NingboLiqin Industry&Trade Co., LtdWhatsAPP:+86 18757148656zhouli@chinaliqin.com

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High-Precision CNC Machined 304 Stainless Steel Custom Adapter / Fitting Component

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LabelValue
材料customized
Drawing format2D(PDF/CAD/DWG)、3D(STEP/IGES/GLB)
Specification
Processing Precision0.01mm
Production Capacity100000/year
Process Usage
Surface FinishCustomized Finishing

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Description
Additional Information

Product Description

thing describe
Design/Size According to customer's drawings or samples
Material

Aluminum: 6061, 6063, 6082, 7075, 5052, A380, etc.

Stainless steel: SS201, SS301, SS303, SS304, (SS304 food grade), SS316, SS316L, SUS430, SS416

Steel: low carbon steel, carbon steel, 4140, 4340, Q235, Q345B, 20#, 45#, etc.

Alloy steel (15Cr, 20Cr, 42CrMo), etc.

Brass: HPb63, HPb62, HPb61, HPb59, H59, H68, H80, H90, etc.

Copper, bronze, copper, etc.

Titanium: TC4 (TiAl6v4, Grade f5)

Plastic: ABS, PC, PE, POM, Delrin, Nylon, Plastic, PP, PEI, Peek, etc.

process CNC machining, turning, milling, stamping, turning, cutting, etc.
Delivery time Samples usually take 3-7 working days, and mass production will be carried out according to the detailed quantity after sample approval.
Surface treatment Transparent anodizing, color anodizing, chemical coating, brushing, passivation, polishing, chrome plating, sandblasting, laser engraving, zinc plating, black oxide, nickel plating, chrome plating, carburizing, heat treatment, painting
Test equipment Coordinate measuring machine (CMM), 2D measuring instrument, projector, altimeter, micrometer, thread gauge, hardness tester, caliper, pin gauge, salt spray tester, concentricity measuring instrument, spectrometer.
Quality Management System

ISO 9001:2015
IATF 16949:2016

ISO 13485:2016

application Auto parts, machinery parts, computer parts, medical parts, home appliance parts, electrical parts, electronic product parts, electronic parts, generator parts, alternator parts, generator parts, stationery, power switches, micro switches, construction, merchandise and A/V equipment.
File Format Solidworks, Pro/Engineer, CAD, PDF, JPG, DXF, IGS
Package Inner plastic bag, outer standard carton, or as per customer's requirements
Shipping Sea freight, air freight, international express (DHL, FedEx, TNT, UPS).
Serve The professional foreign trade team provides enthusiastic and fast response services.
Dimensional inspection report/Raw material certificate/Surface treatment report/Engineering drawing
RoHS report/Salt spray test report/Hardness test report

Product Overview & Strategic Value

Engineered for Mission-Critical Reliability

This custom 304 stainless steel adapter (Part No. ZD.8.177.051) is a high-precision engineered component designed for critical fluid management, automated machinery, and sanitary processing systems. Designed with complex internal stepping, a precise 3-hole flow distribution pattern, and integrated wrench flats, this component acts as a key connector in high-pressure or sanitary environments.

Strategic Value for OEMs and Tier-1 Buyers

  • Extended Equipment Lifetime: Machined from high-grade 304 stainless steel, offering superior resistance to chemical corrosion, oxidation, and mechanical wear.

  • Leak-Free System Integration: Strict tolerance control ensures seamless alignment and airtight/watertight sealing with mating parts, reducing maintenance downtime.

  • Streamlined Assembly: Integrated side wrench flats simplify installation, allowing technicians to apply precise torque without damaging the outer profile.

  • Regulatory & Food-Grade Compliance: The inert properties of 304 stainless steel make this fitting ideal for hygienic, food-grade, and pharmaceutical production lines.

Manufacturing Process & Quality Control

Our state-of-the-art CNC machining process bridges complex geometric design with repeatable volume production.

  1. Precision Material Sourcing: Certified 304 stainless steel raw stock undergoes initial spectrographic inspection to verify material purity and strength.

