Specifications

JY4420 industrial lockstitch sewing machine
1.heavy material
2.large vertical hook
3.plunger pump lubrication
4.safetyclutch

JY4410/4420 HEAVY DUTY COMPOUND FEED LOCKSTITCH SEWING MACHINE

 

 

JY 4410/4420 brief introduction

 1.This thread is the lastest of brand heavy duty compound feed lockstitch sewing machines,which is designed with large vertical rotating hooks for thread loop catching and sliding bars for thread uptaking.

 

2.It has been sub-classed into single needle,two needle,single needle with under-trimmer and two needle with under trimmer.

 

3.The application if needle bearings for arm shaft and hook shaft,cog belt driving,plunger pump lubrication and compound feed by needle bar.

 

4.Presser foot and feedog provides this series with such splendid features as smooth running,quiet working and a long service life.

 

5.It is also equipped with a safety clutch to prevent the hooks from damage by over-duty operation.

 

6.So it is especially available in stitching car seat cushions,safety belts,safety air bags,tents,parachutes.etc.

 

 

 

2. . Main produt lines

 

1) heavy durty lockstitich sew machine

 

 2) normal lockstich sewing machine; re-condtioned 8500/8700/318/328

 

 3) overlock sewing machine

 

 4) interlock sewing machine

 

 5) leather/shoes machine

 

 6) household sewing machine

7)  parts of sewing machines

 

specification:

Advantange:

1. large vertical rotating hook

2. compound feed

3. equipped with  a safety clutch to prevent th hooks from damage by over-duty operation

4. smooth running, quiet working and a long service life

5. suitable for car seat cushions,safey belts, safety air bags, tents,parachutes etc.