Intelligent Lockstitch Sewing Machine

July 27, 2025

**Product Specifications:** - **Model No.:** BY-4420 - **Needle Number:** Double Needles - **Stitch Type:** Lockstitch - **Product Name:** Flat Bed Sewing Machine - **Voltage:** AC 110/220V - **Needle:** DP x 17 - **Weight:** 25kgs - **Application:** Clothing, Shoes, Luggage, Handbags, Sofas, Leather, and more - **After-Sales Service Provided:** Yes - **OEM:** Yes - **Trademark:** SOKIEI - **Transport Package:** Standard Wooden Case - **Specification:** 670*335*650 mm - **Origin:** Dongguan, China --- **Application:** This intelligent lockstitch sewing machine is widely used in various industries such as shoes, shoe uppers, moccasin shoes, handbags, suitcases, computer bags, golf bags, clothing, jeans, cell phone covers, safety belts, Velcro, car seat cushions, seat belts, airbags, tents, parachutes, and other large equipment. --- **Technical Parameters:** | Feature | Specification | |--------------------------|----------------------------------------| | Brand Name | SOKIEI | | Model | BY-4420 | | Stitch Formation | Lock Stitch | | Mechanical Configuration | Flat-bed | | Max. Sewing Speed | 2000 s.p.m | | Height of Presser Foot | 16mm | | Stitch Length | 0–9.0mm | | Power | 400W | | Dimension | 1200*540*860 mm | | Feed Mechanism | Compound Feed | | Certification | CE | | Needle | DP x 17 | | Pin Number | Double Needles | | Gross Weight | 25KGS | | Characteristic | Heavy Duty, Double Needles | | Commodity Introduction | - Large vertical rotating hooks
- Single or double needle options
- Low noise, high durability
- Ideal for car seat cushions, seat belts, airbags, tents, and parachutes | --- **More Details:** [Image: Intelligent Lockstitch Sewing Machine] [Image: Intelligent Lockstitch Sewing Machine] --- **Machines Exported To:** Saudi Arabia, Iraq, Dubai, Kuwait, Kazakhstan, Poland, England, Australia, New Zealand, Belgium, Belarus, Russia, Spain, Canada, USA, Mexico, Colombia, Chile, Brazil, Argentina, South Africa, Indonesia, Turkey, Bulgaria, Malaysia, Thailand, Singapore, Taiwan, Hong Kong, and many more countries around the world. --- **Packing Details:** Standard export disinfected wooden case inside, with plastic film wrapped outside to ensure waterproof protection. --- **About Us:** Dongguan SOKIEI Sewing Machine Co., Ltd. is a professional manufacturer specializing in the research, development, and sale of industrial sewing machines. With a team of experienced engineers and skilled staff, we provide high-quality products suitable for handbags, cases, leather goods, shoes, garments, sofas, golf equipment, tents, mats, mattresses, sports goods, and more. [Image: Intelligent Lockstitch Sewing Machine] --- **FAQs:** **Q1: Are you a trading company or a manufacturer?** A1: We are a manufacturer with our own factory, ensuring consistent quality and reliability. **Q2: What kind of warranty do you offer?** A2: We provide one year of warranty on spare parts, free of charge. **Q3: Why choose SOKIEI?** A3: Our machines are energy-efficient, cost-effective, and environmentally friendly. We also offer excellent pre-sale and after-sale services. --- **Contact Us:** Sincerely looking forward to serving you. Welcome to contact us anytime! **Address:** No. 2 Bohui Industrial Park, Liaobu Town, Dongguan, Guangdong, China **Contact:** Charlie **Mobile:** +86-139-2944-3020 / +86-150-1787-5470 **Tel:** +86-0769-8222-2263 **Fax:** +86-0769-8119-9875 **Website:** [http://sokiei.en.made-in-china.com](http://sokiei.en.made-in-china.com) [http://sokiei.en.alibaba.com](http://sokiei.en.alibaba.com) [http://en.sokiei.com](http://en.sokiei.com)

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Blow Molding Heat shrinkable film Packaging usage

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