Introduction of ABS Hinged Box

# Hinged-Lid Waterproof Enclosure – IP67 Rated with Stainless Steel Latches & Integrated Gasket (No Lid-Stay Function)

The **Hinged-Lid Waterproof Enclosure** is a protective housing specifically engineered for harsh environments. Featuring a hinged lid and a precision sealing system, it provides reliable water and dust protection for internal electronic devices, electrical components, or precision instruments. Key features of this product include an **IP67 protection rating**, **stainless steel latches**, and an **integrated liquid-dispensed gasket**; it is explicitly designed **without a lid-stay (hold-open) function**, serving as an industrial-grade waterproof solution where maximum protection is the absolute priority.

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## Core Functionality: IP67 Dust and Water Protection

The IP rating is an international standard used to measure the protective capabilities of an enclosure. This hinged-lid waterproof enclosure achieves an IP67 rating, defined as follows:

– **Dust Protection (IP6X):** **Completely dust-proof.** It ensures that internal components remain free from dust ingress—even in extreme environments such as sandstorms—achieving a “dust-tight” classification.
– **Water Protection (IPX7):** **Withstands short-term immersion.** The enclosure can endure temporary submersion in water at a depth of 1 meter for up to 30 minutes without allowing water ingress. This rating significantly exceeds standard splash-proof (IPX4) or jet-proof (IPX5/6) levels, making it ideal for use in outdoor, underground, or humid industrial environments.

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## Core Structural Design

### Enclosure Body (Base/Mounting Unit)

The enclosure body is injection-molded using high-strength engineering plastics (such as ABS, Polycarbonate [PC], or Flame-Retardant ABS), resulting in a robust structure that offers excellent impact resistance and anti-aging properties. The interior features pre-molded mounting bosses or slots, allowing for the convenient installation of circuit boards, terminal blocks, or DIN rails. **For wall mounting, users may utilize optional external mounting brackets or secure the unit directly via screw fixation using the designated mounting holes located on the base.**

### Enclosure Lid (Hinged Cover/Top Cover)

The lid connects to the enclosure body via precision hinges, allowing for a wide opening angle (typically >90°). This design facilitates easy access for the operation and maintenance of the internal equipment. **This latch-closure waterproof enclosure does not feature a lid-stay mechanism;** upon opening, the lid hangs freely and must be manually supported during operation. This design simplifies the mechanical structure and reduces the number of moving parts, thereby enhancing long-term reliability and waterproof integrity.

### Sealing Component – ​​Integrated Liquid-Dispensed Gasket

This component is the key to achieving IP67-level protection. The gasket is formed directly within the lid’s sealing groove using a precision liquid-dispensing process, creating a seamless, integral bond with the enclosure body. Compared to traditional insert-style gaskets, this integrated liquid-dispensed design offers the following advantages:

– **Superior Sealing Reliability:** Eliminates the risks of gasket displacement, shrinkage due to aging, or dislodgment after prolonged use.
– **Perfect Fit:** The liquid application process ensures a perfect contour match with the sealing groove, guaranteeing uniform compression when the lid is closed—thereby delivering true immersion-proof protection.

### Locking Mechanism – Stainless Steel Latches

The **latches** constitute the core locking mechanism of this product. Constructed from corrosion-resistant **304 or 316 stainless steel**, they ensure that the enclosure remains rust-free and free from deformation during long-term use in humid, salt-spray, or chemically aggressive environments. Typically designed as toggle-style clasps or screw-tightened fasteners, these latches provide a strong, uniform clamping force when closed, effectively compressing the gasket and preventing accidental lid opening caused by vibration or accidental impact.

### No Pre-Punched Knockouts; Field Modification Supported

To preserve the structural integrity of the enclosure and maximize its sealing potential at the point of manufacture, this latch-closure waterproof box is shipped without pre-punched knockouts. **The enclosure is designed to allow users to easily cut or drill holes on-site** to create custom-sized entry points for cables or conduits. To maintain the IP67 protection rating after creating these openings, users must install appropriate IP67-rated cable glands or conduit fittings.

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## Other Key Design Features

### Optional Wall-Mount Brackets

Reliable wall mounting can be achieved using the integrated mounting points located inside the enclosure base; alternatively, optional **external mounting brackets** are available to provide a more secure installation and greater operational convenience. ### Optional Transparent Window

The lid can be manufactured from high-transparency polycarbonate (PC), allowing for visual inspection of internal indicator lights, gauges, or status indicators without the need to open the enclosure—thereby minimizing unnecessary wear and tear on the sealing system.

### UV-Resistant and Flame-Retardant Materials

The enclosure material is infused with UV stabilizers, making it suitable for prolonged outdoor exposure. It also complies with UL94 V-0 or V-2 flame-retardancy ratings, ensuring electrical safety.

### Flexible Internal Mounting

The internal design accommodates various mounting methods—such as PCB mounting bosses, DIN rail slots, or equipment mounting plates—making it suitable for housing a wide range of devices, including switches, sockets, terminal blocks, sensors, and controllers.

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## Key Application Scenarios

Thanks to its high IP67 protection rating and corrosion-resistant stainless steel latches, this latch-lid waterproof enclosure is particularly well-suited for the following harsh environments:

– **Outdoor Industrial Equipment:** Serves as a junction box, sensor housing, or outdoor LED power supply enclosure, providing protection against heavy rain, melting snow, and even brief periods of submersion.
– **Marine and Port Facilities:** The stainless steel latches withstand highly corrosive salt-spray environments, protecting electrical connections and control equipment on ships, docks, and offshore platforms.
– **Underground Utility Tunnels and Infrastructure:** Prevents groundwater ingress, ensuring the safety and reliability of power and communication connections within subway tunnels, cable vaults, and manholes.
– **Food Processing and Pharmaceutical Facilities:** Withstands frequent high-pressure washdowns and rigorous sanitary cleaning procedures, meeting strict hygiene requirements.
– **Outdoor Surveillance and Communication:** Provides all-weather protection for security cameras, wireless access points, fiber optic terminals, and remote RF units.

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## Note on the Absence of a Lid-Stay Mechanism

This latch-lid waterproof enclosure is intentionally designed **without a lid-stay mechanism** (i.e., it does not feature a mechanism to hold the lid open). Consequently, the lid cannot remain fixed at a specific angle on its own. While this requires the user to manually support the lid when performing two-handed operations, this design simplifies the hinge mechanism, reduces the number of moving parts, and enhances the overall long-term mechanical reliability and sealing integrity of the enclosure. If your application requires hands-free operation, you may wish to consider using a mounting bracket capable of supporting the lid.