UK Pump Diaphragm Manufacturer Improves Sealing Performance with SEVERN-DT

UK Pump Diaphragm Manufacturer Improves Sealing Performance with the SEVERN-DT

A leading UK manufacturer of pump diaphragms upgraded its packaging operation with the SEVERN-DT automatic bagging machine from Severn Packaging. The new system solved persistent sealing issues on heavy-duty 125-micron bags, delivered production speeds of up to 25 bags per minute with overprinting, reduced bag waste through Next Bag Out printing and shortened product changeovers.

The Customer

The customer manufactures specialist pump diaphragms for industrial applications. These components require robust, reliable packaging to protect them during storage, handling and transport.

The business was already using automatic bagging equipment, but the existing machine struggled to create consistent seals on the thicker 125-micron polyethylene bags required for the application.

The Challenge

Inconsistent sealing was affecting operator confidence and creating the risk of rework. The existing system also generated unnecessary bag waste during print setup and product changeovers, while the physical size and layout of the equipment made changeovers slower than required.

The key project objectives were to:

• Achieve reliable seals on 125-micron polyethylene bags.
• Maintain high production speeds while overprinting onto each bag.
• Reduce bag waste during print setup and job changes.
• Shorten changeover times between products and bag formats.
• Install a compact tabletop system with a small factory footprint.
• Improve overall packaging consistency and operator confidence.

The Severn Packaging Solution

Following application discussions and testing with the customer’s own products and packaging materials, Severn Packaging supplied the SEVERN-DT automatic bagging machine with integrated overprinting and Next Bag Out functionality.

The complete project included:

• SEVERN-DT tabletop automatic bagging machine.
• Integrated overprinting onto each bag.
• Next Bag Out printing to reduce setup waste.
• Machine installation and commissioning by Severn Packaging.
• Operator training.
• Label design software.
• 12-month parts and labour warranty.
• Ongoing technical and aftersales support.

Severn Packaging currently supplies the machine’s print consumables and ongoing support. Following the successful installation, the customer is also placing its first bag orders with Severn Packaging, extending the project towards a complete Total Systems Approach.

The Results

Reliable Sealing on 125-Micron Bags

The SEVERN-DT consistently produced strong, repeatable seals on the customer’s 125-micron polyethylene bags, overcoming the sealing limitations experienced with the previous automatic bagging equipment.

This improved pack integrity and gave operators greater confidence that each finished bag would remain securely sealed throughout handling and transport.

Up to 25 Bags per Minute with Overprinting

The system achieved production speeds of up to 25 bags per minute while overprinting variable product information directly onto the bags. This provided a significant productivity improvement without compromising print or seal quality.

Lower Bag Waste with Next Bag Out Printing

Next Bag Out printing significantly reduced the number of bags wasted during print setup and product changeovers. The correct print was applied to the next available bag, reducing purge bags and helping lower material costs.

Shorter Changeovers

The compact tabletop format simplified operator access and reduced the time required to change products, labels and bag sizes. Faster changeovers improved machine availability and made the system better suited to short and medium production runs.

Compact Industrial Performance

The SEVERN-DT delivered industrial sealing and printing performance from a compact tabletop footprint, helping the customer improve production efficiency without sacrificing valuable floor space.

Key Project Benefits

• Reliable sealing of 125-micron polyethylene bags.
• Up to 25 bags per minute with overprinting.
• Reduced bag waste through Next Bag Out printing.
• Shorter product and label changeovers.
• Compact tabletop footprint.
• Improved pack integrity and consistency.
• Installation, commissioning and training by Severn Packaging.
• Label software included.
• 12-month parts and labour warranty.
• Print consumables and ongoing support supplied by Severn Packaging.
• First Severn Packaging bag orders now being placed.

Customer Comment

“Our previous automatic bagging equipment struggled to achieve consistent seals on the thicker bags required for our pump diaphragms. Since installing the SEVERN-DT, sealing performance has been far more reliable, even on 125-micron material. The Next Bag Out printing has also reduced bag waste, and the compact design has made product changeovers much quicker. The installation and training from Severn Packaging were handled professionally and the machine has integrated well into our production process.”

Project Engineer
UK Pump Diaphragm Manufacturer

Severn Packaging Comment

“This project shows why the correct automatic bagging machine must be matched to the application. The customer already had automated bagging equipment, but it was not consistently sealing the heavier 125-micron bags required for its pump diaphragms. By testing the application before installation, we were able to demonstrate the SEVERN-DT’s sealing capability, printing performance and compact design. The system is now running at up to 25 bags per minute with overprinting, while Next Bag Out printing has reduced waste and the tabletop format has shortened changeovers. We continue to support the customer with consumables and technical service, and they are now placing their first bag orders with Severn Packaging as the relationship develops towards our Total Systems Approach.”

Lee Williams
Sales Director, Severn Packaging

A Flexible Automatic Bagging Solution for Thick Materials

The SEVERN-DT is designed for manufacturers that need reliable bag opening, printing and sealing within a compact production footprint. Its ability to process heavier-gauge polyethylene bags makes it suitable for demanding industrial products where seal integrity is essential.

Severn Packaging supports the complete lifecycle of each system, including application testing, installation, training, print consumables, packaging materials, warranty cover and ongoing technical support.