lk-1900a series computer-controlled high-speed bartacking machine lk-1900a-ss table stand is optionally available lk-1900a series the machine is provided with an active tension mechanism which enables the electronic control of stitching
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lk-1900a series the machine runs at 3,000rpm faster than any other sewing machine ever made the proven computer-controlled bartacking machine has been dramatically evolved to be an easier-to-use machine higher productivity the machine runs at 3,000rpm faster than any other sewing machine ever made 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 excellent seam quality 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 the thread trimming mechanism has been further improved to shorten the length of thread remaining on the wrong side of the material afte
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the machine is provided as standard with an auto-lifter that uses a new stepping-motor system 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 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 excellent workability and operability 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 the arm section of the machine head is fitted with a hand pulley this allows the operator to visually check the needle entry points the sewing starting point can be corrected the sewing starting point
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computer-controlled high-speed bartacking machine for eyelet buttonholes lk-1901a the machine ensures high-quality bartacks on eyelet buttonholes the machine is provided with a material-drawing mechanism which draws the right and left parallel portions of an eyelet buttonhole near to one another the machine performs bartacking with the right and left parallel portions of the eyelet buttonhole drawn near to one another after the buttonhole is clamped under the work clamp foot thereby finishing highly durable and well-tensed eyelet buttonholes the sewing pattern best suited to the sewing product to be bartacked can be selected by single-key operation three different sewing patterns are prepared to enable easy switchover of sewing sizes if the sewing patterns are assigned to the pattern keys on the operation panel the sewing patterns can be called up or changed with single-key operation the machine sews the most optimally suited bartacks on eyelet buttonholes on the front bodies of garmen
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standard panel functional settings such as pattern numbers enlargement/reduction scales swing speeds and needle thread tensions can be established through the operation panel with ease standard sewing patterns can be assigned to pattern keys p1 to p50 any of the sewing patterns assigned to the p1 to p25 pattern keys can be activated with a touch of the corresponding key this means that workability is improved by assigning 25 sewing patterns that are most frequently used to those pattern keys as many as 20 different cycle sewing patterns each of which combines a maximum of 30 different sewing patterns can be stored in the memory the operation panel has been installed at an angle and can be placed at the top bottom right or left part of the table according to the operator s preference ip-410b operation panel provided with programmable functions the ip-410b is a new operation panel configured with a input function not available in conventional panels input and edit data while observing
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table of the standard patterns number of stitches sewing size mm length crosswise wise number of stitches note 2 no stitch diagram no of work clamp foot sewing size mm length crosswise wise note 2 no stitch diagram no of work clamp foot 1 1 2.0 16 2 3 1 2 42 3 2.5 16 4 4 6 3.0 24 7 large bartacking 1 17 21 0 10 2 3 1 18 28 linear bartacking 2.0 10 2 3 1 0 10 2 3 6 19 0 25 7 6 20 36 0 25 7 6 1 5 28 6 2.5 16 4 bottom 2.0 10 2 3 1 21 41 0 25 7 22 44 0 35 note 3 1 7 36 8 2.5 16 4 9 6 56 3.0 24 7 10 6 64 3.0 24 7 top 2.0 10 2 lengthwise bartacking 23 top 28 20 4.0 3 1 24 bottom top 36 20 4.0 9 10 25 bottom top 42 20 4.0 26 bottom top 56 20 4.0 11 small bartacking 21 2.5 6 lengthwise linear bartacking 27 bottom 18 20 0 12 28 2.5 6 8 28 bottom top 10 21 0 11 13 36 2.5 6 29 bottom top 20 0 14 large bartacking 14 2.0 8 30 bottom top 28 20 0 15 21 2.0 8 5 note 1 sewing size shows the dimensions when the scale rate is 100 2 refer the no of work clamp foot to the separate table of work clamp foot
