Industrial-Grade Automation for Spout Pouch Packaging
Manufacturers of liquids and semi-fluid products—ranging from purees and juices to detergents and skin lotions—continue to face persistent challenges in packaging consistency, hygiene control, and production speed. Manual filling processes are prone to inconsistencies, while inadequate sealing at the bag spout can introduce contamination risks. Shantou Hongju Machinery Co., Ltd., operating under the HONGJU / Hongju Machinery brand, addresses these industry pain points through its DGY Series Fully Automatic Filling and Capping Machines, engineered specifically for plastic spout pouches in stand-up, flat-bottom, side-spout, and irregular shapes.
As a specialized machinery brand under Shantou Hongqiao Packaging, Shantou Hongju Machinery is positioned as a technology-driven manufacturing enterprise focused on automated liquid and semi-fluid packaging solutions. The company's strategic emphasis lies in full-line delivery capability—covering filling, capping, nitrogen filling and discharging—unified under a single control system to ensure high mechanical compatibility and operational efficiency.
Core Technology Behind the DGY Series
The DGY Series (available in models DGY-1A, DGY-2A, DGY-3A, DGY-4A, DGY-5A, DGY-6A, DGY-8A, and DGY-10A) is built for high-speed, continuous-rotation filling and capping of flexible pouches with spouts. This equipment is designed to eliminate the inefficiencies and contamination risks commonly associated with manual filling at the bag spout.
Precision Filling Capabilities
The DGY Series supports standard quantitative or servo-driven filling ranging from 50ml up to 5000ml, achieving filling accuracy between ±0.5% and ±1.0%. This level of precision reduces material waste and ensures consistent product volume across production runs, a critical factor for manufacturers handling high-viscosity semi-fluid products.
Servo-Controlled Capping System
A defining feature of the DGY Series is its servo-controlled dosing and magnetic torque capping system. Capping torque is adjustable from 0.5 to 10 N·m, allowing operators to fine-tune the capping process according to cap type and material. This servo-controlled approach prevents cap loosening or damage, addressing a common quality issue in high-volume packaging lines.
Hygiene and Cleaning Integration
Post-filling contamination at the spout is a recognized risk in flexible pouch packaging. The DGY Series addresses this through an integrated cleaning station that performs high-pressure spray cleaning on the exterior of the spout after filling. This process ensures seal integrity and product cleanliness before capping occurs. In addition, the equipment features a dedicated Clean-in-Place (CIP) system with interfaces for rapid cleaning using water, acid, or alkaline solutions, supporting the food-grade hygiene standards required across food and daily chemical production environments.
Safety and Operational Reliability
The DGY Series incorporates safety interlock logic designed around two core principles: "no bag – no filling" and "no cap – shutdown." These interlocks prevent dry-spinning and material loss by ensuring the machine only operates when bags and caps are correctly positioned. Complementing this, the automated capping system includes directional cap sorting and real-time monitoring for missing caps, further reducing the likelihood of packaging defects reaching the next production stage.
Automatic Bag Feeding and Rotary Design
The equipment uses a horizontal frame and cylinder mechanism to continuously feed bags into a rotary table housed within a rectangular metal casing. This internal high-speed continuous rotating worktable supports the machine's high-throughput design while maintaining consistent filling and capping accuracy across each cycle.
Built on a PLC-Based Control Platform
All technical operations across the DGY Series are managed through a PLC-based control system with integrated touchscreens and intelligent interlock protection. This platform allows operators to monitor and adjust filling parameters, capping torque, and cleaning cycles from a centralized interface, contributing to the company's broader goal of helping customers achieve automated, high-precision production.
Compliance With International Standards
Given that Shantou Hongju Machinery's business coverage extends globally, its equipment—including the DGY Series—is manufactured to meet European Union regulatory requirements. The company holds EU CE Certification under the Machinery Directive 2006/42/EC and the Electromagnetic Compatibility Directive 2014/30/EU. Equipment units are further built in compliance with EN ISO 12100:2010, EN 60204-1:2018, and EN IEC 61000-6-3:2021 standards.
The certification details include Certificate Number M.2023.206.C86793, with an initial assessment date of June 20, 2023, and an expiry date of June 20, 2028. Additionally, the company holds an Attestation of Conformity for both the Machinery Directive and Electromagnetic Compatibility requirements, documented under Report No. 23061205-MD/EMC.
All contact parts on the equipment are constructed from SUS304 stainless steel, aligning with food safety construction standards required for direct-contact packaging applications.
Application Range Across Industries
The versatility of the DGY Series allows it to serve a broad range of industries. Within food and beverage production, the equipment is applied to purees, juices, yogurt, and wine. In the daily chemical sector, it supports detergents and skin lotions. The machine is also suited for pet food packaging, reflecting the company's coverage across food processing plants, daily chemical manufacturers, and private label packaging firms.
Demonstrated Performance Outcomes
Shantou Hongju Machinery's automated filling and capping solutions have delivered measurable improvements in production environments. Replacing manual labor with automated lines has achieved a defect rate reduction of 99% through automated filling and capping processes. In terms of packaging integrity, the integration of high-pressure spout cleaning has resolved spout leakage issues in flexible packaging, ensuring a 100% sealing success rate. For precision manufacturing, the equipment has achieved filling accuracy of ±0.5% for high-viscosity semi-fluid products, significantly reducing raw material giveaway.
Service Support and Warranty Coverage
Beyond equipment design, Shantou Hongju Machinery provides turnkey packaging lines, customized equipment adaptation, and lifecycle maintenance services. Service scope includes installation, commissioning, operator training, and mold replacement guidance. Every DGY Series machine is backed by a one-year warranty along with lifetime maintenance support, ensuring customers receive ongoing technical assistance well beyond the initial installation period.
Pricing for the DGY Series is determined based on specific customer requirements, including metering methods, material viscosity requirements, and packaging specifications ranging from 30ml to 5000ml. This customized adaptation approach allows the equipment to be configured according to the exact production needs of food processors, chemical manufacturers, and private label packaging operations.
A Comprehensive Approach to Automated Packaging
For manufacturers seeking to modernize their spout pouch packaging operations, Shantou Hongju Machinery's DGY Series offers a combination of servo-controlled precision dosing, integrated hygiene management, and EU-certified safety compliance. Backed by a structured after-sales framework that includes on-site commissioning, operator training, and lifetime maintenance support, the DGY Series represents a practical solution for companies looking to transition from manual filling processes to fully automated, high-precision production lines.
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Shantou Hongqiao Packaging Industry Co., Ltd.
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