PreWatcher Offline

The new standard for the quality control of opaque and transparent preforms! The system offers a high-speed, comprehensive inspection, short conversion time and easy further processing.

PreWatcher Offline

The new standard for the quality control of opaque and transparent preforms! The system offers a high-speed, comprehensive inspection, short conversion time and easy further processing.

The all-rounder for your preform quality assurance

Whether transparent or opaque, big or small - with its 18 cameras, the system can handle any preform. It guarantees full product safety thanks to a 100% inspection without any blind areas. In addition, the system is quickly and effortlessly adjustable to your preform portfolio. This leads to huge savings in time and money when converting to new products. Thanks to its form fit star wheel separation, the system precisely separates and positions the preforms. Overall, the PreWatcher Offline is the optimal solution for your preform quality control due to several options for targeted ejection and an inspection performance of up to 84,000 preforms per hour.

The preform inspection system can be implemented in your production in different ways: on the one hand, it can used as an offline system to quickly re-sort preforms of your retained production. On the other hand, thanks to its linear handling system, the PreWatcher Offline can also be integrated inline directly behind the injection molding machine.

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High-speed 100% preform inspection

At a glance

Key features that make the PreWatcher Offline unique

Full product safety

100% full control without blind areas

Star wheel separation

Highly precise separation and positioning of preforms

Second ejector

Easy collection of sample preforms

For any kind of preform

Quality assurance of your whole product range

Extensive statistics

In-depth insights into your production quality

Space-saving design

Smooth integration on 3 m² – inline and offline

Inspection criteria of the PreWatcher Offline

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Geometry / body

Length, shape, diameter
Length of the injection gate
Unmelts
Bubbles and burners
Impurities (also oil marks)

Cavity number reading

Sorting based on defined cavity numbers
Cavity-correlated statistics

Color

Color and intensity deviations (ΔL *, Δa *, Δb *)
UV measurement (presence of UV blocker)
IR measurement (presence of barrier material)

Mouth

Diameter and ovality
Long shots and short shots
Scratches and notches in the area of the sealing surface
Defect at neck support ring

Thread

Contamination
Thread dimensions
Neck support ring defects

Injection point

Wells
Holes
Contaminations in the area of the injection gate

Do you want to learn more about the PreWatcher Offline?

Reach out to us for detailed information.

Overall production control

The pre-installed and customer-specific inspection software ensures the necessary process safety and reliability in everyday production. Thanks to the extensive user management, each user can only make authorized adjustments. Furthermore, cavity-specific inspection results and trends are issued which can be used for production optimization and control.

This collected quality data also serves as the basis for comprehensive inspection reports to be submitted to your customers. Consequently, you can provide in-depth information about the quality of your entire production down to individual batches or packaging units at any time.

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Downloads

Broschüre Preforms

FAQs about the PreWatcher Offline

The PreWatcher Offline inspects up to 84.000 objects per hour.
Geometry / body:
• Length, shape, diameter
• Length of the injection gate
• Unmelts
• Bubbles and burners
• Impurities (also oil marks)

Cavity number reading
• Sorting based on defined cavity numbers
• Cavity-correlated statistics

Color
• Color and intensity deviations (ΔL *, Δa *, Δb *)
• UV measurement (presence of UV blocker)
• IR measurement (presence of barrier material)

Mouth
• Diameter and ovality
• Long shots and short shots
• Scratches and notches in the area of the sealing surface
• Defect at neck support ring

Injection gate
• Hollows, holes
• Contaminations in the area of the injection point

Thread
• Contamination, thread dimensions
• Neck support ring defects
The preforms can be transparent, translucent or opaque. They should have a diameter of 10 – 50 mm (at the body) and a height of 40 – 160 mm. If these dimensions do not fit to your preforms, please contact us to find an individual solution for you.
The PreWatcher Offline has two ejection units. For example, one ejector can be used to reject faulty parts. The second one can be beneficial to segregate contaminated preforms and to exclude them from the recycling process.
INTRAVIS offers turnkey systems, worldwide support and training courses as well as comprehensive printed and digital information material for every single system. After the purchase of the system, INTRAVIS does not leave you alone with your new vision system. Moreover, service contracts offer worldwide support and service, even within 24 hours.

Contact us and find the best solution

Are you ready for a 100% preform quality assurance? Do you have questions or do you need further information? We are looking forward to hearing from you.

Get in touch with us

PreWatcher Offline

PreWatcher Offline

The all-rounder for your preform quality assurance

At a glance

Full product safety

Star wheel separation

Second ejector

For any kind of preform

Extensive statistics

Space-saving design

Inspection criteria of the PreWatcher Offline

Geometry / body

Cavity number reading

Color

Mouth

Thread

Injection point

Do you want to learn more about the PreWatcher Offline?

Overall production control

Downloads

Broschüre Preforms

Brochure Preforms

FAQs about the PreWatcher Offline

Which production speed does the system support?

Which inspection criteria are covered by the PreWatcher Offline?

Are there any special requirements regarding the preform to be inspected?

In which case are two ejection units beneficial?

Am I able to operate the PreWatcher Offline on my own?

Contact us and find the best solution