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CNC Precision Nozzles Technical Specifications
| Valve Core Types | Spool Valves, Poppet Valves, Cartridge Valve Cores, Needle Valves, Solenoid Plungers |
|---|---|
| Primary Equipment | Star CNC Swiss-type Lathes, 4-axis CNC Machining Centers, Precision Cylindrical Grinders |
| Dimensional Tolerance | Sealing Diameters: ±0.002mm; General Diameters: ±0.005mm |
| Geometric Tolerances | Concentricity/Coaxiality: 0.003mm; Cylindricity: 0.002mm |
| Common Materials | SUS316L, SUS304, 17-4PH, 42CrMo, Brass (C36000), 12L14 |
| Heat Treatment | Quenching & Tempering, Induction Hardening, Nitriding (Up to HRC 55-60) |
| Surface Roughness (Ra) | Ground Sealing Surfaces: Ra 0.2; Turned Surfaces: Ra 0.4 - Ra 0.8 |
| Machining Features | Precision Sealing Cones, Micro Cross-Drilled Holes, Internal Threads, Grooves |
| Inspection & Cleaning | Japanese/German CMM, Optical Comparators, Air Gauges, Ultrasonic Cleaning Machines |
High-CNC Precision Nozzles for Critical Fluid Control Systems
At Xierge Precision Machinery Co., Ltd., we leverage over 30 years of operational experience since 1990 to engineer premium CNC Precision Nozzles for the automotive, medical, hydraulic, and pneumatic industries. Valve cores are the internal regulating elements of fluid control systems, requiring absolute micro-precision, flawless sealing edges, and superior surface finishes to prevent leakage and ensure responsive flow regulation. Even a microscopic deviation in the sealing cone or journal diameter can lead to internal leakage, pressure drops, and system failure.
To achieve flawless results, our state-of-the-art facility is equipped with Japanese imported Star CNC Swiss-type lathes, advanced 4-axis CNC machining centers, and precision cylindrical grinders. This specialized equipment allows us to machine complex valve core geometries—including precision sealing cones, micro-cross holes, and internal threads—in a single setup. The Swiss-type guide bushing technology provides unparalleled support, enabling us to maintain extreme concentricity and cylindricity on long, slender valve spools without deflection.
Following our core principle of "Integrity Oriented, Quality Foremost," we strictly adopt premium raw materials, such as 316L and 304 stainless steel, hardened alloy steel, and brass, tailored to your specific fluid and pressure requirements. We apply strict quality inspection protocols utilizing a complete set of testing instruments imported directly from Japan and Germany, ensuring reliable product performance. We keep innovating to maintain sound business development and warmly welcome domestic and overseas clients to visit our factory and explore custom OEM/ODM cooperation opportunities.
Core Advantages of Xierge CNC Precision Nozzles
- Flawless Sealing Cone Machining: Our Japanese Star CNC Swiss-type lathes precisely machine complex sealing cones and angles in a single operation, guaranteeing absolute leak-proof engagement with valve seats.
- Ultra-Tight Coaxiality Control: By completing complex geometries in one continuous setup, we maintain concentricity tolerances within 0.003mm, preventing spool binding and ensuring smooth linear actuation.
- Superior Surface Finishing: Equipped with advanced cylindrical grinders, we achieve mirror-like finishes (Ra 0.2) on critical sealing diameters, significantly reducing friction and fluid bypass.
- High-Pressure Material Mastery: We strictly select 17-4PH and 316L stainless steel, applying controlled heat treatment to provide superior wear resistance and corrosion protection against aggressive fluids.
- Micro-Burr Elimination Protocols: To prevent valve jamming, we utilize precision back-chamfering and thermal deburring techniques to completely remove burrs from micro cross-holes and internal grooves.
- Ultra-Clean Ultrasonic Washing: Every valve core passes through our dedicated industrial cleaning machines to remove 100% of micro-debris and cutting fluids, ensuring zero contamination in hydraulic or medical systems.
- 3-Decade OEM/ODM Innovation: Since 1990, we have continuously innovated, providing DFM (Design for Manufacturing) optimization for custom valve cores, scaling seamlessly from rapid prototyping to mass production.
Payment Methods & Global Logistics Solutions
Secure International Payment Terms:
To facilitate smooth B2B international trade, we offer flexible and secure payment options. For mass production orders of CNC Precision Nozzles, we accept standard T/T (Telegraphic Transfer) with a 30% advance deposit and 70% balance before shipment. For large-scale automotive or industrial supply contracts, we are fully capable of processing Irrevocable Letters of Credit (L/C) at sight. For initial prototyping, sample orders, or custom tooling fees, PayPal and Western Union are also available to expedite the process.
Global Logistics & Protective Packaging:
We provide comprehensive end-to-end shipping solutions under FOB, CIF, and DAP Incoterms. For urgent prototypes or small batches, we utilize expedited international couriers such as DHL, FedEx, and UPS. For bulk mass production, we offer highly competitive sea freight (LCL/FCL) and air cargo rates through our trusted global forwarder network. Recognizing that valve cores are precision components with delicate sealing cones and micro-features highly susceptible to impact and oxidation, we utilize specialized packaging: each core is individually wrapped in VCI (Volatile Corrosion Inhibitor) anti-rust paper, secured in custom EPE foam slots or blister trays to prevent contact, and packed in sturdy export-grade cartons or wooden cases to ensure zero deformation during international transit.
FAQ
The sealing cone angle and surface finish are critical for leak prevention. We machine the cones directly on our Star CNC Swiss-type lathes using specialized profiling inserts, followed by precision cylindrical grinding where required. We then utilize imported Japanese optical comparators and CMMs to verify the exact cone angle, straightness, and circularity.
Micro cross-holes in valve cores are notorious for trapping internal burrs. We utilize sharp, specialized carbide drills with optimized pecking cycles on our live-tooled Swiss lathes. For absolute burr-free requirements, we employ Thermal Energy Method (TEM) deburring, followed by rigorous ultrasonic cleaning and borescope inspection to guarantee a 100% clear internal path.
For highly corrosive or biocompatible environments, such as medical gas or surgical fluid control, we highly recommend 316L stainless steel or 17-4PH. 316L offers excellent corrosion resistance, while 17-4PH provides superior mechanical strength and wear resistance after precipitation hardening. We can also coordinate passivation or electropolishing.
Long, slender spools are prone to measurement errors if clamped improperly. We utilize imported German and Japanese Coordinate Measuring Machines (CMM) with precision V-block supports. By rotating the spool on the V-blocks and mapping multiple diameters with micro-probes, we accurately calculate the coaxiality without applying clamping force that could induce artificial deflection.
Yes. Our Star CNC Swiss-type lathes are equipped with synchronized sub-spindles and live tooling. This allows us to part off the component, transfer it to the sub-spindle, and machine internal threads, back-face relief grooves, and micro-details in the same continuous cycle, ensuring perfect concentricity.
Ferrous materials can become magnetized during machining. For hydraulic and pneumatic applications where fluid cleanliness is paramount, all steel valve cores pass through an industrial demagnetizer at the end of the production line. We verify the residual magnetic field using a gaussmeter to ensure it falls within acceptable limits before packaging.
