#7 Six-Thread Explosion-Proof Double-Layer Zipper
#7GS-SZ6-FB-W-PET-DC-7#

Six-Thread Explosion-Proof Double-Layer Zipper

Reinforced dual-layer closure for high-cycle industrial bags.

The #7 six-thread model is a medium-large profile for logistics bags and load-bearing packs. Four-needle six-thread sewing secures the tape to the bag body, while upper and lower polyester coil layers interlock across two tracks to distribute pressure during loading, compression, and transport. The flexible chain can follow the bag contour and remains stable through repeated industrial cleaning and disinfection cycles.

Key Features

  • Four-needle six-thread reinforced seam
  • Dual-layer interlocking teeth with dual-track lock
  • Polyester monofilament stays flexible in hot and cold conditions
  • Withstands repeated industrial washing and disinfecting

Specifications

ColorBlack (custom colors available)
Length100–3000 mm, ±3 mm tolerance (custom)
Profile#7 heavy-duty profile
MaterialHigh-density polyester tape
Tape width42.5±0.5 mm
Slider chamberH 3.0–3.1 / W 7.45–7.55 mm
Wide tape option44.5 mm
Zipper thickness2.85±0.05 mm
Closed chain width7.4±0.05 mm

Applications

  • Medium and large express reusable bags
  • Logistics bulk bags
  • Large storage bags
  • Outdoor load-bearing packs

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