Overview

The Ningbo Dimon Surface-Mounted Hydraulic Soft-Close Swing Door Damper is an innovative architectural door control device designed to eliminate noisy door slams, structural frame vibrations, and pinched fingers on interior swing doors. Engineered for quick surface-mount installation without mortising or door disassembly, the mechanism mounts neatly to the top door jamb while an adjustable pin trigger mounts to the door face. As the door closes, the hydraulic damper engages the trigger within the final 15 degrees, smoothly decelerating and gently drawing the door completely shut into the frame. Sized for residential, office, hotel, and healthcare doors weighing 30 kg to 50 kg (66 – 110 lbs), available in durable matte black and anodized satin silver.

Key Features

• Controlled Hydraulic Soft-Close Action: Internal precision hydraulic cylinder captures the door in the final closing arc, softly pulling it completely into the latch without jarring bounces or loud slamming.
• Quick Non-Invasive Surface Installation: Installs directly onto existing door frames and door leaves with included mounting screws—no routing, mortising, or door leaf removal required.
• 20 mm Adjustable Trigger Pin: The door-mounted actuator features a 20 mm micro-adjustment screw mechanism to accommodate varying door-to-jamb gap clearances, weatherstripping compression, and door thicknesses.
• Anti-Pinch & Child Safety Protection: Controlled slow-closing prevents doors from rapidly whipping shut in drafts or wind gusts, protecting children, pets, and seniors from painful hand injuries.
• Rated for 30–50 kg (66–110 lbs) Doors: Optimally calibrated for standard interior solid core, hollow core, and wood-composite swing doors.
• Sleek Architectural Enclosure: Conceals all internal mechanical springs and hydraulic components inside a low-profile aluminum alloy cover that blends cleanly with modern door architecture.
• Complete Retrofit Kit: Includes main hydraulic damper unit with decorative cover, adjustable door trigger assembly with cover, alignment templates, and mounting screws.

Technical Specifications

• Product Type: Surface-Mounted Swing Door Soft-Close Buffer / Damper
• Housing Material: Architectural Aluminum Alloy & Engineering Polymers
• Internal Mechanism: High-Durability Hydraulic Cylinder & Coil Spring Assembly
• Compatible Door Weight: 30 kg – 50 kg (approx. 66 lbs – 110 lbs)
• Door Gap Adjustment: 20 mm fine-tuning range on trigger assembly
• Mounting Orientation: Top door frame header and top edge of door leaf
• Finish Options: Electrostatic Matte Black, Anodized Satin Silver
• Applicable Door Types: Interior wooden doors, hotel bedroom doors, office swing doors, aluminum-framed glass doors
• Package Contents: Damper unit, trigger actuator, decorative snap-on covers, and mounting screw set

Wholesale & OEM Capabilities

• Heavy-Duty Variant Options: Custom-calibrated damper cylinders available for heavy 50 kg – 80 kg (110 – 176 lbs) commercial fire and soundproof doors.
• Custom Architectural Finishes: Available in matte black, satin silver, satin gold, and custom RAL powder coatings for commercial project orders.
• Export Packaging: Individually boxed in retail-ready clamshell or drop-tested contractor master cartons with clear step-by-step drilling and installation templates.
• Direct B2B Supply: Direct factory pricing, low MOQ, and full container or LCL global logistics from Ningbo, China.