Consistent, leak-proof hole punching

In blow-molded bottles and containers, punched openings must meet strict dimensional tolerances to ensure proper dispensing, handle integration, or downstream assembly. Manual or poorly aligned punching can cause burrs, leaks, deformation, or unstable product quality.

Delta Engineering’s automated punching units deliver accurate, repeatable hole formation with controlled cutting forces, stable clamping, and fast changeovers. Our punching units ensure reliable performance on rigid plastic bottles and containers of varying shapes and wall thicknesses.

Punching units

Our punching systems for drums create clean, accurately positioned holes without the risk of leaks. Dedicated tooling and dies ensure accurate hole angles, eliminate drilling scrap, and enable fast changeovers, even with multiple hole patterns.
THE BEST CHOICE FOR CONSISTENT PUNCHING OF PLASTIC PACKAGING

Consistency

Punching is performed at a consistent angle, as opposed to an operator doing this manually.

Cleanliness

Punching creates no drilling scrap, only clean cut-outs collected for disposal.

Speed

Fast, recipe-driven changeovers and multiple-hole patterns for high-output lines.

Integration

Works standalone or in-line with quality centers and full downstream automation.

Why delta engineering?

Reliable punching performance for bottles, containers, and L-ring drums

1.

Single point of responsibility

2.

Broad experience

3.

Worry-free operation

4.

Fast payback thanks to improved efficiency

SPECIALIST IN TURNKEY PROJECTS FOR DOWNSTREAM SOLUTIONS

Total solution partner for the plastic packaging industry

Design

Engineered for your production reality

Our engineering teams design every system in-house, combining mechanical, electrical and software expertise. We create layouts that fit the available floor space, product range and speed requirements, ensuring stable flow, safe operation and seamless integration with existing equipment.

Manufacturing

Built in-house for lasting performance

All machines are manufactured in our own facilities for full quality control. From precision machining to assembly and testing, every step is handled in-house. This guarantees long-term reliability, consistent output and equipment that meets demanding industrial standards.

Installation

Smooth installation, minimal downtime

Our specialists install and commission our equipment efficiently, with minimal disruption to the customer’s production. We fine-tune settings on site, integrate controls, and train operators so automation runs safely, smoothly, and at full performance from day one.

Service

Reliable service, global support

Our multilingual service teams provide remote assistance, preventive maintenance and fast spare-parts delivery. Whether it’s troubleshooting, upgrades, or audits, we keep automation systems running reliably and ensure maximum uptime worldwide.

Case studies

Insights and cases on punching units

Case study

From transporting empty plastic jars to fully integrated production

Read More

Case study

Sustainable blow molding through smart downstream automation

Read More

FAQ

The top 5 questions regarding
punching of rigid plastic packaging

Why use automated punching instead of manual drilling for L-ring drums?

Manual drilling often creates angled cuts that can pierce the drum wall, causing leaks and safety risks. Automated punching ensures perfect alignment and leak-proof holes for UN-certified L-ring drums.

Can Delta Engineering punching units handle multiple hole configurations?
How does automated punching reduce contamination and waste compared to drilling?
Can the punching units integrate with quality control systems?
What types of rigid plastic packaging can the punching systems process?

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