SPIFR #5 Metal Fire Retardant Single O Shape Zipper

    The Single O-Shape Fire-Retardant Zipper is engineered for protective garments and equipment that require a circular closure with a single defined opening point. Unlike full double-direction or multi-exit circular systems, the single-opening design ensures controlled access, stable sealing, and precise operational handling in high-risk environments.

Single-Point Access for Controlled Operation
    This zipper forms a continuous O-shaped track while maintaining one entry/exit location for the slider. It enables streamlined operations where consistency and repeatability are essential—ideal for sealed modules, inspection ports, protective suit interfaces, or detachable circular panels.

High-Level Fire Resistance
    Built with flame-retardant textile tape and heat-resistant metal components, the zipper resists ignition, melting, and heat deformation. It reinforces garments and equipment used in fire-risk, arc-flash, or high-temperature industrial settings, ensuring stability during critical operations.

Durable #5 Metal Teeth for Continuous Circular Motion
    The #5-grade metal teeth are engineered for structural reliability along a circular track. Each tooth interlocks with high tensile strength, maintaining uniform compression and secure closure—even under rotational use, bending stress, or high-frequency operation.

Smooth Slider Movement on a Closed Circular Track
    The slider travels seamlessly along the single O-path, ensuring uninterrupted motion without snagging or stiffness. Its movement stability makes it suitable for applications requiring precise sealing performance:
• Circular access ports on protective suits
• Industrial FR machinery covers
• Chemical or biological containment suit modules
• Detachable ventilation or inspection windows
• Tactical gear with circular utility panels
• Sealed storage or equipment protection systems

Designed for High-Performance Protective Sectors
    The Single O-Shape zipper supports industries where circular sealing, safety, and reliability are essential:
• Firefighting and thermal-protection gear
• Chemical, biological, and hazardous material suits
• Oil & gas industrial protective apparel
• Emergency response and decontamination systems
• Defense, tactical, and mission-critical equipment

OEM / ODM Precision Customization
We offer complete customization to match your application:
• Tape material, and color selection
• Slider type: auto-lock, semi-lock, non-lock
• Custom pullers and metal color options
• Reinforced sewing, waterproof upgrades, bonding systems

    Each zipper is produced under strict quality protocols, ensuring consistent safety performance and long-term durability.