Middle Spout Pouch

A sachet is a small, sealed pouch typically used for packaging small quantities of products. These flexible containers are commonly made from materials like plastic, foil, or paper, and are designed to hold items such as spices, condiments, cosmetics, or pharmaceuticals. The term "sachet" originates from the French word for "small bag," and its design emphasizes portability and single-use convenience.​

Sachets differ from larger packaging in their compact size and often feature resealable or tear-open structures for easy access. They are widely used in various industries due to their cost-effectiveness and ability to preserve product freshness. The manufacturing process of sachets involves precision machinery to ensure tight sealing and consistent quality, making them a popular choice for both commercial and consumer applications.​

Advanced Machinery for Sachet Production and Filling​

When it comes to creating sachets, specialized manufacturing equipment plays a crucial role in delivering efficient and reliable results. Here’s an in-depth look at various advanced machines revolutionizing sachet production:​

1. Sachet Making Machines​

Sachet making machines are designed to form, seal, and cut the packaging material into the desired pouch shape. These machines often incorporate automated systems to handle materials like polyethylene (PE), polypropylene (PP), or laminated films, ensuring uniform pouch dimensions and secure seals.​

Modern sachet making machines feature adjustable settings for bag length, width, and sealing parameters, allowing manufacturers to produce various sachet sizes—from tiny 5ml condiment packets to larger 100ml liquid containers. Some models even integrate printing systems to apply branding, product information, or barcodes directly onto the sachet during production, enhancing efficiency for commercial use.​

2. Precision Sachet Filling Machines​

Complementing the making process, sachet filling machines are essential for accurately dispensing products into the pouches. These machines are engineered to handle different product types, including powders, liquids, granules, or pastes, with precision dosing mechanisms:​

• * Liquid filling machines use piston pumps or gravity-fed systems to fill sachets with beverages, sauces, or cosmetics, ensuring minimal spillage and consistent volume.​

• * Powder filling machines employ auger screws or vibratory feeders to deposit fine powders like coffee, detergent, or pharmaceutical ingredients, preventing dust accumulation and ensuring weight accuracy.​

• * Granule filling machines are designed for products like seeds, snacks, or pills, using hopper systems and conveyor belts to meter the granules into each sachet.​

Types of Sachets

1. Flat Sachets

The most widely used design, ideal for single-use applications such as condiments, instant coffee, or detergent samples.

Compact and cost-effective for small-quantity packaging.

2. Stand-Up Sachets

Equipped with a gusseted base for stability, allowing the package to remain upright.

Commonly used for snacks, liquid sauces, and other products requiring shelf presence.

3. Zip-Lock Sachets

Feature a convenient resealable closure for multiple uses.

Perfect for cosmetics, dietary supplements, or any product requiring extended usability.

4. Medical Sachets

Manufactured with sterilized, high-barrier materials for safety.

Specifically designed for pharmaceuticals, including pills, ointments, and medical creams.

Specialized Machinery for Advanced Sachet Solutions​

1. Rotary Premade Pouch Pick Fill Seal Machine​

This advanced Rotary Premade Pouch Pick Fill Seal Machine​ is designed for high-speed processing of pre-made sachets. It features a rotary system that picks up pre-formed pouches, precisely fills them with the desired product, and seals them with utmost accuracy. Ideal for complex sachet designs, it ensures consistent filling even for viscous liquids or delicate powders. The rotary mechanism allows for speeds of up to 200 pouches per minute, making it perfect for large-scale production runs.​

2. Rotary Vacuum Packaging Machine​

Designed to enhance product shelf life, the Rotary Vacuum Packaging Machine removes air from sachets before sealing, creating a vacuum environment that prevents oxidation and microbial growth. This is particularly useful for perishable items like meats, cheeses, or snacks. The rotary design enables continuous operation, with multiple chambers working simultaneously to achieve high throughput—often exceeding 150 packages per minute. Its vacuum sealing technology ensures optimal preservation while maintaining the sachet’s compact form.​

3. Carton Packing Machine​

After sachets are filled and sealed, Carton Packing Machines come into play to organize them into retail-ready cartons. These machines automatically count, stack, and place sachets into cardboard boxes, ensuring neat arrangement and efficient packaging. Equipped with robotic arms and vision systems, they can handle various sachet sizes and configurations, even adapting to irregularly shaped pouches. Some models can pack up to 100 cartons per minute, streamlining the final stage of the production process.​

4. Thermoforming Machine​

Thermoforming Machines offer a versatile solution for creating sachets from flat plastic sheets. The process involves heating the plastic to a pliable state, forming it into molds to create the pouch shape, filling it with product, and then sealing it. This method is ideal for custom-shaped sachets or those requiring unique structures. Thermoforming machines can work with a wide range of materials, including biodegradable films, and offer high precision in pouch formation. They are suitable for both small-batch and large-scale production, with some models capable of producing over 300 sachets per minute.​

