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JUKI TNU-243U Extra Heavy-Duty Unison-Feed Sewing Machine

JUKI TNU-243U Extra Heavy-Duty Unison-Feed Sewing Machine

TNU-243U

1-Needle Semi-Long Flat Bed Lockstitch System with Table and Servo Motor

$9,094.99
$9,094.99 Market price:
Sale Sold out
Head Only (No Table)
Delivery within 3-5 working days
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  • Description
  • Features
  • Specifications
  • Application
  • Manuals & warranty

JUKI TNU-243U 

is the definitive solution for sewing "extra-heavy-weight" materials. Featuring a Unison-Feed (Triple Feed) mechanism—where the needle, feed dog, and presser foot move in perfect synchronization—this machine ensures that thick or slippery layers advance evenly without shifting or puckering. Its Semi-Long Flat Bed design provides a larger workspace (420mm) than standard machines, making it ideal for maneuvering bulky items like cargo slings, safety harnesses, and heavy leather furniture. 

  • Unison-Feed (Triple Feed) Mechanism: The synchronized movement of the needle, feed dog, and walking foot provides incredible traction, allowing you to sew through multiple layers of heavy webbing or thick leather with absolute precision. 
  • Semi-Long Bed Workspace: With a 420mm (approx. 16.5") horizontal clearance, this machine offers significantly more room than standard flatbed machines for handling oversized projects. 
  • Extra-Large Shuttle Hook: Equipped with a large-capacity shuttle hook that accommodates thick industrial threads (up to #0) and reduces the frequency of bobbin changes. 
  • Extreme Presser Foot Lift: A massive 20mm presser foot lift (via knee lifter) allows for the effortless insertion and removal of extra-thick assemblies like foam-backed upholstery or heavy lifting straps. 
  • High-Climbing Walking Foot: The walking foot’s vertical stroke is adjustable, allowing it to "climb" over thick cross-seams and varying material heights without losing stitch consistency. 
  • Stitch Length up to 15mm: Capable of producing exceptionally long stitches, essential for the structural integrity of heavy-duty industrial products. 
  • Feed System: Unison-feed
  • Max. Sewing Speed: 800sti/min
  • Max. Stitch Length: 15mm (normal/reverse feed)
  • Needle Bar Stroke: 56mm
  • Lift of the presser foot: By hand: 12mmBy pedal: 20mm
  • Alternating vertical movement: 4~8mm
  • Thread take-up: Cam-type
  • Hook: Large shuttle-hook
  • Needle at time of delivery: 794 (Nm230) Nm130~Nm280 or DY×3 #21~#28
  • Thread: #8~#0, B92~B277, Nm=30/3~8/3
  • Lubrication: By an oiler
  • Lubricating Oil: JUKI New Defrix Oil No.1 (equivalent to ISO VG7)
  • Bobbin Winder: Built on the machine arm
  • Distance from needle to machine arm: 420mm
  • Bed Size: 656mm×253mm
  • Weight of the machine head: 65kg

  • Logistics & Safety: Cargo slings, safety harnesses, seat belts, and tie-down straps. 
  • Heavy Upholstery: Leather sofas, theater seating, and sports mats. 
  • Saddlery & Leathercraft: Saddles, holsters, knife sheaths, and heavy-duty belts. 
  • Technical Textiles: Tents, sails, and multi-layered canvas covers. 

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.

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.

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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