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Features:

1. The needle feed mechanism in cooperation with the walking foot mechnism achieves powerful feeding force. As a result, a high quality seam without material slippages is assures; 
2. The lifting amount of the presser foot reaches 20mm assuring smooth placement/ removal of extra heavy duty material;
3. The wide free space under the machine arm allows the operator to easily place and remove large sewing machine;
4. The built in bobbin winder makes easy operation during the sewing;                                      
5. Large shuttle hook and large bobbin reduces frequent bobbin changing and makes the machine idealy suitable for sewing extra heavy duty mterials;  
6. With aptional pneumatic presser foot lifter and back tracking; 
7. Suitable for handbags, baseball, gloves, sports apparatus, safety bags, tents, seat cushions, case, bags and other heavy duty or extra heavy materials.

Specification:

Model No.	JN-441	JN-471
Rpm	800 s.p.m	800 s.p.m
Stitch Length	15 mm	15 mm
Presser Lift Height	20 mm	20 mm
Needle	Dpx3	Dpx3
Diameter of Cylinder Bed	81mm	81mm
Extra Heavy Duty Material	Yes	Yes
Net Weight	62/58 kg	62/58 kg
Dimension	780*425*560	780*425*560
Remark	Unison Feed	Unison Feed