Overview

The Heavy-Duty Concealed Hydraulic Floor Spring and Pivot Door Closer delivers commercial-grade, self-closing functionality without the need to cut, trench, or excavate the subfloor. Engineered to mount seamlessly inside the bottom rail of wooden doors, aluminum-framed glass doors, or commercial metal doors, this non-mortise floor closer preserves delicate floor finishes while supporting door panels up to 75 kg (165 lbs). Featuring an integrated 90-degree hold-open positioning detent and dual-valve independent speed regulation, it provides quiet, controlled swinging motion for modern architectural interiors.

Key Features

• No-Dig Non-Mortise Surface Installation: Eliminates concrete cutting, floor trenching, and structural floor damage. Only a compact 10 mm low-profile anchor plate mounts directly to the finished floor surface.
• Concealed Bottom-Rail Integration: Compact 160 mm x 34 mm x 44 mm hydraulic closer body installs completely out of sight inside the door's lower frame for a clean, minimalist aesthetic.
• Two-Stage Independent Speed Adjustment: Dual hydraulic control valves allow separate, precise adjustment of primary swinging speed and secondary latching closing speed to eliminate door slamming.
• 90° Hold-Open Detent: Automatically holds the door open at 90 degrees for convenient passage and ventilation; smoothly self-closes with controlled hydraulic damping when closed beyond 85 degrees.
• 75kg (165 lbs) High Load Capacity: Reinforced internal springs and heavy-duty pivot bearings reliably support residential and light commercial doors.
• Complete Pivot Assembly Included: Supplied with an adjustable top retractable pivot hinge, lower hydraulic pivot closer, slim floor anchor plate with decorative trim cover, and heavy-duty expansion anchor hardware.

Technical Specifications

• Product Type: Concealed Floor Spring / Hydraulic Pivot Door Closer
• Maximum Door Weight: 75 kg (165 lbs)
• Closer Body Dimensions: 160 mm L x 34 mm W x 44 mm H (6.3" x 1.34" x 1.73")
• Floor Plate Dimensions: 110 mm L x 10 mm H (4.33" x 0.39")
• Floor Clearance Gap: 6 mm (0.24")
• Speed Regulation: Two independent valves (1: Closing speed, 2: Latching speed)
• Hold-Open Angle: 90° positioning detent
• Applicable Door Types: Solid wood doors, aluminum-framed glass doors, steel/composite doors
• Finishes Available: Matte Black / Brushed Silver
• Package Includes: 1x Concealed Hydraulic Closer Body, 1x Top Retractable Pivot Hinge, 1x Floor Pivot Base Plate with Cover, 4x Heavy-Duty Sleeve Expansion Bolts, 1x Hex Wrench

Wholesale & OEM Capabilities

Ningbo Dimon Metal Products Co.,Ltd is an established architectural door hardware manufacturer in Ningbo, China, supplying commercial hardware distributors, door fabricators, and building contractors worldwide:

• Heavy-Duty Customizations: Custom engineering available for higher capacity ratings (100 kg, 120 kg), non-hold-open versions, or customized pivot offset dimensions.
• Architectural Finishes: Standard Matte Black and Brushed Stainless Silver; custom PVD Satin Brass, Oil-Rubbed Bronze, and Rose Gold available for volume orders.
• Export Packaging: Protective high-density molded foam inserts within drop-test approved corrugated cartons, complete with contractor installation templates and retail barcoding.
• B2B Logistics: Fast sample turnaround, low MOQ verification, and containerized OEM/ODM supply chains.