The Power of Combining Case Erectors and Case Sealers

October 06, 2025 12:19 PM
Cardboard boxes travel down the conveyor belt of a case erector machine as it moves towards a large roll of packing tape.

Keeping the packaging line moving smoothly is a challenge in warehouses. Bottlenecks can appear out of nowhere, slowing down the entire operation and putting shipping deadlines at risk. If you’re looking for a way to break through these barriers and boost your team’s output, discover the power of combining case erectors and case sealers.


This guide will walk you through exactly how this dynamic duo can help you increase efficiency, cut costs, and build a more resilient and scalable packaging operation. By the end, you’ll understand why this combination is a smart move for any forward-thinking warehouse.


Case Erectors and Case Sealers: Understanding the Equipment

Before we explore the benefits of pairing them, let’s get a clear picture of what each machine does. They perform distinct tasks and work together to create a seamless packaging process.


Case Erector

A case erector, also known as a box former, takes a flat corrugated box and squares it into its three-dimensional shape. Then, it folds and seals the bottom flaps with tape or glue. This creates a perfectly formed, ready-to-pack box in seconds.


Case Sealer

Once a box has been filled with products, a case sealer closes the top flaps of the box and applies a secure seal, typically with tape. Case sealers come in various configurations, such as uniform machines that handle same-sized boxes and random sealers that can adjust to different box dimensions.


Now that we’ve defined the two machines, let’s explore the benefits of combining case erectors and case sealers.


Streamline Your Packaging Workflow

Manually forming and sealing boxes creates a choppy, stop-and-go workflow. An employee grabs a flat box, wrestles it into shape, tapes the bottom, and passes it to a packer, who pushes it toward someone else to seal the top. Each handoff is a potential delay.


When you combine an automated case erector and a case sealer, you create a continuous flow. The case erector feeds a steady stream of perfectly formed boxes directly to your packing stations. Once filled, these boxes move down the conveyor to the case sealer, which finishes the job. This removes the manual start-and-stop nature of the process, increasing your throughput.


Three cardboard boxes with open top flaps move along the metal conveyor belt on a case former machine.


Boost Operational Efficiency

Warehouse efficiency is all about maximizing output while minimizing delays. Manual box building is another bottleneck. A person can only assemble so many boxes per hour, and fatigue can slow them down. This impacts how many orders your team can process in a day.


Automating with case erectors and sealers can improve efficiency. These machines work at a consistent speed all day long, allowing your team to handle much higher volumes. With boxes being formed and sealed in a matter of seconds, the machines enable a faster pace across the entire packaging line.


Reduce Labor Costs

Labor is one of the biggest expenses for any warehouse, and assigning staff to repetitive tasks like building and taping boxes is not the best use of your resources. These manual jobs require dedicated personnel who could be performing more value-added activities, such as quality control or inventory management.


Combining case erectors and sealer machines automates these low-skill tasks. You can reassign the employees who were previously building boxes to more critical roles within the facility. Reduced manual labor leads to long-term savings on labor costs and allows you to allocate your team more strategically.


Improve Packaging Consistency

Inconsistencies are inevitable when assembling and sealing boxes by hand. Some boxes might not be perfectly square, bottom flaps might not align, and tape application can be messy or insufficient. These small errors can lead to bigger problems, such as product damage during transit or an unprofessional appearance upon arrival.


A case erector produces a perfectly square box every single time, and a case sealer applies tape neatly and securely. This level of consistency ensures that every package leaving your facility meets your quality standards.


Enhance Worker Safety

Manual box assembly can lead to worker injuries. Repetitive stress injuries (RSIs), such as carpal tunnel syndrome, are common among employees who perform the same motions over and over. Cuts from box cutters and back strain from awkward lifting are also risks.


By automating these tedious jobs, you reduce the physical strain on your employees. Case erectors and sealers handle the folding, lifting, and taping, which minimizes the risk of workplace injuries. This creates a safer work environment, improves team morale, and lowers your workers’ compensation claims.


Save Valuable Floor Space

Floor space is a hot commodity in warehouses. Cluttering your packing area with stacks of pre-assembled boxes or leaving wide gaps for manual workstations can eat up valuable real estate that could be used for storage or other operations.


Modern case erectors and sealers feature compact designs that eliminate the need for bulky workstations. By optimizing your layout, you free up floor space for other tasks, helping you make the most of your facility.


Reduce Material Waste

Manual taping often leads to material waste. Employees might use too much tape to secure a box, or they might apply it incorrectly, leading to damaged boxes that need to be discarded. These seemingly small costs add up over time.


Automated systems are calibrated for precision. A case sealer applies the exact amount of tape needed for a secure seal every time, reducing overuse. Similarly, case erectors handle boxes gently, minimizing the risk of damage during assembly. This careful material management helps you control costs and reduce waste.


Flat cardboard boxes sit on one end of a case erector machine. The machine forms a box at the end of the line.


Speed Up Order Fulfillment

Meeting tight shipping deadlines is crucial for customer satisfaction and avoiding penalties from retail partners. If your packaging line can’t keep up with the pace of incoming orders, you risk delays that could damage your business relationships.


The speed and reliability of an automated system with a case erector and sealer ensure that you can fulfill orders faster. With boxes prepared and sealed in a fraction of the time it takes to do it manually, you can process more orders per day and meet your deadlines with confidence.


Support Your Company’s Scalability

As your business grows, your order volume will increase. A manual packaging process can be overwhelmed by a sudden surge in demand, making it difficult to scale your operation. Hiring more people to build boxes is merely a temporary fix.


Investing in a case erector and sealer provides a scalable foundation for growth. These machines can handle high volumes, allowing you to easily increase your throughput as your business expands.


A Smarter Path to Packaging

Unlocking the power of combining case erectors and case sealers offers a comprehensive solution for your warehouse. This automated duo addresses the most common challenges in packaging operations.


Ready to see how an automated system can transform your packaging line? The experts at PackSmart can help. Contact us today to learn more about our wide selection of case erector machines and find the perfect solution for your warehouse.