5. Horizontal Flow Wrapper​

Perfect for packaging multiple sachets together or wrapping individual items, the Horizontal Flow Wrapper uses a continuous film to enclose products in a horizontal motion. This machine is highly versatile, able to wrap sachets of different sizes and shapes, as well as bundle multiple sachets into a single package. It features adjustable film tension and sealing parameters to ensure tight, secure wrapping. With speeds reaching up to 400 packages per minute, it’s an efficient choice for high-volume production lines.​

6. Multi-head Weigher​

Accuracy is key in sachet filling, and the Multi-head Weigher delivers precise dosing for granular or powdered products. This machine uses multiple weighing hoppers to measure product quantities with exceptional accuracy, typically within ±1 gram for most applications. It works in conjunction with filling machines to ensure each sachet receives the exact amount of product. The multi-head design allows for rapid weighing and dispensing, with some models capable of handling up to 100 weighments per minute, making it essential for high-speed production lines.​

Technological Innovations in Sachet Machinery​

Recent advancements in sachet manufacturing equipment focus on sustainability and versatility. Biodegradable material-compatible machines now allow producers to create eco-friendly sachets from plant-based films, while multi-functional machines can switch between different materials and filling types with quick-changeover components. Smart controls and IoT connectivity in modern machines also enable real-time production monitoring, error detection, and maintenance scheduling, enhancing overall operational efficiency.​

In summary

Sachets serve as indispensable packaging solutions across industries, and their production is driven by a diverse range of sophisticated machines. From precise filling and sealing to advanced vacuum packaging and carton packing, each piece of equipment plays a vital role in ensuring sachets meet both functional and commercial requirements while adapting to evolving market demands.

Vacuum-packed food typically lasts 3–5 times longer than conventionally stored food, depending on the type of food, storage conditions, and packaging quality. By removing oxygen and sealing out contaminants, vacuum packaging significantly slows spoilage, oxidation, and microbial growth.

Why Vacuum Packaging Extends Shelf Life

Oxygen and moisture are primary culprits in food degradation. Vacuum packaging eliminates up to 99% of oxygen from the package, inhibiting aerobic bacteria and mold while preserving texture, flavor, and nutrients. For example:

*Meat and fish: Lasts 6–12 months (frozen) vs. 3–6 months in standard packaging.

*Cheese: Up to 8 months vs. 1–2 weeks when exposed to air.

*Dry goods (e.g., coffee, nuts): 12–24 months without staleness or rancidity.

Achieving Consistency: The Role of Industrial Equipment

While home vacuum sealers work for small-scale use, commercial-grade results demand precision and speed. This is where innovations like rotary vacuum packaging machines shine. Designed for high-volume production, these machines automate the entire process—evacuating air, sealing packages, and cutting them in a single motion—ensuring airtight protection for every item. Their reliability minimizes human error, maintains uniform seal quality, and complies with strict food safety standards. For producers, this technology isn’t just about efficiency; it’s a critical tool for delivering vacuum-packed foods that truly meet their extended shelf-life potential.

Factors Affecting Longevity

Even with vacuum packaging, shelf life depends on:

*Initial food quality: Fresher ingredients last longer.

*Storage temperature: Refrigeration or freezing further extends preservation.

*Packaging material: High-barrier films block oxygen and moisture effectively.

Best Practices for Consumers

*Always label packages with dates.

*Store vacuum-sealed items in cool, dark environments.

*Inspect seals for leaks before long-term storage.

Final Thoughts

Vacuum packaging revolutionizes food preservation, but its effectiveness hinges on proper execution. For industries, advanced tools like rotary vacuum machines ensure scalability and consistency, bridging the gap between laboratory-perfect conditions and real-world production. Whether you’re a home user or a business, understanding these principles helps maximize the lifespan of vacuum-packed foods—safeguarding flavor, nutrition, and safety far beyond traditional methods.

The packaging industry has undergone a transformative shift in recent years, driven by automation, sustainability, and precision engineering. From food and pharmaceuticals to consumer goods, advanced machinery like horizontal flow wrappers, vertical form fill seal machines, and automated carton packing systems are redefining efficiency and scalability. Here’s a closer look at the technologies powering this revolution.

1. Horizontal Flow Wrappers: Speed Meets Versatility

A horizontal flow wrapper is a cornerstone of high-speed packaging lines, ideal for wrapping individual products such as candy bars, biscuits, or medical devices. This machine uses a continuous film to encase items horizontally, sealing the ends with precision. Modern versions integrate adjustable heat controls and compatibility with biodegradable films, aligning with eco-friendly packaging trends.

2. Vertical Form Fill Seal (VFFS) Machines: All-in-One Efficiency

The vertical form fill seal machine is a marvel of automation. It creates bags from scratch by forming a roll of film into a pouch, filling it with product (like grains, powders, or liquids), and sealing it—all in one vertical motion. Its compact design minimizes floor space, while advanced sensors ensure consistent portioning and reduced material waste, making it a staple in food and pharmaceutical industries.

3. Premade Pouch Machines: Flexibility for Custom Designs

Unlike traditional form-fill-seal systems, a premade pouch machine handles pre-manufactured pouches (e.g., stand-up bags, spouted pouches). Equipped with robotic arms and vision systems, it swiftly fills and seals these ready-to-use pouches, perfect for brands prioritizing eye-catching, customizable packaging for snacks, beverages, or cosmetics.

