High-tolerance threaded metal connectors engineered for fluid power transfer under dynamic pressure surges. CNC-turned from cold-drawn bar stock or forged blanks, featuring roll-formed threads for fatigue resistance exceeding 10M impulse cycles.
Technical Specifications & Compliance
|
Parameter |
Specification Standard / Range |
|
Material Grades |
Stainless Steel (316/316L, 1.4404), Carbon Steel (12L14, 1045), Brass (C36000) |
|
Thread Standards |
SAE J514 (UN/UNF), ISO 1179 / BSPP, ISO 6149 (Metric), NPT (ANSI/ASME B1.20.1) |
|
Nominal Pressure (PN) |
315 bar – 630 bar (size-dependent) |
|
Surface Treatment |
Zinc-Nickel plating (≥ 1,000h red rust resistance, ASTM B841), Passivated (ASTM A967 for 316L) |
|
Dimensional Tolerance |
ISO 2768-mK / Thread tolerance Class 6G/6H (GO/NO-GO 100% verified) |
|
Operating Temp. |
-40°C to +120°C (elastomer dependent) |
|
Regulatory & Environmental |
RoHS 3 (2015/863/EU) Compliant, REACH SVHC Free, CMRT 6.x (Conflict Minerals) available |
Key Features
Roll-Formed Threads: Grain-flow integrity preserved; root radius controlled via optical profile projector, eliminating micro-cracking common in single-point chasing.
Controlled Sealing Face: Ra ≤ 0.8 μm surface finish on cone/face-seal shoulders, mating directly with standard EO/ORFS elastomeric rings without weeping.
Positive Lot Traceability: Heat-code laser-etched on hex flats, linked directly to mill test reports (EN 10204 3.1).
Burr-Free Internal Passages: Thermal deburring or high-pressure water jet post-machining prevents downstream hydraulic valve spool contamination.
Applications
Mobile Hydraulics: Excavator boom control blocks, loader steering gear pressure ports.
Industrial Presses: High-pressure hydraulic power unit (HPU) manifold tie-ins.
Marine Deck Machinery: Saltwater-exposed winch hydraulic drive lines (requiring 316L or Zn-Ni ≥ 1000h).
Automotive Test Benches: High-cycle impulse test rig fluid routing.
Customization
Non-Standard Geometries: Extended body lengths, integrated restrictor orifices (∅ 0.5 mm to ∅ 3.0 mm), or reduced-port configurations from 2D/3D CAD (STEP/IGES).
Alternative Platings: Zinc-iron, black oxide, or PTFE dry-film lubricant coating for thread anti-galling.
Laser Marking: Custom part numbers, QR codes, or heat numbers per OEM serialization rules.
Quality Control
Incoming Material: Spectrometer verification of chemical composition per heat lot prior to sawing.
In-Process: SPC monitoring on critical diameter (d2, d3) every 30 parts via multi-point air gauges.
Thread Verification: 100% GO/NO-GO ring/plug gauge check; CMM profile audit on first/last article (FAI per AS9102 / VDA 6.5 format available).
Lab Equipment: Keyence IM-8000 image dimension measurement system, salt spray test chamber (ASTM B117), surface roughness tester.
Manufacturing & Certifications
Machining Footprint: 24 multi-axis CNC sliding-head lathes (Star/Citizen) and fixed-head turning centers.
Capacity: 120,000 pcs/month across standard M14–M42 / 1/4"--1-1/2" range.
Quality Management: ISO 9001:2015 certified facility. PPAP Level 1–3 documentation package supported upon request.
Packaging & Delivery
Packaging: VCI anti-corrosion poly bags in heavy-duty double-wall corrugated cartons (max 15 kg/carton), or returnable plastic bins (KLT boxes) for local JIT hubs. Bulk count accuracy ± 0.1% via weight-counting scales.
Lead Time: Standard catalog items: 10–14 days. Repeat custom production: 3–4 weeks.
Global Logistics Fulfillment: Direct factory export (FOB/CIF) with regional 3PL partner coordination available for contracted annual volume / buffer release schedules.
Incoterms: FOB, CIF, or DDP.
FAQ & Sample Policy
Request a Quote (RFQ) / Sample Request
Submit technical parameters for commercial proposal or evaluation sample dispatch within 24 business hours:
Part Number / Standard Reference (e.g., SAE J514 Dash 08 male, or custom CAD drop)
Material (316L / 12L14) & Surface Spec
Annual Volume / Target Lot Size / Sample request indication (3–5 pcs)
Required Compliance / PPAP Level (Standard / Level 3 / IMDS)
Destination Port / DDP Postal Code
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