Step change in moulding

Injection moulding quality, production and process control by cavity pressure measurement


Cavity Eye consists of pressure sensors, data acquisition and control instrument with software that helps to analyse and control the injection moulding process by cavity pressure measurement.

We focus on injection moulding technology, R&D and real innovation, not for marketing.

Thanks for visiting our website. Study our products and services and free feel to contact us and start a project together.


Injection moulding is a complex process. The effective production depends on hundreds and hundreds of parameters, on the mould, on the material and on the employee too. It is the reason that sometimes very difficult to find the best parameter combination of moulding or find out what is the root problem of failure production and the high scrap ratio.

Injection moulding is a blind flying if one makes decisions without enough information. The Cavity Eye is an extra information channel between the cavities of the mould and the user.

The setter person can see what happens inside of the cavities and the machine set up can be optimized. It is easy to make the fine tune of the parameters and the instrument can optimize them online without human failure.

Benefits of Cavity Eye:

  • Market leader innovative technology;
  • Compact hardware: the system is integrated into a smart industrial plug;
  • Real time process analysis;
  • Free software update;
  • Online support;
  • Technical support, consulting and trainings;
  • Easiest way of sensor installation;
  • Best value/price ratio on the market;
  • You can buy directly from the producer;
Cavity Eye K Brochures
SMP8 brochure (English)
SMC brochure (English)
Cavity Eye foldout (English)

Mould Equipment


Best solution for mould instrumentation

Sensor Fixing Plates

Pressure Sensors (PC15,PC26)

1 kN, up to 40 kN

Mould Plug with Memory

Pressure sensors

Cavity Eye developed waterproof (IP67) and shock resistant pressure sensors. The company provides sensors in different load range (1….40kN) and different body size (with 15 and 26 mm diameter).

Cavity Eye is using only indirect sensors. According to our experience, the indirect measurement is more accurate than the direct ones and in the first case there is no maintenance of the sensors during the mould’s lifetime. Thanks for the sensor geometry the installation is easier than any time before.

In 90% of the moulds, the sensors are installed to the clamping plate. The ejector pin and an extra transfer pin press the sensor tip (measuring surface). If there is no ejector pin, ones can use static pin for the measurement, so 100% of the moulds can be prepared for Cavity Eye instrumentation.

Memory in mould (MiM)

The MPM 8 central mould plug collects the wires of the pressure sensors. It can control 8 or 32sensors in one time. If more sensors needed (multicavity moulds) more plugs can be used as well. Thanks for the memory modul the main details of the mould can be saved in the mould plug (reference curves, tolerances, switch pressure, sensor codes, pin diameters, cavity ID numbers, machine parameters etc.) The production restart and the mould transfer become extremely easy due to this technology. The MiM is a base of a real digital factory and the setters do not have to look for the process sheets. All necessary information moves with the mould.

