Heavy Duty Commercial Door Closer, Grade 1 Hydraulic Self Closing Door Closer, Adjustable Size 1-6, UL 10C Fire Rated, Standard Arm with Backcheck, Die Cast Aluminum Body, Doors up to 330 lbs

Improve safety, accessibility, and door control with this Heavy Duty Commercial Hydraulic Door Closer. Designed to meet ANSI/BHMA A156.4 Grade 1 requirements, this professional-grade door closer provides smooth and dependable performance in demanding commercial environments. Constructed from durable die cast aluminum, the closer combines strength with reduced weight while maintaining excellent long-term reliability. The adjustable Size 1-6 spring force allows installation on doors weighing up to 330 lbs (150 kg) and up to 63 inches wide, making it suitable for a broad range of commercial applications. Independent hydraulic valves allow precise adjustment of both closing and latching speeds, ensuring smooth and quiet operation. The integrated backcheck function helps protect doors and frames from damage caused by excessive opening force, reducing maintenance costs and extending service life. Certified to UL 10C standards and approved for use on fire and smoke doors with up to 3 hours of fire resistance, this closer is ideal for offices, schools, healthcare facilities, apartment buildings, retail centers, hotels, and warehouses. With reliable operation in temperatures from -40°C to +60°C and corrosion resistance testing up to 96 hours, it is built to perform under demanding conditions. Whether used in new construction or replacement projects, this commercial door closer delivers professional-grade durability, safety, and performance. Engineered to ANSI/BHMA A156.4 Grade 1 standards for dependable operation in high-traffic commercial environments. Suitable for offices, schools, hospitals, retail stores, apartment complexes, hotels, warehouses, and public facilities requiring reliable door control. Features adjustable spring power to accommodate a variety of door sizes and applications. Supports doors weighing up to 330 lbs (150 kg) and widths up to 63 inches (1600 mm), providing flexibility for commercial and institutional installations. Independent adjustment valves allow precise control of closing speed from 180° to 15° and latching speed from 15° to 0°. Built-in backcheck function helps prevent damage caused by forceful door opening and extends hardware lifespan. Certified for use on fire-rated and smoke-control doors with up to 3 hours of fire resistance. Provides dependable self-closing performance to support building safety and fire protection requirements. Manufactured from high-strength die cast aluminum for excellent durability while maintaining a lighter weight than traditional cast iron models. Tested for corrosion resistance up to 96 hours and designed for long service life. Operates effectively in temperatures ranging from -40°C to +60°C. Includes cover and standard arm assembly for professional installation on left-hand or right-hand commercial doors.