High-Precision CNC Turned Automotive Parts With Nitriding Treatment
For Extended Service Life
In the demanding world of automotive manufacturing, precision and
durability are non-negotiable—and high-precision CNC turned
automotive parts with nitriding treatment stand out as a testament
to both. These components, crafted through advanced CNC turning
processes, boast tight tolerances and intricate designs, ensuring
seamless integration into critical automotive systems, from engine
assemblies to transmission mechanisms.
What truly elevates their performance is the specialized nitriding
treatment applied post-machining. This surface-hardening process
infuses nitrogen into the material, creating a hard, wear-resistant
outer layer while retaining the core’s toughness. The result? Parts
that resist friction, corrosion, and fatigue even under extreme
temperatures and constant mechanical stress—qualities that directly
translate to extended service life for vehicles.
Whether it’s a precision shaft, a valve component, or a custom
fastener, these nitrided CNC turned parts are engineered to meet
the rigorous standards of modern automotive engineering. They don’t
just fit; they enhance reliability, reduce maintenance needs, and
contribute to the overall efficiency of the vehicles they power.
For manufacturers and suppliers aiming to deliver excellence, these
parts aren’t just components—they’re a promise of longevity and
performance on the road.
15+ years of experience in CNC machining:
JINGXIN has 15+ years of experience in custom CNC precision
machining services and is located in Dongguan City, China.
JINGXIN's professional team adopts reasonable manufacturing
processes, solutions, and reliable workmanship to supply
high-quality, one-stop custom CNC precision machined parts made of
stainless steel, aluminum, iron, etc.
Nitriding Treatment Application:
Nitriding treatment forms nitrides (such as iron nitrides) on the
metal surface, greatly enhancing the surface hardness (typically
reaching 50-100 HRC), which is much higher than that of the base
material itself. This high-hardness surface layer can effectively
resist friction, wear, and scratches, extending the service life of
parts—especially suitable for high-frequency contact mechanical
components like gears, bearings, and shafts.
The diffusion of nitrogen atoms creates compressive stress in the
surface layer of the material, offsetting the tensile stress
generated in parts under cyclic loads. This improves their fatigue
resistance, which is crucial for components subject to repeated
impacts or vibrations (such as automotive engine valves and
connecting rods), reducing the risk of fracture due to fatigue.
The formed nitrided layer has a dense structure, which can block
direct contact between moisture, oxygen, and corrosive media with
the base material. This enhances the metal's corrosion resistance
to a certain extent, especially in humid or mildly corrosive
environments.
Unlike processes such as overall quenching, nitriding treatment
only strengthens the surface layer, while the base material retains
good toughness and ductility. This "hard exterior and tough
interior" characteristic allows parts to withstand surface wear
while resisting impact loads, avoiding brittle fracture.
It is suitable for various alloy structural steels, tool steels,
stainless steels, etc., and is particularly effective for steels
containing alloying elements such as chromium, molybdenum, and
aluminum. It is widely used in high-precision, wear-resistant
components in automotive, machinery, aerospace, and other fields.
Our Advantages :
1. Advanced Equipment: We operate a world-class facility with a variety of precision CNC
machines—Brother, HAAS, Mazak; vertical milling centers, and
precision milling & turning lathes (including 3-, 4-, and 5-axis
models).
2. Complete In-House Machining Capability: We meet the ISO 2768-F/M machining standard tolerance, and produce
parts in a wide range of sizes and complexities. For maximum CNC
milling capability, please refer to the machining list below.
3. Raw Material Assurance: We 100% ensure raw materials comply with RoHS standards and meet
design specifications. Material certificates and SGS reports are
available for reference upon request. Available Materials: Steel,
aluminum, stainless steel, titanium, and engineering plastics
(e.g., PEEK, PC, POM), etc. For more details, please refer to the
list below.
4. Order Quantity: Accept orders starting from 1 unit; Supporting both short-run precision CNC milling & turning and
large-volume production.
