Passivation Precision Machined Steel Parts For Vehicle Hydraulic Systems
Precision Machined Steel Parts With Passivation For Vehicle Hydraulic Systems
Over 15 Years of Experience in CNC Machining
Our focus:
Our advantages:
- Advanced equipment: We operate a world-class facility equipped with a variety of precision CNC machines from brands like Brother, HAAS, and Mazak. These include vertical milling centers, precision milling and turning lathes, covering 3-axis, 4-axis, and 5-axis models.
- Comprehensive in-house machining capabilities: We adhere to the ISO 2768-F/M machining standard tolerance, producing parts of various sizes and complexities. For details on our maximum CNC milling capabilities, please refer to the machining list below.
- Reliable raw materials: We guarantee 100% compliance of materials with RoHS standards and design specifications. Material certificates and SGS reports are available upon request. We work with a wide range of materials, including steel, aluminum, stainless steel, titanium, and engineering plastics such as PEEK, PC, and POM. For more details, please refer to the list below.
- Flexible order quantities: We accept orders starting from 1 piece, catering to both short-run precision CNC milling & turning and large-volume production.
- Quick turnaround: We provide quick quotes within hours and fast delivery within days.
- Skilled and professional team: Our R&D team is highly competent.
- Global customer base: Our customers are mainly from the EU and North America.
Quality assurance:
What we do to ensure you receive high-quality parts from JINGXIN:
- 100% inspection is conducted before shipping, and an inspection report for each precision CNC milling part is available. (ISO quality control is implemented throughout the entire production process.)
- Since 2016, we have been a certified precision CNC milling supplier for Volvo Auto Corporation in China, with no complaints to date.
- In case any precision machined part fails to meet tolerance requirements or your specific specifications, we will re-manufacture and deliver it as quickly as possible, free of charge.
- Over the years, JINGXIN CNC Milling Company has manufactured thousands of precision CNC machined components for our customers. The 99.9% satisfaction rate from customers motivates us to provide more high-quality precision machined parts to meet their needs.
| 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 material.
| 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 |
Our Precision Machined Steel Parts Processing Flow:
1.Precision Fixturing & Positioning for Steel Workpieces: Tailored fixture systems are engineered to address steel’s high rigidity and machining forces, ensuring stable clamping and micron-level positioning accuracy of steel workpieces on machine tools. This eliminates deformation-induced errors during heavy-duty machining, laying a solid foundation for consistent precision in steel parts.
2.Efficient Multi-Process Integrated Machining for Steel: Leveraging high-performance 3-axis/4-axis/5-axis machining centers and turn-mill composites (from world-renowned brands like Brother, Haas, and BAOJI, with a precision tolerance of ±0.001 mm), we complete complex steel machining processes—including milling, turning, drilling, and thread cutting—in one setup. For high-hardness or thick-walled steel parts, this integrated approach reduces workpiece handling by 30%, shortens cycle times by an average of 20%, and minimizes cumulative errors from repeated clamping.
3.Real-Time Monitoring for Steel Machining Stability: Operators monitor cutting parameters (such as spindle speed, feed rate, and tool wear) in real time, especially critical for heat-treated or high-carbon steel parts prone to hardening. This proactive oversight prevents tool breakage, ensures uniform surface finishes, and maintains stable machining quality throughout the steel part production process.
4.Comprehensive Quality Inspection for Steel Performance: Quality is paramount in precision steel machining. Post-production, we employ advanced testing equipment—including Serein coordinate measuring machines (CMM), Mitutoyo precision gauges, 2D height measurement systems, go/no-go gauges, Rockwell/Brinell hardness testers, digital micrometers, 2.5D projectors, and X-ray spectrum analyzers—to conduct 100% full inspections. Key steel-specific parameters are verified: dimensional accuracy, tolerance compliance, surface roughness (Ra/Rz), hardness (to confirm heat treatment effectiveness), tensile strength, and corrosion resistance (for surface-treated steel parts). This rigorous testing minimizes assembly mismatches and slashes rework costs for steel components.
5.Steel-Specific Post-Processing & On-Time Delivery: We provide specialized post-processing for steel parts, including precision deburring (critical for eliminating sharp edges in load-bearing steel components), ultrasonic cleaning to remove machining residues, and customized surface treatments (such as electroplating for corrosion resistance, black oxide coating for wear resistance, sandblasting for texture uniformity, and painting for aesthetic or environmental protection). After thorough cleaning and rust-proof packaging (or custom packaging as required), finished precision machined steel parts are delivered with an on-time rate exceeding 99.5%.
Finish and surface Treatment:
| Polishing & surface grinding | In house | Electro Plating | Contacted suppliers |
| Sandblasting & Bead blasting | In house | Anodizing | Contacted suppliers |
| Painting | In house | Flame/ Vacuum/Nitrided hardness | Contacted suppliers |
| Screen printing for mark | In house | Hot Galvanized | Contacted suppliers |
| Laser engraving | In house | Chemical Black & Black Oxide | Contacted suppliers |
| Powder coating | In house | Vacuum plating | Contacted suppliers |
Fast Lead time and safe shipping:
1-2 weeks
Wooden case safe packing, Ship by Air or sea.
Customer Feedback
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.