HB-Therm presents Flow-6 – a new chapter in precision temperature control

At K 2025 in Düsseldorf, Swiss manufacturer HB-Therm unveiled the latest evolution of its technology – the Flow-6. For decades, HB-Therm has been known for setting new benchmarks in temperature control. With Flow-6, the company is now expanding its successful Series 6 into flow measurement and flow control, creating a new standard for accuracy and integration in plastics processing.

As HB-Therm’s exclusive partner in Australia and New Zealand, Comtec is proud to bring Flow-6 to local processors. For our customers, this launch represents more than just a new product – it’s a smarter way to ensure process reliability, part quality and energy efficiency.

A breakthrough in ultrasonic precision

Flow-6 uses ultrasonic technology to measure flow rates with exceptional accuracy – even at extremely low levels, starting from just 0.4 L/min. With a measuring range from 0.4 to 40 L/min, it adapts to a wide variety of moulding applications. Backed by 20 years of ultrasonic expertise and a lifetime warranty on the measuring sections, Flow-6 gives processors confidence that their cooling circuits are always under control.

Compact, intelligent, and designed for integration

One of Flow-6’s key strengths is its compact footprint. At only 240 mm wide and 165 mm deep, it fits directly into injection moulding machines without sacrificing space. Depending on the version – 4, 6, or 8 circuits – the height ranges from 264 to 484 mm. With options for water up to 100, 160, and 180 °C, each circuit is monitored individually, giving processors early warnings of deviations before they turn into costly quality issues.

Availability and digital control

The first Flow-6 flow meters will be available from June 2026, followed by flow controllers in January 2027. Control is handled via OPC UA with the Gate-6 interface server, which also doubles as a remote controller for HB-Therm’s Thermo-6 units – giving operators a single, integrated platform for temperature and flow management.

Expanding the proven Thermo-6 family

Alongside Flow-6, HB-Therm is also expanding its Thermo-6 temperature control series. New compact pumps deliver up to 65 L/min at 180 °C, while additional 32 kW heating capacity models will be introduced from June 2026. These updates strengthen Thermo-6’s reputation for efficiency, reliability, and lifetime value.

What this means for Comtec customers

At Comtec, we know that precise temperature and flow control is the key to stable production, consistent cycle times, and reduced scrap. By introducing Flow-6 to Australia and New Zealand, we can now offer our customers:

• Measurement accuracy down to 0.1 °C stability
• Early detection of cooling circuit issues
• Space-saving integration into existing moulding cells
• Industry 4.0-ready connectivity via OPC UA
• HB-Therm’s lifetime warranty – supported by Comtec’s local service

See Flow-6 at K 2025

📍 Hall 10, Stand E34 – HB-Therm will showcase Flow-6 alongside Thermo-6, demonstrating how together they make production processes safer, more efficient, and more economical.