Exidor 300 Silver Box Keeper
In stock
Delivery Information
| Delivery Time Frame | Delivery Information |
| Next Working Day By 1PM | When an order is placed by 3pm for next working day on certain items |
| Standard Delivery | Usually delivered in 2 to 4 working days |
| Delivery Charges | |
| UK Mainland | Prices start at £3.95 for very small items, £6.50 for small, £9.50 for medium and £20 for large/long items |
| Scottish Highlands & Islands, Northern Ireland & Ireland | Prices from £30, please see our delivery page for more info. |
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Description
Exidor 300 Silver Box Keeper
Ensuring the structural integrity of your doors requires premium hardware that stands up to daily wear. The Exidor 300 Silver Box Keeper provides a robust solution for flush fitting doors and frames, specifically engineered for double rebated configurations. By maintaining a precise alignment between the locking mechanism and the door frame, this component serves as the backbone of your security setup.
When selecting hardware for commercial or industrial environments, the quality of the strike plate or keeper is often overlooked. However, this accessory plays a vital role in preventing unauthorised access and ensuring that your panic hardware or deadlocking systems engage correctly every single time. It is crafted with precision to meet the rigorous demands of busy high traffic zones.
Understanding the Mechanical Physics
The operational success of any door security system relies on the distribution of force when the door is closed or forced. When a door is slammed or pushed against its latch, a significant amount of kinetic energy is transferred directly into the keeper and the frame. This equipment is designed to absorb this energy without bending, warping, or sustaining structural fatigue over time.
The metallurgical composition of this unit ensures high tensile strength. This prevents the metal from flexing under the constant pressure exerted by the door seal or the latch bolt. By maintaining its geometric shape, it ensures that the latch bolt remains securely seated, which in turn keeps the door fire-rated and secure. This is not just a piece of metal, it is a critical interface that manages the mechanical loads of your building access points.
Step-by-Step Operational Workflow
Interaction with the door system is seamless when high quality components are installed. The following sequence explains how the user and the door interact with this equipment.
- The user approaches the door and engages the panic bar or latch mechanism which begins the movement of the door toward the frame.
- As the door reaches its final closing position, the latch bolt contacts the ramp of this accessory and begins to retract slightly under spring tension.
- The internal spring mechanism of the latch pushes the bolt forward once it passes the leading edge of the keeper.
- The bolt enters the hollow cavity of the unit, creating a solid engagement that prevents the door from moving or swinging open under pressure.
- The user can then be confident that the door is flush and properly secured against the frame, maintaining the necessary seal for environmental control.
Ergonomic Health, Safety and Compliance
In a commercial setting, safety is the primary concern for facility managers. If a door does not latch correctly, it can pose a significant danger during fire events. This product is engineered to ensure that doors remain fully closed, which helps contain smoke and flames in the event of an emergency. This level of reliability is essential for maintaining compliance with building regulations and health and safety standards.
Furthermore, using high quality, properly aligned hardware reduces physical strain on the door system and the end user. If a keeper is poorly made or aligned, a user may need to pull or push the door excessively hard to get it to latch. By installing this precision component, you ensure a smooth latching action, which helps prevent repetitive strain and reduces the likelihood of accidental door damage caused by heavy usage.
Commercial ROI and Long Term Value
Investing in superior hardware is a sound strategy for long term cost control. While budget hardware might appear cheaper initially, the hidden costs of failure are substantial. Low quality keepers often wear out, leading to latch failure, misaligned doors, and security vulnerabilities that require emergency maintenance callouts.
By choosing this item, you benefit from reduced maintenance intervals. The durability of the finish and the strength of the metal mean that it will withstand the daily cycle of opening and closing for years without needing replacement. Protecting your facility from unauthorised entry and ensuring that fire safety hardware functions as intended provides a level of risk mitigation that pays for itself many times over throughout the lifespan of the door assembly.
Suitable Materials and Key Applications
This model is specifically intended for use on double rebated doors where the flush fitting design is necessary to maintain a professional and safe environment. It is compatible with a variety of door materials, including solid timber, metal, and composite doors often found in office blocks, retail units, and public institutions.
- The unit is perfectly suited for use in schools where heavy traffic requires durable door hardware.
- It functions effectively in medical facilities where maintaining a flush seal between rooms is necessary for hygiene and noise control.
- You can reliably install this in commercial warehouses where heavy usage occurs on a daily basis.
- The silver finish integrates seamlessly with most modern door hardware styles to maintain a cohesive professional aesthetic.
Choosing the right hardware is essential for long-term security. Our team at Doorfit is dedicated to providing only the highest quality components that ensure your premises remain safe, compliant, and operational at all times. Please verify your door measurements before purchase to ensure this accessory is the perfect fit for your specific installation requirements.
Technical Specifications
This table outlines the core technical data associated with the Exidor 300 Silver Box Keeper to help you verify compatibility with your existing systems.
| Feature | Specification |
|---|---|
| Product Name | Exidor 300 Silver Box Keeper |
| Finish | Silver |
| Door Type | Flush fitting doors on double rebated frames |
| Material | Hardened steel alloy |
| Application | Commercial and industrial fire doors |
| Durability | High resistance to mechanical stress and force |
| Compatibility | Standard Exidor panic and emergency hardware |
Maintenance and Care
To ensure this model continues to perform at its peak, we recommend a simple inspection schedule. Every six months, perform a quick check of the mounting screws to ensure they remain tight and secure. You should also check for any debris that may have collected in the hollow chamber of the box, as dust or grit can interfere with the smooth travel of the latch bolt over time.
A simple wipe down with a non-abrasive cloth is usually sufficient to maintain the appearance of the silver finish. Avoid using harsh chemical cleaners that could degrade the protective coating or compromise the integrity of the base metal. By following these simple steps, you can extend the operational life of your hardware and ensure maximum security for your facility.
If you have any questions regarding the installation process or compatibility with your current door setup, our expert team is here to provide guidance. Maintaining high standards of security should be simple, and with this robust keeper, you are investing in a product that delivers reliability every time the door closes.
Specification
| Manufacturer | Exidor |
|---|---|
| Finish | Silver |
| Guarantee | 10 Year |


