Introduction: Why Modernization Is Necessary

The transition from batch to continuous process operations is a critical step for modern industrial production. Batch processes, despite their historical reliability, are often inefficient and limited in scale. The EU Ecodesign directives and energy audits require ever-increasing efficiency and sustainability. Modernization of existing installations is not only a technical necessity, but also an economic obligation. By using modern components and control technologies, production capacity can be increased, energy consumption can be reduced, and maintenance costs can be lowered.

Existing System Assessment: What to Evaluate for a Retrofit

Before a retrofit is carried out, it is essential to thoroughly evaluate the current system. The following criteria must be investigated:

Modern Alternatives: Old versus New Technology

The transition from batch to continuous processes requires not only the replacement of process components, but also the modernization of the control technology. Below is a comparative table of old and modern solutions:

ROI Calculation: Why It Is Smart To Modernize

The return on investment of a retrofitted system is directly measurable. Below is an example of an ROI calculation based on realistic data:

Data:

• Annual energy consumption: 500.000 kWh
• Energy cost per kWh: €0,15
• Annual maintenance cost: €12.000
• Production time loss: 150 hours per year
• Hourly rate: €30
• Modernization cost: €15.000

Calculation:

1. Energy cost before: 500.000 × €0,15 = €75.000
2. Energy cost for modernization: 400.000 × €0,15 = €60.000
3. Reduction of energy cost: €15.000
4. Maintenance cost after modernization: €6.000
5. Reduction of maintenance cost: €6.000
6. Productivity loss after modernization: 75 hours
7. Reduction of production time loss: €2.250
8. Total annual saving: €23.250
9. ROI: €23.250 / €15.000 = 1,55 (55% rendement)

The investment is recouped within 1.55 years. It is clear that the modern solution is not only more reliable, but also provides a significant economic advantage.

Implementation Route Planning: A Phase-Bound Approach

To minimize production downtime, the retrofit must be carried out in phases. Below is an example of an implementation plan:

1. Phase: Analysis of the current system and preparation of a technical specification. Hour: 40
2. Rating: Evaluation of technical and economic advantages. Hour: 20
3. Procurement: Ordering components via UNITEC-D E-Catalog. Hour: 30
4. Installation: Installation of new components in a test environment. Hour: 100
5. Committee: Testing and optimization of the system. Hour: 50

By modernizing the system in phases, the company can continuously maintain production without major interruptions.

Technical Challenges: Problems and Solutions

Although the modernization from batch to continuous processes provides a clear advantage, there are also technical challenges that must be addressed:

• Compatibility: New components must be compatible with existing systems. This can be resolved by using standard components that comply with NEN and EN standards.
• Maintenance: New systems often require more specialized maintenance. This can be compensated by using components with a low MTBF (mean time between failure), such as REXROTH 4WE6 D62/EG24 N9K73L S0407.
• Training: Employees must be trained in the use of new control technologies. This can be done through internal training or external courses.

Useful Example: Before/After Scenario

A factory uses an old batch process with an output of 1.200 kg per hour and an energy consumption of 500.000 kWh per year. After modernization, the output is increased to 1.500 kg per hour, with an energy consumption of 400.000 kWh per year.

For:

• Output: 1.200 kg/hour
• Energy consumption: 500.000 kWh/year
• MTBF: 10.000 hours

• Output: 1.500 kg/hour (25% increase)
• Energy consumption: 400.000 kWh/year (20% reduction)
• MTBF: 15.000 hours (50% increase)

The increase in output and the reduction of energy consumption demonstrate the advantages of a modern solution.

Committee & Validation: Test procedures and Acceptance criteria

After installation, systems must be tested according to specific criteria:

• Electrical test: Measurement of current and voltage according to IEC 60034-1.
• Hydraulic test: Measurement of pressure and leakage according to EN 12941.
• Control process: Ensured correct operation of the process according to ISO 9001.
• Acceptatie: Alleen na volledige testen en documentatie wordt het systeem geaccepteerd.

Conclusion: Choose For Modernization

The transition from batch to continuous processes requires a thorough evaluation, a targeted implementation plan and good communication with technical suppliers. UNITEC-D provides the necessary components and support for a successful modernization. Choose for reliability, efficiency and full compliance with NEN, EN and ISO standards.

