Jinqi Pneumatic Straight Through Butt Connector PU-56810121416mm Quick Insertion Trachea Connector in Blue PU with Low Shrinkage POM and PBT Material for Automation Equipment
Jinqi PU Straight Through Pneumatic Quick Connector for Automation Systems

This straight through butt connector from Jinqi is designed for creating reliable pneumatic connections in automated industrial environments. Its quick insertion design allows for efficient assembly and maintenance of air lines using polyurethane (PU) tubing. The connector is constructed from specific engineering plastics chosen for their dimensional stability and is compatible with a standard range of tube diameters commonly found in factory automation, machine tools, and processing equipment. It serves as a fundamental component for systems requiring controlled air flow or fluid transfer.
Features and Construction

The connector's design prioritises a secure fit and ease of use in professional settings. Its construction and specifications are tailored to meet the demands of consistent pneumatic operation within defined parameters.
Material and Build
The body of the connector is made from low shrinkage POM (polyoxymethylene) and PBT (polybutylene terephthalate). These materials are selected for their mechanical strength, resistance to creep, and ability to maintain tolerances. The sealing mechanism incorporates imported O-rings, which are critical for ensuring an airtight connection once the PU tubing is inserted into the fitting.
Size and Practical Fit
This connector model is specified to accept PU tubing with seven different outer diameters: 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, and 16mm. Each size is clearly marked (e.g., PU-04 for 4mm), allowing users to quickly match the connector to their existing tubing. This range covers many standard sizes used in pneumatic control circuits.
Uses and Placement

This component is integral to building and maintaining pneumatic networks. Its application is focused on environments where reliability and speed of connection are important factors.
Event or Professional Use
Its primary use is in industrial and factory automation equipment. This includes assembly lines, packaging machinery, CNC machine tools, and material handling systems where pneumatic actuators, cylinders, or valves are controlled. The specified 0-60°C operating temperature and 0-1 MPa pressure rating define its suitable working environment.
Everyday Home Use
This product is not typically intended for everyday home or DIY use. It is an industrial component designed for integration into professional-grade automation and machinery where specific performance criteria must be met.
Benefits and Buying Value

The value of this connector lies in its specification-matched design for automation contexts. It provides a focused solution for a specific technical need.
Reuse and Low Maintenance
The quick-connect design facilitates easy disconnection and reconnection, which can simplify maintenance procedures or system reconfiguration. The material choice of POM and PBT contributes to long-term dimensional stability, helping the connector maintain its grip and seal over repeated use cycles.
Why Choose This Product
This connector offers a clearly defined solution for connecting standard PU tubing in automation applications. The availability across seven specific tube sizes (4mm to 16mm OD) allows for precise matching to system requirements. Its construction from named engineering plastics (low shrinkage POM and PBT) and use of imported O-rings indicate a focus on component reliability for industrial settings.


