JNF Self-Closing Spring Hinge Stainless Steel Adjustable Force 90° Hold-Open 20/40kg

Product Overview

The JNF self-closing spring hinge with 90-degree hold-open function is intended for interior doors in commercial and residential applications where controlled, automatic closing is needed. Manufactured from stainless steel, it is suitable for environments requiring corrosion resistance, such as high-traffic corridors, healthcare facilities, and modern office fit-outs. The hinge is equipped with ball bearings and supports doors up to 900 mm wide, with load capacity dependent on the number installed (2 hinges for 20 kg, 3 hinges for 40 kg).

Its adjustable closing force feature differentiates this model, allowing precise tuning for various door weights and user preferences. This flexibility helps buyers meet specific project requirements and simplifies installation across multiple door sizes, reducing the risk of improper operation. It is particularly well-suited for facility managers or contractors handling bulk door hardware procurement for commercial fit-outs and renovation projects.

Key Features

• Stainless steel construction ? corrosion-resistant for humid environments or intensive cleaning


• Adjustable closing force ? easily tune closure speed and force for diverse door types


• 90-degree hold-open ? integrated stop for cleaning, maintenance or prolonged access


• Ball bearing system ? smooth operation, reduced wear, suitable for frequent use


• Soft-closing mechanism ? ensures controlled, gentle door closure to minimize noise


• Load capacity ? supports 20 kg with 2 hinges, 40 kg with 3 hinges, for doors up to 900 mm wide

Technical Specifications

• Material: Stainless steel


• Closing Force: Adjustable


• Hold-open Angle: 90°


• Bearing Type: Ball bearing


• Maximum Door Width: 900 mm


• Load Capacity (2 hinges): 20 kg


• Load Capacity (3 hinges): 40 kg

Applications

Ideal for interior doors in office buildings, hospitals, hotels, commercial retail spaces, and residential complexes. Compatible with doors where automatic closing and 90-degree hold-open are required, including utility rooms, corridor doors, and service access. Suitable for bulk installation projects and environments demanding corrosion-resistant hardware.

Packaging & Shipping

Standard export packaging. Unit includes hinge, installation screws, and adjustment instructions.