– 99 –
7. H22, 23 (Hemming type (with left hand fabric trimmer))
(1) Specifications
Model
MF-7900-H22
MF-7900-H23
Class name
Covering stitch machine with left hand fabric
trimmer (for light-weight materials)
Covering stitch machine with left hand fabric
trimmer (for medium-weight materials)
Application
Hemming of knit and jersey products
Sewing speed
Max. 6,000 sti/min (at the time of intermittent operation)
Speed of stitch at the delivery : 4,500 sti/min (at the time of intermittent operation)
Needle
gauge
3-needle
5.6 mm, 6.4 mm
2-needle
4.0 mm, 4.8 mm
Differential feed
ratio
1 : 0.9 to 1 : 1.8 (stitch length : less than 2.5 mm)
(1:0.6 to 1:1.1, when the differential link hinge screw is changed)
Micro-differential feed adjustment mechanism is provided. (Micro-adjustment)
Stitch length
0.9 to 3.6 mm (Adjustable up to 4.5 mm)
Noise
- Equivalent continuous emission sound pressure level (L
pA
) at the workstation :
A-weighted value of 79.5 dB; (Includes K
pA
= 2.5 dB); according to ISO 10821- C.6.2
-ISO 11204 GR2 at 4,500 sti/min.