LS203 Overlock Seaming Sewing Machine for FIBC Bags China Suppliers Factory

Looking for reliable China suppliers? Our factory provides the GN20 series LS20-3 sewing machine, specially made for 502 overedging stitch sewing. Ideal for FIBC bags, carpets, and fishing nets with high stability and industrial strength.



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The LS20-3 Overlock Seaming Sewing Machine is a high-performance industrial solution specifically engineered for the demanding requirements of FIBC (Flexible Intermediate Bulk Container), Jumbo Bag, and Big Bag manufacturing. Based on the versatile GN20 series, this machine excels in executing the 502 overedging stitch, ensuring superior edge stability and seam strength for heavy-duty industrial fabrics.

Designed for maximum efficiency, the LS20-3 offers a wide overlock width and a robust mechanism capable of handling exceptionally thick threads without compromising performance. Whether you are producing heavy-duty bulk bags or specialized industrial textiles, the LS20-3 provides a cost-effective, stable, and professional-grade alternative to complex combined-stitch machines, streamlining your production line for maximum output.

Detailed Parameters

Model SeriesLS20-3 (GN20 Series) Stitch TypeOveredging Stitch (502)
Over Seaming Width10-12mm Needle ConfigurationSingle Needle
Thread Capacity2 Threads Primary ApplicationFIBC / Jumbo Bag Overlock
Material CompatibilityVery Thick Industrial Threads Performance LevelHigh Stability/Heavy Duty
Machine CategoryIndustrial Overlock Sewing Machine Comparative ClassSimplified 81300 Alternative

Key Advantages

Heavy Duty Build

Engineered to handle very thick threads and heavy industrial fabrics with consistent tension and strength.

High Efficiency

Optimized for rapid overlocking of FIBC bags, reducing cycle time in big bag production lines.

Cost-Effective

Offers a more affordable price point than 81300 machines for users who only require overlock functions.

Wide Seam Range

Features a professional 10-12mm over seaming width for maximum edge security and durability.

Stable Operation

Precision-engineered components ensure low vibration and high stability during continuous industrial use.

Versatile Range

Part of a family including carpet and fishing net versions (LS20-2 to LS20-5) to suit any textile need.

Product Gallery

Management Platforms

Production Planning

Efficiently integrate the LS20-3 into your FIBC assembly line for seamless edge finishing.

Maintenance Cycle

Low-maintenance design reduces downtime and ensures long-term operational reliability.

Quality Control

Precise 502 stitching prevents fraying, meeting strict international FIBC quality standards.

Thread Management

Compatible with a wide variety of heavy-duty industrial threads for diverse material needs.

Workflow Optimization

Simplify your machinery park by selecting specialized overlock units for specific bag types.

Operator Training

User-friendly interface allows operators to master the machine quickly with minimal training.

Investment Return Comparison

FeatureLS20-3 (Overlock)81300 (Combined)Generic Machines
Initial CostLow / EconomicalHigh / PremiumMedium
Stitch FunctionOverlock Only (502)Overlock + ChainstitchBasic Overlock
Material StrengthExcellent (Heavy Duty)Superior (Double Secure)Average
Operational SpeedHigh EfficiencyMedium-HighLow to Medium
ROI PeriodFastest ReturnModerate ReturnSlow Return

Frequently Asked Questions

Q: What is the main difference between the LS20-3 and the 81300 machine?

The primary difference is the stitch capability. The 81300 combines Overlock and Chainstitch, whereas the LS20-3 focuses exclusively on the Overlock (502) stitch. This makes the LS20-3 more affordable and ideal for production lines that only require overedging.

Q: Can the LS20-3 handle very thick industrial threads for Jumbo Bags?

Yes, the LS20-3 is specifically designed for heavy-duty applications. It features a robust mechanism that can stably process very thick threads required for FIBC and Big Bag manufacturing.

Q: What is the over seaming width of the LS20-3?

The LS20-3 provides a professional over seaming width of 10-12mm, ensuring strong edge reinforcement for industrial bulk containers.

Q: Is this machine suitable for materials other than FIBC bags?

While the LS20-3 is optimized for FIBC bags, the GN20 series is versatile. Depending on the specific model (like LS20-2 or LS20-4), these machines can also be used for carpets, fishing nets, and other heavy-duty textile overlocking.

Q: Which model should I choose for fishing net overlock with a puller?

For fishing net overlock requirements that include a puller, we recommend the LS20-5 model, which is specifically configured for that application.

Q: How does the LS20-3 impact the overall cost of bag production?

By providing a specialized, high-speed overlock function at a lower purchase price than multi-function machines, the LS20-3 reduces initial capital expenditure and lowers the cost per unit during the sewing process.

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