Fullex Genuine SL16 35mm Centre Lock Replacement Split Spindle
- Genuine SL16 Replacement Gearbox
- 68mm PZ Centres
- Split Spindle Function
- Reversible Handing
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
Fullex Genuine SL16 35mm Centre Lock Replacement Split Spindle
Maintaining the integrity of your home security system is a task that requires precision, quality components, and an understanding of how door hardware interacts over time. The Fullex Genuine SL16 35mm Centre Lock Replacement Split Spindle serves as the vital heartbeat of your door mechanism. It is engineered to provide superior strength and long term reliability for properties that demand a robust approach to entrance security.
When the central gearbox of a multipoint locking system fails, it is often unnecessary to replace the entire strip mechanism. By choosing this genuine replacement part, you restore the original functionality of your door while saving significant time and labour. It is an ideal solution for locksmiths, maintenance professionals, and homeowners looking to rectify latching or locking issues efficiently.
Understanding the Mechanical Physics and Operational Forces
Modern door locking systems endure immense mechanical stress every single day. Each time a door is closed or a handle is operated, the internal components are subjected to significant torque and frictional forces. This gearbox is designed to mitigate metal fatigue through advanced material construction and refined internal gear geometry.
The latch and deadbolt assembly within this unit work in harmony to distribute the force applied by the handle. By effectively managing the load across the internal springs and cams, this device prevents premature wear. High quality internal components ensure that the handle remains firm, preventing the sagging or 'sloppy' feel often associated with inferior or worn out hardware.
Step by Step Operational Workflow
Operating a high security door should feel fluid and intuitive for the end user. When you close your door, the latch bolt engages with the keep plate automatically. This provides an immediate level of security without requiring manual locking.
- You should lift the handle upwards to engage the secondary locking points along the full length of the door edge.
- Once the points are extended, you can insert your key and turn it fully to engage the main deadbolt, which locks the mechanism firmly into place.
- To exit or open the door from a locked state, you first turn the key in the opposite direction to retract the main deadbolt.
- After the deadbolt is clear, pushing the handle downwards simultaneously retracts the latch and releases all auxiliary locking points to allow for smooth entry.
Mastering the Split Spindle Functionality
The split spindle feature is a sophisticated addition that enhances security for external doors. This function allows the internal handle to operate the latch freely, while the external side remains locked unless accessed by a key. To enable this specific mode, the small pin surrounding the spindle hole must be broken by lifting the external handle upwards while pushing the internal handle down simultaneously. You will hear a distinct snap, which confirms the pin has been cleared, allowing the spindle halves to function independently.
Ergonomics, Safety, and Security Compliance
The ergonomics of your door hardware play a significant role in daily comfort and accessibility. A heavy door that requires excessive force to operate can lead to user fatigue, which in turn leads to poor maintenance habits. By replacing a failing gearbox with this Fullex Genuine SL16 35mm Centre Lock Replacement Split Spindle, you ensure the mechanical resistance is kept within industry standards. This creates a smooth, frictionless handle action that is easy for individuals of all ages to operate safely.
Security compliance is another critical factor. When pairing this unit with a high security cylinder, such as the Ultion 3 star TS007 diamond cylinder, you create a formidable barrier against forced entry. This combination ensures your property meets modern insurance requirements, providing peace of mind through a verified and tested security profile.
Commercial ROI and Long Term Value
Professional Advice: Investing in genuine replacement hardware provides a superior return on investment. While generic parts may appear cheaper upfront, they often lead to repeated failures and increased maintenance cycles. Choosing authentic components protects your property, reduces long term overheads, and keeps your locking systems operational for decades.
For commercial property managers and homeowners, the durability of this hardware translates directly into cost efficiency. A robust locking system reduces the need for emergency callouts and hardware repairs. By preventing the total failure of the multipoint system, you preserve the life of the secondary shoot-bolts and keeps, effectively doubling the lifespan of your door's security investment.
Technical Specifications
Please review the detailed data below to ensure this unit is compatible with your existing door setup. This model is designed for versatility and non handed operation, making it a staple for many composite and timber door installations.
| Feature | Specification |
|---|---|
| Backset | 35mm |
| Lock Centres | 68mm PZ |
| Faceplate Width | 16mm |
| Spindle Size | 8mm |
| Case Height | 195mm |
| Case Width | 50mm |
| Handing | Non handed |
| Locking Type | Latch and deadbolt |
Installation and Fitting Insights
The unit comes equipped with integrated fixing tabs at the top and bottom of the gearbox, measuring 15mm by 9mm. The central lugs are 11mm wide, providing a sturdy anchor point within the door profile. When mounting, ensure the screws align with the established 206mm centres to prevent misalignment of the gear train. Proper alignment is crucial to ensure that the handle operation remains smooth and that the deadbolt does not grind against the keep during engagement.
Commitment to Quality and Support
Selecting the right hardware can be complex, especially with the variety of multipoint locks currently in circulation. We understand that precision is paramount when dealing with door security. If you are not sure if this multipoint lock is right for your requirements please contact our friendly team today to discuss your requirements. Our experts at Doorfit are ready to assist you in identifying the exact component needed to restore your home security to its optimal state. By choosing this Fullex Genuine SL16 35mm Centre Lock Replacement Split Spindle, you are opting for a proven design that has set the benchmark for security and reliability in the British architectural hardware market.
Specification
| Manufacturer | Fullex |
|---|---|
| Guarantee | 12 Months |
| Lock Type | Multipoint |
| Lock Operation | Euro Cylinder |
| Lock Backset | 35mm |
| Lock Centres | 68mm |
| Follower Size (mm) | 8 |
| Mechanism | Case Only |
| Door Material Suitability | UPVC / Timber |

