General

This is a high-speed, cylinder-bed, top & bottom coverstitch machine with an automatic thread trimmer, the motor of which is installed in the direct-drive style. The sewing machine is provided as standard with the newly-developed looper thread twining preventing device.The MF-7900 Series is a newly developed coverstitch machine provided with lots of mechanisms for improving the seam quality.

  • MF-7900Series

High-speed, Cylinder-bed,Top & Bottom Coverstitch Machine

  • MF-7900/UTSeries

Direct-drive, High-speed, Cylinder-bed,Top & Bottom Coverstitch Machine with Needle- and Looper- Thread Trimmer

  • MF-7900D Series

Semi-dry-head, Cylinder-bed,Top & Bottom Coverstitch Machine

  • MF-7900D/UTSeries

Semi-dry-head, Direct-drive, Cylinder-bed,Top & Bottom Coverstitch Machine with Needle- and Looper- Thread Trimmer

 

Specification

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 ※

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)

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