Heavy-Duty Soft-Closing Automatic Door Closer – 35KG Pneumatic Adjustable Speed & Hold-Open Door Stop Hardware

Ensure effortless controlled closing and protect your home entryways with this Heavy-Duty Soft-Closing Automatic Door Closer. Specially engineered for interior wooden doors, aluminum screen doors, storm doors, and office entrances, this high-performance pneumatic door stay handles door weights up to 35kg (77 lbs). Built with an internal air-cushioned hydraulic damper, it eliminates violent door slamming caused by wind gusts or heavy usage, preserving door frames and latches while drastically reducing household noise. The integrated regulating valve screw lets you fine-tune the closing buffer speed to your exact preference—from a swift, secure latch to a gentle, whisper-quiet motion. Featuring a built-in 90-degree to 100-degree positioning stop clamp, you can easily hold the door open when carrying groceries, moving furniture, or maintaining maximum ventilation across your home.

Key Features

• 35KG (77 lbs) Heavy-Duty Load Capacity: Robust pneumatic cylinder supports interior wood, metal, composite, and screen doors up to 35kg.

• Integrated Soft-Closing Pneumatic Damper: Pneumatic air-cushioned buffer prevents slamming, reducing impact noise and extending door frame lifespan.

• Fully Adjustable Closing Speed: Precision valve adjustment screw lets you easily customize the closing resistance and buffering speed.

• Arbitrary Hold-Open Positioning Stop: Integrated slide-ring positioning lock keeps the door open at any angle from 90° to 100° for easy access.

• All-Weather Aluminum Alloy Construction: Forged from high-grade aluminum alloy with anti-corrosion coating to resist rust and mechanical wear.

• Universal Surface Installation: Compatible with both left-hand and right-hand opening doors, mounting easily onto standard door jambs and top frames.

Why Choose Our Heavy-Duty Pneumatic Door Closer

Standard spring door closers pull doors shut with uncontrollable force, causing loud, damaging slams, while cheap hydraulic units leak fluid and fail under heat changes. This pneumatic automatic door closer combines a 35kg load-bearing capacity, gentle air-buffered soft closing, custom speed regulation, and a convenient hold-open positioning stop—giving your interior doors, storm doors, office entryways, and home hardware an instant commercial-grade upgrade.

Perfect For

• Wooden bedroom, pantry, and bathroom doors requiring automatic controlled closing

• Aluminum screen doors, glass patio doors, and exterior storm doors exposed to wind drafts

• Commercial office doors, retail store entryways, and school rooms needing quiet operation

• Homes with pets or small children to prevent doors from slamming shut on fingers or remaining open unintentionally

Specifications

• Type: Pneumatic Soft-Closing Automatic Door Closer / Hydraulic Damper Stay

• Maximum Door Weight Capacity: Up to 35KG (77 lbs)

• Hold-Open Positioning Angle: 90° – 100° Adjustable Positioning Stop

• Speed Regulation: One-Stage Valve Adjustment Screw (Clockwise for slower soft-close, Counterclockwise for faster shut)

• Materials: High-Tensile Aluminum Alloy Cylinder & Stainless Steel Rod

• Handing: Universal Non-Handed (Fits Left-Hand & Right-Hand Doors)

• Ideal Uses: Interior Wooden Doors, Storm Doors, Screen Doors, Office Doors, Hallway Entrances