The modular full‑bottle inspection machine Promita‑P Mod is an inspection device designed to meet the requirements of filling production lines, enabling more efficient, accurate and controllable production. It is suitable for on‑line inspection of filled bottles after filling on PET bottle production lines. It reliably inspects product liquid levels, bottle caps, inkjet codes and other features, and precisely rejects defective products to ensure product quality. In addition, it can be combined with a filling management system to realize traceability of defective products on the production line, conduct real‑time production monitoring, and reduce production losses.
Unlike the integrated full‑bottle inspection machine Promita‑P One, Promita‑P Mod offers higher flexibility. Manufacturers can freely configure different inspection modules according to their actual testing requirements. It can be easily integrated into existing production lines with a smaller footprint.
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The Promita‑P Mod full‑bottle inspection machine provides inspection functions including liquid level, bottle cap and inkjet code. Each inspection function can be equipped separately, offering stronger personalized customization capabilities. It can deliver suitable technical solutions matching existing production lines with high compatibility.
Corresponding control centers can be selected for production lines of different speeds, with a maximum inspection efficiency of 72 000BPH.
Fill Level Inspecion
Cap Inspection
Code Presence
Filler Management System
Top Logo Inspection
Metal filling needle inspection
Cap inspection mainly checks for missing caps, high tilted caps, broken tamper rings and other defects. Inspection is split into two stages. The first stage, the SCI cap inspection module, is installed upstream of the filler to stop defective caps such as deformed, irregular and dirty caps from entering the production line. The second stage, the ACI 360° tamper ring inspection module, is mounted downstream of the filler to verify any abnormalities on caps after filling.
The SCI cap inspection module utilises one industrial colour camera to inspect cap appearance. Fitted onto the vacuum suction belt before the filler, it eliminates interference from cap slippage during conveyance. Defective items are ejected by a downstream air nozzle rejector after inspection.
The ACI 360° tamper ring inspection module is installed downstream of the filler. It mainly detects defects after capping and screwing, including high tilted caps, missing, deformed or broken tamper rings. The detection accuracy for high tilted caps reaches ±1 mm.
The ACI module features an elaborate optical path design. It captures images by dividing the cap’s 360° circumference into four 90° segments. Combined with Xispek’s high-efficiency image processing algorithms, it reliably identifies defects at any angle around the cap, ensuring every faulty cap is detected precisely.
It mainly checks the presence of coding marks and is compatible with all types of coders, including inkjet and laser coding equipment.
The code inspection unit consists of one high-speed industrial camera and maintenance-free LED light sources. Based on the principle that laser coding generates a local temperature far higher than ambient temperature at the moment of marking on caps or bottle bodies, high-precision temperature sensors measure the instantaneous temperature after coding to verify whether codes are printed in the designated area. It accurately identifies defects such as missing lines, missing characters and duplicate codes. The detection accuracy reaches 99.9% for fully missing codes or codes missing more than 70% of their area.
Combining the inspection system with the real-time tracking system links statistical inspection data to the positions of filling valves inside the filler and capping heads. Each filling head and other equipment requiring traceability is fitted with a photoelectric sensor. Triggering of the sensor creates an independent monitoring channel for corresponding products, which closes upon product rejection to achieve full-lifecycle tracking.
If a specific filling valve repeatedly delivers underfilled products or a certain capping head continuously produces tilted caps, the system automatically alerts operators for targeted maintenance. This facilitates predictive maintenance at the plant, cuts downtime and improves production stability.
Moreover, the filling management system enables online pre-inspection against bottle bursting to block defective bottles with hidden cracks, preventing high-pressure breakage during filling, machine jamming caused by broken glass and product contamination.
Custom sampling is also supported with flexible configurable sampling rules: for example, extracting 10 sample bottles from a designated filling valve or bulk sampling from all working stations. The system runs sampling automatically after simple parameter entry, delivering high efficiency and greatly improving overall product quality.
Filling Management System Features:
Equipped with patented TrackML® tracking technology
Separate statistics and summary for each filling head (capping head)
Active diagnosis of equipment issues
Sampling function available
Itemized statistics by machine position
Graphic‑text report function to efficiently assist manufacturers in managing production data
It mainly inspects missing cap-top logos and defective caps with wrong-colored patterns. Constructed of 304 stainless steel, it complies with hygienic production requirements.
The cap logo inspection unit uses one color industrial camera plus ring LED lighting to reject faulty caps via color and pattern comparison. Cap roundness measurement enables damage identification as an extra inspection safeguard.
Optional extension for reading and verifying QR codes and barcodes is available.
Inspects the resence of metal filling needles and other metal contaminants in bottle bottoms.
Implemented using high-sensitivity metal inspectors installed on both sides of the conveyor belt. Integrated with flexible rejection systems to uniformly collect and process defective.
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