Printing press retrofit solutions

As the printing and packaging industry continues to demand higher production speeds, consistent print quality, and improved energy efficiency, retrofitting existing curing systems has become one of the most effective ways for manufacturers to increase productivity while maximizing the value of their existing printing presses.

Many production lines still rely on conventional hot-air or infrared (IR) drying systems, while others continue to operate with conventional mercury UV curing systems that have been in service for many years. These legacy technologies often result in higher energy consumption, excessive heat generation, increased maintenance costs, and reduced production efficiency compared with today's advanced curing technologies.

With more than a decade of expertise in UV and UV LED technologies, LECI provides comprehensive engineering services, including site assessment, technical consulting, system design, integration, and retrofitting of existing curing systems for offset, flexographic, screen, and digital printing presses.

Discover LECI's printing solutions at Vietnam PrintPack 2026

At Vietnam PrintPack 2026, LECI showcases advanced technologies designed to retrofit, modernize, and optimize existing printing production lines.

Our featured solutions include retrofitting conventional thermal drying systems with UV curing technology and retrofitting conventional mercury UV systems to UV LED technology. In addition, LECI presents Corona surface treatment systems to improve substrate wettability and enhance the adhesion of inks, coatings, and adhesives, as well as Excimer technology for producing premium ultra-matte surface finishes.

Visitors can also explore a comprehensive portfolio of printing equipment and components, including UV and UV LED curing systems, UV lamps, UV power supplies, UV radiometers, UV energy meters, UV printing inks, anilox rollers, and other specialized equipment for modern printing applications.

Throughout the exhibition, LECI's engineering team will work closely with visitors to evaluate their production requirements and recommend the most suitable retrofit solution based on press configuration, ink chemistry, substrate characteristics, production speed, and finished product requirements.

>> See more: Offset Printing Supplies

Retrofitting conventional drying systems with UV curing technology

For production lines currently using infrared (IR), hot-air, or other conventional thermal drying methods, LECI provides complete retrofit solutions that integrate UV curing technology into existing printing presses.

Unlike conventional thermal drying, UV curing polymerizes UV-curable inks and coatings almost instantly after exposure to ultraviolet energy. This significantly reduces curing time, shortens production cycles, increases press speed, and minimizes common print defects such as smudging, blocking, and surface scratching.

Retrofitting with UV curing technology also improves ink adhesion, gloss, color consistency, and surface durability while enabling printing on a wider range of substrates using UV-curable inks, varnishes, and coatings.

Every retrofit project is engineered according to the customer's existing press configuration and production requirements. Parameters such as UV power, curing width, lamp positioning, cooling, exhaust ventilation, and control systems are carefully designed to ensure seamless integration with the existing production line.

>> See More: Industrial UV Lamp Categories

Retrofitting conventional mercury UV systems to UV LED technology

For printing presses equipped with conventional mercury UV curing systems, LECI provides complete retrofit solutions to convert existing systems to high-performance UV LED curing technology.

Unlike conventional mercury lamps, UV LED systems require virtually no warm-up or cool-down time and can be switched on or off instantly. The LEDs operate only when curing is required, significantly reducing energy consumption and eliminating unnecessary power usage during idle machine operation.

UV LED technology also generates substantially less heat, making it ideal for heat-sensitive substrates such as films, labels, thin paper, and various synthetic materials. Longer service life, reduced maintenance requirements, and mercury-free operation further contribute to lower operating costs and improved environmental sustainability.

However, retrofitting a conventional mercury UV system to UV LED involves far more than simply replacing the light source. Successful implementation requires careful evaluation of LED wavelength, irradiance, working distance, press speed, ink chemistry, and substrate characteristics. LECI performs a comprehensive engineering assessment to ensure the retrofitted system delivers reliable curing performance while maintaining consistent print quality and production efficiency.

>> See More: Offset Printing Press Retrofit

Customized retrofit solutions for every printing press

Every printing press has unique operating conditions, production requirements, and performance objectives. Therefore, every retrofit project begins with a comprehensive assessment of the existing production line before an appropriate engineering solution is proposed.

Our engineering evaluation includes:

• Printing press type and configuration
• Ink, coating, or varnish system
• Substrate type and thickness
• Print width
• Production speed
• Required UV dose and curing performance
• Available installation space
• Cooling and ventilation requirements
• Finished product quality specifications

Based on these parameters, LECI develops a customized retrofit solution, selects the most suitable UV or UV LED curing technology, integrates the required mechanical and electrical systems, and optimizes all operating parameters to maximize production efficiency, system reliability, and return on investment.

Contact infomation:

• LECI Co., Ltd

• Room 1901, Saigon Trade Center, No. 37 Ton Duc Thang Street, Saigon Ward, Ho Chi Minh City, Vietnam

• Long Bien, Ha Noi, VN.

• Phone:  (+84) 901442689 (WhatsApp)

• Hotline: 02822202988

• Website: lecilaser.com