Industrial DN2 Series Sewing Machine Factory China Suppliers for PP Woven and Jute Bags

Looking for reliable China suppliers? Our factory provides the DN-2 series sewing machine, widely used in the PP bag, paper bag, and Jute bag making industry for high-efficiency industrial production.

SupplierHEBEI LONGSEW MACHINERY TECHNOLOGY CO. LTDwww.longsew.com

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The DN-2 series represents a pinnacle of industrial sewing engineering, specifically designed for the demanding requirements of the PP woven bag, paper bag, and jute bag manufacturing industries. Whether you are seaming FIBC bag spout tubes or securing top skirt covers, these machines provide the heavy-duty reliability and precision needed for high-volume production environments.

Engineered for maximum versatility, the series offers a comprehensive range of configurations including double-needle 4-thread chainstitching (DN-2W) and left-hand specialized models (DN-2LW). With the introduction of the "U type" top and bottom feeding system, the DN-2WU provides superior fabric handling and feeding performance, ensuring seamless operation even with the thickest industrial materials.

Detailed Parameters

Max. Speed	2800 rpm	Bag Materials	Paper, Jute, PP Woven
Stitch Type	Double Thread Chain Stitch 401	Stitch Range	7-12mm (Model dependent)
Needle Type	DR×2 #25 or #26 / UY143GS 200/230	Lubrication System	Automatic Lubrication
Feeding Type	Bottom Feed / Top & Bottom Feed (U-Type)	Operation Direction	Right Hand / Left Hand Available
Compatibility	100% Exchangeable with Newlong machines	Special Features	Optional Pneumatic Cutter (C-Series)

Key Advantages

Industrial Durability

Built for heavy-duty usage in FIBC and jumbo bag production, ensuring long-term stability under stress.

High-Speed Efficiency

Reaching speeds up to 2800 rpm, drastically increasing your daily output and reducing lead times.

U-Type Feeding

Advanced top and bottom feeding system provides superior material control and smoother sewing performance.

Versatile Configurations

Available in single/double needle and right/left hand versions to fit any factory layout.

Pneumatic Integration

Optional pneumatic cutters (DN-2HSC/DN-2WC) enable seamless integration into automated production lines.

Universal Fit

100% exchangeable with Newlong machines, making upgrading your existing line effortless.

Product Gallery

Management Platforms

Material Handling

Optimized for PP, Jute, and Paper fabrics to minimize material waste.

Speed Control

Stable performance at 2800 rpm for consistent stitch quality.

Line Integration

Easy synchronization with FIBC auxiliary and packing machines.

Precision Seaming

Ideal for critical areas like spout tubes and top skirt covers.

Fleet Scalability

Interchangeable parts make managing a large fleet of machines simple.

Maintenance Ease

Automatic lubrication system reduces downtime and manual labor.

Investment Return Comparison

Metric	Standard Machines	DN-2 Series	Impact
Production Speed	Moderate	High (2800 rpm)	Increased Throughput
Feeding Stability	Basic Bottom Feed	U-Type Top/Bottom	Lower Error Rate
Setup Time	Custom Fitting	100% Exchangeable	Rapid Deployment
Labor Cost	High Manual Adjustment	Auto-Lubricated	Reduced Maintenance
Versatility	Single Material	Multi-Material (PP/Jute)	Expanded Product Range

Frequently Asked Questions

Q: Which DN-2 model is best for high-volume automated production lines?

For automated lines, we recommend the DN-2HSC or DN-2WC models, as they include integrated pneumatic cutters to streamline the cutting and sewing process.

Q: What is the advantage of the "U type" feeding system in the DN-2WU?

The U-type system features both top and bottom feeding, which significantly improves fabric movement and prevents slippage when sewing thick FIBC materials.

Q: Can these machines replace my existing Newlong sewing heads?

Yes, the DN-2 series is designed to be 100% exchangeable with Newlong machines, allowing for a seamless upgrade without modifying your existing equipment.

Q: What materials are compatible with the DN-2 series?

The machines are highly versatile and designed for PP woven bags, paper bags, and jute bags, making them ideal for diverse packaging industries.

Q: What is the difference between the DN-2W and DN-2LW?

The DN-2W is a right-hand sewing machine, whereas the DN-2LW is a left-hand version, allowing you to configure your production line for optimal operator ergonomics.

Q: Does the DN-2 series require frequent manual oiling?

No, the DN-2 series features an automatic lubrication system, which ensures all critical components remain oiled during operation, reducing maintenance downtime.