KINGKA is a certified and trusted manufacturer of custom CNC Turning machined parts, delivering ultra-precise, high-performance components tailored to your specific designs. With over 15 years of experience, we support a full range of turning operations, from prototyping to mass production, serving industries such as:
Automotive & EV
Aerospace & UAV
Medical Equipment
Industrial Automation
Electronics & Connectors
Hydraulic & Pneumatic Systems
Using 2–9 axis CNC Turning centers, Swiss-type lathes, and live tooling systems, we handle even the most complex turned parts with tight tolerances, superior surface finishes, and full traceability.
| Feature | Specification / Capability |
|---|---|
| CNC Turning Accuracy | General tolerance: ±0.01 mm；Fine: ±0.005 mm (upon request) |
| Roundness Control | Up to 0.003 mm |
| Max Part Diameter | 300 mm |
| Max Turning Length | 1000 mm |
| Surface Finish | Ra 0.8–3.2 (machined); Ra ≤ 0.4 (polished or ground) |
| Supported Threads | Metric, UNC/UNF, NPT, BSPT, custom threads |
| Concentricity | ≤ 0.005 mm |
| Runout Control | ≤ 0.01 mm |
Materials We Work With
Aluminum: 6061, 6082, 7075, 5052
Stainless Steel: 303, 304, 316L, 420, 440C
Carbon Steel: 1018, 1045, 1215
Alloy Steel: 4140, 4340, 8620
Brass: C360, C464
Copper: C110
Titanium: Grade 2, Grade 5 (Ti6Al4V)
POM/Delrin
PTFE
Nylon
PEEK
ABS
PVC
| Finish Type | Purpose | Materials |
|---|---|---|
| Anodizing | Corrosion resistance, appearance | Aluminum |
| Electroplating | Wear resistance, conductivity | Steel, brass, copper |
| Black Oxide | Anti-rust, matte black finish | Steel |
| Zinc/Nickel Coating | Enhanced durability | Carbon steel, alloy steel |
| Powder Coating | Color, corrosion resistance | Steel, aluminum |
| Polishing/Brushing | Cosmetic or low friction | All metals |
| Passivation | Prevent oxidation on stainless | Stainless steel |
Typical CNC Turned Products
| Product | Industry/Use |
|---|---|
| Precision Shafts | Motors, robotics, gear assemblies |
| Threaded Fittings | Hydraulic/pneumatic connections |
| Hex Standoffs | PCB and electrical mounting |
| Connector Housings | Data, sensor, coaxial applications |
| Bushing & Sleeves | Rotational or linear motion assemblies |
| Pins & Dowel Rods | Fixtures, aerospace locators |
| Valve Bodies | HVAC, water control systems |
| Custom Fasteners | Specialized threads or materials |
Quality Control Process
We adhere to ISO 9001:2015 and IATF 16949 quality standards. Our multi-stage inspection process includes:
| QC Stage | Tools/Equipment |
|---|---|
| Incoming Material Test | Spectrometer, Hardness Tester |
| In-Process QC | Digital Calipers, Micrometers, Go/No-Go Gauges |
| Final Dimensional QC | 3D CMM, Optical Comparator, Surface Roughness Tester |
| Thread Verification | Thread Gauges (metric/inch) |
| Surface Inspection | WG Gloss Meter, Coating Thickness Gauge |
| Documentation | FAI Report, COA, Material Certs, Inspection Reports |
Packaging & Delivery
Custom foam inserts or anti-static bags for delicate parts
VCI paper for corrosion-sensitive components
Barcode or QR tracking on labels
Kitting service for assembly-line readiness
Support for DHL, FedEx, UPS, sea/air freight, or customer-specified logistics
Export documents provided (Packing List, Invoice, COO, etc.)
We accept STEP, IGES, DWG, DXF, and PDF files. If needed, we can help optimize your 3D model for manufacturability.
Prototypes: 5–10 working days
Mass production: 15–30 days depending on quantity and complexity
Yes. We support low-volume prototypes (1–100 pcs) as well as high-volume batch production with price breaks.
Each batch undergoes full-dimensional inspection, and we maintain process control charts, tooling calibration, and material traceability to ensure repeatability.
Yes. We can do light assembly, thread inserts, bushing pressing, and more, to deliver ready-to-use subcomponents.
Absolutely. We can source RoHS/REACH-compliant materials and provide material certification for aerospace, automotive, or medical projects.
Kingka Tech Industrial Limited
We specialize in precision CNC machining and our products are widely used in telecommunication industry, aerospace, automotive, industrial control, power electronics, medical instruments, security electronics, LED lighting and multimedia consumption.
Address:
Da Long New Village, Xie Gang Town, Dongguan City, Guangdong Province, China 523598
Email:
Tel:
+86 1371244 4018
