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Juki MF-7923 3-Needle High-Speed Cylinder Bed Coverstitch Industrial Sewing Machine

Juki MF-7923 3-Needle High-Speed Cylinder Bed Coverstitch Industrial Sewing Machine

MF-7923

Top and BottomCoverstitchMachine with Free-Arm Design, Table, and Servo Motor

$3,999.95
$3,999.95 Market price: $3,999.99
Sale Sold out
Head Only (No Table)
Delivery within 3-5 working days
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  • Description
  • Features
  • Specifications
  • Application
  • Manuals & warranty
  • More accessories

Juki MF-7923  

is a world-class industrial coverstitch machine designed for high-speed apparel manufacturing. Its cylinder bed (free-arm) architecture is specifically engineered to handle tubular items like necklines, cuffs, and waistbands with ease. Featuring a top and bottom coverstitch capability, it produces highly elastic and durable seams that are essential for activewear, knits, and intimate apparel. With Juki's legendary stitch stability, this machine minimizes thread tension fluctuations, ensuring a soft, beautiful finish even on delicate fabrics. 

  • Specialized Cylinder Bed: The small-diameter free-arm allows for smooth maneuvering of circular garment sections that are impossible to sew on a flatbed. 
  • Top and Bottom Coverstitch: Provides a professional decorative finish on both sides of the fabric while maintaining maximum seam elasticity. 
  • Stitch Stability: The optimized thread path and looper mechanism prevent skipped stitches and thread breakage, even at high production speeds. 
  • Micro-Lifter Mechanism: Allows the presser foot to be adjusted to a minute height, preventing fabric damage or "slippage" when working with elastic or velvet-like materials. 
  • Differential Feed Adjustment: Features a micro-adjustment lever to perfectly sync the material feed, eliminating puckering or waving in stretch fabrics. 
  • Easy Maintenance: Designed with forced circulation and an oil filter to ensure the machine remains clean and lubricated during 24/7 operation. 
  • Adjustable Servo Motor: The included high-torque servo motor offers silent operation, significant energy savings, and precise speed control for delicate work. 
  • Stitch Type: 3-Needle Top and Bottom Coverstitch 
  • Max. Sewing Speed: 6,500 Stitches per Minute (SPM) 
  • Needle Gauge Options: 5.6mm (Standard) / 6.4mm 
  • Stitch Length: 0.9mm – 3.6mm (Adjustable up to 4.4mm) 
  • Differential Feed Ratio: 1:0.7 to 1:2.0 
  • Needle Bar Stroke: 31mm 
  • Presser Foot Lift: Up to 5mm (with top coverstitch) / 8mm (without) 
  • Needle System: UY128GAS (#9 to #14) 
  • Lubrication: Automatic (Forced circulation) 
  • Cylinder Circumference: 280mm 

The MF-7923 is the primary tool for high-volume knitwear and stretch-fabric production: 

  • Activewear & Sportswear: Flat-seaming leggings, jerseys, and compression gear. 
  • T-Shirts & Polos: Hemming sleeves, necklines, and waistbands. 
  • Underwear & Lingerie: Attaching elastic and finishing hems on delicate knits. 
  • Children's Wear: Navigating small-diameter openings for cuffs and leg holes. 

DOWNLOADS:

U.S. WARRANTY:

90 Days labor on defects in materials and workmanship.

** Head Only option does not include the table, legs, Servo Motor, and LED Lamp. No assembly or residential charges necessary.

DISCLAIMER: DUE TO THE WEIGHT AND SHIPPING METHODS USED FOR INDUSTRIAL MACHINES THEY MAY EXPERIENCE MARRING AND SCRATCHES DURING SHIPPING. THIS WILL NOT AFFECT THE OPERATION OF THE MACHINE.

