• Sewing Speed: Max. 4,200rpm, Normal 3,600rpm.
• Needle Bar Stroke: 34.6mm.
• Size of Cloth Cutting Knife: 6.4-31.8mm.
• Bar tacking Width: Max. 5.0mm.
• Buttonhole Length: Max. 41mm (optional: 70mm, 120mm).
• Precision of needle throwing mechanism: 0.05mm.
• Needle Thread Tension: Active Tension (electronic tension control system)
• Number of Stitches: Automatically computed from the size of the buttonhole.
• Needle: (at the time of delivery): DP5 (#11J) #11J- #14J
• Hook: DP type. Full-rotary hook.
• Lift of the Work Clamp: 14mm.
• Auto-lifter provided as standard (stepping motor type).
• Needle Throwing System: Stepping Motor.
• Cloth Feeding System: Intermittent feed by Stepping Motor.
• Cloth Cutting Knife System: By double-acting Solenoid.
• Number of Standard Patterns: 30 Patterns.
• Number of Patterns that can be Input: Max. 99 Pattems.
• Bobbin Thread Winder: Built-in the Machine Head
• Machine Head Drive System: Compact AC Servo Motor (direct-drive system).
• Power requirement/ Power Consumption: Single-phase 220V, 230V, 240V 3-phase 200 24OV/600VA.
• Total Weight: 112 kg.

• The machine is provided as standard with as many as 30 stitch patterns for buttonholing.
• The machine eliminates oil stains on the sewing product.
• Duke's unique active tension (Electronic thread tension control system).
• Frame shape offers improved operability.
• Basting stitch mechanism is effective for the production of beautiful button holes.
• Sewing settings can be easily changed.
• Shorter length of bobbin thread remaining on the material.

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