  2. Multi-Axis CNC Machining: Utilizing multi-tasking CNC turning and milling centers, all cylindrical profiles, internal stepped bores, and wrench flats are machined in minimal setups to eliminate concentricity errors.

  3. Micro-Hole Drilling & Chamfering: The specialized 3-2.8mm flow holes on a 7mm pitch circle diameter (PCD) are precision-drilled, followed by automated chamfering (0.3×45°).

  4. Deburring & Surface Refinement: Thorough manual and thermal deburring removes all micro-burrs, ensuring surface roughness levels reaching Ra 1.6 on critical sealing surfaces.

  5. Quality Assurance (QA):

    • Dimensional Inspection: Verified against GB/T 1804-m medium tolerance standards using optical coordinate measuring machines (CMM) and plug gauges.

    • Surface Roughness Testing: Surface profiling to ensure compliance with Ra 1.6 / Ra 3.2 requirements.

Manufacturing Challenges & Our Solutions

Challenge 1: Burr Removal in Intersecting Internal Bores

  • The Risk: Drilling small internal holes (3-2.8mm) into stepped internal chambers naturally creates micro-burrs at the intersection points. Loose burrs can dislodge during operation, contaminating fluid lines or damaging downstream pumps and valves.

  • Our Solution: We implement a customized multi-step internal deburring process combined with ultrasonic cleaning. Every internal passage is inspected with micro-borescopes to guarantee 100% burr-free fluid channels.

Challenge 2: Controlling Thin-Wall Concentricity & Tight Tolerances

  • The Risk: Machining internal stepped bores (10mm, 12.5mm, 16.5mm, 21.1mm) alongside an outer diameter of 25mm creates varying wall thicknesses, making the part prone to deformation during clamping or high-speed cutting.

  • Our Solution: We utilize custom soft-jaw chucking systems and optimized, low-vibration cutting parameters. By balancing tool pressure and controlling thermal expansion, we maintain precise concentricity across all stepped diameters.

Frequently Asked Questions (FAQ)

Q1: Can this component be customized to different dimensions or thread standards?

A: Yes. While this part is manufactured according to print ZD.8.177.051, we specialize in full OEM/ODM customization. We can adjust outer diameters, internal bore configurations, thread types (NPT, BSPT, Metric), or add specialized surface treatments based on your drawings.

Q2: What grade of stainless steel can be used if 304 does not meet our chemical exposure requirements?

A: If your application involves harsh acidic environments or marine conditions, we can manufacture this part using 316L Stainless Steel, Duplex Stainless Steel, or specialized alloys like Titanium and Inconel.

Q3: How do you verify dimensional accuracy before shipment?

A: Every production batch undergoes strict First Article Inspection (FAI) and in-process statistical quality control. We provide Full Dimensional Inspection Reports, Material Test Certificates (EN 10204 3.1), and Surface Roughness Reports upon request.

Q4: What is your typical production lead time for custom orders?

A: Prototype samples are typically ready within 7 to 10 business days. Full production orders usually take 2 to 4 weeks, depending on batch quantity and custom finishing requirements.

📈 Optimize Your Line's Reliability with a Single-Source Expert

Maximize your machinery's lifespan with a single-source manufacturer. Leverage our advanced vacuum heat treatment, state-of-the-art multi-axis CNC cells, and reliable finishing capabilities to perfectly sync your automated mechanisms.

[Contact Our Engineering Team Today] Upload your complete set of assembly drawings for a confidential technical review and a highly competitive B2B quote within 24 hours.

Contact Us

Ready to start your next project with Liqin Manufacturing?

Contact us today to learn more about our services and how we can help you achieve your goals.

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longshengmfg-logoNingbo Liqin Industry&Trade Co., Ltd.
  • Rapid engineering feedback within just 2 business days.

  • ISO 9001 and IATF 16949 Certification.

  • Materials including aluminum, stainless steel, steel, and brass available, with surface finish options such as electrophoresis, anodic oxidation, electroplating, and powder coating.

  • Cost-effective mass production with advanced equipment.

  • Custom orders accepted, starting from prototypes.