High-Speed Fully Automatic Random Case Sealer

Automatic Adjustment for Every Case Size

The core of the LP-555A is a preprogrammed PLC that senses each carton as it enters and sets the machine to that size before the box reaches the tape head. Because the adjustment is automatic, operators do not stop to reconfigure the machine between SKUs, which keeps a mixed-size line moving at a steady pace. A patented sealing design maintains consistent tape placement on every carton, and dual direct-drive side belts move boxes through with an even grip.

This PLC-controlled case sealer comes standard with the components that matter on a high-volume line:

• Fully automatic height and width adjusting program
• Patented design for consistent sealing on every carton
• Dual direct drive side belts
• Adjustable tape overlap
• Locking casters
• Easy-access tape heads

For operations that need more from the machine, the LP-555A supports several optional upgrades:

• Extension roller table
• High-speed belt package
• Case stopping device
• Safety fence

The high-speed belt package suits plants pushing for greater throughput, while the extension roller table and case-stopping device help with longer cartons and controlled staging. As an automatic tape sealer that adjusts itself, the LP-555A is ideal for operations where case dimensions change throughout the day.

Why Choose the LP-555A for Mixed-SKU Lines

Operations that pack a single carton size can run a uniform machine, but facilities handling varied dimensions need a random size case sealer that keeps up without constant adjustment. The LP-555A was designed for exactly that situation. 

Its automatic sizing removes the labor of manual changeovers and the errors that come with them, so your throughput stays consistent even when the case mix does not. As a high-speed case sealer with a compact 51-inch footprint, the LP-555A fits into tight end-of-line layouts that cannot spare floor space. Locking casters let you reposition it as your workflow changes, and the integrated conveyor ties it into upstream and downstream equipment. 

For 3PLs and fulfillment centers running mixed orders, this random box sealer is a practical piece of industrial packaging equipment that earns its place on the floor.

Need a Custom Solution?

We build custom case sealing solutions for your industry. 

Landen offers custom design configurations on specialized automatic systems instead of the industry-standard out-of-the-box approach. If your line runs oversized cartons or needs a specific safety configuration, our engineering team can build a random case sealer around your requirements.

Have Questions? Contact Our Team of Experts

We would love to hear from you. Whether you have a question about the LP-555A or need help spec'ing the right case sealing machine for your line, our team is ready to help. Fill out the contact form, and we will get back to you as soon as possible.

Frequently Asked Questions About the LP-555A Random Run Case Sealer

Does the LP-555A require compressed air to operate?

Yes. Along with a 110-volt single-phase power supply, the LP-555A runs on compressed air at 6 kgf/cm² (roughly 85 psi). The air supply powers the automatic clamping and sizing actions that let the machine adjust to each carton, so your facility needs an air line available at the installation location. Our team will confirm the exact air and power requirements when we spec the unit for your line.

What kind of service and support does Landen provide for the LP-555A?

Landen backs every machine with 24/7 domestic parts and service support, so if a unit goes down, help is reachable around the clock to keep your line running. We also support your operators and maintenance staff well beyond the initial startup. That long-term backing is part of what makes the LP-555A a sound investment as an industrial case sealer.

Can the LP-555A be paired with other end-of-line equipment?

Yes. Landen builds its case sealers and the rest of its packaging equipment in-house, so the LP-555A is designed to work alongside the rest of your line. Many operations run it together with a strapping machine or a stretch wrapper to automate the packaging sequence after sealing. Our engineering team can also match it to a case erector on the front end, so cartons are formed up front and sealed downstream in one continuous flow.