Metcal Introduces New 4-Zone Circuit Board Preheaters and Premium Board Holders

DOWNERS GROVE, Ill., Sept. 24, 2025 /PRNewswire/ -- Metcal, part of OK International and Dover (NYSE: DOV) and a leader in benchtop soldering for electronics and industrial manufacturing, today announced the global launch of its new PT4-4000 and PT4-8000 Series 4-Zone Circuit Board Preheaters and compatible circuit board holders.

Metcal specializes in precision hand soldering and fume extraction equipment used by the world's leading electronics manufacturers who make everything from mobile phones and personal electronics to military and aerospace technologies and life-saving medical devices. Powerful, precision preheaters are a core part of the "Metcal Benchtop," supporting both the production and repair of electronic circuit boards.

The new PT4 Series Preheaters deliver powerful, uniform heat using Metcal's Resistive Radiant Heat Technology, in which a ceramic plate radiates heat through the tempered glass surface of the heating zone. This design smooths and distributes heat evenly, eliminating hot spots and providing consistently precise thermal performance. These results make the PT4 Preheaters suitable for the most thermally demanding applications, leveraging a wide range of controls and programmability options.

The PT4 Preheaters are designed to provide heat to four independent temperature zones, offering enhanced flexibility by accommodating a variety of circuit board sizes and complexities. Temperature regulation is maintained through external thermocouples as the units monitor and adjust heat levels in real-time. Advanced temperature control modes ensure adaptability and repeatability, with programmable profiles tailored to specific circuit board temperature requirements.

"At Metcal, we are always focused on the two most important elements to any industrial operation: process control and precision," explained Curtis Yamauchi, Senior Product Manager at Metcal. "The PT4 Series Preheaters offer the high performance and precision controls customers expect from Metcal."

For more information, please visit info.metcal.com/pt4-preheaters.

About Metcal:

Metcal, an OK International brand, is a benchtop solutions innovator, leading the way in hand soldering, convection rework, fume extraction, and fluid dispensing. Metcal breakthroughs have empowered global OEM and electronics assembly customers in contract manufacturing, automotive, aerospace, medical devices, industrial and military sectors since 1982. For more information, visit www.metcal.com.

About OK International:

OK International, part of Dover Corporation, is a global manufacturer of bench tools and equipment that are used in electronics & industrial product assembly. Committed to operational excellence and innovation, they deliver core technological advantages with best-in-class performance. The core brands are Metcal, which provides advanced technology products across hand soldering, convection rework, and fume extraction applications, and Techcon, known for its fluid and dispensing products that provide superior accuracy and durability. For more information about OK International, visit okinternational.com.

About Dover:

Dover is a diversified global manufacturer and solutions provider with annual revenue of over $7 billion. We deliver innovative equipment and components, consumable supplies, aftermarket parts, software and digital solutions, and support services through five operating segments: Engineered Products, Clean Energy & Fueling, Imaging & Identification, Pumps & Process Solutions and Climate & Sustainability Technologies. Dover combines global scale with operational agility to lead the markets we serve. Recognized for our entrepreneurial approach for over 70 years, our team of approximately 24,000 employees takes an ownership mindset, collaborating with customers to redefine what's possible. Headquartered in Downers Grove, Illinois, Dover trades on the New York Stock Exchange under "DOV." Additional information is available at dovercorporation.com.  

OK International Contact:
Dan Klass
(714) 799-9910
[email protected]

Dover Media Contact:    
Adrian Sakowicz, VP, Communications    
(630) 743-5039    
[email protected]     

Dover Investor Contact:   
Jack Dickens, VP, Investor Relations
(630) 743-2566
[email protected]

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SOURCE Dover