1. Introduction: The strategic importance of MRO inventory management
In today's industrial production, especially in conditions of increased operational risks and limited resources, the effective management of MRO (Maintenance, Repair, and Operations) supplies and stocks becomes a critical factor for uninterrupted operation and economic stability of the enterprise. MRO components, while often having a low unit cost, are vital to keeping production equipment in working order. Improper management of these inventories can result in significant financial losses due to equipment downtime, excess inventory, or emergency purchases.
This paper explores the methodology of strategic MRO supplier consolidation and outsourcing opportunities as tools for supply chain optimization. The aim is to reduce the number of suppliers, for example from 200 to 12, to achieve significant savings, increase reliability of supply and reduce the administrative burden, in line with quality ISO 9001 and environmental management ISO 14001. standards
2. Problem: Quantifying costs from inefficient spare parts management
Inefficient MRO inventory management creates numerous problems that directly affect operational costs and production productivity:
- Idle equipment: The lack of necessary spare parts (stockout) leads to the stoppage of production lines. The cost of one hour of downtime in Ukrainian industry can vary from 10,000 to 50,000 euros or more, depending on the industry and scale of production.
- Overstocking: Holding excess stocks ties up working capital and generates significant holding costs. According to industry benchmarks, the annual cost of maintaining MRO inventories is 20-35% of their total cost. This includes storage costs, insurance, obsolescence, taxes and administrative costs. For example, inventory worth 500,000 euros annually costs the company 100,000 - 175,000 euros.
- Emergency Purchases: When a part is needed urgently, businesses are often forced to pay premium prices (up to +50% over standard cost) and high rates for expedited shipping, which increases the total cost of ownership.
- Administrative burden: Managing a large number of suppliers (eg 200+) requires significant resources for ordering, tracking deliveries, processing invoices and administering contracts. Making one order can cost 50-150 euros.
The average cost of MRO in industry is 3-10% of the total cost of production assets of the enterprise. Optimizing these costs has a direct impact on EBITDA.
3. Analytical base: Optimization methodology
For efficient consolidation of suppliers and optimization of MRO stocks, a multi-stage methodology is used:
3.1. Analysis of the current state
- Expenditure analysis: Detailed study of all MRO purchases over the last 2-3 years, identification of the largest categories of expenses and suppliers.
- ABC/XYZ inventory analysis:
- ABC: Classification of components by cost (A – high cost, C – low).
- XYZ: Classification by demand stability (X – stable, Z – unpredictable).
- Evaluation of supplier performance: Analysis of supply reliability, product quality, compliance with deadlines, technical support and compliance with standards (for example, EN 13445 certification for pressure vessels, CE for electrical equipment, UkrSEPRO for the Ukrainian market).
- Evaluation of internal processes: Study of the effectiveness of internal procedures for purchasing, storing and issuing spare parts.
3.2. Definition of consolidation criteria
- Technical compatibility and standardization: Prioritizing suppliers that can offer a wide range of standardized components that meet DSTU EN ISO and other industry standards.
- Quality and reliability: Selection of suppliers with a proven history of supplying high-quality products with CE, UkrSEPRO certificates and guarantees.
- Flexibility and responsiveness: The supplier's ability to respond quickly to changes in demand and ensure prompt delivery of critical components.
- Total cost of ownership (TCO): Estimate not only the purchase price, but also the associated costs: logistics, administration, quality, downtime risks.
- Financial stability of the supplier: Reducing the risks of supply interruptions. Compliance with the principles of risk management according to ISO 31000.
4. Stages of implementation: A practical guide
4.1. Data collection and analysis
Collect data on all MRO purchases for the past 2-3 years. Use a CMMS (Computerized Maintenance Management System) or ERP (Enterprise Resource Planning) to obtain detailed information on costs, order frequency, lead time, and component failure rates.
4.2. Categorization and standardization of components
Categorize MRO components (eg bearings, hydraulics, pneumatics, electronics, parts). For each category, identify opportunities for standardization. For example, instead of 5 types of 6205 bearings from different manufacturers, select one standard type that complies with ISO 15:2017 and one supplier.
4.3. Rationalization of suppliers
- Identification of key suppliers: Identify suppliers that provide significant volume or critical components.
- Deduplication: Eliminate vendors that supply identical or interchangeable components.
- Volume Consolidation: Reallocate purchasing volumes from many small suppliers to fewer strategic partners.
- Selecting an integrated supplier: Consider working with a single integrated supplier that can cover a wide range of MRO needs by offering outsourcing services. UNITEC-D GmbH offers such services by providing access to a wide range of spare parts through the UNITEC-D E-Catalog.
4.4. An example of calculating savings
Suppose an industrial company has an annual MRO budget of €1,500,000 and a current inventory value of €750,000.
- Current holding costs (25%): €750,000 * 0.25 = €187,500.
- Administrative costs (200 suppliers, 10 orders/month per supplier, €100/order): 200 * 10 * 100 = €240,000/year.
After consolidating up to 12 suppliers and implementing outsourcing:
- 20% reduction in inventory cost: €750,000 * 0.20 = €150,000 savings. New inventory value: €600,000.
