
Overview
Heavy-Duty 6068 Smart Lock Mortise Built for Ultimate Security & Precision
KEYPLUS 6068 Standard Commercial Smart Lock Mortise
The KEYPLUS 6068 is a commercial-grade smart lock mortise engineered from heavy-duty SUS304 stainless steel components, featuring a 60mm backset, 68mm hole distance, and an anti-card reversible latch. Built to withstand over 300,000 mechanical operations and 96-hour salt-spray corrosion tests, it serves as the rock-solid mechanical foundation for electronic door locks, high-end residential entrances, hotels, and security door systems.
Pain Points & Challenge
Overcoming Mechanical Resistance and Physical Security Loopholes
- Jammed Latches & High Motor Friction: Rough internal transmission gears create excessive mechanical resistance, overloading smart lock drive motors and rapidly draining batteries. KEYPLUS features precision-stamped internal linkages and high-elasticity return springs that lower operating drag below 1.8 N·m, prolonging motor clutch life and battery runtimes.
- Violent Sawing, Prying & Environmental Rust: Low-grade zinc alloy mortises fracture under kick-in force, while damp climates freeze internal lock mechanisms. KEYPLUS integrates solid SUS304 deadbolts resisting over 3,000 N of side pressure, paired with a 96-hour salt-spray corrosion-resistant housing for decade-long reliability.
Key Capabilities & Benefits
Precision-Forged SUS304 Stainless Steel Deadbolts
- Feature: Solid SUS304 triple-throw anti-theft deadbolts reinforced with internal hardened anti-saw protection pins.
- Advantage: Exceptional resistance to hacksawing, power drilling, and high-energy destructive pry forces exceeding 3,000 N.
- Benefit: Delivers compliance with strict national and international security standards, safeguarding high-asset properties against forced entry.
Ultra-Smooth Low-Friction Latch Mechanism
- Feature: Curved anti-friction latch paired with high-durability carbon steel torsion springs.
- Advantage: Drastically reduces latching friction and closing resistance, ensuring silent, smooth closure and quick return action.
- Benefit: Prevents motor stall and clutch burnout in automatic and semi-automatic smart locks, eliminating costly post-installation maintenance visits.
Reversible Latch with Anti-Card Defense
- Feature: Tool-free reversible latch design integrated with an auxiliary anti-pick security trigger pin.
- Advantage: When the door closes, the auxiliary deadlocking pin depresses to deadlock the main latch against credit cards or plastic shim picking tools. Reversing direction takes seconds without disassembling the chassis.
- Benefit: Doubles entrance security across apartments and commercial spaces while slashing distributor inventory stocking requirements by 50%.
Technical Specifications
| Model Standard | KEYPLUS 6068 Standard Smart Lock Mortise |
| Product Category | Accessories & Modules / Lock Bodies & Mechanical Parts |
| Center Distance (PZ) | 68 mm (Spindle hole center to cylinder profile center) |
| Backset Spacing | 60 mm (Faceplate surface to spindle hole center) |
| Spindle Hole Size | 8 mm × 8 mm (Standard Square Spindle) |
| Faceplate Dimensions | 240 mm × 24 mm × 3.0 mm (Square edge standard, round edge optional) |
| Mortise Body Dimensions | 175 mm (H) × 92 mm (D) × 19 mm (W) |
| Bolt Configuration | 1 Anti-Friction Latch + 3 Solid SUS304 Anti-Pry Deadbolts + 1 Auxiliary Deadlock Pin |
| Faceplate & Bolt Material | SUS304 Stainless Steel (Precision Stamped / Cast) |
| Lock Case Material | High-Strength Galvanized Cold-Rolled Steel Plate (≥ 1.5 mm) |
| Surface Finish | Brushed Stainless Steel (Custom PVD Matt Black / Gold / Brass available) |
| Mechanical Endurance | ≥ 300,000 Cycle Life Tested (Complies with GA/T 73 Standard) |
| Corrosion Resistance | NSS 96-Hour Neutral Salt-Spray Certified |
| Handing / Opening Direction | Universal Non-Handed / Tool-Free Reversible (Left / Right, Inward / Outward) |
| Applicable Door Types | Wooden Doors, Steel Security Doors, Fire-Rated Doors, Metal Gate Systems |
| Applicable Door Thickness | 40 mm – 110 mm |
Technical Drawing

Packaging & Delivery
Factory Assembly & Engineering Contractor Packaging Solutions
- Single Box Package: 1× 6068 Mortise, 1× SUS304 Strike Plate, 1× ABS Strike Dust Box, 4× Reinforced Mounting Screws.
- Master Carton Packing: 20 Units per export master carton (Carton Dimensions: 480 × 320 × 210 mm, Gross Weight: ~18.5 kg).
- OEM Customization: Custom faceplate laser marking, custom faceplate dimensions (e.g. 24×240 mm round/square), customized strike plates, and tailored packaging for automated lock assembly lines.
- Fulfillment & Lead Time: Standard samples dispatched in 3–5 business days; mass production delivered in 15–20 business days (25–30 days for customized faceplates).

