Automatic Three Side Sealing Bag Making Machine – Factory Price, OEM Available

Introduction

If you are searching for a reliable automatic three side sealing bag making machine, you are in the right place. Whether you run a food packaging business, operate a flexible packaging plant, or manage procurement for a large manufacturing group, choosing the right bag making equipment directly affects your output quality, production efficiency, and long-term profitability.

Jiangyin Xinghong Packaging Machinery Co., Ltd. is a China-based manufacturer specializing in the design, development, and production of intelligent bag-making equipment. Founded in 2016 and located in Gushan Town, Jiangyin City, Jiangsu Province, Xinghong operates a 10,000-square-meter factory and produces a complete range of bag making machines — including three side seal, four side seal, center seal, stand-up pouch, zipper bag, and spouted bag machines.

This article covers everything international B2B buyers need to know about the automatic three side sealing bag making machine — from how it works and what industries use it, to technical specifications, OEM options, and how to choose the right supplier.

What Is an Automatic Three Side Sealing Bag Making Machine?

An automatic three side sealing bag making machine is industrial packaging equipment designed to produce flat pouches sealed on three sides — the left, right, and bottom — while leaving the top open for filling. These bags are widely used across food, pharmaceutical, pet food, chemical, and consumer goods industries.

The machine feeds a roll of flexible film, cuts it to the required bag length, and seals three sides using heat sealing bars. The process is fully automated, from film feeding and registration to cutting and stacking, which significantly reduces manual labor and improves production consistency.

Three side seal bags are one of the most common flexible packaging formats globally. They are simple to produce, cost-effective, and compatible with a wide range of packaging films including PE, PP, PET, nylon, aluminum foil laminates, and composite structures.

How Does a Three Side Sealing Bag Making Machine Work?

Understanding the working process helps buyers evaluate whether a machine fits their production requirements. Here is a step-by-step overview of how the machine operates:

•Film Unwinding: A roll of packaging film is mounted on the unwinding shaft. The machine uses a tension control system to maintain consistent film feeding without stretching or wrinkling.

•Film Registration: Sensors track the printed pattern on the film and align it precisely before each seal and cut cycle, ensuring the bag design is always centered.

•Heat Sealing: The film passes through horizontal and vertical sealing stations. Adjustable temperature controllers ensure consistent seals based on the film material and thickness.

•Bag Cutting: A cutting knife separates each finished bag from the film roll at the programmed bag length.

•Stacking or Conveying: Finished bags are stacked automatically or transferred to a conveyor for the next stage of the production line.

Xinghong machines use Panasonic PLC pulse control for high-precision bag length control, low failure rates, and stable long-term operation. An optional bus control system using the Xinye motion controller offers even faster computation speed and advanced customization capabilities.

Key Features of Our Automatic Three Side Sealing Bag Machine

Xinghong's three side sealing bag machine (Model X600) is built with industrial-grade components and designed for continuous production environments. Key features include:

•PLC Control System: Uses Panasonic PLC pulse control for precise bag length management and minimal downtime.

•Bus Control Option: Ethernet bus-based Xinye motion controller for advanced operational flexibility and easy custom function expansion.

•Remote Monitoring & Support: All machines support remote connection, allowing Xinghong engineers to assist customers in solving technical problems directly without requiring on-site visits.

•CNC-Manufactured Key Components: Critical mechanical parts are produced using Xinghong's own CNC machine tools, ensuring dimensional accuracy and consistent quality.

•Multi-Material Compatibility: The machine handles a wide range of film types — PE, PP, PET, NY, AL foil laminate, and composite films.

•Adjustable Bag Size: Bag width and length can be adjusted within the machine's specification range to produce different bag formats without major tooling changes.

•High-Speed Production: Suitable for medium to high-volume production environments with stable output speeds.

•Easy Operation Interface: Touchscreen HMI for straightforward parameter input and real-time monitoring.

•OEM & Custom Configuration: Machines can be customized in layout, sealing configuration, control system, and additional functions based on buyer requirements.

Technical Specifications of Three Side Sealing Bag Making Machine

The following table provides general technical specifications for reference. Exact parameters can vary based on OEM configuration and buyer requirements. Please contact Xinghong directly for a detailed specification sheet tailored to your production needs.

Types of Bags Made by Three Side Sealing Bag Machine

The automatic three side sealing bag machine is versatile and can produce a variety of bag formats depending on the film material and sealing configuration. Common bag types include:

•Standard Three Side Seal Flat Pouches: Simple, cost-effective flat bags sealed on three sides. Widely used for dry foods, snacks, nuts, and powders.

•Aluminum Foil Bags: High-barrier packaging for products sensitive to moisture, oxygen, or light — including coffee, pharmaceutical ingredients, and electronic components.

•High-Temperature Cooking Bags (Retort Pouches): Designed to withstand sterilization processes. Used for ready-to-eat meals, seafood, meat, and pet food.

•Vacuum Cooling Bags: Suitable for fresh meat, seafood, and perishable products that require vacuum sealing or modified atmosphere packaging.

•Composite Laminate Pouches: Multi-layer film structures combining PE, PET, nylon, or foil layers for enhanced barrier performance.