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number of stitches sewing size mm length crosswise wise number of stitches note 2 no stitch diagram no of work clamp foot sewing size mm length crosswise wise note 2 no stitch diagram no of work clamp foot 31 52 7 10 13 41 29 20 2.5 32 63 7 12 13 33 semilunar bartacking 24 6 10 13 34 31 6 12 13 42 39 25 2.5 35 48 10 7 14 43 45 25 2.5 lengthwise bartacking 12 36 48 10 7 14 knit goods bartacking large size bartacking 44 58 30 2.5 6 37 90 3 24 7 45 75 30 2.5 38 28 2 8 5 round bartacking 39 28 ø12 16 46 42 30 2.5 40 48 47 radial tacking 91 99 ø8 15 148 164 48 49 50
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table of the work clamp foot no of work clamp foot 1 2 3 4 5 6 7 8 13518659 asm work 13548557 asm 13542964 asm 13548151 asm 13542451 asm 32.3 33.4 32.6 40.5 40 foot 20 27 21 27 10 22 5.1 3.4 4.5 40 40 40 clamp 32.8 27 35 10 22 5 14116107 25 17.5 14116404 25 14.5 17.5 14.5 14116800 14116305 14116206 13548003 25 18.5 13554803 14116602 without knurl without knurl 4.8 4.6 15 29 5.4 5.4 feed plate 29 20 21.2 11.4 37.3 27.4 24 application code finger guard s f f 13533104 h m s 13548300 h s 13533104 remarks standard accessory for s standard type machine head option 3 standard accessory for f foundation type machine head 1 option standard accessory for m knit and knitting fabric type machine head option standard accessory for h heavy-weight material and w with large hook for heavyweight materials type machine head option no of work clamp foot 9 10 11 12 13 14 15 16 13571955 asm 13561360 asm 14137509 right 40021871 right 40021874 right 40021877 right 40021880 right 14137608 left 40021872
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option simple work clamp kit for the lk-1900a series conventionally the front plate has to be removed to change the work clamp with the new work clamp kit the work clamp can be changed without removing the plate the lever for lifting the work clamp can be independently slid back and forth the machine parts can be adjusted and replaced entirely by hand without screwdrivers or others tools changing parts is now a clean-hands procedure simple work clamp kit part no 40057279 the work clamp cover plates right and left are not included in the kit foot pedal for standing work optional 2-pedal unit for standing work [part no m85205800a0 to connect the cable asm to the electrical box conversion cable separately available is necessary pk-57 [part no gpk570010b0 pedal switch conversion cable asm [part no m90125900a0]
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table of the optional parts part name feed plate blank type without knurl/with plating with knurl/with plating without knurl/stainless steel without knurl/with plating without knurl/without plating without knurl/stainless steel with knurl/with plating with knurl/without plating sewing area 20×40 sewing area 20×40 sewing area 20×40 sewing area 30×40 sewing area 30×40 sewing area 30×40 sewing area 30×40 sewing area 30×40 part no 14120109 14120307 14120505 40021855 40021856 40021857 40021858 40021859 t=1.2 stainless steel t=0.5 work clamp foot face plate asm face plate for presser blank sewing area 20×40 sewing area 20×40 sewing area 30×40 sewing area 30×40 sewing area 30×40 sewing area 30×40 14121263 presser blank t=3.2 work clamp foot blank with knurl/with plating right with knurl/with plating left with knurl/with plating right with knurl/with plating left with knurl/without plating right with knurl/without plating left with knurl/with plating right with knurl/with plating left a=1.6 b
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specifications model name application max sewing speed sewing area stitch length needle bar stroke lift of the work clamp foot auto-lifter needle thread tension needle at the time of delivery hook number of stitches that can be stored in memory number of standard patterns number of data that can be input enlarging/reducing facility memory medium bobbin thread counter lubrication lubricating oil sewing machine motor power consumption weight lk-1900a-ss standard lk-1900a-hs for heavy-weight materials lk-1900a-fs for foundation lk-1900a-ms for knits and knitted materials lk-1900a-ws with large hook for heavy-weight materials 2,700rpm 3,000rpm 30mm l×40mm w 0.1~10mm 0.1mm step 41.2mm standard 14mm 17mm when the reverse-rotation needle-up function provided as standard stepping motor type active tension electronic thread tension control system dp×5 14 dp×17 21 dp×5 11 dp×5 11 dp×17 21 standard shuttle hook large shuttle hook max 20,000 stitches 50 patterns 200 patterns for up to 150 pat
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marketing sales h.q 8-2-1 kokuryo-cho chofu-shi tokyo 182-8655 japan phone 81 3-3480-2357 2358 fax 81 3-3430-4909 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 soy ink on recycle paper july 2007 printed in japana
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