Select the optimal sensor for your mould according to the TECHNICAL DETAILS

Sensor Type Max. Load [N] Max. Mould Temperature [°C] Diameter [mm] Height [mm] Max. Ejector Diameter / Area [mm] / [mm2]
PC15-1-AA 1.000 90 15 8 3 / 7
PC15-1-AA-MT 1.000 150 15 8 3 / 7
PC15-1-AA-HT 1.000 200 15 8 3 / 7
PC15-5-AA 5.000 90 15 8 6 / 28
PC15-5-AA-MT 5.000 150 15 8 6 / 28
PC15-5-AA-HT 5.000 200 15 8 6 / 28
PC26-20-AA 20.000 90 26 12 12 / 113
PC26-20-AA-MT 20.000 150 26 12 12 / 113
PC26-20-AA-HT 20.000 200 26 12 12 / 113
PC26-40-AA 40.000 90 26 12 20 / 314
PC26-40-AA-MT 40.000 150 26 12 20 / 314
PC26-40-AA-HT 40.000 200 26 12 20 / 314
Product Data Sheets
PC15 and PC26 Pressure sensors
MPM (Mould Plug with Memory)
2D Technical Drawings of parts
Metric Imperial
PC15 Pressure Sensor
PC26 Pressure Sensor
PC15 Pressure Sensor with O-ring
PC26 Pressure Sensor with O-ring
PC15 Pressure Sensor Front Plate
PC15 Pressure Sensor Back Plate
PC26 Pressure Sensor Front Plate
PC26 Pressure Sensor Back Plate
MPM8 (Mould Plug with Memory 8) with Standard Spacer
MPM8 (Mould Plug with Memory 8) with Offset Spacer
MPM32 (Mould Plug with Memory 32) with Standard Spacer
3D (.step) files of standard parts
PC15 Pressure Sensor
PC26 Pressure Sensor
PC15 Pressure Sensor with O-ring
PC26 Pressure Sensor with O-ring
PC15 Pressure Sensor Front Plate
PC15 Pressure Sensor Back Plate
PC26 Pressure Sensor Front Plate
PC26 Pressure Sensor Back Plate
MPM8 (Mould Plug with Memory 8) with Standard Spacer
MPM8 (Mould Plug with Memory 8) with Offset Spacer
MPM32 (Mould Plug with Memory 32) with Standard Spacer
Sample draws and pictures about sensor installation
Metric Imperial
PC15 Sensor installation in clamping plate (rear)
PC15 Sensor installation in clamping plate (front)
PC26 Sensor installation in clamping plate (rear)
PC26 Sensor installation in clamping plate (front)
PC15 Sensor pocket layout (front)
PC15 Sensor pocket layout (rear)
PC15 Sensor installation in Cavity and Clamping plate (rear)
Sample sensor installation layout (front)
Sample sensor installation layout (rear)
Sample 3D pictures about installation

Measuring Equipment

Best solution for measuring cavity pressure, control the molding machine and lot more.

Smart Measuring Plug (SMP)

Smart Control Plug (SCP)

Smart Control Socket (SCS)

Cavity Eye Base Unit


The new generation of Cavity Eye system is a simple portable industrial plug with an integrated ARM based measuring system. It provides the easiest way of cavity pressure measurement of multi-cavity-moulds. The Smart Measuring Plug can be connected to a laptop by a simple network wire and the measurement can be run up to 8 or 32 pressure sensors in one time (it depends on the type of SMP). The free Cavity Eye measuring software can be downloaded from the Cavity Eye website (www.cavityeye.com/downloads). In case you need a measuring system for mould transfer, easy production start up or failure analysis, the Smart Measuring Plug is the best solution on the market with the best value/price ratio. 2 or more SMP8 can be used parallel so the maximum number of the sensors can be unlimited in a mould. If you want 0 ppm scrap ratio, online and real time process analysis and machine control, the Smart Moulding Control system is the best choice in the market.

Smart Measuring Plug
Plug type and size Harting HAN 16A Harting HAN 16B
Dimensions LxWxH 110x36x70 142x43x80
Number of channels 8 32
Resolution 32 bit 32 bit
Sampling rate 200…2000 Hz 200…2000 Hz
Operation temperature 10…85 °C 10…85 °C
Power supply 6…9 V (7,5 V standard) 6…9 V (7,5 V standard)
Measuring cable length 5…15 m 5…15 m
Control software Cavity Eye Base 25.x Cavity Eye Base 25.x
Product Data Sheets
Smart Measuring Plug
Smart Control Plug
Smart Control Socket
2D Technical drawings of Measuring Equipments
Metric Imperial
3D (.step) files of Measuring Equipments



The next generation of cavity pressure control for 0 ppm scrap, on-line quality and process control for 24 hours and 7 days


The Smart Moulding Control is an online and real-time injection moulding quality and process control system, including:

  • (SMP) Smart Measuring Plug;
  • (MSC) Monitor, Switch, Computer;
  • (SCP) Smart Control Plug

The Smart Measuring Plug provides the measurement and based on the pressure curve, the control signal is sent to the SCP which communicates with the injection moulding machine and controls the selector, the robot the transfer (switch over) or stops the machine by 24 V digital signals. One, two or more SMP plug can be connected to the router so the maximum number of the sensors are unlimited. The system is fixed to the injection moulding machine.



