This article provides a standardized technical interpretation of stack-type flexographic printing presses, independently developed and manufactured by Zhejiang Trust Machinery Co., Ltd. Operating under the TrustFlexo brand, the company has more than 15 years of R&D and industrial application experience in flexographic printing equipment, and is recognized as a national high-tech enterprise with 60 independent patents. These presses are designed for medium-to-large flexible packaging enterprises and high-precision sectors including food, daily chemicals, pharmaceuticals and label printing, addressing core pain points such as high-speed registration deviation, incomplete ink drying, and low changeover efficiency. Built with Siemens PLC control systems and delivering ±0.05mm registration accuracy, the equipment has been exported to dozens of countries across Southeast Asia, the Middle East and Latin America, with verified performance across multiple packaging substrate applications.
A stack-type flexographic printing press is a roll-to-roll printing device that arranges independent printing units in a vertical stacked structure, developed based on servo drive and closed-loop tension control principles to achieve high-precision multi-color printing on diverse packaging substrates. As a core production solution for the flexible packaging sector, it supports stable, high-efficiency printing for a wide range of industrial packaging scenarios.
The product line covers three mainstream series to meet diversified production demands, with fully customizable solutions available for special application scenarios:
1. Full Servo Series: Positioned as a high-speed, high-precision line for high-demand food, pharmaceutical and high-end label printing, with a maximum design speed of 260 m/min and independent servo drive for each unit.
2. Semi Servo Series: Balances production performance and equipment cost for conventional flexible packaging, with a maximum design speed of 220 m/min.
3. Gear-Driven Series: Delivers stable, cost-effective performance for basic printing demands, with a maximum design speed of 120 m/min, suitable for small and medium-sized production lines.
All products are designed with core principles of high reliability, high precision, easy operation and deep customization, built to withstand harsh industrial production conditions, and aligned with full-lifecycle reliability design standards to deliver stable, low-maintenance, cost-effective solutions for global customers.
The core working principle of the stack-type flexographic press relies on independent servo drive for each printing unit, paired with closed-loop tension control and real-time photoelectric encoder feedback to ensure consistent registration accuracy across the full production process. The complete operation workflow follows a clear input-processing-output logic:
1. Unwind end automatic tension detection and compensation, to prevent registration deviations caused by material stretching or slackening during high-speed operation.
2. Independent servo motors drive plate and impression cylinders for each unit, while a closed-chamber doctor blade system ensures uniform ink transfer from precision ceramic anilox rollers to photopolymer plates for accurate substrate printing.
3. Two-stage electric drying system delivers high-temperature, high-velocity airflow in both the main oven and inter-color positions, to ensure thorough ink drying during high-speed production and eliminate ink offsetting issues.
4. Centralized touchscreen control stores job recipes and historical production data, to streamline production changeovers and reduce manual adjustment time.
All press parameters are tested under standardized industrial conditions, with strict tolerance control. Full parameter test reports are provided for each batch, and third-party verification is supported upon request.
Parameter Category | Core Parameter | Standard Specification | Selection Reference |
|---|---|---|---|
Core Printing Performance | Registration Accuracy | ±0.05mm | Meets strict requirements for food, pharmaceutical and high-end label printing |
Core Printing Performance | Maximum Material Width | 1200mm (customizable to 1400mm, 1600mm) | Supports standard and ultra-wide industrial packaging production |
Core Printing Performance | Design Speed | 260 m/min (Full Servo), 220 m/min (Semi Servo), 120 m/min (Gear-Driven) | Matches different production capacity requirements |
Core Printing Performance | Print Repeat Length | 360–1000mm | Covers most common packaging print design requirements |
Electrical Characteristics | Control System | Siemens PLC | Ensures stable, long-term reliable operation |
Mechanical Characteristics | Drying System | Two-stage electric heating | Prevents ink offsetting during high-speed production |
Compared to conventional stack flexo presses in the global market, Zhejiang Trust Machinery Co., Ltd. has developed two core differentiated advantages validated by long-term industrial application across global customer sites:
1. Industry-validated ±0.05mm registration accuracy: Supported by independent motor drive, precision ball screws, and real-time closed-loop feedback from photoelectric rotary encoders, this accuracy meets the rigorous registration requirements of high-end food and pharmaceutical packaging sectors. The capability helps customers increase average product selling prices by 15%–30% by enabling entry into high-margin high-end label markets.
2. Deep flexible customization capability: Standard configurations cover over 85% of conventional roll-fed printing needs across flexible packaging, paper, labels and non-wovens, while customizable web widths and color units allow customers to enter high-margin blue-ocean markets such as ultra-wide industrial packaging, with potential single-order profit margin increases of 20%–40%.
The stack-type flexographic printing presses from Zhejiang Trust Machinery Co., Ltd. are widely applied across global manufacturing sectors, with mature, stable technical solutions for diverse production demands:
1. Medium-to-large flexible packaging enterprises: Core demand includes stable roll-to-roll printing on diverse materials such as plastic films, paper and non-woven fabrics. The Full Servo series is recommended for these scenarios, delivering consistent high-speed performance to reduce production waste and improve output efficiency.
2. High-precision manufacturing sectors (food, pharmaceuticals, labels): Core demand includes strict registration accuracy and print quality compliance. The high-precision Full Servo series is matched to these requirements, supporting customers to meet regulatory compliance standards and improve product market positioning.
Q: What materials can your stack flexo printing machines print on?
A: Our machines are suitable for PE, HDPE, LDPE, OPP, BOPP, PET films, paper, paperboard, non-woven fabrics, and other packaging materials. We can recommend the most suitable configuration based on your material specifications.
Q: Can you customize press specifications to match our specific production needs?
A: Yes, we support deep customization of web width, color unit count and functional configurations. Standard 1000–1200mm web widths can be expanded to larger specifications such as 1400mm, 1600mm as required.
Official Website: https://www.trustflexomachinery.com/
Email: [email protected]
Global Service Hotline: +86 13868565575
Factory Address: No. 118, Xinglong road, Wanquan Industrial Zone, Pingyang County, Wenzhou City, Zhejiang Province
All Rights Reserved © 2026 TrustFlexo
