FlexBlow 2 allows easy mold changes

A vision control system and NIR wall-thickness monitoring system are included on the stretch blow molder.
March 18, 2026

Key Highlights

  • The FlexBlow 2 can produce up to 3,000 containers per hour with mold sizes up to 1.6 gallons and neck diameters from 12mm to 120mm.
  • Features include magnet-mounted molds that can be changed in as little as five minutes and an integrated vision system for quality inspection.
  • Additional innovations include NIR wall-thickness monitoring, leak testing, automatic lamp positioning, and servo-assisted setup to reduce changeover times.
  • FlexBlow manufactures seven all-electric and hybrid machines, with over 500 units in service worldwide, primarily serving the North American market.
  • The company produces 85 percent of its components in-house, emphasizing quality control and customization for diverse container manufacturing needs.

By Ron Shinn 

Stretch blow molding machine builder FlexBlow unveiled the two-stage, all-electric FlexBlow 2 at K 2025.

The new machine is aimed at products such as food jars as well as dairy, alcohol and personal care containers. It can accommodate two-cavity molds for containers as big as 1.6-gallons with neck sizes ranging from 12mm to 120mm. 

Maximum output is 3,000 containers per hour. 

Regional sales manager Rokas Balsys said a new feature is that molds, which are mounted with magnets, can be changed in as little as five minutes. The platform provides access from the front of the machine.

Another new feature is an integrated vision control system that inspects each container from the top and side and automatically rejects questionable products. 

There is also an integrated near-infrared (NIR) wall-thickness monitoring feature, leak test system, automatic lamp positioning and servo-assisted setup that the company said can save up to 30 minutes in tool changes. 

FlexBlow manufactures seven all-electric machines with the FlexBlow 2 being the second-smallest. Balsys described it as the company’s most versatile blow molder. It also produces hybrid machines in three sizes. 

The family-owned company, based in Lithuania, has been building blow molding machines since 1994. It has more than 500 in service worldwide. 

FlexBlow also builds 85 percent of its components in-house. 

North America is FlexBlow’s biggest market. 

Contact: 

FlexBlow, Kretinga, Lithuania, 370-445-51431, https://flexblow.com

About the Author

Ron Shinn

Editor

Editor Ron Shinn is a co-founder of Plastics Machinery & Manufacturing and has been covering the plastics industry for more than 35 years. He leads the editorial team, directs coverage and sets the editorial calendar. He also writes features, including the Talking Points column and On the Factory Floor, and covers recycling and sustainability for PMM and Plastics Recycling.

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