📌Brand : WORLDEN 📌Model : WD-1851D 📌Automatic grade : Semi 📌Max RPM : 3500 📌Motor Type : Direct Drive Servo Motor 01 Year Warranty KEY FEATURES: ✅ Direct Drive Motor – Energy-efficient, low vibration, and reliable operation ✅ Automatic Foot Lifter – Boosts productivity and reduces operator fatigue ✅ High-Speed Performance – Up to 3,500 stitches per minute (RPM) for rapid production ✅ Needle Type: DPx5 – Suitable for various fabric types ✅ Stitch Type: Lockstitch – Secure and durable button attachment ✅ Automatic Thread Trimming – Reduces manual effort and improves workflow ✅ Adjustable Stitch Length – Customize for different button sizes and fabrics ✅ Durable Construction – Heavy-duty frame designed for long-term industrial use ✅ User-Friendly Design – Easy to operate, maintain, and adjust ✅ Versatile Application – Ideal for shirts, ...