•Feed and Agricultural Bags: Larger format three side seal bags for animal feed, seeds, and agricultural chemicals.

Industries That Use Three Side Sealing Bag Making Machines

Three side seal pouches are used in virtually every industry that packages solid, granular, or powdered products. Key industries and applications include:

•Food & Snack Packaging: Nuts, chips, dried fruits, coffee, tea, sugar, flour, spices, and confectionery.

•Pet Food: Cat food, dog treats, bird feed, and aquatic feed packaged in flat pouches or laminate bags.

•Pharmaceutical & Nutraceuticals: Tablet pouches, powder sachets, herbal supplements, and single-dose packaging.

•Agricultural Products: Seeds, fertilizers, pesticide powders, and soil conditioners.

•Chemical Industry: Detergent powders, cleaning agents, and chemical additives in sealed flat pouches.

•Consumer Goods: Personal care products, hardware accessories, and small retail items.

•Medical Devices: Sterile pouches for disposable medical instruments and consumables.

The three side sealing machine for food packaging is especially in demand globally as consumer preference for flexible packaging continues to grow over rigid formats like cans and glass jars.

Why Choose Xinghong Three Side Sealing Bag Making Machine?

There are many bag making machine manufacturers in China. Here are the specific reasons why international buyers choose Xinghong:

Factory-Direct Manufacturing

Xinghong manufactures all machines in-house at its Jiangyin facility. All key mechanical components are produced using the company's own CNC machine tools. This gives Xinghong full control over quality, production lead times, and customization.

Strong Customization Capability

Every buyer's production requirements are different. Xinghong can design and arrange custom machine production within 45 days based on your specific bag size, film type, output speed, and automation level requirements.

Remote Monitoring & After-Sales Support

All Xinghong machines support remote connection so engineers can monitor machine status, diagnose issues, and guide operators through solutions without the need for costly in-person service visits. Emergency phone and video support is also available 24 hours a day, 7 days a week.

Reliable Control Systems

The use of Panasonic PLC systems and optional Xinye bus control ensures high accuracy in bag length control and low failure rates — critical for high-volume production environments.

Comprehensive Product Line

Beyond the three side sealing machine, Xinghong also produces center seal machines (H600), stand-up bag machines (D600), zipper bag machines, and spouted bag machines. This makes Xinghong a one-stop supplier for buyers who need multiple bag formats.

Three Side Sealing Bag Machine – Factory Price vs Market Price

One of the most common questions from international buyers is: why is the factory price from a Chinese manufacturer significantly lower than what local distributors or trading companies charge?

The answer is simple: when you buy directly from a manufacturer like Xinghong, you eliminate the distributor margin, which typically adds 20% to 40% on top of the factory price. Direct factory purchasing also gives you:

•Direct technical communication with the engineering team

•Faster response on customization requests

•More flexible payment terms

•Access to OEM and private label options

•Long-term pricing stability for repeat orders

Trading companies and agents often resell machines from multiple factories at a markup. When you work directly with Xinghong, you know exactly who manufactured your machine and who to contact for after-sales support.

For an accurate quotation based on your specific requirements — bag size, film type, production speed, and delivery destination — contact Xinghong directly through the website.

OEM & Custom Three Side Sealing Bag Making Machine Solutions

Xinghong offers full OEM and custom machine development for buyers who need machines tailored to specific production requirements. Common OEM requests include:

•Custom bag size range beyond the standard machine specifications

•Special film handling systems for thin or thick composite films

•Integration with automatic filling machines, labeling machines, or checkweighers

•Custom branding, color scheme, and HMI language localization

•Modified electrical standards for specific export markets (CE, UL, etc.)

•Upgraded sealing systems for high-barrier or heavy-gauge films

OEM production is typically completed within 45 days from order confirmation, depending on the complexity of the customization. Xinghong's engineering team works closely with buyers during the design phase to ensure the machine meets production goals before manufacturing begins.

If you are a distributor, systems integrator, or OEM buyer looking for a reliable PLC control bag making machine manufacturer in China, Xinghong welcomes long-term supply cooperation.

Three Side Sealing Bag Making Machine for Food Packaging

Food packaging is one of the largest and most demanding application areas for three side seal flexible packaging machines. Buyers in this segment typically require:

•Machines compatible with food-grade films including PE, PP, and nylon laminates

•Consistent sealing quality to ensure hermetic seals that protect shelf life

•High-temperature sealing capability for retort and cooking pouches

•Clean, hygienic machine design suitable for food production environments

•Registration accuracy to align printed designs correctly on branded packaging

Xinghong's X600 three side seal bag machine is suitable for a wide range of food packaging applications including nut bags, rice bags, cat food bags, fresh meat bags, high-temperature cooking bags, and aluminum foil pouches for coffee or snacks.

If your production line handles food products and you need a three side sealing machine for food packaging, Xinghong's team can advise on the correct machine model, film specification, and sealing parameters for your specific product.

How to Choose the Right Three Side Sealing Bag Machine for Your Business?

