The NRH 8904-64 is a heavy-duty, precision die-cast hinge engineered to provide reliable, smooth, and durable pivoting for cabinet doors and panels. As detailed in the provided product image, it is constructed entirely from 304 Stainless Steel and features a polished finish. Core product specifications confirm a solid weight of 161g and a load capacity of 18kg per individual hinge. The design incorporates clear engineering data, including critical mounting dimensions, to ensure proper integration and performance.
Core Specifications (from product image):
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Material: 304 Stainless Steel
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Finish: Polished
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Product Weight: 161g
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Load Capacity (Single Hinge): 18kg
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Key Dimensions: Total Width: 64.5mm; Leaf Width: 35.7mm; Hole Spacing: 54.5mm; Mounting Holes: 6 x Countersunk holes (Ø6mm).
Primary Application: Where is it Used?
This hinge is designed for medium-duty enclosures, doors, and panels that require reliable operation under load, frequent cycling, and long-term durability in various environments.
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Industrial Chassis & Cabinets: Doors on network server racks, industrial control boxes, and power distribution panels, providing stable and smooth rotational support.
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High-End Tool & Equipment Cases: Lid connections for precision instrument cases, professional tool carts, and flight cases. The 304 stainless steel construction withstands demanding conditions.
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Commercial Equipment & Furniture: Hinges for high-end appliance housings, commercial display cabinets, and heavy-duty storage furniture.
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Outdoor & Wash-down Environments: Enclosures for communication equipment, marine applications, or food processing equipment where superior rust and corrosion resistance is mandatory.
Core Positioning: A robust, durable, and aesthetically refined die-cast hinge for medium-load applications.
How It Works: Principle of Operation
The hinge functions on a fundamental pivot mechanism, enabling stable door opening and closing through precise mechanical construction.
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Mounting: The two leaves (plates with mounting holes) are fastened with screws to the door and the cabinet frame, respectively. The provided countersunk holes allow for a flush, non-interfering installation.
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Pivoting Action: The two leaves are connected by a central pivot pin. When force is applied to the door, the leaves rotate relative to each other around this shared pin, enabling the door to open (swing outward) and close (swing inward).
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Load Bearing: The weight of the door and operational forces are transferred through the hinge leaves to the pivot pin and then to the cabinet’s mounting points. The 304 Stainless Steel material and die-cast construction ensure the hinge reliably bears these loads without deformation or failure.
Core Features and Advantages
Based on the provided specifications, the core advantages of the NRH 8904-64 are:
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Superior Material & Corrosion Resistance: Constructed from 304 Stainless Steel, offering exceptional resistance to rust, corrosion, and chemicals. This makes it ideal for humid, outdoor, or wash-down environments where long service life is critical. The die-cast process ensures a dense, high-strength structure with excellent dimensional accuracy and a clean appearance.
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Defined Load-Bearing Performance: A clear 18kg load capacity per hinge provides a reliable benchmark. The noted reference value for longitudinal installation of two hinges (5.8) is a critical engineering parameter. It indicates that the combined load capacity of two hinges mounted along the door’s height is not a simple sum (18kg x 2) but must account for lever arms and door weight distribution. This value underscores the importance of proper engineering assessment for multi-hinge installations.
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Precision Engineering & Installation-Ready Design: The polished finish provides a bright, easy-to-clean surface. Countersunk mounting holes (Ø6mm) facilitate installation with standard hardware for a flush result. Detailed dimensional drawings (e.g., 64.5mm width, 54.5mm hole spacing) allow for precise integration during the design phase, ensuring smooth operation post-installation.
Note: The product data is for reference to aid selection and integration. For final production or critical applications, obtaining a physical sample for testing and validation against your specific requirements is essential.
