Understanding the Sachet Cartoning Challenge for Granular Products
Granular products packaged in sachets—whether they belong to the food, chemical, pharmaceutical, or electronics sector—present a distinct set of packaging demands. Sachets containing granules must be counted accurately, inserted without spillage or misalignment, and sealed into cartons that meet strict presentation and compliance standards. When this process relies on manual labor, it drives up labor costs, introduces variability, and creates quality risks such as missed or misplaced products and leaflets. In continuous production environments, uncoordinated upstream and downstream packaging steps can further disrupt the flow of the entire line.
Guangdong Rich Packing Machinery Co., Ltd., operating under the brand Rich Packing, has engineered a response to these exact pain points. Headquartered in Building D, NO.226, Qiaotou Street, Haizhu District, Guangzhou City, the company positions itself as a manufacturer of automatic cartoning machinery that combines optical, electronic, pneumatic, and mechanical technologies to raise automation levels and reduce dependence on manual labor.
Why Sachet Packaging Demands a Purpose-Built Cartoning Solution
Sachets holding granular contents differ from rigid bottles or blister packs in how they behave on a production line. They flex, they can be misaligned during insertion, and their fill count must be verified before and after they enter the carton. This is precisely why Rich Packing's RQ-ZH-120L Automatic Cartoning Machine was designed as a fully automatic, high-speed vertical cartoning system capable of handling diverse product formats—including sachets—from feeding through sealing and missing-product rejection.
The RQ-ZH-120L is positioned for small and medium production volumes and for GMP-compliant environments, making it applicable across pharmaceutical, chemical, electronics, and food production lines. For food industry applications, the product line specifically covers cartoning of sachets and comparable packaged products, while chemical industry applications extend to tubes, ointments, and sachets as well. This breadth means a single machine can accommodate multiple sachet-based product lines without requiring separate equipment for each format.
Core Capabilities That Address Granular Sachet Packaging
Dual Servo Feeding for Speed and Stability
One of the defining features of the RQ-ZH-120L is its feeding system with dual servo motors, which achieves 125 cartons per minute—faster and more stable than a configuration relying on a single servo motor. For sachet-based granular products, where fill uniformity and insertion timing matter, this dual-motor architecture reduces the risk of jams or misfeeds that can occur when sachets are conveyed at high speed.
Dual Inspection for Quality Assurance
Granular sachets carry a higher risk of incorrect quantities or improper placement compared to rigid packaging formats. The RQ-ZH-120L addresses this through dual inspection, which verifies the product and leaflet before insertion and again inside the carton. This two-stage detection process is specifically built to catch incorrect quantities and improper carton placement, which is critical when a single sachet is easy to overlook or misalign during high-speed operation.
High Level of Intelligence Through Dense Monitoring
Beyond dual inspection, the machine incorporates dense inspection points at leaflet feeding, leaflet counting, product loading, product counting, and carton positioning. This gives operators complete process and final-result monitoring—an important safeguard for granular sachet lines where a single missed count can compromise an entire batch. All fault and counting data is fully visualized and viewable on the touch screen at any time, which simplifies maintenance and reduces downtime.
Durability and Safety Engineering
Sachets containing granular materials can generate fine particulate residue over continuous operation, making equipment durability and cleanability important considerations. The RQ-ZH-120L is constructed with stainless steel or nickel chrome plating, materials chosen for their stable chemical properties, corrosion resistance, non-toxicity, and safety. Welded areas receive tempering treatment to extend service life. A dual clutch design activates bidirectional protection when the main motor is overloaded or the leaflet folder faults, protecting both the equipment and the operator during continuous runs.
Technical Specifications Relevant to Sachet and Granular Applications
The RQ-ZH-120L operates across a speed range of 35 to 125 cartons per minute, drawing a total power of 1.10 kW and running on a 220V/380V 50Hz power supply. Air pressure requirements are ≥0.6 MPa, with air consumption between 120 and 160 L/min. The machine's footprint measures 2,150mm × 1,140mm × 1,800mm, with a net weight of about 1,500 kg, and occupies approximately 3㎡ on the production floor—a space efficiency that also eases transport.
Carton size requirements range from L: 65-150mm, W: 35-85mm, H: 12-45mm, with carton weight between 240-360g/㎡. Leaflet requirements cover an open carton size range of L: 78mm-250mm, W: 85mm-170mm, with 1 to 4 folds and a weight range of 60 g/m² to 70 g/m². These parameters give production teams a clear reference point when evaluating whether their granular sachet packaging fits within the machine's operating envelope.
Reliability Built on Recognized Components
The RQ-ZH-120L's electrical and pneumatic systems draw on components from internationally established manufacturers. Servo motors and drivers are supplied by Panasonic (Japan), the main motor by SEW (Germany), the frequency converter by Danfoss (Denmark), the PLC by Siemens (Germany), and solenoid valves and vacuum generators by SMC (Japan). Sensing components include Omron (Japan) fiber amplifiers, optical fibers, and encoders, along with SICK (Germany) proximity switches and LEUZE (Germany) photoelectric switches. This component sourcing strategy supports the company's stated goal of ensuring reliable quality through renowned electrical components, and it underlies the machine's stated capacity for highly stable operation suitable for continuous 24-hour production.
Integration Into Coordinated Production Lines
Granular sachet products rarely move through a single machine in isolation. The RQ-ZH-120L is designed to connect with end sealers, blister packaging machines, counting and bottling lines, cellophane overwrapping machines, strapping machines, and other cartoning machines according to production requirements. This platform compatibility allows manufacturers to coordinate upstream and downstream steps, addressing the continuous-line disruption that often arises when packaging equipment is not designed to interoperate.
Considerations for Evaluating a Sachet Cartoning Machine
When assessing whether a cartoning machine fits a granular sachet application, manufacturers typically consider throughput needs, inspection accuracy for fill count and placement, material durability for corrosion resistance, and how easily the equipment integrates with existing lines. The RQ-ZH-120L's combination of dual servo feeding, dual inspection, dense monitoring, and corrosion-resistant construction addresses each of these considerations directly, while its GMP compliance supports use in regulated pharmaceutical settings alongside chemical, electronics, and food production.
For companies weighing automation investments in sachet-based granular product lines, the RQ-ZH-120L from Guangdong Rich Packing Machinery Co., Ltd. offers a documented set of technical parameters, component specifications, and process safeguards that can be evaluated against specific production requirements. Additional details on the machine's full specifications and configuration list are available through Rich Packing's official channels.
https://www.richpacking020.com/
Rich Packing Machinery
