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- Single or double needle options
- Synchronous cog belt plunger pump lubrication system
- Low noise, high durability
- Ideal for car seat cushions, seat belts, airbags, tents, parachutes, and more |
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**More Details:**


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**Machines Exported To:**
SOKIEI machines have been successfully exported to countries such as 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 others.
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**Packing Details:**
Standard export wooden case with internal disinfection and plastic film wrapping for waterproof protection.
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**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 workers, we provide high-quality products used in handbags, luggage, leather goods, shoes, garments, sofas, golf accessories, car mats, tents, mattresses, sports equipment, and more.

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**FAQ:**
**Q1: Are you a trading company or a manufacturer?**
**A1:** We are a manufacturer with our own factory, ensuring the quality of every product we produce.
**Q2: What is your warranty policy?**
**A2:** We offer one year of free warranty on spare parts and excellent after-sales service.
**Q3: Why choose SOKIEI?**
**A3:** Our machines are energy-efficient, cost-effective, and environmentally friendly. We also provide outstanding pre-sale and after-sale support.
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**Contact Us:**
**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/)
**We look forward to serving you!**
Single Double Needle Compound Feed Heavy Duty Lockstitich Machine
**Product Specifications:**
- **Model No.:** 4420
- **Needle Number:** Double Needles
- **Stitch Type:** Lock Stitch
- **Product Name:** Flat Bed Sewing Machine
- **Voltage:** AC 110/220V
- **Needle:** Double Needle
- **Weight:** 25kgs
- **Application:** Clothes, Shoes, Luggage, Handbag, Sofa, Leather, etc.
- **After-Sales Service Provided:** Yes
- **OEM:** Yes
- **Trademark:** SOKIEI
- **Transport Package:** Standard Wooden Case
- **Specification:** 670*335*650 MM
- **Origin:** Dongguan, China
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**Product Images:**



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**Application:**
This heavy-duty flat-bed lockstitch sewing machine is ideal for a wide range of industrial applications. It is commonly used in the production of shoes, shoe uppers, moccasins, handbags, suitcases, computer bags, golf bags, clothing, jeans, phone cases, seat belts, safety belts, Velcro, car seat cushions, airbags, tents, parachutes, and other large equipment.
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**Technical Parameters:**
| **Parameter** | **Details** |
|---------------------------|----------------------------------|
| 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, Compound Feed, Lock Stitch |
| Commodity Introduction | - Large vertical rotating hooks
Size : 1.13/16"
Pressure : 15000Ppsi (103.5Mpa)
Material: EE
Performance : PR1
Temperature : L U (-46° – 121°)
Specification : PSL3