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Leveraging heavy industry expertise, advanced material science, and global logistics networks, our group integrates manufacturing precision across four critical industrial domains.
With a history of over 30 years, the company's chairman personally oversees its operations. It has participated in the construction of numerous national key projects, and its involvement in high-speed railway projects alone includes the Harbin-Dalian High-Speed Railway, Qingdao-Rongcheng Intercity Railway, Datong-Xi'an High-Speed Railway, Beijing-Shenyang High-Speed Railway, Beijing-Shanghai High-Speed Railway, among others.
Founded in 2014, the company acquired a printing machine manufacturer with a 70-year history in 2020. It produces 100 units of double-sided printing machines of various models annually and is the largest manufacturer of double-sided printing machines in China in terms of sales volume.
Located at the estuary of the Yangtze River, the company covers a land area of 160,000 square meters and provides services for clients/projects including Datang Power, Huaneng Power Plants, and the Hutong Yangtze River Bridge. It also owns two 10,000-ton-class docks with a total value of 200 million yuan (RMB).
It owns 5 10,000-ton-class cargo ships, and continues to invest funds to expand its scale. Its medium-term goal is to have 20 cargo ships for various purposes, with a total tonnage reaching 500,000 DWT (Deadweight Tonnage).
In the modern packaging landscape, the demand for specialized inserts and leaflets has reached unprecedented heights. Industries such as pharmaceuticals, luxury cosmetics, consumer electronics, and chemical products require highly detailed, compact, and compliant information sheets to accompany their products. Because these documents contain critical dosage instructions, legal warnings, and multi-language user manuals, the print quality must be flawless. Ultra-thin paper (ranging from 27 gsm to 60 gsm) is typically utilized to minimize package volume and weight, posing significant engineering challenges to conventional print machinery.
Precision sheet-fed double-sided printing machinery has emerged as the cornerstone of this specialized manufacturing sector. Unlike standard commercial offset presses, leaflet manufacturing presses must maintain exceptional registration accuracy and tension control to handle extremely lightweight substrates without tearing or wrinkling. Furthermore, the global drive towards serialization and strict regulatory compliance (such as FDA guidelines for pharmaceutical packaging) mandates that micro-text as small as 4pt must remain perfectly legible. Consequently, modern print machinery is increasingly integrating smart automation, real-time optical inspection, and high-speed perfecting technologies to guarantee zero-defect production runs.
Feeding, registering, and delivering paper under 40 gsm requires specialized suction heads, air-cushion guides, and precise tension control systems to prevent static buildup and sheet jams.
Perfecting units must reverse the sheet with sub-micron accuracy. Any registration shift between the front and back sides will ruin the readability of micro-text and barcode graphics.
Specialized inks and advanced drying systems (such as LED-UV or infrared) are integrated to ensure instant curing on thin, non-absorbent packaging stocks, eliminating set-off and smudging.
1. AI-Driven Quality Inspection: Integrating high-resolution camera systems directly onto the perfecting cylinder allows for 100% real-time inspection. The system instantly detects ink spots, missing characters, or registration drift, automatically flagging or sorting out defective sheets.
2. Sustainable Engineering: Modern printing presses are shifting toward energy-efficient drying systems and alcohol-free dampening solutions. Minimizing paper waste during setup (make-ready time) is critical when handling costly specialized substrates.
3. Hybrid Digital-Offset Workflows: Combining the high speed and cost efficiency of offset printing with digital variable data printing (VDP) modules allows manufacturers to print unique serial numbers, barcodes, and tracking codes directly onto inserts in a single pass.
Pharmaceutical packaging inserts require absolute precision. Because they contain mandatory regulatory information, warnings, and multi-language instructions, a single illegible character can lead to product recalls. Our double-sided printing machinery utilizes high-rigidity cast iron frames and micro-adjustable ink fountains to ensure that tiny 4-point fonts remain crisp and legible across millions of impressions. The double-sided perfecting mechanism operates flawlessly on paper as light as 30 gsm, ensuring that the folded leaflet (or "outsert") fits perfectly inside compact medicine boxes.