5. Quick Turnaround: The quick quote in hours and fast delivery in days. Skilled &
professional team (R&D);
6. Our Customers are from the EU and North America.
Quality Assurance:
What we do to ensure you get the quality parts from JINGXIN ?
We hereby declare that we will be responsible for our precision
machined parts at all times.
1. 100% inspection before shipping and inspection report for each
piece of precision CNC milling parts is available.
(ISO quality control is implemented throughout the entire
production process).
2. We have served Volvo Auto Corp since 2016 as an approved
precision CNC milling company in China. with no complaints so far.
3. In case any precision machined part that is outside the
tolerance or your special specifications, we will remake and
deliver as soon as possible; 100% at our expense.
4. For past years, JINGXIN CNC milling company has manufactured
thousands of precision CNC machined components
for our customers. 99.9% satisfaction feedback drives us to supply
more quality precision machined parts to meet customer
requirements.
| Equipment | Brand | Qty | Range | Accurany |
| Projector | Tianle | 1 | 100*200*300 | 0.005MM |
| CMM | Serein | 1 | 600*800*600 | 0.001MM |
| Height Gauge | TRMOS | 2 | 800 | 0.001MM |
| microcalliper | Mitutoyo | 6 | 0~50 | 0.001MM |
| caliber rule | Mitutoyo | 20 | 0~300 | 0.01MM |
| dial gauge | Mitutoyo | 5 | | 0.001MM |
| Pin gauge | Chuan liang | 1set | 0.5~30 | 0.01MM |
| R Guage | Chuan liang | 1 | 0.5~10 | 0.1MM |
| Plane | Lu yang | 3 | 1000*1500 | 0.005MM |
| Hardness tester | Luoshi | 1 | 0~90 | |
| Surface roughness tester | Mitutoyo | 1 | | Ra0.05 |
| Coating thickness tester | Mitutoyo | 1 | | 0.002MM |
Factory & Work shop & Equipment list:
| Equipments list | Brand | Qty | Working Range (mm) | Precision |
| CNC machines | Huaqun H-1580B | 2 | 1580 | 0.005mm |
| Qiaofeng VMC-1270 | 2 | 1270 | 0.005mm |
| Qiaofeng VMC-850 -4 Axis | 12 | 850 | 0.005mm |
| Joint 850 | 10 | 850 | 0.005mm |
| (Takan) | 4 | 600 | 0.005mm |
| FEELER 5 Axis | 4 | 850 | 0.005mm |
| Milling Machine | Jie yong da | 10 | 760x330 | 0.01mm |
| Milling Machine | Bao Feng | 1 | 760x330 | 0.01mm |
| Lathe | Dalian | 2 | 600 | 0.01mm |
| N/C Turning | Tai Yu | 6 | 500x300 | 0.005mm |
| W/C | Xiongfeng | 6 | 500x300 | 0.005mm |
| W/C(Mid) | Xiongfeng | 1 | 500x300 | 0.005mm |
| Grinding Machine | Wanbang | 4 | 400x200 | 0.002mm |
| Laser Marking machine | | 1 | | |
We work with raw materials.
| Plastic | Metal | Grade |
| ABS | Aluminum Alloy | 2007/ 2017/5052 /6061/6082/6063/7075 ,.etc. |
| PC (Polycarbonate) | Brass&Copper | 3602 / H59 / H62 / C3600/C38500/,.etc. |
| PEEK | Stainless steel | SS 301,SS304,SS316L,SS400,SS430,etc |
| POM | Carbon Steel | A2,Q235,20#,45#.etc |
| PMMA (Acrylic) | Titanium Alloy | |
| PE | Magnesium alloy | |
| PVC | Zinc alloy | |
| Teflon | Tungsten Carbide | YG8,YG10 |
| Other special plastic | Other | Up on Customer’s request |
Fast lead time and safe shipping:
1-2 weeks
Wooden case safe packing, Ship by air or sea.
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