In the manufacturing of pharmaceutical isolators, pre-assembly validation is not a secondary step but a critical phase in the equipment’s lifecycle. At LITEK Pharma, as specialized manufacturers of containment and aseptic processing solutions, we know that effective design is not just about blueprints, it’s about adapting to the operator’s real-world environment.
That’s why we systematically implement the creation of full-scale (1:1) physical mock-ups. This functional model, built in wood, allows early validation of key aspects such as ergonomics, accessibility, visibility, and process logic. The goal is not just to verify the design but to anticipate deviations, mitigate risks, and ensure that each isolator is ready to operate under real conditions from day one.
What Is an Isolator Mock-Up?
A mock-up is a three-dimensional replica of the final isolator, built to exact dimensions using easily modifiable materials to allow on-site adjustments. At LITEK, we construct it in high-density wood, respecting all critical design measurements approved by the client.
Its main purpose is to serve as a validation platform for engineering, quality, and operations teams to:
- Simulate real tasks to be performed inside the isolator
- Validate operator reach to key areas
- Detect physical barriers, interferences, or blind spots
- Verify cleaning and disinfection feasibility under GMP regulations
- Assess the physical effort required for repetitive or delicate tasks
Ultimately, it’s an applied engineering tool that enables corrections, improvements, or adaptations before the isolator enters the manufacturing phase.
1. Initial Design Validated by the Client
The process starts with a detailed digital design developed in a CAD environment, which takes into account the client’s technical requirements (URS), process specifications, and applicable regulatory standards (ISO 14644, EU GMP Annex 1, etc.).
This initial design is reviewed jointly with the client’s technical team. Once conceptually validated, it becomes the basis for the mock-up fabrication.
This stage allows early detection of inconsistencies in process flow, redundancies, or poorly utilized areas, before proceeding with final model production.
2. Mock-Up Fabrication
At LITEK, we build the mock-up in-house with a high level of dimensional accuracy. Each mock-up includes all configurable elements of the isolator:
- Glove ports and transfer ports
- RTPs and transfer airlocks
- Internal trays, shelving, and worktables
- Simulated lighting, electrical and pneumatic outlets
- Cleaning systems (spray balls, WIP/SIP nozzles)
This replica allows us to evaluate the functional layout of each component and test their interaction with the operator. It also offers the flexibility to make immediate adjustments if deviations are detected during validation.
3. Active Involvement of the End User
A key part of this process is the direct involvement of the client’s operating team. During the mock-up validation sessions, the personnel who will use the isolator, whether from production, quality control, or maintenance, interact with the setup to simulate actual tasks.
This involvement allows for:
- Detecting ergonomic limitations based on user anthropometrics
- Validating the workflow sequence as it will be performed in the facility.
4. Full Process Simulation
Once the mock-up is built, we ask the client to provide materials equivalent or representative of their real process (containers, tools, raw materials, instruments).
If such items are not available, our team can produce wooden or plastic replicas to ensure the simulation is as realistic as possible.
This step enables:
- Reproducing actual workflows for loading and unloading
- Validating material flow and operational logic
- Measuring intervention times and ergonomic stress points
- Identifying critical areas for cleaning or maintenance
5. Application of the EER Protocol (Ergonomic and Risk Study)
During the mock-up phase, we apply an internal technical protocol called EER (Ergonomic and Risk Study), which includes:
- Dimensional verification of each component
- Assessment of the accessibility of gloves, trays, and services
Step-by-step simulation of each task in the process - Identification of ergonomic, microbiological, or mechanical risks
- Photographic documentation, measurements, and technical notes
- Documented modification proposals
This report is then reviewed by Engineering, Production, Quality, and Project Management departments before proceeding to the final manufacturing stage.
6. Issue Resolution and Design Improvement
If any interferences, poor access, or ergonomic risks are detected during validation, the LITEK technical team proposes solutions that meet the following criteria:
- Ergonomic adjustment without compromising process safety
- Compliance with GMP guidelines and hygienic design principles
- Minimal impact on the isolator’s overall architecture
- Direct implementation in the manufacturing phase
These decisions are discussed and validated with the client in real time, allowing the project to move forward without delays or unnecessary rework.
7. Mock-Up Duration and Key Objectives
The mock-up process typically takes place at our facilities over 2 to 3 business days, depending on the complexity of the equipment and the number of users involved in the validation.
The main objectives of this phase are:
- Confirming the technical design in a simulated environment
- Detecting and correcting errors before manufacturing
- Reducing risks during Factory Acceptance Tests (FAT) and Site Acceptance Tests (SAT)
- Improving the end user’s operational experience
- Shortening the plant commissioning timeline
- Building user confidence in operating the isolator
8. Option to Purchase the Mock-Up for Training Purposes
The isolator mock-up is a highly valuable training tool, offering a physical and functional representation of the isolator. For this reason, the possibility of purchasing the mock-up is considered so clients can keep it on-site for training their operators and building confidence in isolator use.
Pharmaceutical Isolator Manufacturing: Precision, Ergonomics, and Validation
At LITEK Pharma, we understand that an isolator is not just a physical barrier but a critical process system that must meet functional, regulatory, and operator-specific requirements. The creation of the mock-up is the tool that allows us to align these three pillars from the initial design phase.
Based on our project experience, this stage helps anticipate most of the deviations typically encountered during installation, facilitating more efficient manufacturing and stronger alignment between design and real-world use.
Looking to ensure ergonomics and efficiency in your next project? Get in touch with our technical team, we’ll help you validate it step by step.