Choosing the right three side seal flexible packaging machine requires evaluating several factors. Here is a practical guide for B2B buyers:

1. Define Your Bag Size Requirements

Measure the bag width and length you need to produce. Make sure the machine's adjustable range covers your full product range, including any planned future products.

2. Identify Your Film Type

Different films require different sealing temperatures and pressure settings. Confirm that the machine is compatible with your target film — whether that is PE/PE, PET/PE, NY/PE, AL foil laminate, or a composite structure.

3. Estimate Your Required Production Speed

Match the machine's output capacity (bags per minute) to your production volume requirements. Over-specifying wastes investment; under-specifying creates bottlenecks.

4. Consider Automation Level

Do you need manual film loading, semi-automatic, or fully automatic operation? Higher automation levels reduce labor costs but increase machine investment.

5. Evaluate After-Sales Support

For international buyers, after-sales service quality is critical. Look for manufacturers that offer remote diagnosis, spare parts availability, and clear response time commitments.

6. Verify Supplier Credibility

Ask for factory photos, machine videos, and references from existing customers in your region. Request a detailed technical specification sheet before placing any order.

Three Side Sealing Bag Machine – Quality Testing & Certification

Before any Xinghong machine leaves the factory, it undergoes a rigorous internal quality inspection process. This includes:

•Mechanical assembly inspection to verify dimensional accuracy of all machined components

•Electrical system testing to confirm all control circuits, sensors, and safety interlocks function correctly

•Trial production run using customer-specified film and bag parameters

•Seal quality testing — visual inspection and peel strength testing of finished bags

•Remote monitoring system activation and connectivity verification

Xinghong also supports remote detection after delivery, allowing the engineering team to diagnose any issues that arise during commissioning or production at the customer's facility.

For buyers who require specific certifications or compliance documentation for their market, please contact Xinghong to discuss your requirements during the inquiry stage.

Three Side Sealing Bag Making Machine – Shipping & Delivery Worldwide

Xinghong exports bag making machinery to customers across multiple regions including North America, Europe, the Middle East, Southeast Asia, South America, and Africa. The export process is straightforward:

•Machines are professionally packed in wooden export crates with protective foam and moisture barrier wrapping.

•Standard shipping is by sea freight (FCL or LCL depending on machine quantity).

•Air freight is available for urgent spare parts shipments.

•Standard lead time for production is approximately 45 days from order confirmation (OEM orders may vary).

•Xinghong provides full export documentation including commercial invoice, packing list, certificate of origin, and bill of lading.

•Installation guidance is provided remotely via video call. On-site installation support can be arranged upon request.

If you are importing packaging machinery from China for the first time, Xinghong's team is experienced in working with international buyers and can assist with shipping coordination, customs documentation, and technical commissioning guidance.

Frequently Asked Questions About Three Side Sealing Bag Making Machine

Q1: What films are compatible with a three side sealing bag making machine?

The machine is compatible with a wide range of flexible packaging films including PE, PP, PET, nylon (NY), aluminum foil laminates, and multi-layer composite films. The sealing temperature and pressure are adjustable to suit different film materials and thicknesses.

Q2: Can the machine be customized for our specific bag size?

Yes. Xinghong offers full OEM and customization services. If your required bag dimensions fall outside the standard machine range, the engineering team can design a custom configuration. Custom machines are typically completed within 45 days of order confirmation.

Q3: What is the minimum order quantity (MOQ) for purchasing a three side sealing bag machine?

There is no strict minimum order quantity. Single machine orders are accepted. For buyers purchasing multiple machines or placing repeat orders, pricing and lead time arrangements can be discussed directly with Xinghong.

Q4: How is after-sales support provided to international buyers?

Xinghong provides 24/7 video and phone support for emergency issues. All machines support remote monitoring, allowing the engineering team to connect directly to the machine, review operating data, and guide operators through fault resolution. Spare parts can be shipped internationally as needed.

Q5: How long does production and delivery take?

Standard production lead time is approximately 45 days from order confirmation. Delivery time by sea freight varies by destination — typically 15 to 40 additional days depending on the port of discharge.

Q6: Is it possible to integrate the three side sealing machine with a filling machine or other equipment?

Yes. Xinghong can design machines with integration interfaces for automatic filling machines, labeling systems, conveyors, and checkweighers. Buyers should describe their full production line requirements during the inquiry stage so the machine can be configured accordingly.

Conclusion

The automatic three side sealing bag making machine is one of the most widely used pieces of flexible packaging equipment in global manufacturing. It is versatile, reliable, and cost-effective for producing flat pouches across food, pharmaceutical, pet food, agricultural, chemical, and consumer goods industries.

Xinghong Packaging Machinery, founded in 2016 and based in Jiangyin, Jiangsu Province, offers factory-direct pricing, strong customization capabilities, comprehensive after-sales support, and remote monitoring technology — making it a practical sourcing choice for international B2B buyers who need reliable Chinese manufacturing partners.

Ready to source a three side sealing bag making machine? Contact Xinghong today to request a product quotation, technical specification sheet, machine video, or OEM consultation. Our team responds quickly to international inquiries and is ready to support your packaging project from enquiry through to commissioning.

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