<h2>ACCESSORIES for the JUKI MF-7923</h2>
<p><strong>Needles:</strong>&nbsp;<a href="https://www.goldstartool.com/coverstitch-chainstitch-industrial-sewing-machine-needle-system-uyx128gas.htm">#UYX128GAS 9S~12S (10S standard)</a><br>Oil:&nbsp;<a href="https://www.goldstartool.com/juki-new-defrix-oil-no-18.htm" target="_blank">Juki New Defrix Oil No. 18 #MML018900CA</a><br><br></p>
<h3>COMPATIBLE ATTACHMENTS</h3>
<p><em><strong>PRESSER FEET</strong></em><a href="https://www.goldstartool.com/3-needle-coverstitch-binder-presser-foot-94909.htm" target="_blank"><br>3 Needle Coverstitch Binder Presser Foot #94909</a><a href="https://www.goldstartool.com/1-4-foot-for-3-needle-industrial-coverstitch-pegasus-257301b-64.htm" target="_blank"><br>1/4" Gauge Presser Foot for 3 Needle Industrial Coverstitch - Pegasus #257301B-64<br></a><a href="https://www.goldstartool.com/3-needle-64mm-gauge-binder-presser-foot-for-industrial-coverstitch-sewing-machines.htm" target="_blank">3​-Needle 6.4MM Gauge Binder Presser Foot For Industrial Coverstitch Sewing Machines</a><a href="https://www.goldstartool.com/glide-on-foot-for-industrial-coverstitch-sewing-machines.htm" target="_blank"><br>Glide-On Foot For Industrial Coverstitch Sewing Machines #257468T-64</a><a href="https://www.goldstartool.com/presser-foot-adjustable-wide-roller-guide-for-coverstitch-machine.htm" target="_blank"><br>Presser Foot Adjustable Wide Roller Guide for Coverstitch Machine</a><a href="https://www.goldstartool.com/industrial-coverstitch-foot-with-center-guide-6.4mm.htm" target="_blank"><br>Industrial Coverstitch Foot with Center Guide, 6.4mm</a><a href="https://www.goldstartool.com/s537a-adjustable-elastic-big-guide-foot-64mm.htm" target="_blank"><br>S537A Coverstitch Sewing Machine Adjustable Elastic Big Guide Foot 6.4MM</a><em><strong>​</strong></em><br></p>
<p><em><strong>BINDERS/FOLDERS</strong></em><br><a href="https://www.goldstartool.com/coverstitch-collarette-clean-finish-binder-clean-finishtopand-bottomtable-mount.htm" target="_blank">Coverstitch Collarette Clean Finish Binder #s124B<br></a><a href="https://www.goldstartool.com/table-mount-coverstitch-collarette-binder.htm" target="_blank">Table Mount Coverstitch Collarette Binder #S124A<br></a><a href="https://www.goldstartool.com/collarette-binder-top-mount-1864.htm" target="_blank">Top Mount Collarette Binder Top Clean Industrial Cover Stitch Sewing Machine</a><br><a href="https://www.goldstartool.com/belt-loop-folder-for-coverstitch-and-double-needle-s66.htm" target="_blank">Belt Loop Folder for Coverstitch and Double Needle #S66</a></p>
<p><strong><em>GUIDE</em></strong><br><a href="https://www.goldstartool.com/adjustable-cloth-guide-binding-tool.htm" target="_blank">Adjustable Cloth Guide Used for 2 or 3 Needle Coverstitch Machine #DAYU205​</a></p>

ACCESSORIES for the JUKI MF-7923

Needles: #UYX128GAS 9S~12S (10S standard)Oil: Juki New Defrix Oil No. 18 #MML018900CA

COMPATIBLE ATTACHMENTS

PRESSER FEET3 Needle Coverstitch Binder Presser Foot #949091/4" Gauge Presser Foot for 3 Needle Industrial Coverstitch - Pegasus #257301B-643​-Needle 6.4MM Gauge Binder Presser Foot For Industrial Coverstitch Sewing MachinesGlide-On Foot For Industrial Coverstitch Sewing Machines #257468T-64Presser Foot Adjustable Wide Roller Guide for Coverstitch MachineIndustrial Coverstitch Foot with Center Guide, 6.4mmS537A Coverstitch Sewing Machine Adjustable Elastic Big Guide Foot 6.4MM​

BINDERS/FOLDERSCoverstitch Collarette Clean Finish Binder #s124BTable Mount Coverstitch Collarette Binder #S124ATop Mount Collarette Binder Top Clean Industrial Cover Stitch Sewing MachineBelt Loop Folder for Coverstitch and Double Needle #S66

GUIDEAdjustable Cloth Guide Used for 2 or 3 Needle Coverstitch Machine #DAYU205​

JUKI DDL-8700 FAQs

What kind of needles do you use in the DDL-8700?

The needles with your JUKI are the Organ DBx1, available on our website. This machine uses size 16×257, size 8 through 20 or 16×97. The 8700 can also use standard needles, sizes 9 through 21, universal or fabric-specific needles such as knit.

Where does the machine oil go?

A pan directly underneath the machine supplies oil to the machine with a cotton wick. Lift the machine up and over to access the oil tank while on the table. You must keep the machine’s oil level consistently at the «high» mark, either by adding more oil or draining it and refilling it as needed. If the oil pump can’t get the oil into the machine, it can cause serious problems later.

What kind of oil does this machine require?

You need a specific type, like motor oil in your car, to keep this machine running. The DDL-8700 requires JUKI New Defrix Oil No.1, equivalent to ISO VG7.

What size table can I get with this machine?

Our table has legs and is 22"w x 47"l. It includes a knee and foot pedals and a left-hand drawer for accessories.

Does the DDL 8700 make buttonholes?

No. The 8700 only does straight stitching, with a horizontal bar on the right side for a reverse stitch.

Product Videos

Juki MF-7923 & NewTech GC-664-01DA Comparison

Trade Show - Juki MF-7923 Coverstitch Cylinder Bed Sewing Machine

Product Showcase - JUKI MF-7923 3-Needle Sewing Machine - PART 1 - Goldstartool.com

Product Showcase - JUKI MF-7923 3-Needle Sewing Machine - PART 2 - Goldstartool.com

Product Showcase - JUKI MF-7923 3 Needle Coverstitch Sewing Machine

THE ADVANTAGES OF A SERVO MOTOR

THE ADVANTAGES OF A SERVO MOTOR

Because of the Servo motor speed control, most users find the machine more straightforward to use. Both beginning and seasoned sewers find this feature helpful when stitching projects that don't demand high-speed stitching.

They use up to 90% less power than clutch motors

They use up to 90% less power than clutch motors

They are 1/3 lighter than clutch motors

They are 1/3 lighter than clutch motors

With a flick of the switch, you can reverse motor rotation

With a flick of the switch, you can reverse motor rotation

No parts to wear out or adjust

No parts to wear out or adjust

No matter how hard you press the foot pedal, the configured speed remains the same.

No matter how hard you press the foot pedal, the configured speed remains the same.

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