Sliding Door Mortise Lock

The Sliding Door Mortise Lock Series is engineered for high-frequency commercial and residential sliding door assemblies. Unlike surface-mounted latches, this mortise lock integrates into the door stile via precision CNC pocket milling, maintaining clean architectural lines while delivering structural deadlock security via a reinforced hook bolt mechanism.

Key Technical Parameters

Selecting the correct mortise lock variant prevents installation misalignment and premature wear. Follow this four-step specification matrix:

Door Material & Stile Width:
• Aluminum / Hollow Metal Profiles: Minimum stile width 80 mm; select narrow faceplate (20 mm).
• Solid Wood / Architectural Millwork: Minimum stile width 100 mm; select standard faceplate (24 mm).

Backset Selection:
• 50 mm Backset: Compact sliding partitions, narrow frames.
• 60 mm / 70 mm Backset: Standard commercial doors requiring heavy-duty cylinder integration or thumbturn clearance.

Lock Function Matrix:
• Privacy Function (Model SML-01): Emergency release exterior slot, interior thumbturn.
• Entrance / Keyed Function (Model SML-02): Euro profile cylinder or mortise cylinder integration with keyed deadbolt throw.
• Passage / Pull-Only Function (Model SML-03): Retractable hook bolt controlled by flush pull edge finger.

Multi-Family Residential Pocket Doors: Designed for heavy solid-core wood doors requiring positive latching without binding.

Commercial Office Partition Systems: Integrates with aluminum frame sliding walls where acoustic sealing and latch stability are mandatory.

Hospitality Sliding Balcony Doors: Salt-fog resistant materials support coastal hotel and resort architecture.

We operate as a direct manufacturer with integrated tooling, stamping, and automated testing facilities.

Material & Metallurgical Composition
• Case Body: 1.5 mm cold-rolled steel with yellow zinc-chromate passivation or black electrophoretic coating for oxidation prevention.
• Hook Bolt & Internal Cams: Investment-cast stainless steel (AISI 304) or sintered steel with carbonitriding heat treatment (HRC >= 50) to resist side-load shear attacks.
• Faceplate & Strike Plate: Solid extruded brass or architectural stainless steel grade 304, available in Satin, Polished, or PVD Matte Black.

Manufacturing & Quality Control Workflow
• Tooling & Stamping: Progressive stamping dies operated on 160T-300T hydraulic presses ensure dimensional repeatability within +/- 0.05 mm.
• CNC Pocket Milling Validation: Every lock body undergoes 100% go/no-go gauge testing for cam rotation smoothness and spring tension calibration.
• Endurance Testing Rig: Automated pneumatic life-cycle testers execute continuous lock-and-throw sequences under simulated vertical door sag loads.

Minimum Order Quantity (MOQ): 500 pcs per model/finish for standard stock items; 1,000 pcs for custom backset or laser-etched OEM branding.

Lead Time:
• Standard catalog items: 25 to 30 days after order confirmation.
• Custom OEM tooling / specialized faceplate dimensions: 45 to 55 days.

Packaging Specification: Individual industrial box packing (anti-scratch PE foam + corrugated carton), 20 sets per master export carton, palletized with stretch film and corner guards.

Sample Policy: Engineering evaluation samples available within 7 business days upon freight collect account provision.