• Machine time is substantially reduced

  The MEB-3900 reduces the machine time due to its maximum sewing speed of 2,500 sti/min and its speed-up cloth cutting knife, thereby demonstrating increased productivity.
  Then newly adopted direct-driven main shaft by means of a compact AC servomotor not only achieves enhanced responsiveness, but also achieves both reduced noise and reduced vibration. In addition, the machine has adopted an air-driven cloth cutting knife which promises excellent responsiveness and operates faster than the conventional knife.

• Reliable overall thread-trimming and needle thread-trimming mechanism

  Two different thread trimmers are prepared.
  One of them can be selected according to the customer's needs.
  The overall thread trimmer has been putting importance on productivity.
  It promises thread trimming without fail and trims the thread in a short time.
  The operator is no longer required to carry out fine adjustments of the thread trimmer when changing the sewing length.
  A sewing machine with a needle thread trimmer (Needle thread trimming type) has been the MEB Series in response to customer needs.

  

• Direct-drive motor is adopted

  The machine has adopted a direct-drive method that connects a compact AC servomotor directly to the main shaft. The quick startup and increased stopping accuracy obtained as a results guarantees outstanding responsiveness. In addition, the direct-drive motor does not use a V-belt to reduce power consumption.

  

• An active tension mechanism that electronically controls the needle thread tensions

  Needle thread tensions can be digitally established on the operation panel according to sewing conditions. Data can be registered on a pattern-by-pattern basis to easily reproduce the same sewing conditions.
  Using conventional machines, it's often quite difficult to reproduce the same sewing conditions. This machine does it with ease. With this capability, the MEB-3900 responds immediately to material changes, significantly reducing the time required for setup changes or adjustments. The machine also ensures the consistent production of high-quality seams.

  

• Needle thread tension can be separately established for various sections of a buttonhole such as eyelet sections and parallel sections

  The machine promises high-quality seams by smoothly responding to changes in stitch formation and allowing the operator to set a separate thread tension for the bartacking sections of buttonholes.
  Thread tensions for the beginning and end of sewing can also be separately established. This helps prevent loose stitches or slip-off or raveling of thread at the beginning of sewing.

  

• Threading work can be more easily

  Since fewer parts need to be threaded, the machine can be threaded more quickly and easily than conventional buttonholing machines.

• Management of sewing performance and 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 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 quick check for uniform settings as well as confirmation of 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 update 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.
  *Android OS Version 6.0 is recommended to use JUKI Smart APP.
   (Operation is confirmed with respect to Versions 5.0 and later.)
   Contact JUKI distributor in your area for how to use the application software.

  

• Various data can be obtained by using the Smart APP

  The data obtained by the APP are reflected in the graph.

  

• Thanks to the computer control, many different eyelet shapes and straight buttonhole shapes can be selected or established on the operation panel

  The machine is provided as standard with 12 different stitching shape patterns. As many as 87 different patterns can be stored in memory and selected.

  

• Corresponds to that efficiently sews longitudinal buttonholes

  • The machine head has a wider space under the work clamps to permit easy placement of a sewing product, thereby improving workability.
  • The semi-sunken machine head promises easy placement and smooth handling of sewing products. Pistol pocket sewing of finished product became easier.
  • The amount of material opened can be easily adjusted using the screw mounted outside the machine head.

  

• Improved viewability around the needle entry

  Projection of the arm frame of the machine head has been reduced. In addition, the cloth cutting knife is located closer to the operator side as compared with the conventional model.
  Viewability, when placing the material on the sewing machine, is improved, thereby contributing to improved workability. In addition, the thread clamp mechanism of the needle thread clamp (optional) has been improved for better viewability.

  

• Adjustment of Cloth Cutting knife

  When the blade of the cloth cutting knife wears, It can be adjusted by changing the height of the spacer.

  

• Latch type bottom cover

  A latch type bottom cover is adopted. Daily maintenance (threading, adjustment of the looper thread, cleaning, etc.) can be carried out without raising the machine head.

  

• Excellent maintainability

  • The computer controlled design eliminates most of the complicated mechanisms.
    This dramatically improves maintainability.
  • The machine head is supported by a gas-spring that makes it easy to raise for smoother cleaning and threading. The tilted up machine head can safely take down thanks to the mechanical lock.

  

• The machine is provided as standard with an LED light

  An LED light is provided as standard on the underside of the jaw of the machine head.
  The area around the needle entry is this brightened to improve workability.
  The brightness of LED can be adjusted to 20 levels.

  

• Improvements of working environment

  • Adoption of a direct-driven main shaft and a revamping of the curve sections of the thread take-up cam and looper cam contribute to remarkably reduced vibration and noise.
  • The machine automatically reclaims cloth chips after cloth cutting action to keep the working environment cleaner.

