequency of bobbin-thread changing to enable highly efficient sewing
work. |
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| Bartacking pocket lip of suits (S type) |
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| Bartacking crotch of jeans (H type) |
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Attaching the shoulder straps to brassier (F type)
*Presser foot for vertical bartacking is supplied with the
unit as an accessory. |
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| Bartacking shoulder of running shirt (M type) |
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| Auto-lifter
mechanism utilizing a new system. |
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The machine is provided as standard with an auto-lifter
that uses a new stepping-motor system. This helps reduce operator fatigue. |
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It is also possible to change over the stroke of the auto-lifter
from a one-step stroke to a double-step stroke, which offers easier positioning
of a material on the machine. For the double-step stroke, an intermediate
stopping height can be established on the operation panel. |
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The presser foot lift can be set to a maximum of 17mm by
using the reverse-rotation needle-up function in combination with the auto
lifter mechanism. |
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| Excellent
workability and operability. |
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The direct-drive head (with no belt), which is directly
connected to a compact AC servomotor, achieves outstanding responsiveness
and improved stop accuracy. This head helps create a comfortable working
environment with reduced vibration and noise. |
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The arm section of the machine head is fitted with a hand
pulley. This allows the operator to visually check the needle entry points. |
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sewing starting point can be corrected. |
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The sewing starting point can be shifted in the X/Y direction.
This enables the correction of a sewing pattern in accordance with the presser
foot configuration. |
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| Highly
reliable electrical system. |
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The machine has adopted a highly reliable and safe transformer-less
switching power system with an increased resistance to voltage fluctuations. |
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Detailed error indications prevent trouble from occurring. |
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