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Sliding Door Lock Points: Design and Application Features
Sliding door lock points are the core hardware components that realize the locking, sealing and security of sliding doors. Their design directly determines the anti-theft performance, sealing, wind pressure resistance and durability of the door. In application, a clear selection logic is formed based on single-point/multi-point types, structure and scenarios.
Core Design Points of Lock Points
Lock Point Types and Structure
Single-Point Lock
Structure: Single bolt/hook, locked only in the middle of the door sash, driven by the handle
Material: Zinc alloy, ordinary steel, surface treated by electroplating or spraying for rust prevention
Multi-Point Lock (2/3/4 Points or More)
Structure: Linked multi-point locks on the top/bottom/side (sky-ground hooks, side hooks, bolts), synchronized locking when the handle rotates
Design Features: Multi-point stress, strong prying/wind pressure resistance; compressing weatherstripping to improve sealing and sound insulation; reducing door sash deformation
Common Forms:
Two-Point Lock: One lock point at the top and bottom, suitable for medium-sized doors
Three-Point / Four-Point Lock: Multi-points at top/middle/bottom or sides, for heavy-duty / high-security scenarios
Hook Lock / Bolt Lock: Hook lock has deep engagement and strong prying resistance; bolt lock is suitable for heavy-duty lift-sliding doors
Key Design Parameters
Lock Point Materials
Zinc Alloy: Moderate cost, sufficient strength, suitable for indoor / general scenarios
Stainless Steel (304/316): Corrosion-resistant, weather-resistant, high strength, preferred for outdoor / high-humidity / industrial scenarios
Precision Cast Steel: For heavy-duty doors / high-security scenarios, with stronger locking force
Lock Point Adjustment Function
Adjustable Lock Points: Thread / eccentric structure, fine-tune the extension of lock points to compensate for installation errors and door sash deformation, ensuring tight locking
Strike Plate Design: With adjustment slots, matching lock points for precise engagement
Lift-Sliding Doors: Must be equipped with multi-point locks (≥3 points). With the lifting mechanism, the door sash lowers to compress the weatherstripping when locked, providing optimal sealing and wind pressure resistance
Selection by Door Weight and Size: Single-point / two-point for ≤80kg; three-point or more for ≥80kg; four-point / sky-ground locks for heavy-duty doors
Selection by Scenario Security Level: Single-point for indoor / partitions; multi-point for balconies / exterior doors / commercial use; multi-point hook locks / bolt locks for security / industrial use
Material and Environment Matching: Zinc alloy for indoor use; 304/316 stainless steel for outdoor / coastal / high-humidity environments; precision cast steel for industrial use
Adjustment and Installation: Prioritize adjustable lock points for easy installation, commissioning and later maintenance
System Compatibility: Lock points, transmission, handle and strike plates must match the same system to ensure smooth linkage
We have introduced advanced equipment and technology from Japan and Germany (CNC 5-axis and 6-axis machines) to better serve our customers' needs.
Our maximum processing outer diameter is 60, and the minimum control tolerance is 0.001. We have Japanese CNC Tsugami, CNC Citizen, multi-station cold extrusion forming machines, 500T press machines, casting equipment, and various process equipment, which can effectively provide customers with the best technical solutions.
Our company has a total of 300 employees, including 20 technicians, 10 engineers, and 15 quality control personnel. We have over 300 pieces of equipment.
Our company implements 8S management and has passed ISO9001 and TS16949 automotive certifications.
Our customers include bo-sch, Foxconn, Motors, Husqvarna, Shimano, NVIDIA, DJI Drones, Siegenia, and Cater-pillar.
Our Capacity
Main product names:
Stainless steel screws, carbon steel screws, pins, rivets, nuts, eccentric nails, embedded parts, and other fasteners.
Business Type
Factory / Manufacture
Service
CNC Machining, Turning and Milling, CNC Turning, Cold heading, stamping, Assembly Service
