1. Detailed Materials, Engineering Grade & Environmental Durability
The MS819-10 4-Digit Combination Rotary Swing Handle Lock is built for high-security industrial cabinets, server racks, and network distribution hubs requiring keyless access control, heavy-duty mechanical leverage, and long-term durability.
High-Strength Die-Cast Zinc Alloy Metallurgy: Manufactured using high-density ZAMAK die-cast zinc alloy (ZDC) for the main housing, rotating handle lever, and internal cam mechanism. This structural composition provides exceptional tensile strength, impact resistance, and mechanical load capacity during high-frequency daily operation.
Electrostatic Powder Coating & Salt Spray Performance: The housing and lever are finished with a premium matte black electrostatic powder coating. This protective barrier shields the underlying alloy against oxidation, UV degradation, industrial grease, and chemical fumes. It successfully passes 48-hour to 96-hour neutral salt spray testing (ASTM B117 / ISO 9227), making it resilient in indoor industrial and atmospheric enclosure applications.
4-Digit Keyless Combination & Emergency Key Override: Features a resettable 4-digit mechanical combination mechanism offering 10,000 unique code combinations to prevent unauthorized access. Built-in key override capabilities allow instant emergency unlocking by security personnel.
Universal Left / Right Handed (Non-Handed) Mounting: Designed with a symmetrical reversible mechanism that seamlessly adapts to both left-hand (LH) and right-hand (RH) opening doors without needing internal component modification.
Ingress Protection (IP Rating Matching): Fitted with perimeter sealing gaskets around the mounting base and driver shaft, achieving an IP54 / IP65 ingress protection rating (EN 60529) against ambient dust, oil splashes, and moisture ingress.
2. Technical Specifications & Parameter Matrix
The following spec table is structured for clear engineering procurement checks and search engine rich snippet indexing:
| Technical Parameter | Specification / Grade Value |
| Model Code | MS819-10 |
| Product Type | Rotary Swing Handle Lock with Combination Code |
| Material Grade | High-Density Die-Cast Zinc Alloy (ZDC) |
| Locking Mechanism | 4-Digit Resettable Mechanical Combination Code |
| Door Orientation | Universal (Left-Hand / Right-Hand Reversible) |
| Operation Style | Rotary Handle Lift & Turn Action |
| Surface Finish | Electrostatic Black Powder Coating |
| Emergency Override | Master Key Override Cylinder Option |
| IP Protection Rating | IP54 / IP65 (Enclosure Gasket Dependent) |
| Mounting Style | Panel Cutout Bracket Mounting with Retaining Screws |
| Rod Control Compatibility | Compatible with Multi-Point Rod Latching Systems |
| Operating Temperature | -20°C to +70°C (-4°F to +158°F) |
| RoHS / REACH Status | Fully Compliant |
3. High-Frequency Industrial Application Scenarios
The MS819-10 combination swing handle lock is widely deployed across modern IT and electrical infrastructure demanding keyless security and multi-user access management:
Electrical & Control Enclosures: Provides keyless access and robust latching for low/medium voltage switchgear panels, motor control centers (MCC), and factory automation control cabinets.
Server Data Center Racks & IT Infrastructure: Secures 19-inch enterprise server racks, network distribution frames, and co-location data center enclosures requiring non-duplicable code access.
Outdoor 5G Telecom & Broadband Cabinets: Protects remote telecommunications housing, fiber optic cross-connect boxes, and outdoor battery backup cabinets from physical tampering.
Industrial CNC Machinery & Automation Access Panels: Offers ergonomic, heavy-duty door latching on high-vibration metalworking machinery, conveyor control bays, and generator housings.
Smart Storage & Power Distribution Equipment: Serves as a keyless security handle for automated kiosk doors, smart power meter boxes, and solar inverter enclosure panels.
4. Why Choose CUYUE for Your Industrial Hardware Needs?
At Wenzhou CUYUE Lock Technology Co., Ltd., we integrate advanced manufacturing capabilities with dedicated customer support for global OEMs, panel builders, and hardware distributors:
In-House R&D & Engineering Design: Supported by a dedicated design team specializing in industrial cabinet locks, hinges, and handles engineered to meet international standards.
Complete Tooling & Manufacturing Integration: Our facility integrates precision mold development, zinc alloy die-casting, automated CNC machining, surface finishing, and product testing under one roof.
Rigorous Testing & Quality Validation: Every batch undergoes strict mechanical cycle testing, salt spray corrosion testing, and locking code verification to ensure defect-free performance.
OEM/ODM Customization & Rapid Delivery: We offer flexible custom code mechanisms, master keying solutions, custom powder coatings, and rapid prototyping to keep your projects on schedule.
Cost-Effective System Solutions: We help clients optimize procurement costs without sacrificing durability, delivering complete enclosure locking hardware under one trusted brand.
5. Frequently Asked Questions (Q&A)
Q1: What is the main benefit of a 4-digit combination swing handle lock for server racks?
A: A 4-digit combination swing handle lock provides keyless access control with 10,000 resettable code combinations, eliminating the hassle of lost, stolen, or duplicated physical keys in multi-user data center environments.
Q2: Is the MS819-10 swing handle lock reversible for both left-hand and right-hand doors?
A: Yes. The MS819-10 features a universal (non-handed) mounting design that operates smoothly on both left-hand (LH) and right-hand (RH) opening enclosure doors without requiring extra adapters.
Q3: How do you reset the combination code on the MS819-10 combination lock?
A: The combination code can be reset from the back of the lock housing when the handle is opened in the unlocked position. Users engage the reset lever, dial their desired 4-digit code, and release the lever to lock in the new combination.
Q4: Does the MS819-10 swing handle lock include an emergency key override?
A: Yes. The MS819-10 can be ordered with an integrated emergency key cylinder override, allowing authorized security personnel to bypass forgotten combination codes instantly.
Q5: What material is used for the MS819-10 industrial swing handle lock?
A: The MS819-10 housing and rotary lever are precision-manufactured from high-density die-cast zinc alloy (ZAMAK/ZDC) finished with a durable, scratch-resistant matte black powder coating.
Q6: Can the MS819-10 be connected to a multi-point rod latching system?
A: Yes. The internal drive mechanism of the MS819-10 is compatible with standard industrial multi-point rod control systems, allowing top and bottom latching for tall cabinet doors.
Q7: What is the IP rating of the MS819-10 rotary swing handle lock?
A: When installed with the included base perimeter gasket, the MS819-10 provides an IP54 to IP65 ingress protection rating, shielding internal cabinet components from dust, grease, and light water splashes.
Q8: How does the powder-coated black finish resist industrial corrosion?
A: The electrostatic black powder coating forms a dense protective shell over the zinc alloy body, passing 48-hour to 96-hour neutral salt spray tests (ASTM B117) to prevent rust and surface corrosion in indoor and atmospheric industrial environments.
Q9: What panel cutout dimensions are needed for installing the MS819-10 swing handle lock?
A: The MS819-10 mounts into standard industrial swing handle rectangular cutouts. Double mounting brackets and retaining screws securely clamp the lock body against varying panel thicknesses.
Q10: Why purchase cabinet combination swing handles directly from a Chinese manufacturer like CUYUE?
A: Sourcing directly from Wenzhou CUYUE Lock Technology Co., Ltd. ensures factory-direct pricing, custom mold tooling capabilities, certified material quality, and rapid delivery backed by full ISO-aligned testing standards.
