Application: Heavy-weight materials
Max. sewing speed (rpm): 2500
Max. Stitch length (mm): 9
Needle bar stroke (mm): 36
Lift of the presser foot (mm): 9 (By hand); 16 (By knee)
Alternating vertical movement (mm): 1-6.5
Needle: 135 x 17 (nm160) nm125~nm180
Thread: #30~#5, B46~138, nm=60/3~20/3