Dürkopp Adler 669 Cylinder Arm Triple-Feed Walking Foot Sewing Machine

Description

Dürkopp Adler 669 Cylinder Arm Triple-Feed Walking Foot Sewing Machine

Heavy-duty single-needle cylinder arm lockstitch machine designed for sewing medium-heavy to heavy materials, particularly tubular, curved and three-dimensional workpieces.

The Dürkopp Adler 669 is part of the advanced M-TYPE cylinder arm machine range and features a powerful triple-feed system consisting of bottom feed, needle feed and alternating walking-foot top feed. This feeding system ensures smooth, displacement-free material transport, even when sewing multiple layers, thick seams and difficult materials.

One of the key advantages of the 669 is its extremely slim 50mm cylinder arm, which provides excellent access to narrow, curved and difficult-to-reach sewing areas. This makes the machine especially suitable for leather goods, footwear, bags, upholstery components and technical textile applications.

With a maximum stitch length of 9mm, alternating foot stroke up to 9mm and sewing speed up to 3,000 stitches per minute, the Dürkopp Adler 669 combines high productivity with excellent material handling for demanding industrial applications.

Key Features

• Single-needle cylinder arm lockstitch machine
• Triple-feed system: bottom feed, needle feed and alternating walking foot
• Extremely slim 50mm cylinder arm for difficult-to-reach sewing areas
• Excellent feeding performance on multiple and uneven material layers
• Large horizontal hook with increased bobbin capacity
• Maximum stitch length: 9mm
• Maximum sewing speed up to 3,000 stitches/min
• Alternating presser-foot stroke up to 9mm
• Automatic presser-foot lift up to 20mm on equipped versions
• Excellent climbing capability over thick seams and material transitions
• Integrated direct-drive motor on modern configurations
• Available with automatic functions such as thread trimming and backtacking
• Adjustable alternating foot stroke with automatic speed limitation
• Minimal lubrication system for reduced maintenance
• Suitable for demanding three-dimensional and tubular sewing operations

Specifications

• Brand: Dürkopp Adler
• Class: 669
• Model: 669 Series
• Machine Type: Cylinder Arm Triple-Feed Walking Foot Sewing Machine
• Stitch Type: 301 Lockstitch
• Number of Needles: 1
• Feed System: Bottom Feed + Needle Feed + Alternating Top Feed
• Maximum Stitch Length: 9mm
• Maximum Sewing Speed: Up to 3,000 stitches/min
• Presser Foot Clearance While Sewing: Up to 10mm
• Maximum Presser Foot Lift: Up to 20mm
• Maximum Alternating Foot Stroke: Up to 9mm
• Needle System: 134-35
• Needle Size: Nm 100–150
• Hook: Large Horizontal Hook, 26mm
• Cylinder Arm Clearance: 335 × 125mm
• Cylinder Arm Diameter: Approximately 50mm
• Thread Size: Up to approximately Tkt. 15/3
• Motor: Integrated Direct-Drive Servo Motor on equipped versions
• Lubrication: Central Oil Wick / Minimal Lubrication System
• Rated Power: Approximately 375W on modern M-TYPE versions

Specifications may vary depending on the exact 669 subclass, including ECO, Silverline and Goldline configurations.

Suitable For:
Leather Goods • Handbags • Soft Luggage • Travel Bags • Footwear • Upholstery Components • Automotive Interiors • Technical Textiles • Filters • Canvas Products • Saddlery • Belts • Tubular Components • Three-Dimensional Products • Heavy-Duty Topstitching