synflow3® Technology is suitable for cold runner or differential packing.

Press Release Summary:

synflow3® Technology allows user to test the functionality on the actual tool and offers same control equipment can be used on multiple systems. Unit enables molders to quickly and easily define the complete molding parameters for a specific application. Product offers the ability to stop the pin and hold it at position mid-stroke. Pin control technology can be used for activeGate® enabled system using external hook ups.

Original Press Release:

Synventive Announces the New synflow® Technology

Molders can now slow the opening of the pin for a set distance and hold at that position until closing, or alternate different moves within a cycle.

Synventive is pleased to introduce their new synflow3® technology that gives molders all the abilities of previous versions of synflow® and much more. Synflow technologies help molders eliminate cosmetic defects on sequentially filled parts caused by sudden flow front accelerations and stagnations created when the delayed pins open. This next generation synflow brings more advanced features, which allow molders to quickly and easily define the complete molding parameters for a specific application.

The third generation of synflow was developed with simplicity of use in mind and has dramatically increased functionality to greatly improve the performance and user experience of synflow. The most significant addition to synflow’s functionality is the ability to stop the pin and hold it at any position mid-stroke. This allows for individual flow rate control of each nozzle to balance family molds or fill complex multi-gated geometries. Alternating opening profiles can even be programmed offering the ability to pre-fill cold runners or create differential packing within complex multi-gated parts.

synflow Features:

  • No connection to the injection molding machine necessary
  • Test the functionality on the actual tool without committing to additional equipment
  • Same controls equipment can be used on multiple systems
  • Pin sequencing is still done through current process simplifying use for machine operator
  • New software platform designed for ease of use
  • Ability to stop the pin mid-stroke to independently regulate filling or packing of each nozzle
  • Ability to program alternating moves allows for prefilling of cold runner or differential packing

The most significant difference between synflow and other pin control technologies currently on the market is the ability to easily upgrade to it after parts have been molded. During mold sampling if it is determined through a brief trial that synflow would benefit the process the technology can be installed and running in a matter of minutes. All Synventive valve gated hot runners can come standard with SVG+®, which includes position sensors that allows for the simple upgrade. The synflow technology can be added to any activeGate® enabled system through simple external hookups. Molders no longer need to commit to these flow control technologies for the life of the tool not knowing if they will ever actually be needed.

About Synventive

Synventive, a business of Barnes Group Inc. (NYSE: B), is one of the world’s leading manufacturers of innovative hot runner systems and controls for injection molded plastic parts. Since the 1970’s, Synventive has proudly met the challenging requirements of global customers in automotive, electronic, medical, and consumer markets.

Synventive has manufacturing operations in North America, Europe and Asia, each with its own manufacturing, design, and research and development departments. North America is served by the company’s Peabody, Massachusetts facility; Europe by the company’s Bensheim, Germany facility; and Asia by the company’s Suzhou, People’s Republic of China facility. Additionally, Synventive has sales and service offices and/or representatives in 26 countries. For more information, please visit

About Barnes Group

Founded in 1857, Barnes Group Inc. (NYSE: B) is an international industrial and aerospace manufacturer and service provider, serving a wide range of end markets and customers. The highly engineered products, differentiated industrial technologies, and innovative solutions delivered by Barnes Group are used in far-reaching applications that provide transportation, manufacturing, healthcare products, and technology to the world. Barnes Group’s skilled and dedicated employees around the globe are committed to achieving consistent and sustainable profitable growth. For more information, visit

Download Spec Sheet

All Topics