Camozzi Launches CARTfit 7700 Push-In Cartridge Connections

Camozzi Automation has introduced the CARTfit Series 7700, a one-piece push-in cartridge that replaces traditional external push-to-connect fittings by integrating the connection directly into the housing. Installed using a controlled press-in process, the cartridge creates a permanent, low-profile tube interface, reducing part count and assembly steps. Designed for use in automation, transportation, beverage and cooling, and medical systems, the CARTfit 7700 addresses space constraints while maintaining reliable sealing and retention.

CARTfit Series 7700 replaces traditional push-to-connect fittings with a compact press-in cartridge for multiple industries. Image used courtesy of Camozzi

Push-to-connect fittings are honestly a dime a dozen. However, it’s not uncommon for them to get in the way, especially with some of the larger sizes. Camozzi Automation has developed a unique solution for these small fittings with its CARTfit Series 7700, a one-piece push-in cartridge designed to create a secure, repeatable connection between a housing and a tube. The cartridge is intended for use within engineering polymers, brass, or aluminum and is installed using a simple press-in process.

The CARTfit Series 7700.

The CARTfit Series 7700 shifts the push-to-connect function into the housing itself. Instead of attaching an external fitting, the cartridge is pressed into a machined hole cavity. Note the user manual for specific machining requirements. Here, it becomes the permanent tube interface. The tube is then inserted directly into the housing, with the cartridge providing retention and sealing at that location.

The CARTfit Series 7700 is pressed into a machined housing cavity, turning the housing itself into the push-to-connect tube interface. Image used courtesy of Camozzi

The CARTfit Series 7700 replaces multi-component tube fittings with a single press-in cartridge, reducing the number of parts required at the tube-to-housing interface. The cartridge accepts 4, 6, and 8 mm external tube diameters and installs into cavities machined in polymer, brass, or aluminum housings. Once installed, the cartridge provides a fixed sealing interface for push-in tubing.

The Four Application Variants

The new push-in fittings come in a several variants. 

Automation

In automation equipment, the CARTfit Series 7700 is used in pneumatic, vacuum, and motion-control circuits where assemblies are tight and installation time is critical. The press-in cartridge helps keep tubing routes clean inside compact cells and avoids the extra steps that come with multi-piece fittings.

Transportation

For transportation applications, the Series 7700 is designed for cabin and body systems that experience vibration, temperature changes, and long service intervals. Once installed, the cartridge holds the tube in place and maintains sealing for pneumatic and fluid lines used throughout the vehicle interior and in auxiliary functions.

Beverage and Cooling

In beverage dispensing and cooling systems, the focus shifts to cleanliness. The cartridge installs without generating debris and forms a sealed flow path as soon as the tube is inserted. That makes it suitable for cooling loops and beverage lines where contamination during assembly is a concern.

Medical

Medical versions of the Series 7700 are used in systems such as anesthesia delivery and medical gas distribution. These medical variants are built to support clean, controlled connections and are compatible with regulated tubing and fittings commonly specified for medical equipment.

The W7700 can be used in specialized medical equipment that implements microfluidics and analytical technology within a confined, unique space. Image used courtesy of BMT Fluid Control Solutions

Installation and Assembly Process

Installation of the CARTfit Series 7700 follows a controlled press-in process. The cartridge is aligned with a clean cavity and inserted using a dedicated press tool that applies a linear force until the end of the stroke is reached. Proper alignment and cleanliness are emphasized to ensure sealing performance.

Installation process for the 7700 series cartridge. Image used courtesy of Camozzi

Once the cartridge is seated, the tube is simply pushed in as with any push-to-connect fitting, locking and sealing right away. Camozzi also offers optional tooling for automated leak checks, allowing testing without relying on manual inspection.

Camozzi’s new CARTfit series 7700 is a unique and simple solution for a lower-profile push-to-connect fitting. By combining multiple connection functions into a single press-in component, the CARTfit Series 7700 cartridge design can be used in automation equipment, vehicle systems, cooling circuits, and medical devices where installation consistency and space constraints are design requirements.