View our complete e-catalog for modern components and retrofit solutions

References

• EU Ecodesign Directive (2009/125/EC)
• IEC 60034-1:2014 - Rotating Electrical Machines
• EN 12941:2012 - Hydraulic Fluid Power - Valves
• ISO 9001:2015 - Quality Management Systems
• REXROTH Technical Manuals

Introduction: Why Modernization Is Necessary

The transition from batch processes to continuous operation is a critical step in modern industrial transition. This process increases efficiency, reduces energy consumption, and complies with stricter regulations such as EU Ecodesign and energy audits. In the Benelux divisions of UNITEC-D GmbH, we are facing a growing need for technical solutions that support this transition process and ensure that production remains continuous, reliable, and compliant.

Legacy System Assessment: What to Evaluate Before You Retrofit

Before starting a retrofit, it is essential to thoroughly analyze the current installation. The following criteria must be investigated:

Modern Alternatives: Old vs New Technology Compare

The REXROTH HED8OH2X/100K14S is a modern solution that both in terms of efficiency and in terms of reliability outperforms the older components. Below is a comparison:

ROI Calculation: A Realistic Payback Analysis

The ROI calculation is crucial for capex decisions. Below is an example of a reliable payback calculation:

• Energy savings: 30% reduced energy consumption leads to an annual saving of € 8.500.
• Downtime reduction: MTBF has increased from 5000 to 10000 hours, leading to a reduced number of stoppages from 12 to 6 times per year.
• Labor costs: Production time per batch has decreased from 18 hours to 12 hours, resulting in an annual saving of € 7.200.
• Installation costs: The costs for replacing the components amount to € 12.500.

With these data, the modernization results in a net annual saving of € 15.700. The payback period amounts to approximately 8 months.

Implementation Roadmap: A Distributed Approach

To minimize production during implementation, a steady approach is recommended:

1. Plan: Analyse the current installation and create a technical specific list of the components that need to be replaced.
2. Procurement: Kies componenten zoals de REXROTH HED8OH2X/100K14S via UNITEC-D E-Catalog.
3. Installation: Carry out the installation in alternating batches to support production.
4. Commissioning: Test de nieuwe componenten en controleer of ze voldoen aan de vereisten van EN ISO 9001.

Technical Challenges: Problems During Retrofit and How to Solve Them

Although retrofit provides a more efficient solution, technical challenges may arise:

• Compatibility: Ensure that the new components are compatible with existing systems. Use UNITEC-D E-Catalog for compatibility data.
• Installation times: Plan installation times during maintenance periods to minimize production.
• Training: Employee training for the new components is essential for reliable operation.
• Regelgeving: Zorg dat de nieuwe componenten voldoen aan NEN 3140 en EN ISO 13849-1.

Case Study: A Realistic Pre-And Post-Scenario

A production plant in Belgium has introduced the REXROTH HED8OH2X/100K14S into their batch process. Here are the advantages:

• Efficiency increase from 82% to 93%.
• MTBF from 5000 to 10000 hours.
• Energy consumption decreased by 30%.
• Downtime reduced from 12 to 6 times per year.

These improvements led to an annual saving of € 15.700, which gave a significant contribution to the factory's profit.

Commissioning & Validation: Testing Procedures, Acceptance Criteria

After installation, the new component must be checked for:

• Safety: According to EN ISO 13849-1.
• Efficiency: Measure the energy consumption and compare with the older component.
• Compatibility: Check if the new component works properly with existing systems.
• MTBF: Reliability test of the component based on the specific requirements of NEN 3140.

All tests must be fully documented and agreed upon with the requirements of the customer and the relevant standards.

Conclusion: Choose the UNITEC-D E-Catalog

The transition from batch processes to continuous operation requires technical expertise and reliable components. UNITEC-D GmbH provides both the replacement components and the modern solutions required for this modern transition. Choose the UNITEC-D E-Catalog for reliable and compliant solutions.

References: Documentation and Rules

• EU Ecodesign: Mandatory requirements for energy efficiency.
• NEN 3140: Guideline for safety in industrial processes.
• EN ISO 13849-1: Standard for safety in automation systems.
• UNITEC-D E-Catalog: Terms and specifications for components.