IR-AK6 DIGI-ACTION Digital Print Dryer 

Hybrid infrared and heated-air drying engineered for digital printing, primer coats, OPVs and narrow- to mid-web production. 

IR-AK6 DIGI-ACTION combines one IR ACTION cassette with two HAK3 heated-air zones to support drying of water-based and oil-based chemistries. Adjustable IR output, VFD-controlled airflow, temperature monitoring, auto-height capability and zoned drying controls allow Prime UV-IR to configure the system around the substrate, coating, press speed and production width.

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Drying for Digital Primer Coats and OPVs 

Digital printing workflows often depend on primer coats and overprint varnishes to improve adhesion, print quality and finished-product performance. 

Those coatings can also become a production constraint if they cannot be dried at the speed of the press. 

DIGI-ACTION is designed to combine direct IR energy with high-velocity heated air so that thermal input and moisture removal can be controlled together. 

Prime specifically positions the system for difficult primer coats and OPVs used in digital production, where the drying process may determine how quickly the line can run.

Key Outcomes 

  • Dry compatible primer coats and OPVs inline. 

  • Combine IR energy with two heated-air impingement zones. 

  • Adjust IR power in 1% increments. 

  • Vary blower output from 20% to 100% using VFD control. 

  • Adjust air-stream thickness around drying requirements. 

  • Match active IR sections to substrate width. 

  • Adjust dryer height for different material thicknesses. 

  • Monitor sheet temperature as production speed changes. 

  • Exhaust moisture from the drying chamber. 

  • Support remote monitoring and troubleshooting through Ethernet-connected controls. 

Application-Engineered Digital Drying 

Drying performance depends on the complete process. 

Prime evaluates factors including: 

  • primer or OPV chemistry 

  • substrate 

  • coating weight 

  • web width 

  • production speed 

  • material thickness 

  • target sheet temperature 

  • available machine footprint 

  • airflow requirements 

  • controls integration 

before recommending a DIGI-ACTION configuration. 

That application review informs IR emitter selection, power level, air-stream geometry, blower speed, cassette height and temperature-control strategy. 

The result is a drying system configured around the digital-production process rather than selected only by heater capacity. 

Three Independent Drying Zones 

Combine Direct IR Energy With Two Heated-Air Zones 

DIGI-ACTION uses three independent drying zones: 

  • 1 IR ACTION cassette 

  • 2 HAK3 heated-air impingement zones 

Each HAK3 zone incorporates three heated-air knives, giving the system six air knives in addition to the IR drying section.

The IR section supplies direct thermal energy while the HAK zones move heated air across the substrate to assist with moisture removal. 

This gives Prime multiple process variables to configure around the chemistry and line conditions instead of relying on one drying method alone. 

Infrared Energy Matched to the Chemistry 

Select the IR Emitter Around the Process 

The IR ACTION cassette can use: 

  • Short-Wave IR 

  • Fast Medium-Wave IR 

  • Medium-Wave IR 

This allows the IR source to be selected around the absorption characteristics of the coating chemistry and substrate.

Gold reflector emitters direct more than 90% of IR output toward the substrate, providing a measurable technical point that is more useful than broad claims about “maximum radiation efficiency.”

Heated-Air Impingement for Moisture Removal 

Control Air Delivery Around the Drying Requirement 

The two HAK3 zones direct high-velocity heated air across the substrate. 

The system provides: 

  • blower control from 20% to 100% maximum RPM 

  • adjustable air-stream thickness 

  • heated-air delivery matched to substrate width 

  • chamber exhaust for moisture removal 

This lets the drying process be adjusted around coating load, web speed and substrate characteristics rather than operating with one fixed airflow condition.

Match IR Output to Product Width 

Use Drying Energy Where the Job Requires It 

DIGI-ACTION provides on/off control of IR sections so the active drying width can be matched more closely to the substrate. 

For jobs running narrower material, unused IR sections can remain inactive rather than operating across the full system width.

IR output can also vary automatically in 1% increments to respond to changes in process speed. 

Auto-Height Adjustment 

Accommodate Different Material Thicknesses 

An available auto-height adjustment allows the dryer position to adapt to variations in material thickness. 

That gives production teams more flexibility when running different substrates through the same digital-printing or coating line.

Temperature Control Across Changing Line Speeds 

Maintain the Target Sheet Temperature 

Automatic temperature controls can adjust system operation as process speed changes. 

Rather than relying only on fixed heater settings, the dryer can use temperature information as part of the operating strategy to help maintain the required thermal conditions at different production speeds.

Controls Designed Around Digital Production 

Monitor and Adjust the Dryer From the Line 

Prime’s Premier control platform uses a 7-inch color HMI and can be located at the press control console. 

The system can: 

  • monitor and log IR operating data 

  • alert operators to adverse operating conditions 

  • provide Ethernet-connected access 

  • control variable IR output 

  • manage blower settings 

  • support fieldbus or analog power control 

  • provide soft-start emitter control 

Remote Access Available 

Ethernet connectivity allows operating information to be accessed remotely and can support troubleshooting and service review. 

Electrical and Safety Controls 

Built for Industrial Integration 

DIGI-ACTION incorporates: 

  • circuit-breaker protection against short circuits and overload conditions 

  • 380–480 VAC, 50/60 Hz, three-phase electrical compatibility 

  • inlet-air filtration 

  • CE, CSA, RoHS and UL-compliant electrical components 

Where DIGI-ACTION Fits 

Applications 

Technical Capabilities 

Capability IR-AK6 DIGI-ACTION
Drying Technologies Infrared + heated air impingement
Drying Zones 1 IR ACTION + 2 HAK3
HAK Air Knives 6 total
IR Emitter Options Short Wave, Fast Medium Wave, Medium Wave
IR Reflector Gold
Reflected IR Output >90% toward substrate
Heater Output Range 20%–100%
IR Power Adjustment 1% increments
Blower Control VFD, 20%–100% RPM
Active Width Control On/off IR sections
Air-Stream Thickness Adjustable
Auto-Height Optional
Temperature Control Automatic
Moisture Exhaust Yes
Inlet Air Filters Yes
Operator Interface Prime Premier 7 in. HMI
Connectivity Ethernet
Electrical 380–480 VAC, 50/60 Hz, 3 phase
Component Compliance CE, CSA, RoHS, UL

Support Beyond Installation 

Support for the Life of the Drying System 

Prime’s involvement continues after installation and startup. 

Customers have access to technical support, remote system review where enabled, OEM replacement components and controls expertise throughout the operating life of the equipment. 

As chemistry, substrates, press requirements or controls change, Prime can also evaluate replacement components and system updates intended to keep installed equipment productive.

Talk Through Your Application 

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Get in Touch with a Product and Application Specialist

Primer chemistry, OPV chemistry, substrate, coating weight, material thickness, line speed, width and available machine space all affect drying-system design. 

Talk with a Prime application specialist about the process and determine whether DIGI-ACTION — or another Prime IR / air-impingement configuration — is the appropriate fit. 

Related Products 

For broader sheetfed, packaging, converting and industrial applications that do not specifically center on digital primer/OPV drying. 

For sheetfed press delivery applications requiring a sheetfed-specific hybrid dryer configuration. 

For applications where infrared drying is the primary requirement and dual HAK zones are not necessary.