Long Arm Two-Needle Cylinder Bed Compound Feed Lockstitch Sewing Machine

Long Arm Two-Needle Cylinder Bed Compound Feed Lockstitch Sewing Machine

For Sewing Reverse Filter Bags and Ventiducts

Available Models:

• GC2281-1D – 850mm Arm Length with 90mm Cylinder Bed

• GC2281-1F – 1270mm Arm Length with 102mm Cylinder Bed

📌 Overview

This long arm, two-needle cylinder bed heavy-duty lockstitch sewing machine is purpose-built for the precise production of industrial filter bags—especially reverse filter bags and ventiducts. Designed for demanding applications, it combines advanced compound feed technology, extended reach, and rotating cylinder bed functionality to deliver consistent seam quality in complex industrial fabric structures.

✅ Key Features

• Specialized for Reverse Filter Bags and Ventiducts
  Optimized for multi-layer bag bottoms, cylindrical ducts, and structural seams—delivering high-strength and uniform stitch quality.

• Extra-Long Arm Design (850mm / 1270mm)
  Enables easy handling of large-diameter and long bags, offering expanded workspace and operator comfort.

• Two-Needle Lockstitch Configuration
  Produces two parallel seam lines simultaneously for added strength and durability in industrial use.

• Rotating Cylinder Arm for Seam Accessibility
  The rotating cylinder bed allows flexible adjustment of the sewing head angle, making it easy to access circular seams, bag bottoms, and tight corners.

  • Reduces fabric distortion and operator repositioning

  • Ideal for reverse filter bag bottom closing and ventiduct joints

• Compound Feed Mechanism
  Synchronizes needle, presser foot, and feed dog movement to ensure steady fabric feeding, especially on thick or layered materials like PTFE, aramid, or fiberglass felt.

• Sliding Lever Thread Take-Up
  Provides accurate thread tension and prevents skipped stitches on dense fabrics.

• Large Vertical Japanese Rotary Hook
  Fitted with a premium Japanese-made rotary hook, ensuring smooth thread delivery, reduced wear, and long-term reliability—especially with high-tension industrial threads.

• Cog Belt Drive System
  Synchronizes arm and hook shafts to reduce vibration and maintain stitch consistency.

• Lever-Type Stitch Regulator
  Allows precise stitch length adjustments to meet different production needs.

• High Presser Foot Lift
  Facilitates feeding of bulky materials, suitable for multi-layer bag structures.

• Long Stitch Length Capability
  Increases production efficiency while ensuring strong structural seams.

⚙️ Advanced Automation Features

• Energy-Efficient Servo Motor
  Offers quiet operation, precise speed control, and reduced power consumption.

• Auto Needle Positioning
  Automatically positions the needle at the end of each seam for consistent results.

• Auto Backtracking
  Reinforces seam start and end points automatically for added durability.

• Auto Presser Foot Lift
  Enhances workflow by lifting the presser foot automatically after each seam, reducing operator fatigue.

Available Models & Technical Specifications

🔍 Why Choose This Machine?

• Industrial-Grade Durability
  Cast iron frame and reinforced mechanical parts ensure long-term operation under heavy workloads.

• Premium Japanese Components
  Equipped with Japanese-made rotary hook, ensuring high-speed stability, long lifespan, and exceptional stitch performance even on thick and dense filter materials.

• Precision Engineering for Filter Bags
  Unlike general-purpose lockstitch machines, this model is optimized for the bottom-closing structure and tubular shapes of reverse filter bags and ventiducts.

• Rotating Arm Increases Accessibility
  Minimizes repositioning and improves ergonomics, particularly for bag bottoms and circular closures.

• Supports Multi-Shift High-Volume Production
  Stable speed, consistent stitch quality, and low maintenance requirements make it ideal for industrial use.