For high-end cosmetics, packaging inserts are key brand touchpoints. They often feature complex, high-density color graphics, brand logos, and metallic spot inks alongside product usage guidelines. Our printing machinery supports multi-color configurations with high-accuracy registration systems. This allows cosmetic manufacturers to achieve premium color fidelity and consistent branding on textured or coated thin-papers, matching the luxurious feel of the outer folding carton.
Electronics inserts require high-speed production due to massive product volumes. These inserts are often large-format sheets folded down to pocket-sized booklets containing detailed schematic diagrams and multilingual text. The printing machinery must deliver high-speed, continuous sheet feeding and reliable perfecting output. With our advanced sheet-fed offset presses, manufacturers can process large-format, double-sided sheets efficiently, ensuring rapid turnaround times and lower per-unit printing costs.
We persist in allocating 5.08% of annual sales revenue as special R&D funds. Our commitment to innovation is the engine driving our global competitiveness. By investing heavily in engineering research, we push the boundaries of what high-speed double-sided sheet-fed presses can achieve.
The technical team has maintained close cooperation with domestic universities and colleges. Adhering to the combination of independent innovation and technology introduction, the team has made over 600 improvements to its products in various aspects. Compared with five years ago, the products have achieved a qualitative leap in all aspects.
It has the capability to rapidly and systematically initiate the development of multi-color offset printing machines, ensuring that our machinery is perfectly optimized for complex, modern packaging insert designs that require both text and high-resolution graphics.
It has purchased brand-new high-precision main processing equipment for consecutive years, with its equipment level and processing accuracy leading the industry. All key components are independently processed in-house.
The selected high-grade castings all undergo secondary heat treatment to eliminate internal stress, ensuring the machine maintains its shape without deformation during long-term use.
It possesses domestically advanced processing capabilities for key components of double-sided printing machines, as well as robust quality inspection capabilities.
In addition, Ding Bangguo, the company's chairman, also proposed that enterprise management should practice the "Three Minds" – namely the "Mind of Vitality", the "Mind of Diligence" and the "Mind of Belonging". This initiative aims to build China's top brand in double-sided printing machinery manufacturing and enhance employees' sense of happiness. The company adheres to its corporate goal of "customer-centricity, where customer satisfaction is our eternal pursuit", upholds the concept of win-win cooperation, and actively builds Ruyu into a renowned brand of Chinese sheet-fed double-sided printing machinery with the "craftsmanship spirit".
Innovation and integration, honesty and modesty, good learning and success, self-transcendence.
Let China's printing press manufacturing industry shine in the world.
RUYU intelligent manufacturing，word-class quality
Build an Integrity-Based Enterprise, Create Brand-Name Products
Explore our dedicated range of high-precision double-sided offset printing machinery, engineered specifically for handling ultra-thin substrates and high-density micro-text.
Our flagship sheet-fed perfecting press designed specifically for printing ultra-thin pharmaceutical leaflets down to 28 gsm with perfect front-to-back registration.
Featuring advanced ink fountain control and high-speed perfecting systems to ensure crisp micro-text and dense barcodes on packaging inserts.
High-rigidity cylinder tubes and ink rollers engineered to prevent vibration, ensuring consistent pressure for high-speed leaflet printing lines.
Secondary heat-treated machine bases that ensure zero structural deformation, providing the foundation for micro-level registration accuracy.
Enables multi-color graphic printing on cosmetic inserts in a single pass, combining speed with high-fidelity color reproduction.
Equipped with AI-assisted registration and real-time optical scanning systems to detect and flag printing errors instantly.
Custom-engineered roller tubes designed for continuous, heavy-duty operation in large-scale leaflet manufacturing facilities.
Supported by our group's ocean shipping fleet, we guarantee safe, timely, and cost-effective global delivery of heavy printing machinery.