Short-Arm Two-Needle Cylinder-Bed Sewing Machine for Industrial Filter Bags

Purpose-built for sewing cuffs, reinforcement layers, and circular seams on heavy-duty filter bags.

📌R&D Background

This machine was developed through close collaboration with industrial filter bag manufacturers. It solves the limitations of general-purpose sewing machines when dealing with tubular shapes, technical felts, and multi-layer seams. Every detail—from the cylinder-bed structure to the triple-feed mechanism—is engineered for stability, strength, and filter bag performance.

📌  Product Overview

This is a two-needle, short-arm, cylinder-bed lockstitch sewing machine featuring a compound feed system. Designed for precision circular sewing, it provides excellent maneuverability for filter bag cuffs, reinforcement strips, and bottom seams.

Typical Applications:

• Sewing top cuffs and reinforcement strips on filter bags

• Full seam construction for standard-length filter tubes

• Tubular stitching with tight radius and multi-layer overlap

📌  Why Upgrade from Flat-Bed Machines?

Conventional flat-bed sewing machines are not optimized for tubular structures. They often cause:

• Fabric slippage and uneven seams

• Difficulty reaching closed or curved areas

• Frequent repositioning and operator fatigue

✅ The short-arm cylinder-bed structure allows smooth circular sewing without twisting the product—enhancing stitch accuracy and reducing effort.

📌  Key Features

⚡ High-Speed Industrial Sewing – Up to 2000 stitches/min for efficient production

🛠️ Japanese High-Precision Rotary Hook – Reduces thread breakage and needle skipping

🧵 Two-Needle Lockstitch – Parallel or reinforced seam stitching

🌀 Cylinder-Bed Design – Easy access for round or closed shapes

🔄 Triple Compound Feed – Ensures consistent fabric feeding

⚙️ Compatible with Heavy and Multi-Layer Technical Textiles – Aramid, PTFE, PPS, fiberglass

📏 Adjustable Stitch Length and Presser Foot Pressure

🧠 Heavy-Duty Construction – Designed for continuous industrial operation

📌  Japanese Rotary Hook – Key Advantage

Unlike low-cost or general-purpose machines, this model is engineered for industrial-grade performance. It easily handles four-layer bottom seams on heavy filter bags without skipped stitches or power overload.

The Japanese rotary hook ensures:

✅ Stable tension with fewer thread breaks

✅ Clean stitch formation even at high speed

✅ Extended service life with less maintenance

✅ Smooth operation with minimal vibration

📌  Applications

• Filter bag cuff and bottom seam construction

• Reinforcement layer stitching (100mm / 150mm wide)

• Round and tubular textile seams for filtration, ducting, and insulation products

📌  Your Benefits

• Higher sewing accuracy on tubular components

• Faster production with less rework

• Minimal operator strain

• Purpose-built for filter bag manufacturing

📌Technical Specifications