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

Leading China factory and suppliers of DN-2 series sewing machines. Specialized for PP woven, paper, and jute bags, including FIBC spout tubes. Features U-type feeding and auto-cutter options. 100% exchangeable with Newlong machines for high-speed industrial production.

SupplierHEBEI LONGSEW MACHINERY TECHNOLOGY CO. LTDwww.longsew.com

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Product Overview

The DN-2 series represents the pinnacle of industrial sewing technology specifically engineered for the PP woven bag, paper bag, and jute bag manufacturing sectors. These high-performance sewing machine heads are meticulously designed to handle heavy-duty materials, providing seamless integration for seaming FIBC bag spout tubes and top skirt covers with unmatched precision and durability.

Offering a versatile range of configurations—including single needle, double needle, and specialized left-hand types—the DN-2 series ensures maximum flexibility for any production line. With the introduction of the U-type top and bottom feeding system and integrated pneumatic cutters for automated production lines, these machines deliver superior feeding performance and stable quality that meets the most demanding industrial standards.

Detailed Parameters

Max. Speed	2800 rpm	Stitch Type	Double Thread Chain Stitch 401
Bag Materials	PP, Paper, Jute	Stitch Range	7-12mm / 7-11mm
Needle Specification	DR×2 #25 or #26 / UY143GS 200 or 230	Lubrication System	Automatic Lubrication
Feeding Options	Bottom Feed / Top & Bottom Feed (U-Type)	Operation Direction	Right Hand / Left Hand Available
Cutting Option	Manual / Pneumatic Auto Cutter	Compatibility	100% Exchangeable with Newlong Machines

Key Advantages

Industrial Durability

Built for heavy-duty cycles in PP and jute bag production, ensuring long-term stability and minimal downtime.

High-Speed Efficiency

Reaching speeds up to 2800 rpm, significantly increasing daily output and production throughput.

Precision Feeding

The advanced U-type top and bottom feeding system provides superior material control and stitch consistency.

Versatile Configurations

Available in Single/Double needle and Right/Left hand versions to fit any factory layout.

Seamless Integration

100% exchangeable with Newlong machines, allowing for easy upgrades without altering production lines.

Automated Cutting

Pneumatic cutter options (DN-2HSC/WC) streamline the bag production process for maximum automation.

Product Gallery

Management Platforms

Model Selection

Easily choose between DN-2HS (Single) and DN-2W (Double) based on seam requirements.

Directional Control

Optimize workflow with LHS (Left Hand) or RHS (Right Hand) orientation options.

Feeding Optimization

Implement U-type feeding (DN-2HSU/WU) for heavier fabrics and better stability.

Production Automation

Integrate pneumatic cutters (DN-2HSC/WC) for fully automated bag cutting lines.

Material Adaptability

Adjustable settings for seamless transitions between PP, paper, and jute materials.

Maintenance Cycle

Auto-lubrication systems reduce manual intervention and extend machine lifespan.

Investment Return Comparison

Performance Metric	Standard Machines	DN-2 Series	Business Impact
Production Speed	1500-2000 rpm	Up to 2800 rpm	+40% Output
Feeding Stability	Bottom Only	Top & Bottom (U-Type)	Lower Reject Rate
Setup Time	Manual Adjust	Direct Exchangeable	Zero Downtime Upgrades
Cutting Process	Manual Cutting	Pneumatic Auto-Cut	Reduced Labor Cost
Maintenance	Manual Oiling	Fully Auto-Lube	Longer Component Life

Frequently Asked Questions

Q: Which DN-2 model is best for high-volume FIBC bag production?

For high-volume lines, we recommend the DN-2HSC or DN-2WC, which feature pneumatic cutters to automate the process and increase efficiency.

Q: Can the DN-2 series handle heavy jute materials?

Yes, the DN-2 series is specifically designed for PP, paper, and jute. For extra-heavy materials, the U-type feeding (top and bottom) is highly recommended.

Q: Is the DN-2 machine compatible with my existing Newlong setup?

Yes, the original type is 100% exchangeable with Newlong machines, ensuring a hassle-free installation in your current production line.

Q: What is the difference between the DN-2HS and DN-2LHS?

The DN-2HS is a standard right-hand type sewing machine, whereas the DN-2LHS is the left-hand version to accommodate different factory workflow directions.

Q: What is the benefit of the Double Needle (DN-2W) version?

The DN-2W uses a 4-thread chain stitch, providing a much stronger and more reinforced seam, which is critical for heavy-duty jumbo bags (FIBC).

Q: How does the automatic lubrication system help?

Auto-lubrication ensures that all critical moving parts are consistently oiled, reducing friction, preventing overheating, and significantly lowering maintenance costs.