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JUKI MF-7923-U11.B56 Top & Bottom Coverstitch Machine
The MF-7900 Series is a newly developed coverstitch machine provided with lots of mechanisms for improving the seam quality.
It is provided with many different sewing-related mechanisms which contribute to improved seam quality, such as the new feed mechanism, and differential-feed micro-adjustment mechanism. In addition, the machine is provided as standard with a looper thread twining prevention mechanism for improved maintenance.
U11 Universal type (basic type)
The machine can be used for the hemming process of the sleeves and bottoms of T-shirts and for the covering process for sportswear and knitwear.
The front cover is trimmed to allow operators to bring their hands closer near the needle entry area, thereby increasing work efficiency in the covering process, etc.
JUKI’s dry-head technology protects sewing products from being stained with oil
With the excellent functions inherited from the MF-7900 Series, the MF-7900D is provided with a dry frame mechanism to eliminate the cause of oil stains. Stain removing work or re-sewing work is substantially reduced by protecting sewing products from being stained with oil, thereby improving the quality of finished products.
| Model name | MF-7900 series | MF-7900D series | |||
|---|---|---|---|---|---|
| Stitch type | 2-needle/3-needle top and bottom covering stitch | 2-needle/3-needle top and bottom covering stitch | |||
| Needle | UY128GAS (#10S) #9~#12S | ||||
| Lift of the presser foot | 5mm (with top and bottom covering stitch), 8mm (with bottom covering stitch) | ||||
| Stitch pitch adjustment | By dial | ||||
| Differential feed adjustment | By micro-adjustment mechanism | ||||
| Lubrication | Automatiac | Automatic (frame: no lubrication) | |||
| Lubricating oil | JUKI Machine Oil 18 (equivalent to ISO VG18) | ||||
| Feed dog inclination adjustment | Provided as standard | ||||
| Micro-lifter | Provided as standard | ||||
| Needle gauge (mm) | 3.2, 4.0, 4.8, 5.6, 6.4 | ||||
| Needle bar stroke converting function | U11, H11, H22, H23, E11: Provided as standard: 31mm: at the time of delivery / When sewing a heavy-weight material: 33mm | U11, H22, H23, H24, H25, E11: Provided as standard: 31mm: at the time of delivery / When sewing a heavy-weight material: 33mm | |||
| E22, E23: Provided as standard: 33mm: at the time of delivery / When sewing a heavy-weight material: 35mm | – | ||||
| Silicon oil tank for needle tip and needle thread | Provided as standard | ||||
| Cartridge oil filter | Provided as standard | ||||
| Power requirement / Power consumption | Single-phase 100~120V / 200~240V, 3-phase 200~240V / 500VA (with automatic thread trimmer) | ||||
| Weight of the machine head | U11 | 41kg (without device), 49kg (with UT51), 51kg (with PL/UT52), 44kg (with UT57) | |||
| H11 (with PL) | 43kg (without device), 51kg (with UT52), 46kg (with UT57) | ||||
| H22, H23 | 42kg (without device), 50kg (with UT51), 45kg (with UT57) | ||||
| H24, H25 | – | 46kg (with UT57), 46kg (with UT59) | |||
| E11 (with PL) | 44kg (without device), 48kg (with UT55), 47kg (with UT56) | ||||
| E22, E23 (with PL) | 43kg (without device), 51kg (with UT52), 46kg (with UT57) | ||||
