Stainless Steel Dust Proof Strike with Plate for Entrance Steel Doors Flush Bolt-DDDP005

Stainless Steel Dust Proof Strike with Plate

A stainless steel dust proof strike with plate is a robust, two-part assembly consisting of a strike box (socket) integrated into a base plate, both manufactured from stainless steel. This design ensures durability, corrosion resistance, and seamless functionality in demanding applications.

1. Design and Construction

The unit combines a flat, rectangular base plate (e.g., 79mm × 39mm) with a raised, box-like strike protrusion (e.g., 55mm × 23.5mm). The strike features a precisely machined internal cavity designed to accommodate the door bolt with tight tolerances (typically ≤0.5mm clearance). This snug fit eliminates gaps where contaminants could enter. The base plate serves as a mounting surface, distributing mechanical stress across the door frame and providing structural stability. Installation holes are pre-drilled to align with standard screw patterns (e.g., M4 or M5 screws), simplifying attachment to wood, steel, or aluminum frames. The entire assembly is often manufactured from grade 304 or 316 stainless steel, chosen for its high tensile strength, resistance to impact deformation, and exceptional corrosion resistance—even in humid, saline, or chemically exposed environments.

2. Functionality and Sealing Mechanism

When the door closes, the bolt slides into the strike cavity, creating a mechanical seal. The tight clearance between the bolt and cavity walls blocks particulate matter, while the full enclosure prevents lateral ingress of liquids or insects. For additional protection, some designs include integrated gaskets or silicone seals around the cavity entrance. The stainless steel construction ensures the strike withstands repeated bolt engagement cycles without wear, jamming, or loss of precision. Its resistance to rust and chemical degradation makes it suitable for facilities requiring frequent sanitization, such as food processing plants or pharmaceutical labs.

3. Applications and Advantages

This strike variant is ideal for heavy-duty or industrial settings where hygiene and durability are critical. Common applications include:

• Industrial Doors: Protects machinery from dust in manufacturing plants.

• Healthcare Facilities: Maintains sterile conditions in operating rooms and labs.

• Marine and Coastal Buildings: Resists saltwater corrosion.

• Food Processing Units: Withstands frequent wash-downs and chemical cleaning.
  The base plate design enhances stability, making it suitable for high-traffic doors or environments with vibrations. Its corrosion-resistant properties ensure longevity, reducing replacement costs and maintenance downtime.

4. Installation and Compatibility

Installation involves mortising the door frame to accommodate the strike box, followed by securing the base plate with screws. The plate-mounted design simplifies alignment with existing bolt systems and provides a larger surface area for secure fastening. This strike is compatible with wooden, steel, and aluminum doors and works with standard flush bolts, mortise bolts, and deadbolts. Its utilitarian appearance prioritizes function over aesthetics, though satin or brushed finishes are available for a cleaner look.

5. Material Benefits

Stainless steel offers superior performance over alternatives like brass or zinc alloy. Its high strength-to-weight ratio prevents bending under stress, and its non-porous surface inhibits bacterial growth—a key advantage in medical or food-safe contexts. The material’s longevity ensures compliance with stringent industry standards for safety and hygiene.