  

Model name	MEB-3900J	MEB-3900C
Application	Jeans	Cotton pants and working wear
Stitching shape patterns	The machine is provided as standard with 12 different stitching shape patterns of eyelet buttonhole. As many as 87 different patterns can be stored in memory and selected.
Stitch system	1-needle, double chainstitch (with gimp)
Sewing speed	400~2,500sti/min*
Stitch length	10~38mm (Needle thread trimming type) 10~34mm (Overall thread trimming type)
Needle throwing width	Mechanical adjustment of the needle throwing width : 2.0~4.0mm Compensation of the needle throwing width (by drived feeding table) : 1.5~5.0mm
Taper bar length	3~15mm
Work clamp height	13mm
Method for changing stitch shape	By selecting a program
Buttonhole cutting method	By cut-before knife or cut-after or without buttonhole cutting
Cloth cutting knife drive system	Pneumatic
Needle (at the time of delivery)	D0×558 Nm90~Nm120 (Nm110)
Lubricating oil	JUKI MACHINE OIL No.18 (equivalent to ISO VG18)
Compressed air	Main regulator : 0.5 MPa Hammer pressure regulator : 0.35 MPa (standard), 0.4 MPa (Max)
Air consumption	49.5 l/min (11.6 cycle/min)
Power requirement and power consumption	Single-/3-phase 200-240V, 250VA
Weight	Machine head : 110Kg, Operation panel : 0.3Kg, Control Box : 5Kg
Dimensions	Machine head : 382mm (W) × 656mm (D) × 584mm (H) Completed-product : 1,050mm (W) × 700mm (D) × 1,248mm (H) (thread stand is not included)

*"sti/min" stands for "Stitches per Minute."

When you place orders

MEB-3900J
MEB-3900C

Guage	THROAT PLATE
Figure
P/N	40115404	40115406	40115403	40115405
Part number	A01 (for narrow needle throwing width)	B01 (for wide needle throwing width)	A00 (for narrow needle throwing width)	B00 (for wide needle throwing width)
Applicable needle throwing width	2.0~3.0mm	2.0~4.0mm	2.0~3.0mm	2.0~4.0mm
Needle size	#90~#110
Gimp position W	1.8
Type	Option For J01 and C01 types	Standard For J01 and C01 types	Option For J00 and C00 types	Standard For J00 and C00 types

Guage	PRESSER SET_LEFT
Figure
P/N	40115325	40115309	40115241	40115239
Part number	Compensating foot for eyelet buttonhole 34mm	Compensating foot for eyelet buttonhole 38mm	Edge preser for eyelet hole 34mm	Edge preser for eyelet hole 38mm
Standard equipment for each type.	C01	C00	J01	J00

Guage	PRESSER SET_RIGHT
Figure
P/N	40115324	40115316	40115240	40115238
Part number	Compensating foot for eyelet buttonhole 34mm	Compensating foot for eyelet buttonhole 38mm	Edge preser for eyelet hole 34mm	Edge preser for eyelet hole 38mm
Standard equipment for each type.	C01	C00	J01	J00

Guage	PRESSER SET_LEFT
Figure
P/N	40035239	40039844	14059604	14059802
Part number	Edge preser for eyelet hole 34mm	Edge preser for eyelet hole 22mm	For eyelet buttonhole 32mm	For eyelet buttonhole 22mm

Guage	PRESSER SET_RIGHT
Figure
P/N	40035238	40039843	14059505	14059703
Part number	Edge preser for eyelet hole 34mm	Edge preser for eyelet hole 22mm	For eyelet buttonhole 32mm	For eyelet buttonhole 22mm

Guage	PRESSER HOLDING PLATE
Figure
P/N	40115322	40115323	32027104	32027005
Part number	Eyelet buttonhole presser holding plate, left	Eyelet buttonhole presser holding plate, right	Eyelet buttonhole presser holding plate, left	Eyelet buttonhole presser holding plate, right
Shape of hole	Eyelet buttonhole		Eyelet buttonhole
Stitch length	10~34		10~38
Type	For J01 and C01 types		For J00 and C00 types

Guage	CLOTH CUTTING KNIFE
Figure
Shape of hole	P/N	Remarks	X	Y	L
Eyelet buttonhole	40115664	Provided as standard	2.8	4.3	26
	40115665	Only for the sewing machine provided with the needle thread trimmer	2.9	4.4	38
	32063604	Optional spacer type	2.9	4.4	24
	32063703	Optional spacer type	2.9	4.4	32
	32063802	Only for the sewing machine provided with the needle thread trimmer, optional spacer type	2.1	3.2	38
	32063901	Optional spacer type	2.1	3.2	24
	32064008	Optional spacer type	2.1	3.2	32
	32064008	Optional spacer type	3.2	5.4	38
	32064206	Optional spacer type	3.2	5.4	24
	32064305	Optional spacer type	3.2	5.4	32
	32066904	Only for the sewing machine provided with the needle thread trimmer, optional spacer type	2.7	5.1	38
Decorative buttonhole	14041404	Optional spacer type	0	0	38
	32065302	Optional spacer type	0	0	24
	32065401	Optional spacer type	0	0	32

Guage	Optional spacer
Figure
P/N	40115728

Guage	KNIFE HOLDER
Figure
Shape of hole	For eyelet buttonhole		For decorative buttonhole
Size (mm)	P/N	Remarks	P/N	Remarks
38	40115670	-	-	-
28	40122567	-	-	-
26	40115669	J accessories	-	-
24	40122566	-	-	-
22	40115668	C accessories	-	-
18	40122565	-	-	-
20	40115667	J accessories	-	-
16	40115666	C accessories	-	-
38	32067209	Optional spacer is used	14042501	Optional spacer is used
36	32067308		32064404
34	32067407		32064503
32	32067506		14042600
30	32067605		32064602
28	32067704		32064701
26	32067803		14042808
24	32067902		32064800
22	32068009		14042907
20	32068108		32064909
18	32068207		32065005
16	32068306		14043103
14	32068405		32065104
12	32068504		32065203
10	32068504		14043301

Guage	Optional spacer
Figure
P/N	40115639