JUKI DDL-5530N Handbook page 62

Super-high-speed, Cylinder-bed, Overlock Machine
MOC-3900 SERIES
A small-diameter cyilinder bed has been introduced.
operator can easily handle the sleeve cuffs of children's wear,
the diameters of which are very small.
operator to help feed a tubular material being sewn along the bed.
This helps reduce the operator's fatique.
The machines in the MOC-3900 series in corporate high-precision
components, are light in weight, and can sew pieces of material
without applying heavy pressure on them.
machines to smoothly feed soft and delicate materials as well as perform
consistent sewing, while preventing the material from flopping and the
presser foot from jumping even when running at high speed.
High-speed, Cylinder-bed, Variable Top-feed Overlock Machine
MOF-3900 SERIES
The machine comes with the top-feed dog that moves along an ideal
locus. The feed dog securely catches the material and allows the
multi-layer portion of a material to be fed under it with consistency.
In addition, it helps finish uniform seams while preventing the presser
foot from jumping and smoothly feeds the material without fail.
Compact-shape of the cylinder effectively prevents the material from
being fed unevenly and from twisting in various kinds of sewing of
tubular materials, e.g., joining sleeve cuffs of which diameter is small
and blind hemming long materials.
The machine achieves the highest sewing speed among cylinder-bed,
variable top-feed overlock machines.
capabilities especially when blind hemming long materials.
In addition, it is not necessary to reduce the sewing speed even if the
material thickness changes at joints or the like.
SPECIFICATIONS
Model name
Stitch type
Stitch style in the U.S.A.
Max. sewing speed
Stitch length
Needle gauge (mm)
Overedging width (mm)
Bottom differential-feed ratio
Needle bar stroke
Inclination angle of the needle
Needle
Vertical stroke of top-feed dog
Longitudinal stroke of top-feed dog
Max. lift of the presser foot
Max. presser foot pressure
Stitch length adjusting method
Differential-feed adjusting method
Weight of the machine head
Lubrication
Lubricating oil
Needle cooler
Needle thread heat remover
As a result, the
The cylinder-bed allows the
These features enable the
It demonstrates its sewing
MOC-3904 MOC-3914
1-needle overlock 2-needle overlock
504
8,500rpm 8,000rpm
3.2, 4, 4.8 2, 3.2, 4, 4.8
For gathering 1: 2.3 (max. 1: 4.5), For stretching 1: 0.8
7mm
JUKI New Defrix Oil No.2 (equivalent to ISO VG32)
By silicon oil lubricating unit for the needle tip
By silicon oil lubricating unit for the needle thread
MOF-3904
1-needle, variable
top-feed overlock
514 504
Longitudinal stroke of top-feed is 6mm or less: 7,000rpm
Longitudinal stroke of top-feed is 6mm to 8.5mm: 6,000rpm
0.8 3.5mm
2, 2.4
24.5mm
20°
DC 27, For JE: B-27
7mm
58.8N (6kg)
By push-button
By lever
28kg
Automatic
MOC-3900, MOF-3900 SERIES (June, 2001) 1/4
MOC-3914
MOF-3914
MOF-3914
2-needle, variable
top-feed overlock
514
2, 2.4
3.2, 4, 4.8
3.5 8.5mm
1 8.5mm
6.5mm
3