Longsew.com | Heavy Duty & FIBC Sewing Machines Manufacturer in China

Engineered for Reliability

Longsew has been a trusted name in industrial sewing machinery for years, specializing in heavy-duty and FIBC (Jumbo) bag sewing machines. Our mission is simple: deliver unmatched quality and performance for the most demanding industrial applications.

We believe that only through superior craftsmanship and relentless innovation can we survive and thrive in the global market. Every machine is built with precision, tested rigorously, and designed to last.

10+ Years of Industrial Expertise
Specialized in FIBC, Safety Harness & Sail Applications
Customizable Machines for Unique Needs

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Our Featured Products

Discover our range of high-performance industrial sewing machines designed for FIBC bags, safety harnesses, sails, and extra-heavy materials.

80700CD4H FIBC Bag Sewing Machine

Double needle chain stitch machine for Jumbo bags. Supports flat/cylinder bed, pneumatic/manual lift, hot cutter. Handles up to 18mm thickness with filler cord.

Needles: Double
Stitch Type: Chain Stitch
Max Thickness: 18mm
Applications: FIBC, Jumbo, Big Bags

GSC367TD Lock Stitch Sewing Machine

Single needle lock stitch with top & bottom feeding. Ideal for bulk bag making with excellent thread control and durability.

Needles: Single
Stitch Type: Lock Stitch
Feeding: Top & Bottom
Model Variants: GSC367, GSC367TDZ, GSC367-L

LS273-2010H Safety Rope Sewing Machine

Computerized pattern sewing machine with Durkopp Adler 204 big shuttle hook. Handles thick threads like 1500dx3, V415, T-500.

Hook: Durkopp Adler 204
Thread Support: Up to 1.4mm
Applications: Safety belts, lifting slings
Automation: Computerized Pattern

LS300-5030 Automatic Pattern Sewing Machine

Fully automatic computerized machine with 6x large rotary hook for high bobbin capacity. Ideal for loop sewing in bulk bags.

Hook: 6x Large Rotary Hook
Automation: Full Computerized
Efficiency: High-speed pattern sewing
Use Case: FIBC loop stitching

81300A1H Heavy Duty Sewing Machine

High-power flatbed machine for extra-heavy materials. Built for saddlery, tents, and industrial upholstery.

Type: Flat Bed
Material: Extra Heavy Duty
Applications: Leather, Tents, Upholstery
Power: Industrial-grade motor

LS5800 Long Arm Sewing Machine

Extended arm design for large material handling. Perfect for sails, tarps, and large industrial textiles.

Arm Type: Long Arm
Height: High Arm Option
Use Case: Sails, Tents, Tarps
Optional: Puller for heavy materials

Heavy Duty Cylinder Bed Sewing Machine

Designed for cylindrical parts and tight spaces. Ideal for bag loops, straps, and tubular sewing.

Bed Type: Cylinder
Applications: Straps, Loops, Tubes
Needle Options: Single/Double
Drive: Direct or Servo

Industrial Overlock Sewing Machine

High-speed overlocking for edge finishing and seaming. Ensures clean, durable seams on heavy fabrics.

Type: Overlock
Speed: High RPM
Use: Edge finishing, seaming
Material: Heavy-duty textiles

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Industrial Applications

Our machines are engineered for the toughest industrial sewing tasks across multiple sectors.

FIBC (Jumbo) Bag Sewing

Complete sewing systems for FIBC, bulk, and big bags with high efficiency and durability.

Saddlery & Leather Sofa

Heavy-duty machines for leather, tents, baseball gloves, and upholstery.

Sail Making

Heavy-duty zigzag machines with long arm options and pullers for large sails.

Safety Rope & Harness

Computerized pattern machines for safety belts, lifting slings, and harnesses.

Frequently Asked Questions

What types of FIBC bags can your machines handle?

Our machines are designed for all types of FIBC (Jumbo) bags, including U-panel, tubular, and circular designs. With options for single or double needles, flat or cylinder beds, and hot cutters, we offer full customization.

Can I customize the sewing pattern on computerized machines?

Yes. Our LS273 and LS300 series allow customers to design and program their own sewing patterns based on product requirements.

Do your machines support thick threads?

Absolutely. Machines like the LS273-2010H support very thick threads including 1500dx3, V415, T-500, and even 1.4mm hollow or flat threads.

What is the maximum material thickness your machines can sew?

The 80700 series can handle up to 18mm thickness with filler cord function, making it ideal for the heaviest industrial materials.

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Heavy Duty & FIBC Sewing Machines for Industrial Applications