Heavy Duty Commercial Door Closer Grade 1 – DRIWON DN-8220, Hydraulic Automatic Overhead Self Closer for High Traffic, Adjustable 1–6, 3-Hour Fire Rated for Metal & Interior Wood Doors

Heavy Duty Commercial Door Closer – DRIWON Model DN-8220The DN-8220 heavy duty door closer is designed for durability, performance, and smooth operation in demanding environments. This commercial door closer heavy duty model features a smart, streamlined overhead design ideal for offices, retail stores, factories, and other high-traffic commercial applications. It is also well suited for residential interior doors where an automatic door closer helps prevent slamming or doors being left open.Built as a Grade 1 hydraulic auto door-closer, the DN-8220 offers fully adjustable control with power spring size 1–6. Closing speed, delayed action, and latch speed can be fine-tuned to accommodate different door weights and usage conditions. This makes it a trusted heavy duty commercial door closer for both new construction and replacement projects.Certified with UL 3-Hour Fire Resistance when installed on metal or fire-rated wood doors, this commercial door self closer meets strict safety and building standards. The strong yet lightweight aluminum body ensures long-term reliability in continuous-use environments.The popular overhead automatic door closer design includes mounting screws and a parallel arm bracket for easy installation. Finished in a clean silver color, it blends seamlessly with most commercial and residential décor while delivering consistent, reliable self-closing performance.

• ✅ HEAVY DUTY COMMERCIAL DOOR CLOSER (GRADE 1) Designed for high-traffic environments, the DN-8220 is a heavy duty commercial door closer offering smooth hydraulic operation and long-lasting durability. Ideal for offices, retail stores, healthcare facilities, factories, and interior residential doors.
• ✅ FULLY ADJUSTABLE OVERHEAD AUTOMATIC CLOSING Popular overhead design for metal and wood doors with adjustable power spring size 1–6. Customize closing speed, delayed action, latch speed, and backcheck to ensure safe, controlled, and reliable automatic door closing.
• ✅ ANSI GRADE 1 & 3-HOUR FIRE RATED Tested to ANSI/BHMA A156.4 Grade 1 standards for up to 2 million cycles. UL certified 3-hour fire resistance when installed on fire-rated wood or metal doors, helping meet commercial building and fire safety requirements.
• ✅ VERSATILE FIT & EASY INSTALLATION Includes mounting screws and parallel arm bracket for fast installation. Supports door weights from 44–440 lbs and door widths from 23"–59", making it a reliable commercial door self closer for new construction or replacement projects.
• ✅ BUILT FOR HIGH-TRAFFIC PERFORMANCE Constructed from strong, lightweight aluminum for long-term reliability and low maintenance. Preferred by builders and facility managers for businesses, offices, healthcare, retail, and multi-door installations. Clean silver and matte black finish matches most décor styles.