Spring Hinges

Spring hinges use an integrated coil spring to automatically return a door or panel to the closed position after opening — providing passive, maintenance-free self-closing action for electrical cabinets, safety enclosures, fire-rated doors, and machine guarding. HTAN’s industrial spring hinge range is manufactured with ISO 9001-certified quality and full OEM/ODM customization for global customers.

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Key Features

Passive self-closing: Door closes automatically without operator action — reduces accidental open-door risk.
Adjustable closing force: Tension-adjustable models allow fine-tuning to door weight.
High cycle life: Industrial-grade spring wire rated for a minimum of 50,000 open/close cycles.
Single and double action: Standard one-way and bi-directional configurations available.

Key Applications

Electrical Safety Enclosures: Self-closing panels on live electrical equipment to reduce exposure risk.
Fire-Rated Doors: Passive closing mechanism required by fire safety regulations and building codes.
Industrial Gates & Guards: Machine guarding doors that must close passively for operator safety.

Frequently Asked Questions

Can spring tension be adjusted after installation?

Yes — on adjustable models. Tension is set using the adjustment slot on the barrel. Custom tension is available for OEM orders specifying exact closing force requirements.

What is the cycle life of your spring hinges?

HTAN spring hinges are tested to a minimum of 50,000 open/close cycles under rated load. Extended cycle life specifications are available for high-frequency applications.

Are single-action and double-action spring hinges available?

Yes. Single-action hinges close in one direction only. Double-action (saloon door) hinges return to center from both directions. Specify your requirement when ordering.