High-Pressure Common Rail Valve Spool and Sleeve Manufacturer
Short Product Description:
CNC-machined valve spool and sleeve set for high-pressure common rail systems, delivering ultra-precise fuel control and exceptional durability under extreme conditions.
Contact Us
FREQUENTLY ASKED QUESTIONS
Dear Customer,
Thank you for contacting China Di Xin Technology regarding your customized production project! 🌟
In order to provide you with the most accurate quote within 24 hours, please provide the following details:
1、 Technical Documents:
2D Drawings (PDF/DWG/DXF)
3D Models (STEP/IGES/SOLIDWORKS)
(This ensures that we are fully aware of your specifications)
2、Ordering Quantity:
Estimated Units Required (for material and process optimization)
3、 Contact Info: Preferred email address
WhatsApp/Telegram (optional for faster communication)
Why work with us?
✅ Over 20 years of experience in precision machining and OEM solutions
✅ ISO 9001 certified facility with over 100 CNC machines
✅ Tooling Design & Engineering - Die Casting, Stamping, and Injection Molds
✅ Includes free DFM (Design for Manufacturing) analysis
Need design help?
Our engineering team is ready to help! Simply reply "I need design support"
Our goal is to send a formal quote within 24 business days of receiving complete information.
We look forward to bringing your concept to life!
Customized Solutions Manager
CONTACT US
Phone: +0086 159 1377 9214
WhatsAPP: +8615913779214
Email: deghtsgu9594@gmail.com
Address: No.2, Heng 1st Road, Jiatian Dongguan City, Guangdong, China
Do you have questions about how we can help your company?
Send us an email and we’ll get in touch shortly.
Overview
The high-pressure common rail valve spool and sleeve is a critical control component in diesel fuel injection systems. Engineered for ultra-precise fuel metering and high-frequency operation, this precision-matched pair ensures accurate fuel delivery, reduced emissions, and optimal engine performance under extreme pressure conditions.
Key Features
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High Precision Fit: Spool and sleeve pairs are manufactured with micron-level tolerances (≤±0.001mm) to guarantee leak-free operation and responsive actuation.
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Premium Materials: Made from high-strength, wear-resistant alloys such as 20CrMo, 40Cr, or M2 tool steel, with optional surface treatments like nitriding or DLC coating for improved durability.
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Complex Geometry: Custom internal and external profiles allow the valve spool to handle rapid switching and flow control under pressures exceeding 2,000 bar.
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Surface Finish: Achieved Ra0.02μm or better using advanced cylindrical grinding and superfinishing equipment.
Manufacturing Process
Our high-pressure common rail valve spool and sleeve sets are produced using a multi-step CNC machining and grinding workflow:
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Rough Turning (Mazak CNC Lathe)
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Precision Milling (Mikron 5-axis Machining Center)
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Internal & External Grinding (Studer Cylindrical Grinder)
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Surface Finishing (Superfinishing + Lapping)
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100% Dimensional Inspection (Zeiss CMM + Tokyo Seimitsu Roundness Tester)
Each set is thoroughly tested for concentricity, roundness, and clearance fit, ensuring reliable performance in Bosch, Delphi, and Denso-type common rail systems.
Applications
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Diesel engine fuel injection systems
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Commercial trucks and heavy-duty vehicles
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Agricultural and construction machinery
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Marine engines and locomotives
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High-precision test benches and fuel rail modules
Why Choose Us
We specialize in custom CNC-manufactured valve spools and sleeves, tailored to your drawings and technical requirements. Whether you’re an OEM, Tier-1 supplier, or aftermarket brand, our engineering team ensures optimal performance and tight quality control. We offer small-batch prototyping and mass production, with fast lead times and competitive pricing.
Global Direct Delivery No Worries
We provide efficient logistics services covering 150+ countries, with order processing taking only 1-3 working days . The whole logistics tracking system is updated in real time, and standard delivery arrives in 5-15 days (slightly extended in remote areas). Tariff prepaid/payment options are clearly labeled, and parcel safety is insured by all-risk insurance, so that no matter where you are, you can receive your goods in a worry-free and transparent way!
Cross-border delivery
International special line + local logistics strong combination of mainstream countries 7-12 days speedy arrival. Orders automatically generated tracking code, cell phone at any time to check the pieces. In case of customs clearance or delivery anomaly, 24/7 multilingual customer service instant response. Support DDP / DDU mode, transparent and controllable transportation costs, your satisfaction is our measure of the world!
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