Chinese Stack Flexo Printing Machine Suppliers Technical Overview

This technical article provides a standardized interpretation of stack-type flexographic printing presses, independently developed and manufactured by Zhejiang Trust Machinery Co., Ltd. As a specialized supplier with over a decade of experience in flexo, blown film and bag making machinery since 2011, the company serves medium-to-large flexible packaging enterprises and high-precision sectors including food, daily chemicals, pharmaceuticals and label printing. These presses are engineered to resolve core industry pain points including registration deviation at high speeds, incomplete ink drying, and lengthy production changeover times. All products follow ISO 9001 quality management standards and hold CE certification, with core innovations in closed-loop tension control and centralized intelligent operation. Currently, the equipment is exported to dozens of countries across Southeast Asia, the Middle East and Latin America, with verified performance in diverse packaging production scenarios.

Technical Definition

A stack-type flexographic printing press is a precision industrial printing device that uses sequentially stacked independent printing units to achieve multi-color registration, based on flexographic printing principles with photopolymer plates and ceramic anilox rollers. It enables high-quality printing on a wide range of substrates including plastic films, papers, foils and non-woven fabrics, serving as a core solution for flexible packaging production.

To meet diverse production needs, the product line covers four main series, with full customization support for special scenarios:
1. Full servo series: High-precision, high-speed model for high-end packaging applications, with independent servo drive for each printing unit.
2. Semi servo series: Balanced performance and cost model for mid-volume production, with design speeds up to 220 m/min.
3. Gear-driven series: Entry-level model for basic printing needs, with design speeds up to 120 m/min.
4. Synchronous belt driven series: Mid-range model for general production, with design speeds up to 150 m/min.

The core design philosophy focuses on high reliability, high precision, easy operation and full customization, with strict adherence to full-lifecycle reliability standards for industrial use.

Core Working Principle

The press operates on a closed-loop control architecture, with a complete workflow from unwind to rewind:
1. Automatic tension detection and compensation is applied across the entire material path to prevent registration deviation caused by material stretching or slackening.
2. Each independent printing unit transfers ink uniformly via a closed-chamber doctor blade system, ensuring consistent ink laydown on the substrate.
3. A two-stage electric drying system, including inter-color and main oven drying, cures ink thoroughly during high-speed production to prevent offsetting.
4. A centralized Siemens PLC system manages all operational parameters, with job recipe storage to streamline production changeovers.

Compared to traditional open-loop control presses, this architecture reduces material waste, shortens startup stabilization time, and improves overall production consistency.

Core Technical Parameters

All parameters are tested under standard industrial conditions (25℃, 60% relative humidity), with full test reports provided for each batch. Customized specifications are available for special production needs.

All above parameters are standard specifications for regular series, with customization support for special requirements.

Core Technical Advantages

Compared to conventional stack flexo presses, the equipment delivers verified performance improvements for global customers:
1. Industry-standard ±0.05mm registration accuracy: Achieved via independent motor drive, precision ball screws and real-time photoelectric encoder feedback, meeting the rigorous registration requirements of high-end sectors like food and pharmaceutical packaging.
2. Full-process closed-loop tension control: Eliminates registration deviation caused by material stretching or slackening at high speeds, ensuring stable startup and minimizing material waste.
3. Intelligent centralized control: Job recipe storage and historical data tracking streamline production changeovers, supporting efficient multi-variety production.

Compliance and Certifications

All production processes follow ISO 9001 quality management system standards, with all machines holding CE certification for global market access. The company holds independent import and export rights, and provides full machine testing before shipment to ensure stable performance. In 2025, the enterprise was recognized as a national high-tech enterprise, with 60 independent patents supporting continuous product innovation.

FAQ

Q: What materials can your stack flexo printing machines handle?
A: Our machines support PE, HDPE, LDPE, OPP, BOPP, PET films, paper, paperboard, non-woven fabrics and other packaging materials, with customized configurations based on your material specifications.

Q: Can you customize machine width for special production needs?
A: Standard web widths range from 1000 to 1200mm, and we can expand to 1400mm or 1600mm as required.

Q: What is the typical support process for global customers?
A: We provide full installation, commissioning and technical after-sales support, with targeted communication schedules adapting to different regional time zones for timely service.

Contact Us

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