Case erecting and bag placing
Case erecting and bag placing, automate two critical packaging steps in one reliable process
In many U.S. packaging operations, performance is already decided before the product even enters the box. If cases are not erected consistently, or inner bags are not placed correctly, the rest of the line has to compensate. That leads to downtime, rework, and unnecessary labor pressure.
That is exactly why case erecting and bag placing have become essential steps in modern packaging automation.
Case erecting is the process of forming a flat box into a stable, square case, ready for filling. Bag placing, also known as bag inserting, is the step where a prefabricated liner is placed into that case, crate, bucket, or container.
These steps may seem straightforward, but in practice they directly impact hygiene, throughput, labor efficiency, packaging consistency, and overall line performance.
At Niverplast, bag placing is where it all started. The company introduced EasyOpen bags and later developed the first automated bag placing system after a customer asked a simple question, can this be automated? That mindset still defines our approach today, practical solutions, built for reliability, without unnecessary complexity.
Why automate case erecting and bag placing?
Manual case setup and bag insertion can work at low volumes. But as production scales, these steps often become bottlenecks. They introduce variability, misaligned liners, downtime, and increased labor dependency.
Automation removes that uncertainty. Every case is formed the same way. Every bag is placed accurately. Production keeps running without interruptions for refilling or manual corrections.
The result is a stable, repeatable process that supports the entire packaging line, from filling and weighing to sealing and palletizing.
For U.S. manufacturers in industries such as dry goods, frozen foods, protein processing, seafood, and E-commerce fulfillment, automation also improves hygiene standards, reduces reliance on labor, and supports long-term operational scalability.
One machine, two jobs
A strong example of this approach is the CombiPlast, Niverplast’s integrated solution for case erecting and bag placing.
This system combines both steps into one compact machine, allowing you to streamline the start of your packaging line without increasing your footprint. It is designed for continuous production and consistent output.
Key capabilities include:
- Up to 18 cases per minute
- 24/7 continuous operation
- Fast and easy size changeovers
- Recipe management for multiple box formats
- Left or right-hand configurations for flexible integration
The CombiPlast works with prefabricated EasyOpen bags, including ultra-thin variants when sealing is not required. This makes it especially suitable for operations looking to combine compact design with dependable performance.
When flexibility matters
Not every line requires a combined solution. In many U.S. facilities, cases are already erected upstream, or flexibility is needed in how bag placing is integrated.
For those situations, Niverplast offers stand-alone solutions like the EasyPlast.
The EasyPlast can handle a wide range of box and bag sizes and reaches speeds of up to 25 bags per minute. It can operate independently or be integrated into an existing line.
The principle remains the same, reliable bag placement, minimal operator involvement, and a system that adapts to your process instead of forcing you to adapt to the machine.
The advantage of premade EasyOpen bags
A key part of the Niverplast concept is the use of premade EasyOpen bags. These liners are tailored to your packaging format and designed for both manual and automated use.
Because the bags are preformed, there is no need for on-machine sealing and cutting like with roll film systems.
This brings clear operational benefits:
- Reduced downtime
- Simplified machine design
- Lower maintenance requirements
- Consistent bag quality
- Improved hygiene
In many applications, material usage can also be reduced, with examples of up to 30 percent less plastic compared to traditional solutions.
This shifts the conversation from just packaging to total cost of ownership, uptime, and process reliability.
Proven in real production environments
Niverplast systems are used across a wide range of industries, including food processing, seafood, meat, oils and fats, medical applications, and E-commerce fulfillment.
Applications include:
- High-speed case erecting and bag placing up to 22 boxes per minute
- Precise liner placement in polystyrene boxes without air
- Flexible handling of varying bag sizes
- Cleanroom-compatible packaging solutions
Every application is different. The right solution depends on your product, packaging format, production volume, hygiene requirements, and level of flexibility.
What to consider when selecting a solution
If you are evaluating automation, ask yourself:
- Do you need a combined system or a stand-alone bag placer?
- How many box sizes do you run, and how often do you change?
- Are you working with boxes only, or also crates and containers?
- How critical are uptime, hygiene, and labor reduction?
Niverplast solutions are designed around these real-world questions, from integrated systems like the CombiPlast to flexible solutions like the EasyPlast, supported by tailored bag solutions.
Built for the U.S. market
Niverplast supports customers across North America through its dedicated presence in the United States. With local support, service, and application expertise, we help manufacturers integrate packaging automation smoothly into their operations.
Whether you are upgrading an existing line or designing a new facility, our team works closely with you to deliver a solution that fits your process.
When should you contact Niverplast?
It may be time to talk to us if you recognize one or more of the following:
- Your packaging line is slowed down by manual case setup or bag placing
- You are dealing with inconsistent bag placement or product contamination risks
- Labor availability or costs are impacting your operation
- You want to reduce downtime and increase line efficiency
- You are scaling production and need a future-proof solution
- You are looking to reduce plastic usage or simplify your packaging process
If your process starts with a box and a liner, getting those first steps right makes all the difference.
