H22, 23 (Hemming Type (With Left Hand Fabric Trimmer)); Specifications - JUKI MF-7900 Series Engineer's Manual

7. H22, 23 (Hemming type (with left hand fabric trimmer))

(1) Specifications

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