How long is the production lead time after order confirmation?

7-15 working days for standard models, subject to order quantity and stock availability.(it depends on your quantity)

Sk 4420-2D Long-Arm Automatic Double-Needle Triple Synchronization Heavy-Duty Industrial Sewing Machine

Name: Sk 4420-2D Long-Arm Automatic Double-Needle Triple Synchronization Heavy-Duty Industrial Sewing Machine
Brand: TAIZHOU SEWKEY GARMENTS MACHINERY CO.,LTD.
SKU: 2277321115

Zhejiang, ChinaTAIZHOU SEWKEY GARMENTS MACHINERY CO.,LTD.

US$815.00

1 Set

Product specifications

working area size

Sample price:US$995.00/set.Request sample

Product profile

After-sales Service

Video Technical Support

Warranty

One Year

Condition

New

Model NO.

SK 4420-2D

Certification

Application Place

Factory

Applicable Thickness

Middle Thickness Material

Drive

Electric

Thread Number

Double Threads

Needle Number

Four Needles

Stitch Type

Lock Type

Max Stitch Length

0-10mm

Degree of Automation

Semi-Automatic

Target

Leather

Drive Type

Electric

Weight

42kg

Voltage

220V

Sewing Speed

2200spm(Stitches Per Minute)

Oil Supply Method

Automatic Oil Supply

Presser Foot Lift Height

8-16mm

Needle Bar Stroke

36mm

Hook Type

Large Vertical Rotary Hook

Transport Package

Carton

Specification

1050*280*550mm

Trademark

sewkey

Origin

Taizhou China

HS Code

84522110

Production Capacity

1000 Per Year

Key features

63.5cm Long Arm: Perfect for large workpieces like sofas, tents, and upholstery.

Triple Synchronous Feed: Needle + Presser Foot + Feed Dog, no slippage on heavy materials.

Double Needle Efficiency: Dual-line stitching, doubles production speed for thick fabrics.

Heavy-Duty Sewing: Handles up to 8-10mm thick materials like leather, canvas.

Built-in Electronic Control: Auto thread trimmer & needle positioning for easy operation.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceSelf-branded100% Finished Products Inspection

TAIZHOU SEWKEY GARMENTS MACHINERY CO.,LTD.

Zhejiang, China

CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 16 Years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤5.19h 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.