Maco 800mm Offset Window Lock Espagnolette 20mm Backset MA57154
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
Maco 800mm Offset Window Lock Espagnolette 20mm Backset MA57154
Securing your property begins with the integrity of your window systems. The Maco 800mm Offset Window Lock Espagnolette 20mm Backset MA57154 provides a high performance locking solution designed for durability and ease of use. Whether you are upgrading old hardware or installing new windows, this component ensures your property remains safe and weather tight.
Engineered for versatility, this mechanism is compatible with side hung and top hung window applications. It is crafted to meet the rigorous demands of modern construction, offering reliable service for PVCu, aluminium, and timber frames. By choosing this hardware, you invest in a product that combines smooth operation with robust structural protection.
Advanced Mechanical Engineering and Physics
The operational efficiency of this device relies on precise mechanical principles. When you turn the window handle, the gear mechanism translates rotational torque into linear movement along the espagnolette bar. This linear force is what drives the mushroom cams into their designated keeps.
The design effectively manages the physical tension exerted on the window sash. By distributing pressure evenly across the frame, this system prevents the sash from twisting or warping over time. The structural integrity of the steel components ensures that the hardware resists material fatigue even under constant daily use.
Because the cams are adjustable, you can fine tune the compression of the window seal. This adjustment capability allows you to mitigate the effects of thermal expansion or contraction. Maintaining a tight seal is essential for preventing air leakage and ensuring the longevity of your window gaskets.
Operational Workflow and User Interaction
Interacting with this locking system is designed to be intuitive and low effort for the end user. The sequence begins at the handle, which serves as the primary interface for engaging the locking bars.
- Users begin by ensuring the window sash is fully pulled into the closed position against the frame.
- The operator rotates the handle which initiates the smooth sliding motion of the espagnolette rod along the eurogroove.
- As the rod moves, the mushroom head cams travel into the strike plates mounted on the window frame.
- The user feels a positive engagement as the cams lock into place, signalling that the window is fully secured.
- To unlock, the user reverses the handle motion, retracting the cams from the keeps and allowing the sash to open effortlessly.
Ergonomic Benefits and Safety Compliance
Choosing high quality hardware plays a significant role in reducing user fatigue and preventing operational errors. A poorly designed lock often requires excessive force to engage, which can lead to strain or accidental damage to the handle mechanism. This model features a low friction design that ensures the locking action is consistently smooth.
Safety compliance is a critical factor for both commercial and residential projects. This hardware conforms to BS644, BS4873, and BS 7412 standards. These certifications ensure that the product has undergone extensive testing for mechanical strength and environmental durability. Using verified components protects building managers and homeowners from liability and ensures that every window operates exactly as intended.
Commercial ROI and Long Term Reliability
Investing in superior window hardware is a strategic decision that offers substantial financial benefits over the lifecycle of a building. Frequent replacement of inferior locking mechanisms results in high maintenance costs and unnecessary operational downtime. By selecting a robust Maco 800mm Offset Window Lock Espagnolette 20mm Backset MA57154, you significantly extend the time between service intervals.
The Grade 5 silver chromate finish provides exceptional corrosion resistance. This level of protection is vital for maintaining the aesthetic and functional condition of the hardware in coastal or humid environments. Protecting your building assets from moisture ingress and structural decay prevents expensive interior damage caused by poorly sealed window units.
If you are not sure if this window espag lock is right for your requirements, please contact our friendly team today. We provide expert advice to ensure you select the perfect hardware for your specific window profile and security needs.
Key Features of the System
This item is designed to offer maximum flexibility during the installation phase. It is perfectly suited for windows with or without a 16mm eurogroove, making it a versatile choice for a wide variety of profile types.
- The inclusion of mushroom head cams significantly improves the overall security rating of the window system.
- Users benefit from the adjustable locking cams which allow for quick and easy maintenance of the seal pressure.
- The standard 7.7mm cam height provides universal compatibility with most common strike plates and keep configurations.
- It is available in a range of sizes from 310mm to 1200mm to accommodate almost any standard window height.
- Installation is simplified by using 4mm countersunk screws which provide a flush fit and professional finish.
Technical Specifications
Refer to the table below for the precise mechanical and testing specifications of this unit. Understanding these values helps in selecting the correct hardware for your specific fenestration requirements.
| Feature | Specification |
|---|---|
| Product Name | Maco 800mm Offset Window Lock Espagnolette 20mm Backset MA57154 |
| Backset Size | 20mm |
| Cam Height | 7.7mm |
| Corrosion Resistance | BS EN 1670 Grade 5 |
| Compliance Standards | BS644, BS4873, BS 7412 |
| Material Finish | Silver Chromate |
| Compatibility | PVCu, Aluminium, Timber |
| Fixing Method | 4mm or No. 8 Countersunk Screws |
The Maco 800mm Offset Window Lock Espagnolette 20mm Backset MA57154 represents the pinnacle of modern locking technology. Its ability to provide secure, weather resistant, and easy to operate window control makes it a preferred choice for professionals and homeowners alike. By focusing on high quality materials and strict adherence to industry standards, this hardware ensures your windows remain reliable for years to come.
Proper installation is paramount to achieving the full benefit of these features. Always ensure that the keep plates are matched correctly to your specific window profile. If you have questions regarding the compatibility of this item with your existing system, our team is ready to assist with technical guidance and support.
Do not compromise on the security of your premises. Upgrade your hardware today to experience the difference in quality and performance that professional grade components can offer. Contact our sales department to discuss your requirements or to request a bulk order quotation for your upcoming renovation or construction project.
Specification
| Window Material Suitability | UPVC / Wood / Metal |
|---|---|
| Window Operation | Hinged |
| Faceplate Width | 16mm |
| Lock Backset | 20mm |
| Roller Height | 7.7mm |
| Gear Type | Offset |

