ANSI Grade Fire Rated Heavy Duty Door Closer with Back-Check Function

ANSI Grade Fire Rated Heavy Duty Door Closer with Back-Check Function. Heavy Duty Capacity: Supports doors up to 1400mm width and 45-150kg weight for high traffic areas. ANSI Fire Rated: Meets American Standard for fire safety with durable aluminum alloy construction. Back-Check Function: Prevents door damage from forced opening with integrated back-check mechanism. High Durability: Passed rigorous durability test of 1,500,000 cycles for long-term reliability. Customizable Colors: Available in multiple finishes like Silver, Gold, Brown, and custom colors upon request. Versatile Application: Suitable for left and right-hand doors in offices, hotels, hospitals, and schools.