Vial Dimensional Controls


Checking the quality of the glass forming process is crucial to reduce rejects and keep the dimensions of glass containers and their cosmetic appearance within the tight tolerances requested by pharmaceutical companies.

The automatic camera inspection is a primary technique to ensure optimal setting-up of the machine and monitoring the efficiency of the process: this explains why pharmaceutical companies consider it a fundamental requirement. Thanks to our deeply rooted connection with the pharma industry, we develop and manufacture control systems satisfying the most demanding requirements.

Dimensional Controls

Our dimensional control systems perform 100% measuring of all the dimensions of a glass container, providing valuable data on the machine’s performance efficiency and processing to the operator.

Lines can be equipped with one camera or multiple cameras depending on the number of exits on the machine, and are positioned to inspect the mouth and shoulder areas of vials and cartridges. For syringes, different cameras are designed to inspect the cone and the flange.

The post-forming line features electromechanical gauges designed to measure the overall length of the container, the concavity of the bottom – for vials – and the flange thickness for syringes. Additional cameras can be added to check the inner diameter of the mouth and cone.

Vial dimensional controls:

  • Neck, collar and body diameter
  • Collar, neck and body height
  • Shoulder, collar angles
  • Neck axiality, mouth planarity
  • Total length and bottom concavity through electro-mechanical gauge or dedicated camera controls (no Glass-to-Metal version)

Syringe dimensional controls:

  • Cone and shoulder diameters, angles and height
  • Flange profile, thickness and planarity
  • Body diameter
  • Cone planarity and perpendicolarity
  • Cone Inner Diameter
  • Electro mechanical gauge for total length measurement

Cartridge dimensional controls:

  • Neck, collar and body diameter
  • Collar, neck and body height
  • Shoulder, collar angles
  • Neck axiality, mouth planarity, neck axiality
  • Inner bottom diameter
  • Electro mechanical gauge for total length measurement

Ampoule dimensional controls:

  • Stem control
  • Electro mechanical gauge for the total length and bottom concavity measurement


  • Control of all dimensions
  • Customizable quality level
  • Automatic rejection of defective products
  • Digitally stored measurements
  • Statistical analysis of each control
  • Graphic display of each parameter
  • Real-time production data on HMI
  • Automatic calibration system
  • Possibility to set recipes

Cosmetic controls

Stevanato Group systems allow for detecting cosmetic defects based on customizable quality levels. The cosmetic inspection systems are installed after the annealing section and ensure 100% cosmetic camera inspection.

Multiple eyes to ensure top quality

Our inline cosmetic controls, installed on the conveyor line from the annealing oven to the packing unit, accurately inspect each part of the container. They detect the most critical defects, including contamination, scratches, deformations, bubbles, pressure marks, airlines, chips and cracks.

Different configurations are available based on the container and customer requirements, with the possibility to install up to 9 cameras for a 360° cosmetic inspection of glass containers

Vial cosmetic controls:

  • Sealing surface area
  • Collar area
  • Lower Collar area
  • Neck area
  • Shoulder area
  • Body area
  • Bottom area

Syringe cosmetic controls:

  • Cone
  • Shoulder
  • Body
  • Flange
  • Radius body/flange
  • Internal Cone
  • Flange shape
  • Flange surface

Cartridge cosmetic controls:

  • Body area
  • Shoulder area
  • Rim + Neck area
  • Mouth area
  • Glazing

Ampoule cosmetic controls:

  • Printing


  • Multiple areas of inspection
  • Customizable quality level
  • Automatic rejection of defective products
  • Statistical analysis of each parameter
  • Digitally stored measurements
  • Real-time production data on HMI
  • Combination of linear-scan cameras and matrix-scan cameras
  • Automatic sampling system (camera challange)
  • Data and graphics shown in real time
  • Interface with SCADA systems
  • Possibility to set recipes

Highly performance off-line inspection equipment

The pharmaceutical industry is demanding extreme cosmetic quality of the containers as scratches and fractures can cause problems during downstream processes. Automatic inspection systems can guarantee the effectiveness and reliability of controls.

To meet the converting companies requirements, Stevanato Group has designed EVA, an off-line machine capable of processing vials coming from multiple lines and inspecting them at high speed.

EVA is equipped with a high-performance camera inspection system that detects cosmetic defects along the entire surface of the vials (body, shoulder, neck, collar, flange surface, bottom side), such as cracks, scratches, airlines, bubbles, dirt marks, etc.


  • Thanks to its high speed – up to 12,000 pieces per hour – it can process the output of several vial forming machines simultaneously
  • The machine is extremely flexible and can cover the full range of standard vials
  • The containers can be loaded on trays or on a conveyor. Unloading can occur either on trays or directly on a conveyor
  • The machine is manufactured with FDA-approved materials and components and is therefore suitable for operating in a pharmaceutical environment
  • The machine can be equipped with one additional station for the dimensional inspection