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Double Needle Sewing Machine for Dust Bags
US$1,800.00-2,000.00
1 Piece
Product profile
Customization
AvailableAfter-sales Service
Intructions and Face to Face VideoWarranty
1 YearModel NO.
SQ-4331Condition
NewCertification
CE, ISO9001Application Place
FactoryApplicable Thickness
Thick MaterialDrive
ElectricThread Number
Double ThreadsNeedle Number
Double NeedlesStitch Type
Lock TypeTransport Package
Wooden CaseSpecification
1350*650*1400mmTrademark
SanQiuOrigin
ChinaHS Code
8452219000Production Capacity
10000PCS/YearKey features
Double Needle Lock Stitch: Features imported vertical double rotating hook forming two parallel lock type stitches for neat results.
Synchronous Feeding System: Cylindrical type design with needle, dental, and foot presser synchronous feeding prevents fabric deviation.
Electronic Positioning Motor: Automatically positions needle above fabric when stopped, eliminating need for frequent hand-wheel turning.
High Sewing Speed: Max sewing speed reaches 2600rpm/min for efficient production of thick filter bag materials.
Clutch Safety Device: Built-in safety mechanism prevents machine damage caused by overload during operation.
Customizable Needle Gauge: Needle gauge options include 4.8mm, 6.4mm, or 12mm, selectable or customized to specific needs.
Adjustable Stitch Length: Knob type disc allows easy adjustment of stitch length for various sewing requirements.
Versatile Application: Ideal for sewing tents, parachutes, hot air balloons, seat cushions, sofas, and cylindrical filter bags.
Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2016-01-01 CertifiedNearest Port: Shanghai PortAverage Response Time: ≤4.13h CertifiedTerms of Payment: LC, T/T, PayPal, etc.
AI-Powered supplier vetting
SummaryChangzhou Shanqiu Machinery Equipment Co., Ltd. is a China-based manufacturing factory established in 2012, focused on filter-bag and filter-cartridge production equipment, including sewing, ultrasonic welding, hot-air welding, cutting, and automated production lines. It operates from a 2,560 m² facility with 21 employees, reports 6–10 quality-control staff, and states that it has self-operated import and export rights. The supplier exports to multiple global regions, with exports accounting for 41%–50% of total sales, and reports one-month order fulfillment in both peak and off-peak seasons. Its stated strengths include product specialization, manufacturing and service activities, and product-related R&D experience. However, no management-system certifications are reported, R&D engineering experience is limited to two years, and the provided information does not sufficiently establish after-sales capability, customization capability, financial credibility, or a broad customer-case record.
Supplier typeThe supplier is identified as a factory and manufacturing enterprise in Changzhou, Jiangsu, China. Its business scope covers industrial equipment, components, services, and manufacturing machinery, while its legal form is described as a limited company.
CertificationsThe supplier explicitly reports no supplier management-system certification ("NIL"). This is direct evidence that no such certification is documented in the provided information.
R&D capabilityThe supplier emphasizes research, innovation, and product development, and offers multiple specialized technologies including automatic production lines, ultrasonic welding, hot-air welding, and precision cutting equipment. However, only two years of R&D engineer experience is reported, so the evidence supports product-development activity but not a clearly strong innovation advantage.
Production capacityThe supplier operates a 2,560 m² manufacturing plant, identifies itself as a factory, produces several categories of filter-bag and filter-cartridge machinery, and reports one-month fulfillment during both peak and off-peak periods. Its 6–10 quality-control staff and export operations further support operational capability.
Product Q&A
Q:What is the warranty period?
A:
We provide a 1-year warranty for the machine.
Q:What after-sales services are available?
A:
We offer instructions and face-to-face video support for all customers.
Q:Is the needle gauge customizable?
A:
Yes, the needle gauge can be selected or customized from options like 4.8mm, 6.4mm, or 12mm.
Q:What is the maximum sewing speed?
A:
The machine supports a maximum sewing speed of 2600rpm/min.
Q:Can this machine handle thick materials?
A:
Yes, it is specifically designed for sewing thick filter bag fabrics and other thick materials.
Send Inquiry
*To:
Changzhou Shanqiu Machinery Equipment Co., Ltd.
Changzhou Shanqiu Machinery Equipment Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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