This series is one of the long an types of Zhigong brand compound feed heavy duty lockstitch sewing machines,which is designed with large vertical rotating hooks for thread loop catching and sliding bars for thread up-taking.It has been sub-classed into single needle and two needle.The application of needle berrings for am shaft hook shaft,cog belt driving,compound feeding by needle bar,presser foot and feed dog provides this series with such splendid featyres as smooth running,quiet working,long service life and large working space.It is also equipped with a safety clutch toprevent the hooks feom damage by over-duty operation.So it is especially available in stitching car seats,safety air bags,tents,parachytes,etc.This series can be used with 550W speed adjust able motor and other optional attachments for automatic presser foot lifting,automatic reverse feeding and automatic needle positioning.
|
Model |
GW-8BL30 |
GW-28BL30 | |
|
Max.sewing speed |
1200r.p.m | ||
|
Stitch length |
10mm | ||
|
Needle bar stroke |
47.3mm | ||
|
Presser foot lift |
By hand |
20mm | |
|
By knee |
23mm | ||
|
Needle size |
DY?/SPAN>3 | ||
|
Needle |
1 |
2 | |
|
Rotating hook |
Large vertical hook | ||
|
Lubrication |
Manual | ||
|
Needle gauge |
--- |
12.7mm | |
|
Motor |
550W Clutch motor 1400r.p.m | ||
|
Working space |
762?/SPAN>153mm | ||