HL-4400/4420-L18"     Single/Double Needle Long Arm Walking Foot Lockstitch with 457 x 150mm
HL-4400/4420-L25"     Single/Double Needle Long Arm Walking Foot Lockstitch with 635 x 150mm
HL-4400/4420-L30"     Single /Double Needle Long Arm Walking Foot Lockstitch with 762 x 150mm
HL-4400/4420-L40"     Single/Double Needle Long Arm Walking Foot Lockstitch with  1016 x 150mm

Description:

1. This model is designed with large vertical rotating hook for thread loop catching & sliding bar for thread up-taking

2. With walking foot compound feed by needle bar, presser foot & feed dog,  provide smooth running & quiet working

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

4. Base on 4400/4420, the working space to  457mm*150mm, maximum 20 plies twisted thread & stitch length to12mm

5. Most widely used for car seats, safety belts, safety air bags, tents, parachutes, mat, sails, etc