Introducing our Lockmaster gearboxes, designed for optimal performance and versatility in locking solutions.
Lockmaster gearboxes are available in two backset sizes: 35mm and 45mm, featuring both double spindle and single spindle mechanisms. For bifold doors, we offer specialized versions in 25mm and 28mm backsets.
Key Features:
Double Spindle Locks:
Centres: 62mm and 92mm
Unsprung design; we recommend pairing with sprung door handles.
Functions: Can be utilized as a lift lever or double spindle night latch.
Single Spindle Locks:
Sprung mechanism, limited to lift lever function.
Dimensions:
Gearbox Size: 228mm high + backset (add 15mm)
Latch and Deadbolt Height: 30mm each
Distance Between Latch and Deadbolt: 65mm
Installation Details:
Gearboxes are secured to faceplates with three screw holes:
Top to middle screw hole: 109mm
Middle to bottom screw hole: 109mm
Additional Information:
Earlier models included a small spindle hole near the latch for holding the latch back. The 45mm version mirrors the 35mm but features an extended latch and deadbolt, along with a cover plate for conversion.
We also stock a variety of associated products for Lockmaster Standard gearboxes, including multipoint door locks, keeps, spindles, handles, and accessories.
Operation: Lift Lever
Latch Reversal: To reverse the latch, simply undo the screw, remove the latch, reverse it, and reinsert before replacing the screw.
units with protective packaging to ensure safe delivery.
Additional Notes:
• Ensure that the handle is fully lifted to engage all locking points for maximum security.
• Regular maintenance of the locking mechanism is recommended to ensure smooth operation and longevity.
• For any installation queries or troubleshooting, refer to the Lockmaster installation guide or contact our support team for assistance.
Safety Precautions:
• Always ensure the door is fully closed before engaging the locking mechanism.
• Keep the key in a safe place and avoid sharing it with unauthorized individuals.
• If you experience any issues with the locking system, do not attempt to force it; contact a professional locksmith for help.
