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1. Brief introduct on
Both the models adopt straight twin-needle and two horizontal hooks with auto lubrication for thread
looping, sliding lever for thread take up to form two lines of lockstitch seam. The upper shaft and lower
shaft is connected by ball bearing and driven by teeth-type synchronic belt; plunge oil pump lubrication
system. They adopt the compound feed mechanics of feed dog, needle bar and presser foot, even if for long
stitch length and long material, They can deal with them freely.
They are widely used in factories of suitcase, tent, cushion, leather
The difference between the two models:
4400TW adopts twin-needle, two large horizontal hooks with auto lubrication. With the parts it can
form ten different needle gauges.
4400SW adopts single needle and form single line double lockstitch form.
2. Main Technical Specification
1 Application:
2 Max. sewing speed:
3 Max. Stitch length :
4 Needle bar stroke:
5 Presser foot lift height:
6 Hook:
7 Needle:
8 Lubrication:
9 Needle gauge: (Twin-needle)
10 Motor power:
3. Installation and preparation
3.1 Installation
3.1.1 Location of the machine
To ensure a smooth running, the machine should
be located on rigid and
rubber
mat between machine stand and floor is
recommended for further reducing the running noise
and vibration.
3.1.2 Oil Reservoir Installation(Fig.1)
Put the oil reservoir into the table cutout, and
place the four cushions on the four corners of the
cutout, and place oil
3.1.3 Mounting machine head(Fig.2)
Make the hinge A of machine head engaged with
( )
hinge socket B on the table, then turn the machine
head freely till it is seated on the frame of table
cutout.
i
2000 rpm
flat floor. The insert of
felt into the oil reservoir.
medium and heavy duty materials
9 mm
36 mm
8mm(by hand); 16mm(by knee)
large horizontal hook with auto lubrication
DP 17 Nm125~180
pump auto lubrication (partial of manually oiling)
6.4, 3.2, 4, 4.8, 8, 9.5, 12.7, 16, 19, 25.4
0.37 kw (clutch motor)
B
small
A
big
B
-1-
goods, apparel, mat, etc..
oil felt
A
1
B
A
2
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