- Reduced inventory holding costs (25% of €600,000): €150,000. Savings: 37,500 euros.
- Reduced administrative costs (12 suppliers, 10 orders/month per supplier, €100/order): 12 * 10 * 100 = €14,400/year. Savings: 225,600 euros.
- Volume reduction of purchase prices (5% of €1,500,000): €75,000.
Total annual savings: 150,000 + 37,500 + 225,600 + 75,000 = 488,100 euros. This represents more than 32% of the annual MRO budget.
5. KPIs and metrics: What to measure
To monitor the effectiveness of implemented changes, it is necessary to monitor key performance indicators (KPIs):
- Number of suppliers: Target value: 10-15 strategic suppliers.
- Inventory Turns: The ratio of the cost of goods sold to the average cost of inventory. Target value for MRO: 2-4 times per year.
- Service Level (Service Level): Percentage of completed orders without delays. Target value: >95%.
- Stockout Rate: Percentage of cases when the required spare part was out of stock. Target value: <1%.
- Total MRO spend: % decrease from previous periods.
- Order processing cost: Reduction in administrative costs per order.
- Lead Time: The average time from placing the order to receiving the product. Target value: 20-30% reduction.
- MTBF (Mean Time Between Failures): Average operating time before equipment failure. The improvement shows the quality of spare parts and the effectiveness of maintenance.
These metrics should be integrated into dashboards for continuous monitoring and quick decision-making.
6. Tools and technologies
Implementation of strategic consolidation and outsourcing is supported by modern tools:
- ERP/CMMS systems: Systems such as SAP, Maximo, 1C:Enterprise that allow automation of procurement, inventory, maintenance and data analysis management.
- Electronic catalogs and procurement platforms: UNITEC-D E-Catalog provides access to a wide range of industrial components, allows cross-referencing and optimizes the process of selecting and ordering spare parts.
- Inventory Management Software: Enables you to forecast demand, optimize reorder points and minimum/maximum inventory levels.
- Data analysis tools: BI systems for KPI visualization and trend detection.
7. Common mistakes and how to avoid them
- Focusing exclusively on purchase price: Lowest price does not always mean lowest TCO. Consider quality, reliability, delivery times and service.
- Ignoring Internal Costs: Underestimating administrative costs, storage costs, and equipment downtime leads to inaccurate savings calculations.
- Lack of reliable data: Decisions made without a complete and accurate analysis of purchasing and inventory data are doomed to failure.
- Resistance to change: Staff may resist change, especially if it affects established processes. Communication and learning are important.
- Insufficient contract management: Unclear terms of contracts with new strategic suppliers can lead to misunderstandings and conflicts. It is necessary to observe the standards of contract law and norms of international agreements.
8. Checklist of quick wins for the procurement manager
The following actions can be started within a week to quickly achieve visible results:
- Identify the 20% of components that generate 80% of costs (Pareto principle): Focus efforts on optimizing procurement of these items.
- Review current contracts with suppliers: Identify scope for negotiation regarding supply volumes and terms.
- Consolidate purchases of low-cost but frequently used items: Choose one supplier for such categories.
- Implement a cross-referencing process: Define interchangeable components and standardize their use. UNITEC-D E-Catalog offers ample opportunities for this.
- Start tracking stockouts and their cost: This will quantify the problem.
- Explore the potential of VMI (Vendor Managed Inventory): Allow a key vendor to manage specific categories of your inventory.
- Schedule a meeting with a potential integrated supplier: Discuss MRO outsourcing opportunities.
- Standardize parts nomenclature: Use a single coding system for all commonly used components.
- Analyze the history of emergency purchases: Determine the causes and develop measures to prevent them.
- Conduct obsolete inventory: Identify and dispose of components that have not been used for a long time (eg >3 years).
9. Conclusion
The strategic consolidation of MRO suppliers and the integration of outsourcing solutions is not just a tactical step, but a fundamental transformation of the supply chain, which provides significant savings, increased operational reliability and competitiveness of industrial enterprises of Ukraine. Reducing the number of suppliers from 200 to 12, as shown in the example, can save hundreds of thousands of euros annually through reduced inventory holding costs, administrative costs and purchasing prices.
UNITEC-D GmbH, with more than 20 years of experience in MRO and 10 years in engineering design, offers comprehensive outsourcing and integrated supply solutions that meet the highest quality and safety standards (CE, UkrSEPRO). Our experience and the wide range of products available through the UNITEC-D E-Catalog allow you to optimize your MRO processes, reduce risks and focus on your core production activities.
For detailed information on cooperation opportunities and the use of integrated UNITEC-D solutions, visit our UNITEC-D E-Catalog.
10. Links
- APQC. (2023). Supply Chain Management Benchmarks.
- ISO 9001:2015. Quality management systems. Requirements.
- ISO 14001:2015. Environmental management systems. Requirements and instructions for use.
- ISO 31000:2018. Risk management. Instructions.
- DSTU EN ISO 15:2017. Rolling bearings. Radial bearings. General characteristics.
- EN 13445:2014. Unheated pressure vessels.
- Institute of Industrial Management. (2022). MRO cost research in Ukrainian industry.
