Manufacturing Capabilities
89+ Machines, 7 Integrated Processes
From raw material to finished product — die casting, stamping, CNC machining, polishing, surface treatment, assembly, and quality testing — all under one roof in Ningbo, China.
89+
Total Machines
8
CNC Centers
4
Die Casting (25-280T)
14
Stamping Presses
7
QC Instruments
Production Equipment
Every step from raw alloy to finished, packed product happens in our facility.

CNC Machining Centers
CNC 加工中心 · 8 units
High-precision 3-axis vertical machining centers for tight-tolerance components, mold finishing, and secondary machining of die-cast parts.
| Equipment | Qty |
|---|---|
| Zhongjie VMC850B Vertical Machining Center | 5 |
| CONCZE V855 Vertical Machining Center | 3 |

Die Casting Machines
压铸机 · 4 units
Zinc and aluminum alloy die casting from 25T to 280T clamping force. Capable of producing small precision lock components to medium-sized structural parts.
| Equipment | Qty |
|---|---|
| LK (Liqi) 280T Aluminum Die Casting Machine | 1 |
| LK (Liqi) 88T Zinc Die Casting Machine | 1 |
| LK (Liqi) 50T Zinc Die Casting Machine | 1 |
| LK (Liqi) 25T Zinc Die Casting Machine | 1 |

Stamping Presses
冲压机 · 14 units
Open-type fixed-bed presses from 6.3T to 120T for sheet metal stamping, blanking, bending, and forming of steel and stainless steel components.
| Equipment | Qty |
|---|---|
| 120T Open Fixed-Bed Press | 1 |
| 80T Open Fixed-Bed Press | 1 |
| 40T Open Fixed-Bed Press | 2 |
| 16T Open Fixed-Bed Press | 4 |
| 10T Open Fixed-Bed Press | 2 |
| 6.3T Open Fixed-Bed Press | 4 |

Polishing & Surface Finishing
抛光 & 表面处理 · 11 units
Multi-station polishing machines, vibratory finishing, and grinding equipment for achieving mirror-polish, satin, or matte surface finishes before plating or coating.
| Equipment | Qty |
|---|---|
| Dual-Station Polishing Machine (wet dust extraction) | 3 |
| Quad-Station Polishing Machine (wet dust extraction) | 1 |
| Automatic Flat Surface Polishing Machine | 1 |
| Vibratory Finishing / Tumbling Machine | 3 |
| Bench Grinding Wheel | 3 |
Secondary Machining
辅助加工 · 39 units
Drilling, turning, milling, shearing, sawing, and riveting equipment for secondary operations, hole-making, threading, and assembly preparation.
| Equipment | Qty |
|---|---|
| Bench Drill Press | 17 |
| Instrument Lathe | 15 |
| Surface Grinder (7130 / KGS-2050AH) | 2 |
| Conventional Milling Machine (4S) | 1 |
| Conventional Lathe (C6140F) | 1 |
| Riveting Machine | 1 |
| CNC Shearing Machine (Q11Dk 4×2000mm) | 1 |
| Metal Band Saw (GB4028) | 1 |
Marking & Utilities
打标 & 公用设施 · 6 units
Laser marking for part identification and traceability. Screw-type air compressors powering pneumatic equipment across the factory floor.
| Equipment | Qty |
|---|---|
| Laser Marking Machine (DR-20T1) | 1 |
| Screw Air Compressor (Lingyuan Motor) | 5 |
Quality Control Laboratory
Every batch is tested before shipment. Our in-house lab covers corrosion, hardness, torque, coating, and environmental testing.

Salt Spray Test Chamber
Model: GY-60
ASTM B117 corrosion resistance testing

Rockwell Hardness Tester
Model: HR-150A
Material hardness verification (HRC/HRB scales)

Torque & Spring Tester
Lock mechanism torque and spring force measurement

Gas Spring Pressure Tester
Model: WST-YS500
Gas spring force and endurance testing

Coating Thickness Gauge
X-ray fluorescence plating/coating thickness measurement

High-Temperature Aging Chamber
Accelerated lifecycle testing at elevated temperatures
Rain Test Chamber
IP rating water ingress verification
Our Manufacturing Process
From your drawing to finished product — every step in-house.
Tooling & Mold
In-house mold design and CNC machining. DFM review included.
Die Casting / Stamping
Zinc & aluminum die casting (25-280T). Steel stamping (6.3-120T).
CNC & Secondary
8 CNC centers for precision machining, drilling, threading, and finishing.
Polishing
11 polishing stations for mirror, satin, or matte surface preparation.
Surface Treatment
Chrome plating, zinc plating, powder coating, baked enamel (RoHS/REACH).
Assembly
Complete lock assembly with springs, keys, cams, and packaging.
Quality Testing
Salt spray, hardness, torque, coating thickness, and aging tests.
Packing & Shipping
Custom packaging. FOB Ningbo. Shipping worldwide to 20+ countries.
See Our Factory in Action
Schedule a factory visit or send us your drawings for a free DFM review and quote.