Overview

The Ningbo Dimon Universal Hydraulic Soft-Close Swing Door Damper is a versatile architectural door control solution engineered for both exposed surface-mounting and concealed mortise installation on interior wooden doors, hotel guest rooms, commercial offices, and healthcare facilities. Featuring an internal precision hydraulic cylinder and heavy-duty spring reset mechanism, it catches the door within the final 15 degrees of closing to gently and silently pull it shut against the frame. This dual-mount damper eliminates loud door slamming, protects door frames, and prevents painful finger pinches for doors weighing 30 kg to 50 kg (66 – 110 lbs). Available in sleek matte black and brushed satin silver finishes.

Key Features

• Dual Surface & Concealed Installation: Specially engineered chassis supports direct surface mounting (with decorative aluminum snap-on covers) or flush concealed mortising into the door frame header or top edge of the door leaf.
• Smooth Hydraulic Soft-Close Buffering: Catches the door in the final swing arc and cushions momentum, silently drawing the door completely latched without rebound, vibration, or slamming.
• 20 mm Adjustable Trigger Actuator: The door-mounted trigger block features a 20 mm micro-adjustable pin to adapt to various door-to-frame gaps and weatherstripping depths.
• Universal Non-Handed Operation: Operates smoothly on left-hand or right-hand swinging doors without modification or handed hardware requirements.
• High-Efficiency Automatic Reset: Once released, the damper catch automatically resets into the open position, ready to engage on the next door closure.
• Calibrated for 30–50 kg (66–110 lbs) Doors: Optimally tensioned for residential interior doors, hotel passage doors, hollow-core and solid-core wooden doors.
• Complete All-in-One Hardware Kit: Supplied with hydraulic damper core, decorative casing covers, adjustable trigger unit, alignment template, and mounting screws.

Technical Specifications

• Product Type: Surface & Concealed Hydraulic Soft-Close Swing Door Damper
• Body Material: Precision Extruded Aluminum Alloy & Heavy-Duty Engineering Polymers
• Internal Mechanism: High-Pressure Hydraulic Cylinder & Steel Torsion Spring
• Door Weight Range: 30 kg – 50 kg (approx. 66 lbs – 110 lbs)
• Installation Method: Dual-Mode (Exposed Surface Mount or Concealed Recessed Mortise)
• Fine-Tuning Range: 20 mm adjustable trigger length
• Handing: Universal Non-Handed (Left or Right Hand Doors)
• Color Finishes: Matte Black, Brushed Satin Silver
• Package Contents: Damper core, decorative faceplates, adjustable door trigger, and fastening screw pack

Wholesale & OEM Capabilities

• Custom Calibrated Capacities: Specialized heavy-duty damper mechanisms available for commercial fire doors up to 80 kg (176 lbs).
• Custom Architectural Finishes: Available in matte black, satin silver, satin gold, dark bronze, or custom RAL powder coatings for contract projects.
• Professional Export Packaging: Individually boxed with high-density foam inserts, complete with multilingual contractor installation and cutout templates.
• Direct B2B Supply: Factory-direct wholesale pricing, low MOQ, and full container or LCL ocean freight from Ningbo, China.