Overview

The Ningbo Dimon Commercial Hydraulic Overhead Door Closer is a precision-engineered automatic door control solution designed for narrow-stile aluminum doors, storefront entries, commercial offices, and interior residential doors weighing 45 kg to 65 kg (99 – 143 lbs). Featuring a high-strength cast aluminum alloy square housing with dual independent regulating valves, it provides smooth hydraulic buffering, quiet operation, and adjustable closing and latching speeds. Available in two distinct arm configurations: a modern low-profile slide track channel arm with customizable hold-open angle stops (Model X-093), and a heavy-duty articulated scissor arm (Model K-065).

Key Features

• Two Versatile Arm Configurations:
  • Slide Track Channel Arm (No. 1): Compact concealed guide rail eliminates protruding scissor arms for a sleek, contemporary appearance and features an adjustable slide block for customizable hold-open angles.
  • Standard Articulated Scissor Arm (No. 2): Time-tested heavy-duty folding linkage arm providing powerful mechanical leverage for standard commercial door swinging.
• Precision Two-Speed Hydraulic Regulation: Independent dual control valves allow separate calibration of the primary closing sweep speed (180° to 15°) and final latching speed (15° to 0°) to prevent slamming.
• Heavy-Duty Cast Aluminum Body: High-density die-cast aluminum alloy housing houses a heat-treated rack-and-pinion transmission immersed in high-grade anti-freeze hydraulic fluid for reliable -30°C to 50°C temperature stability.
• Engineered for 45–65 kg (99–143 lbs) Doors: Optimally tuned for commercial entrance doors and interior passages up to 900 mm (35.4") wide.
• Narrow Stile & Aluminum Channel Compatibility: Standardized (52+52) x 39 mm mounting footprint mounts cleanly onto aluminum storefront frames, hollow metal doors, and wooden entryways.
• Quiet Hydraulic Buffering: Eliminates noisy slamming, draft-induced banging, and wind blow-open while prolonging the service life of locks and door frames.

Technical Specifications

• Product Type: Surface-Mounted Hydraulic Overhead Door Closer
• Housing Material: Die-Cast Aluminum Alloy (Silver Anodized / Satin Finish)
• Door Weight Capacity: 45 kg – 65 kg (approx. 99 lbs – 143 lbs)
• Recommended Door Width: 600 mm – 900 mm (approx. 23.6" – 35.4")
• Mounting Hole Spacing: (52 + 52) mm x 39 mm
• Arm Variants:
  • Variant No. 1: Model X-093 Low-Profile Slide Track Channel Arm with Hold-Open Stop
  • Variant No. 2: Model K-065 Standard Articulated Scissor Arm
• Speed Adjustment: Dual Independent Valves (Closing Speed & Latching Speed)
• Temperature Range: -30°C to 50°C (All-Weather Anti-Freezing Hydraulic Oil)
• Suitable Doors: Aluminum commercial doors, storefront doors, hollow metal fire doors, wood interior doors
• Hardware Included: Mounting screws, arm attachment hardware, and spindle dust cap

Wholesale & OEM Capabilities

• Custom Architectural Finishes: Standard satin silver, matte black, dark bronze, or custom RAL powder colors for architectural hardware packages.
• Custom Branding & Packaging: Laser-etched private labeling, drop-tested master export cartons, and multilingual contractor installation templates.
• Direct B2B Supply: Factory-direct wholesale pricing, low MOQ, and full container or LCL ocean freight from Ningbo, China.