D&D Best Flush Bolt Brass Dust Proof Strike for Outside Steel Doors-DDDP003

Product advantages

As the protective core of the door control system, this brass dust proof strike achieves a breakthrough in functionality. Its spring plunger structure has an automatic reset function, which immediately closes the hole after each retraction of the pin, avoiding mechanical resistance caused by dust accumulation and significantly reducing maintenance frequency. The design has been tested in the laboratory to extend the service life of the latch by more than 30%, especially suitable for commercial places with high-frequency opening and closing, such as hotel and office building entrance doors.

In terms of material, the brass matrix is coated with a coating, which has both hardness and weather resistance, which can resist harsh environmental erosion such as moisture and salt spray, and avoid structural loosening caused by rust. Compared with plastic or ordinary alloy products, its high-temperature resistance characteristics (melting point of 660°C) can also cope with extreme conditions in sudden fire situations, and meet the flame resistance requirements of building fire protection codes for door fittings.

In terms of installation adaptability, the compact size of 29mm×19mm allows it to be embedded in small door frame spaces without damaging the overall structure of the door body. Stainless steel screws and positioning templates are provided to ensure precise alignment. According to user feedback, the installation can be completed within 10 minutes by a single person, significantly saving labor costs.

                                                                                                                                                                                                                                      

Application of the product

This brass dust proof strike is widely used in various door control scenarios and has become a standard configuration to improve the reliability of the door body system. In the residential sector, its dustproof features maintain a clean interior, especially for exterior door systems in humid coastal areas or areas where dust is common. When used with automatic latches, it can form a seamless dustproof barrier to prevent pet hair and fine garbage from entering the latch track.

In commercial spaces, this product becomes an essential component for door bodies in high-traffic areas. For example, the passage door of the hospital operating room needs to be opened and closed frequently, and the dust proof can prevent the spread of medical waste or microorganisms through the pores of the pins; Data center room doors rely on their sealing to block potential dust threats to delicate equipment. In addition, scenarios such as educational institutions and hotel rooms can also deploy this product to reduce cleaning and maintenance frequency and improve operational efficiency.

In industrial settings, dust filters are combined with heavy-duty latches to form a durable door control solution. Food processing plants, pharmaceutical workshops and other places that require strict dust control can meet GMP certification standards through the installation of this product. Its brass material also meets the special requirements of chemical parks for equipment corrosion resistance.

                                                                                                                                                                                                                                      

Product installation

Before installation, you need to prepare an electric drill, Φ3mm drill bit, Phillips screwdriver and level. First, place the dust proof strike in the preset position at the bottom of the door frame, making sure that the plunger opening is aligned with the latch head. Use a positioning template to mark the screw hole locations, with a recommended hole depth of 15mm to ensure fixed strength.

After drilling, clean up the debris, put the dust trap close to the surface of the door frame, and preliminarily fix it with stainless steel screws (supplied). The angle is adjusted by the level to ensure that the plunger movement trajectory is vertical and unbiased. After fully tightening the screws, manually operate the pins several times to verify that the plunger can be raised and lowered smoothly without stuttering.

If the door frame is made of wood, woodworking glue needs to be injected into the screw hole to enhance the nail grip; For metal door frames, it is recommended to use rivets instead of screws to improve vibration resistance. After installation, you can use a soft brush to clean the remaining metal debris around the plunger to avoid abnormal noises in the initial use stage. Check the plunger rebound force regularly (every 6 months), if spring fatigue is found, it can be fine-tuned by adjusting the screws without replacing the whole machine.

Brass Dust Proof Strike