Hot Runner Cavity Balance Software

Intelligent Imbalance Correction

CAV-BAL® CORRECTION ENGINE

Cav-Bal® is specialist software developed to scientifically calculate the hot runner tip adjustments required to balance cavities.

 

Cavity Balance Injection Moulding

What Is Cav-Bal®?

Cav-Bal® is the proprietary, paid Correction Engine within the free SIM Workbench® software platform. Developed by Moulding Optimisation Ltd, it calculates suggested hot-runner tip-temperature corrections for multi-cavity injection moulds. It can be used during mould qualification, process validation and troubleshooting to improve cavity filling and establish more stable production conditions.

SIM Workbench® can be downloaded and used free of charge for Scientific Injection Moulding studies, cavity-balance measurement, analysis, graphing and reporting. A Cav-Bal® licence is only required for the proprietary correction calculations.

What Cav-Bal® Does

Cav-Bal® analyses short-shot cavity weight data and calculates:

  • Required hot runner tip temperature corrections

  • Cavity-to-cavity imbalance percentage

  • The optimum ΔT for the balanced tip profile

Cav-Bal® can achieve a measurable <1% cavity imbalance on your hot runner moulds; results are limited only by the resolution of the hot runner controller.

“For anyone involved in process development, validation or process optimisation, Cav-Bal is an invaluable tool. It has become an essential part of my workflow, and I genuinely wouldn't attempt to balance a mould without it." 

Thomas Neale Managing Director of Thomas Neale Engineering Ltd.

"Cav-Bal will pay for itself in no time at all. Not only that, it provides excellent back up documentation that can be saved and printed out for your tools development records."

Simon Rooke Technical Director of Plast-Assist Ltd.

Try Cav-Bal® in SIM Workbench®

Download the free SIM Workbench® platform and use its Scientific Injection Moulding and cavity-balance tools without registration or payment.


When you are ready, start the optional 30-day Cav-Bal® trial from within SIM Workbench®. After the trial, a paid licence is required only for the proprietary Cav-Bal® correction calculations.
DOWNLOAD SIM WORKBENCH® FREE

How It Works

  1. Conduct a structured short-shot study.

  2. Input cavity weight data into Cav-Bal®.

  3. The software calculates required tip temperature settings

Key Features

  • Integrated into the free SIM Workbench® Windows application

  • No in-cavity sensors required

  • Designed specifically for hot runner cavity balancing

  • Uses proprietary balancing algorithm based on DoE

  • Simple operator interface

  • Fast implementation during trials

  • SIM Workbench® includes a free Capability Study module for calculating Ppk and Cpk
  • SIM Workbench® includes a free Design of Experiments module with What-If Analyser
  • Cav-Bal® study files remain accessible through the free SIM Workbench® platform

Why Cavity Balance Matters

Unbalanced moulds can result in:

  • Dimensional variation

  • Cosmetic differences between cavities

  • Uneven packing

  • Gate freeze inconsistency

  • Increased scrap

  • Extended mould trials

  • Ongoing “tuning” during production

Traditional tip tuning is often iterative and experience-based.

Cav-Bal® converts cavity weight data into calculated adjustments using a structured Design of Experiments methodology — removing guesswork and reducing trial time.

Where Cav-Bal® Is Used

Cav-Bal® is suitable for:

  • Initial mould qualification

  • Scientific Injection Moulding studies

  • Medical validation (IQ / OQ / PQ support)

  • Routine maintenance re-balance

  • Troubleshooting cosmetic or dimensional variation

  • High cavity count hot runner systems

It is particularly effective on:

  • Valve-gated hot runners

  • Multi-cavity tools (from 2 to 64 cavities)

  • Engineering polymers

  • Medical and high-tolerance applications

 

The Engineering Philosophy Behind Cav-Bal®

Cav-Bal® was developed from real-world injection moulding experience to reduce the time it takes to balance cavities on multi cavity hot runner moulds.

It does not replace scientific injection moulding although data collection is identical to the traditional Cavity Balance Study. It takes that data and gives the Engineer the exact hot runner tip settings to use, enabling the best possible imbalance, with the best possible ΔT, in the shortest possible time.

Cav-Bal® integrates naturally into a structured SIM approach and supports validation-driven environments.

Enquire About Cav-Bal®

If you are running multi-cavity hot runner tools and want to do it better, Cav-Bal® provides a structured, engineering-driven solution. You can download the software directly without registering and start your free 30 day trial with zero obligation from within the FREE SIM Workbench® software. 

Try Cav-Bal® in SIM Workbench®

Download the free SIM Workbench® platform and use its Scientific Injection Moulding and cavity-balance tools without registration or payment.


When you are ready, start the optional 30-day Cav-Bal® trial from within SIM Workbench®. After the trial, a paid licence is required only for the proprietary Cav-Bal® correction calculations.
DOWNLOAD SIM WORKBENCH® FREE