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Stainless Steel Quick Connect Fitting

This stainless steel quick connect fitting is a high-precision fluid pipeline connector designed for pneumatic systems, hydraulic equipment, automated production lines and fluid transmission workstations. Made of corrosion-resistant stainless steel and processed via precision CNC turning, it features external thread connection, hexagonal wrench positioning and multi-stage barb hose joint structure. It delivers leak-proof, stable fluid transmission connection for air pipes, liquid pipelines and equipment fluid circuits, ensuring reliable sealing and long service life in long-cycle industrial fluid transmission scenarios.

Quick Info:
  • Machining Process: Precision CNC turning, drilling, deburring, surface polishing optional
  • Material: SUS304 Stainless Steel (SUS316L customizable for corrosive media)
  • Accuracy: ±0.01 mm, ultra-precision version up to ±0.005 mm
  • Surface Finish: Bright polished, matte finish optional
  • Features: Excellent anti-corrosion, leak-tight sealing, easy installation, high pressure resistance
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We specialize in custom CNC machining of stainless steel pipeline fittings. Our workshop is equipped with high-precision CNC lathes, turn-mill composite centers, internal & external deburring machines and full surface treatment facilities. With years of experience manufacturing quick connect fittings, pipe adapters and hose connectors, we can stably control core dimensional tolerances within ±0.01 mm. We provide one-stop services including drawing optimization, CNC turning, precision deburring, surface polishing and full finished-product inspection, serving clients engaged in pneumatic automation, hydraulic machinery, chemical fluid equipment and food processing industries.

Core Advantages

  • Powerful Corrosion Resistance: SUS304 stainless steel raw material resists rust, oxidation and weak acid & alkali liquid erosion, suitable for wet, humid and chemical fluid working environments.
  • Zero-Leak Sealing Performance: Precision CNC machined thread and barb structure perfectly match standard hoses and pipe nuts, effectively avoiding gas or liquid leakage under working pressure.
  • Easy & Fast Assembly: Integrated hexagonal wrench surface for convenient tightening without slipping; stepped barb design locks rubber/plastic hoses tightly for quick plug-and-play installation.
  • High Pressure Resistance & Durability: Integrated one-piece turning structure with no assembly gaps, capable of sustaining stable high fluid pressure, resisting cracking and deformation during long-term repeated disassembly.
  • Fully Customizable Non-standard Sizes: Custom thread standards, thread diameters, barb outer diameters and overall lengths available to match all kinds of pneumatic and hydraulic pipeline layout requirements.

Common Applications

Pneumatic Automation Equipment: Air pipe quick connectors for robotic arms, production line air cylinders and pneumatic fixtures
Hydraulic Machinery: Low-pressure hydraulic pipeline adapters, small hydraulic unit hose joints
Food & Beverage Processing: Sanitary fluid transmission connectors for beverage filling and food cleaning equipment
Chemical & Medical Equipment: Corrosion-resistant liquid pipeline fittings for laboratory instruments and medical fluid circuits
General Industrial Fluid Lines: Air and water pipe connecting joints for assembly stations, testing equipment and packaging machines

Specification Table

ParameterDetails
Raw MaterialSUS304 Stainless Steel (SUS316L available upon request for corrosive fluid)
Machining ProcessPrecision CNC turning, optional turn-mill composite processing, internal/external deburring, surface polishing
Dimensional ToleranceStandard ±0.01 mm, custom ultra-precision ±0.005 mm
Surface FinishMirror bright polishing, matte as-machined finish (Optional)
Thread StandardMetric, BSP, NPT, PT thread customizable
Barb Size RangeCustom per customer drawings, common range: 4 mm–20 mm
Thread Size RangeCustom per customer drawings, common range: 1/8" – 1/2"
Working Pressure Range0–1.6 MPa (custom reinforced structure for higher pressure)
Working Temperature Range-20℃ ~ +180℃
Quality ControlCMM dimensional inspection, thread gauge test, pressure leakage test, surface finish inspection

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our information is kept confidential and reviewed directly by our engineering team. We typically respond within 1 business day with practical technical feedback.