Our support is the pillar of your success

Moulding, training, consulting and cavity pressure control


Cavity Eye provides services to guarantee the success. We believe that the cavity pressure application is easy, but the new customers have to understand and study the basic rules of this technology.

The best way is to make the first projects together, from design to DOE. If you need more training, we train injection moulding from beginners to experts.


First project – let’s start together

3 days service in plant. The preparation of the project is online. We consult about the goal of the project, former production failures and statistics, instrumentation, sensor positions, design, modification and manufacturing

After the online preparation we visit the production plant of the customers and install the sensors together, then test the mould in toolshop. After the mould clamp, we optimize the process by cavity pressure.

A Cavity Eye engineer gives a training of “curve reading” and DOE analysis based on cavity pressure. The software and other applications also the part of the training. After the training, one-two days production will be analyzed. Stability and production restart also based on cavity pressure. During the first project, the Customer gets enough experience to handle the second one on his own.

On-line support

Design and design review

The designers of the Cavity Eye can modify and make review of the 3D designs after signing the NDA. The review is free of charge and takes 1…3 days, the design has service charge.

Remote Control

If the customer has any kind of difficulties of the application of Cavity Eye, after invitation we can connect to the Cavity Eye instrument and give online support (mould analysis, production analysis, statistical analysis, software update etc). Thanks to this online service, you do not have to wait for a service engineer and the problem can be solved in a day.

Personal support, Consulting

A Cavity Eye service engineer visits the production plant of the customer to help personally in the following tasks:

  • Sensor installation, and dry test in the tool shop (mould preparation)

  • Instrument installation

  • Production and failure analysis by DOE


Basic training of injection moulding (10-15 days)

This training is recommended to beginners who has no or has minimal experiences in injection moulding. The length of the training can be 10 or 15 days, depending on the knowledge of the participants.The goal of the training is to study and practice the steps of mould changing. After the training they will be able to clamp the mould and prepare the machine for productionm, but they will not be able to start the production alone.

After the training they need a mentor for a month to get more experience and study the local rules. The training is organized at the customer’s plant by two trainers.

The training is organized at the customer’s plant by two trainers.

Intermediate training for machine setters and technologies (5 days)

This five-day-training focuses for the theoretical background of injection moulding, but all the theory can be verified during the training in practice too (60% theory and 40% practice). The program is focusing on:

  • Material properties and material preparation

  • Material tests and measurement (MFI, moisture, mechanical properties…)

  • Parameter set (material temp. mould temp, speed, pressure…)

  • Mould trial (how to prepare a mould for the first test, first shot)

  • Process analysis, DOE (to determine the optimal machine parameters and define the mould failures, necessary modifications)

  • Cavity pressure analysis

  • Production failure analysis (understand, reproduce, modify, eliminate)

The training can be organized at the customer’s plant or in the research centre.

Cavity Eye training (3 days)

This training is for customers who need complex program for study the application of the Cavity Eye system.

  • Mould design and sensor installation

  • Measuring instrument installation

  • Software application

  • Machine set up and fine tune by cavity pressure



In case of any question do not hesitate to contact us


Attila SZŰCS Email: attila.szucs@cavityeye.com


Éva DOBÓVÁRI Tel: +36-30/703-6058 Email: eva.dobovari@cavityeye.com


András SZŰCS PhD Tel: +36-30/313-8675 Email: andras.szucs@cavityeye.com

Company Data

Business Name: Cavity Eye Hungary Kft. Business Address: Szellő utca 1., Kecskemét, Hungary H-6000 VAT Number: HU-23921292-2-04 Email: info@cavityeye.com Foundation: 2012 Area of business: Cavity pressure measurement solutions for plastic industries, services and training for the plastic industries Target groups: Automotive industries (plastic processing), Plastic product manufacturing companies (precision engineering), Other industries

Cavity Eye