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Pack 403
Pack 403

Pack 403

Ready to ramp up? The Pack 403 keeps pace.

The Pack 403 horizontal flow wrapper doesn’t just keep up — it leads the way. Built for higher speed packaging such as of bars, cookies, crackers, chocolate, and bakery goods, it delivers smooth operation, fast format changeovers, and consistent sealing without the usual production headaches.

Operators get clear guidance for film handling, easier access for service, and fewer errors — even during speed changes or line stops. With full connectivity via Synexio, you’re always one step ahead with live performance data, maintenance insights and remote support.

Explore what’s possible with the Pack 403

Engineered for precision at speed, the Pack 403 flow-wraps a wide variety of products — from multi-texture bars to fragile cookies — with excellent seal integrity, film control, and pack consistency. Whether handling high-output formats or frequent product changeovers, it delivers repeatable results.

Ready to unlock reliable performance — no matter what’s in the product mix?

Designed to fit your product — and your pace

The Pack 403 horizontal flow wrapper integrates seamlessly with a wide range of automated feeding and distribution systems — giving you the flexibility to handle everything from single-lane bar lines to multi-leg, high-output operations.

Feeding systems are available in multiple lengths and layouts to fit your production space, and support both robotic loading and belt-based distribution. You can add gap closing, buffering, inline stacking, or card placement for full control of your infeed flow and pack configuration.

Key capabilities include:

  • Robotic product loading across one or multiple legs
  • Product distribution via pullnose or acceleration belts
  • Inline grouping and stacking for multipacks
  • Collating and stacking for retail-ready packs
  • Buffering to maintain continuous flow
  • Gap closing and precise metering for smooth infeed timing
  • Product orientation and pre-turning for optimal presentation
  • Cardstock feeders to place support boards under products for added stability inside the package

Need downstream automation? Syntegon offers complete system integration with cartoning, case packing and end-of-line solutions — all designed for seamless operation with the Pack 403.

Available in left-to-right and right-to-left machine configurations to match your factory layout.

Engineered for efficiency, precision, and ease of use

The Pack 403 horizontal flow wrapper redefines machine operation with features that streamline every aspect of daily use. The wrapper and HMI are aligned for a truly user-centered experience, making it easier to run, maintain, and adjust — even at higher speeds.

Key highlights:

  • Tool-less adjustments and recipe storage via the intuitive HMI for fast, error-free format changes
  • Light, tool-less film former to speed up changeovers and improve ergonomics
  • Precise film tension control to reduce jams and ensure consistent package appearance during speed changes and starts/stops
  • Clear splice preparation instructions on the splicing table for more successful film changes
  • Manual hand wheel to safely rotate the cutting head for easier maintenance
  • Crimper setup with repeatable locking and easy-to-read pressure gauges for consistent, precise sealing
  • Equipped with the latest Syntegon HMI and Synexio connectivity for improved usability, monitoring, and data driven production

Want to see how the Pack 403 can speed up your packaging?

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Pillow pack
The go-to format for flow wrapping — compact, cost-efficient, and versatile. Suitable for everything from snack foods to medical products. 
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Gusseted pack for taller items
Need extra vertical space? This format fits bulkier or higher-profile products without sacrificing seal strength or shelf appeal. 
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Euro hole and hang hole punch

Ideal for retail displays. Adds hanging functionality for pegboards — commonly used in snack packaging, hardware, and promotional sample packs. 

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Straight-cut seals
Delivers a clean, polished finish. A preferred choice for premium items where presentation is key, such as chocolates or beauty products. 
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Zig-zag cut
Fun and functional. The wavy edge adds visual flair and makes it easier for consumers to open. Great for grab-and-go items or kids’ products. 
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Tear notch
Designed for easy opening — no scissors needed. Perfect for single-use pouches, snack packs, or portable medical applications.
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Horizontal seal serrations
The standard end-seal format in flow wrapping. Serrations run across the package’s width, ensuring consistent pressure, predictable tear behavior, and a familiar aesthetic. Commonly used for snacks, baked goods, and everyday CPG items. 
vertical-packaging
Vertical seal serrations

Serrations run lengthwise, giving the package a modern, premium look. Offers more directional control when tearing and is ideal for slim or upscale products. Requires a tailored sealing jaw setup. 

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Test before you commit – on your own product


Our U.S-based test lab helps you validate real outcomes before you invest:

  • Send your product and film
  • We’ll test it on the Pack 403
  • Receive wrapped samples, seal analyses, and a short video of your product on the line
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Made in the USA. Serviced in the USA.


The Pack 403 is manufactured in New Richmond, WI and supported across North and Latin America with:

  • Free U.S.-based helpdesk support with fast response times
  • Local spare parts inventory for rapid turnaround
  • Service technicians based across the U.S.
  • PMMI-certified training, remote and on-site

Smarter Packaging with Synexio

The Pack 403 is ready for Industry 4.0 with Syntegon’s Synexio digital solution. Monitor machine data, track performance, and optimize production remotely — all in one intuitive dashboard.

Key Benefits:

  • Live OEE Tracking: Get real-time insights on availability, performance, and quality
  • Remote Monitoring: View production data from anywhere
  • Data-Driven Maintenance: Predict issues before they cause downtime
  • Secure Cloud Platform: Built for data privacy and industrial security
  • Modular Subscriptions: Choose what you need – from machine-level insights to line-wide analytics

See the Pack 403 in action: Real products, real results

See the Pack 403 flow wrap bars, cakes, cupcakes, and wafers — showcasing its speed, precision, and versatility.

One of the videos also highlights the sustainability-focused paper form upgrade kit, highlighting its capability to handle sustainable, paper-based packaging materials.

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Let’s scale your packaging — together


The Pack 403 helps you deliver more: faster changeovers, consistent results, and smooth integration with your line and your team. It supports paper-based packaging, connects to Synexio for real-time insights, and adapts as your needs evolve.

Let’s build a packaging setup that works today — and gets you ready for what’s next — together.

Related machines and technologies

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Pack 103
The Pack 103 is an entry-level horizontal form-fill-and-seal (HFFS) machine that packages products by wrapping them in rollstock film and sealing them on all sides. 
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Pack 202
Whether you're scaling up from entry-level equipment or need a more flexible solution for multi-format production, the Pack 202 is built for where your business is headed.
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Pack 303 LD
Whether you’re upgrading for better seal integrity or need to handle sensitive products with ease, the Pack 303 LD is built for simple operation and maintenance — helping you grow from where you are.
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Pack 303 IN/ID
From soft products to multipacks, the Pack 303 IN and ID are designed to handle what others can’t — with better control and stronger seals.
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Pack 301 SK
Whether you’re packaging oversized productsbundling multi-packs, or integrating shrink film into your line, the Pack 301 SK is built to handle it
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Pack 403 HE
Whether you’re packaging fresh or frozen foods, navigating strict sanitation requirements, or simply looking for a system that’s easier to clean and operate, the Pack 403 HE is built to support your goals
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All Syntegon horizontal flow wrappers
Visually appealing, cost-efficient and extremely flexible: Flow wraps are the all-round solution for the packaging of food products and other piece goods.

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