High-accuracy leak detection for consistent, reliable container quality

Leaks and micro-defects in plastic packaging lead to product loss, recalls, contamination risks, and rejected batches. Manual checks are slow and unreliable, especially at high production speeds.

Delta Engineering’s leak testing systems provide precise, automated quality control for detecting defects from small pinholes to gate-area microcracks. With pressure decay, high-voltage, and integrated top-load inspection options, we ensure stable, compliant, and traceable production.

Pressure decay leak testing

Our pressure-decay leak testers cover every speed range: start–stop units for smaller lines, on-the-fly systems up to 20,000 BPH, and high-capacity rotary testers. The result? Fewer rejects and improved overall equipment effectiveness (OEE).

High-voltage leak testing

Our high-voltage leak testers detect microcracks in the gate area of PET bottles at high speeds. They offer exceptional sensitivity beyond the limits of pressure decay testing, enabling the detection of micron-level leaks. This is becoming increasingly important with the growing use of PCR materials.
THE BEST CHOICE FOR ACCURATE LEAK TESTING OF PLASTIC PACKAGING

Accuracy

Identification of leaks and micro-defects with reliable, repeatable precision.

Quality

Stable inspection ensures product quality remains within the required process window.

Reliability

The leak testers are engineered for minimal downtime and maximum uptime.

Integration

Engineered to fit the customer’s line, conveyors, and quality-control workflow.

WHY DELTA ENGINEERING?

Reliable testing performance across all speeds and bottle formats

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 automated leak testing

Case study

From transporting empty plastic jars to fully integrated production

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Case study

Sustainable blow molding through smart downstream automation

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FAQ

The top 5 questions regarding
automated leak testing for rigid plastic packaging

What types of leaks can Delta Engineering’s automated systems detect?

Our pressure decay, high-voltage, and integrated inspection systems detect everything from small pinholes to microcracks in the gate area, blocked bores, and deformation issues.

How do I choose between pressure decay and high-voltage leak testing?
Can leak testing keep up with high-speed production lines?
How does leak testing improve Overall Equipment Effectiveness (OEE)?
How does leak testing affect my product cost?

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