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Sk 4420 Long Arm Double Needle Compound Feed Lockstitch Sewing Machine
US$360.00-440.00
1 Set
Product profile
After-sales Service
Video Technical SupportWarranty
One YearCondition
NewModel NO.
SK 4420Certification
CEApplication Place
FactoryApplicable Thickness
Middle Thickness MaterialDrive
ElectricThread Number
Double ThreadsNeedle Number
Double NeedlesStitch Type
Lock TypeStitch Length
0-7mmDegree of Automation
Semi-AutomaticTarget
LeatherDrive Type
ElectricWeight
42kgVoltage
220VSewing Speed
3000rpmOil Supply Method
Automatic Oil SupplyPresser Foot Lift Height
13mmTransport Package
CartonSpecification
670*350*635mmTrademark
sewkeyOrigin
Taizhou ChinaHS Code
8452290000Production Capacity
5000Key features
High-Speed Performance: Max sewing speed reaches 3000rpm for efficient production.
Specialized for Leather: Ideal for car seat cushions, seat belts, airbags, and leather goods.
Dual Needle Design: Double needles and double threads ensure strong, durable lockstitch seams.
Low Noise Operation: Comprehensive drive slide design ensures low noise and high durability.
Automatic Lubrication: Equipped with synchronous cog belt plunger pump for automatic oil supply.
Flexible Customization: Supports full customization, minor customization, and customization from samples.
CE Certified Quality: Meets CE certification standards for safety and quality assurance.
1-Year Warranty: Provides 1-year warranty for mechanical parts and 1-3 years for electronic parts.
Company profile
CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 16 Years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤4.30h CertifiedTerms of Payment: LC, T/T, D/P, etc.
AI-Powered supplier vetting
SummaryThe supplier is a limited company offering sewing machines and related mechanical and hardware products, with SEWKEY identified as its own brand. It reports established quality-control procedures, finished-product inspection instructions, corrective and preventive action records, and complaint-handling procedures. The supplier claims strong manufacturing and management systems, but the provided data does not independently verify production scale or certifications. Customization is available across several models, including sample, design, full, minor, and flexible customization. However, no new products were developed in the past year, and the supplier does not provide ODM, SDK, or popular-brand OEM services. Export activity is substantial at 90% of sales, with 16 years of export experience, but there are no overseas agents, branches, warehouses, showrooms, or stated overseas-service countries. Financial records are indicated for 2022–2024, but no financial results are provided.
Supplier typeThe supplier is identified as a limited company whose stated product scope includes sewing machines, while its business scope also covers mechanical equipment, hardware, and certain medical-device sales. SEWKEY is presented as its own brand, indicating a branded product supplier rather than only an intermediary.
After-Sales capabilityThe supplier reports a complete after-sales service system, documented corrective and preventive actions, and a documented customer-complaint procedure with records. However, it has no overseas agents or branches, no overseas warehouse or showroom, and reports zero countries with overseas services, limiting demonstrated local overseas support.
R&D capabilityThe supplier states that it introduced no new products during the past year, provides no ODM service, and has no available SDK. It does use ERP and reports OA, CRM, and SAP systems, but these support management digitization rather than proving product innovation.
Production capacityThe supplier reports advanced equipment, skilled workers, a high-efficiency production and management system, documented finished-product inspection, and quality-control assurance. It has no in-stock capability, while the status of outsourcing procedures and manufacturing contracts is unknown; production capability is therefore supported but not fully verified in scale or supply flexibility.
Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. These repeated descriptions provide direct evidence of broad customization capability, although they do not specify technical limits, tooling, or development timelines.
Product Q&A
Q:What is the maximum sewing speed?
A:
The maximum sewing speed is 3000rpm.
Q:What materials is this machine suitable for?
A:
It is especially suitable for middle thickness materials, such as car seat cushions, seat belts, airbags, tents, and parachutes.
Q:What are the warranty terms?
A:
We provide a 1-year warranty for mechanical parts and 1 to 3 years for electronic parts like motors and PCB boards, depending on the supplier.
Q:What are the payment terms?
A:
Standard terms are 30% T/T in advance with the balance against B/L copy. For amounts under USD 10,000, 100% T/T in advance is required.
Q:What is the delivery time?
A:
Delivery takes 10-15 days if goods are in stock, or 15-20 days if production is needed, depending on order quantity.
Send Inquiry
*To:
TAIZHOU SEWKEY GARMENTS MACHINERY CO.,LTD.
TAIZHOU SEWKEY GARMENTS MACHINERY CO.,LTD.*Content:
Supplier replies will be sent to your registered email
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