4. Form Fill and Seal (FFS) Machines: Adaptable Packaging Solutions

The broader category of form fill and seal machines includes both vertical and horizontal systems. These machines adapt to diverse product shapes and sizes, offering flexibility for industries requiring frequent packaging changes. For example, a horizontal wrapper might handle bulky items like books or hardware, while a vertical variant focuses on granular products.

5. Automated Carton Packing Machines: Streamlining Logistics

Completing the packaging line, an automated carton packing machine efficiently loads finished products into cartons, seals boxes, and prepares them for palletizing. This technology is critical for e-commerce and bulk manufacturing, reducing labor costs and ensuring secure transit. Some systems even integrate AI to optimize box sizes, cutting down on wasted space and materials.

Why Automation Matters

The shift toward automated packaging machinery isn’t just about speed—it’s about sustainability and precision. IoT-enabled devices allow real-time monitoring of energy use and predictive maintenance, while AI-driven systems minimize errors. For instance, a vertical form fill seal machine can adjust sealing temperatures dynamically to prevent film tears, and a horizontal flow wrapper might recalibrate film tension based on product dimensions.

The Future: Smarter, Greener, and More Adaptive

As demand for sustainable packaging grows, REZPACK machinery manufacturers are innovating with energy-efficient motors, recyclable materials, and modular designs. Hybrid systems that combine premade pouch filling with automated carton packing are also emerging, enabling end-to-end solutions for complex supply chains.

Whether it’s a high-speed horizontal flow wrapper for snack production or a vertical form fill seal machine for pharmaceuticals, these technologies underscore a universal truth: the future of packaging lies in smarter machines that do more with less—less waste, less energy, and less room for error.

Packaging plays a vital role in product protection, shelf life, and brand presentation. The two most common packaging machines used by the industry are the Vertical Form and Seal Machine (VFFS) and the Horizontal Form and Seal Machine (HFFS). While both automate the packaging process, they differ in design, functionality, and applications.

This article explores the differences between Vertical Form and Seal Machine and Horizontal Form and Seal Machine, focusing on Vertical Form and Seal Machine, its benefits, and how it compares to horizontal form and seal machines.

I. What is a Vertical Form and Seal Machine (VFFS)?

A Vertical Form and Seal Machine is a packaging system that forms a roll of film into a bag in a continuous vertical motion, then fills the bag with the product and seals it. These machines are widely used for packaging:

Snacks (chips, nuts, candies)
Granular products (powders, grains, seeds)
Liquids (sauces, beverages)
Pharmaceuticals (pills, capsules)

Main features of VFFS machines:

Space saving – vertical operation, takes up less space.
High speed packaging – suitable for small and medium-sized products.
Various packaging styles – pillow bags, gusseted bags or stand-up bags can be produced.
Reduce material waste – use pre-rolled film to reduce excess packaging.

II. What is a horizontal form-fill-seal machine (HFFS)?

Horizontal form-fill-seal machine can form bags or trays horizontally for larger or irregularly shaped products. Common applications include:

Frozen foods (pizza, vegetables)
Bakery goods (bread, cookies)
Medical devices (syringes, test kits)
Non-food items (toys, hardware)

Main features of HFFS machines:

Better for larger products – more efficient handling of larger or rigid items.
Tray sealing capability – can form rigid or semi-rigid packaging.
Higher production capacity – typically used in high-volume packaging lines.

III. Vertical vs. Horizontal Sealers: Key Differences
 

IV. Which one should you choose?

Vertical or horizontal sealer depends on your product type, production speed and packaging requirements.
 

When to use a vertical full sealer:

For powders, granules or liquids (e.g., coffee, snacks, detergents)
Limited space in production facilities
High-speed, cost-effective packaging

When to use a half sealer:

For large or oddly shaped items (e.g., frozen foods, medical devices)
Need rigid or tray packaging
Large-volume production of larger products

V. Customized packaging solutions

After 32 years of intensive cultivation in the packaging industry, Ruizhi has developed and produced a variety of packaging machines for a variety of applications and has close ties with the international market. The brand's equipment is exported to more than 40 countries and serves more than 3,000 domestic and foreign companies. Ruizhi has partners in Southeast Asia, Europe and the United States, including internationally renowned brands such as Nestlé, Arvato, Hershey, and Colgate.
 

We are well aware that different companies have different needs and adopt customized solutions. We can also select the right equipment for you according to your needs and create professional equipment for your production.

VII. Conclusion

Vertical full-cap sealers and horizontal cap sealers each have their own unique advantages depending on the specific application. Vertical fill-and-seal machine are ideal for small, granular or liquid products, and their compact design combines speed and efficiency. Horizontal fill-and-seal machine, on the other hand, are more suitable for larger items that require tray or pillow packaging.
 

By understanding the differences between these two packaging systems, companies can choose the right machine to optimize efficiency, reduce waste, and improve product appearance.