Automatic door closer household sliding door closer hydraulic buffer device fire door closer artifact fire door

◆ Automatic door closing with hydraulic buffer ensures doors close smoothly and silently, preventing hand pinching ◆ Adjustable two-stage speed regulation for flexible and safe door closing ◆ High-quality aluminum alloy housing is rust-proof, wear-resistant, and corrosion-resistant for long-lasting durability ◆ Adjustable elastic force and length of rocker arm for easy installation even if the door frame and door leaf are not in the same plane (difference less than 5cm) ◆ Electro-coating spray paint, high-carbon steel gear, and die-cast housing guarantee durability and reliable performance ◆ Silent closing and strong connection with sturdy screw and rivet assembly, suitable for all ages ◆ Square anti-slip buckle enhances connection firmness between rod and main body ◆ Suitable for multiple doors: community doors, wooden doors, room doors, steel doors, fire doors, and more

Material: Aluminum alloy Color: Silver Applicable door weight: 25-150KG Suitable door width: within 900 mm, within 1100 mm, within 1200 mm Door closing speed: 2 stages (seconds) Locking force: 25-45, 45-60, 65-85 Application scenarios: Wooden doors, aluminum alloy doors, room doors, fire doors Scope of application: Community doors, wooden doors, steel doors Surface finish: Electro-coating spray paint Gear material: High-carbon steel Housing: Die-cast aluminum Adjustment: Two-way hydraulic speed regulation, adjustable telescopic arm Installation: Suitable for doors and frames that are not in the same plane (distance error within 5cm) Connection: Square anti-slip buckle, strong screws, and sturdy rivets Operation: Smooth, silent, and labor-saving automatic door closing