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+86 0755 2102 3457
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Pneumatic Fittings, Adaptors, Connectors and Couplings (Air Fittings)

Pneumatic Fitting is also referred to as Pneumatic Adaptors & Couplings or Air Fittings & Connectors, which is one type of Pneumatic accessories be used to connect pneumatic tube, pipe or hose and each connection requires specific fittings in pneumatic system. Pneumatic fitting system is a specialized technology that uses compressed air as a medium to drive and control machinery. To perform different functions, there are vast number of types of Pneumatic Pipe Fittings, containing Adapter, Coupling, Union, Cap, Plug, Elbow, Tee, Cross, Reducer, Nipple, Valve and more. With the advantages of energy saving, pollution-free, high efficiency, low cost, safety and reliability, and simple structure, CNC Machining Pneumatic Fittings is widely used in various machinery and production lines. Pneumatic connectors, adaptors and fittings, as important pneumatic components, must have reliable performance, because low-quality pneumatic fittings can cause huge losses to the mechanical industry.

Pneumatic Fittings (Air Fittings), Adaptors, Couplings.jpg

High Quality & Cost Effective CNC Machined Pneumatic Fittings (Air Fittings)

Dajin Precision - Specialist in CNC Machining Parts manufacturing, extensively offers a wide assortment of pneumatic fittings, air couplings, connectors and adapters. With the connection type and function performs, huge selection of all types of pneumatic fittings (air fittings) are available here, from push-on and push-in Fittings to connect couplings to pneumatic tubing fittings to flow control valves and accessories. High quality CNC turned pneumatic air fittings of all kinds are offered to worldwide customers at the best prices in whole market! Our precision Pneumatic Fittings produced to your drawing with advanced machining technology including CNC lathes, CNC milling, CNC grinding, can be compatible with the rest of your Pneumatic system perfectly.

Basic Specifications of our CNC Machining Services for Pneumatic Fittings

CNC Machining & Turning Pneumatic Fittings & Air Fittings in an array variety of sizes, body styles, materials (plain brass, nickel plated brass, plastic, stainless steel and more), thread types depending on customer specifications and requirements can be manufactured here to fit in for a number of mechanical industrial applications and processes!

Product Name

Pneumatic Fittings (Air Fittings)

Connection Types of Pneumatic Fittings (Air Fittings)

  • Compression Pneumatic Fittings (Bite-type Fittings, Mechanical Grip Fittings, Flare Fittings)

  • Pneumatic Hose Fittings

  • Pneumatic Push Fittings (Push-In Fittings, Push-On Fittings)

  • Crimp Fittings

  • End Fittings (Clamp Ends, Plain Ends)

  • Quick Connect Pneumatic Fittings (One-Touch Instant Fittings)

  • Threaded Fittings

  • Pneumatic Tube Fittings

  • Screw-In Fittings

  • Push-To-Lock Fittings

Function Types of Pneumatic Fittings (Air Fittings)

  • Extend or terminate pipe lengths: Adapter, Coupling, Union, Cap, Plug

  • Add or change connect direction: Elbow, Tee (Y-Shape), Cross (X-shape)

  • Provide special connections or functions: Nipple, Valve

  • Connect pipes of smaller size: Reducer (Reducing Sleeve, Reducing Nipples)

Thread type of Pneumatic Fitting

Pipe, British pipe, Metric, SAE Straight Thread

Application of Pneumatic Fittings

  • Pneumatic Control

  • Factory air Automation

  • Process control and Instrumentation plus Fluid Transfer

  • Pharmaceutical

Main Materials

  • Stainless steel: SS201, SS301, SS303, SS304, SS316F, SS316, 420, etc.

  • Steel: Carbon steel, alloy steel, mild steel, 4140, 4340, Q235, Q345B, 20#, 45#, etc.

  • Aluminum: AL6061, AL6063, AL7075, AL5052, AL6082, etc.

  • Brass: HPb63, HPb62, HPb61, Hpb59-1, H59, H62, H68, H80, H90, etc.

  • Copper: C11000, C12000, C36000, etc.

  • Thermoplastic : PVC, POM, NYLON, etc.

  • Alloy: Zinc alloy, Aluminum alloy, etc.

Machining Selection

CNC machining / lathing / milling / drilling / turning /grinding /

Surface treatment

  • Stainless Steel: Polishing, Passivating, Sandblasting, Laser Engraving

  • Steel: Zinc plating, Nickel plating, Chrome plating, Black oxide, Heat treatment, Carburized, Powder coating

  • Aluminum: Clear anodized, Color anodized, Sandblast anodized, Brushing, Polishing, Chroming

  • Brass: Nickel plating, Chrome plating, Polishing

  • Plastic: Painting, Chrome plating, Polishing, Sandblasting, Laser engraving

Tolerance Standard

High-precision tolerances ranging from +/-0.001”-0.005”, depending on customer specs

OEM/ODM Service

  • Custom Design Accepted

  • Design As Customer’s Requirements Offered

  • Free Sample Before Manufacturing Provided

Applied Software



  • ISO9001:2015

  • ROHS, SGS and Environment Protection

  • Air Pressure or P.S.I. Requirement


  • Eco-friendly PP bag/PE foam/Carton boxes or Wooden boxes

  • As customer's specific requirements


  • Less than 50kg, you could choose express, such as DHL, UPS, FedEx, TNT and EMS.

  • From 50kg to 200kg, you could choose to send by air. (fast and safe, but expensive)

  • More than 200kg, you may consider to send by sea. (cheapest, but long transit time)

  • We can also deliver as client’s requirement

Advantages of Our CNC Machining Services for Air Fittings

  • Wide Range - Vast number of types of pneumatic fittings in materials, shapes, functions, sizes

  • Top Grade - High quality materials, high-precision tolerances, professional team

  • Excellent Performance - Great pressure-holding capacity, corrosion resistance, tube compatibility

  • Best Prices - Competitive pneumatic fitting prices, cost-effective customized order

  • OEM/ODM - Professional CNC turning service for complex customized pneumatic fittings

  • Awesome Services - One-stop service from quotation, design, production, quality inspection, packaging, delivery, to after-sales

Related Product

DAJIN specializes in production of quality machined parts, precision turned parts, offering professional machining services at competitive price and on timely delivery. With our extensive machining capabilities, we produce the most challenging precision machined parts covering all Industries especially in mass production in automotive industry