
Introduction by Qijin Fang
From now on, let data speak. Data-driven management is not just for large enterprises. It starts with a well-designed maintenance request form, grows through a simple Excel sort, and matures as teams develop the habit of “making decisions based on data”.
This is the concluding piece in the equipment management series. In the previous four articles, we solidified the foundations of management thinking, inspection, cleaning, and repair processes. Now, it is time to equip this system with a “brain” to make it truly intelligent—this brain is data.
Without data, equipment management is like a “blind man touching an elephant”; decisions are made based on feelings. In contrast, being data-driven allows you to know precisely:
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Which equipment is a “problem child” that is wasting the most money?
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What type of failure occurs most frequently? What is its root cause?
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Should new equipment be purchased next year? Where should the budget be focused?
Let’s unlock how to utilize the data at hand to achieve a leap from “experience-driven” to “data-driven” equipment management.
1. Data Collection: Starting with the “Three Pillars”
You don’t need to pursue high-end IoT sensors from the start. Starting with the most basic and readily available data can generate significant value.
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Inspection and Cleaning Data: The daily inspection results and issues found during cleaning recorded by operators serve as the “daily thermometer” for equipment health.
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Maintenance Request Data: This is crucial! Each maintenance request form is a valuable “case study” containing key information such as equipment, failure symptoms, handling measures, downtime, and maintenance personnel.
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Operation and Output Data: Gather data on equipment operating time, downtime, and output quantity from production records.
Action Guide: Start immediately by ensuring your “Equipment Maintenance Request Form” is well-designed and includes all key information fields. This is the foundation for all data analysis.
2. Data Analysis: “Three Reports” to Understand Management Overview
The collected data is like ore; it needs to be refined to become gold. You don’t need complex software; you can generate the following three core reports using Excel pivot tables.
Report 1: Equipment Failure Top List (Identify Weaknesses)
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What to Analyze: Count the number of failures and total downtime for each piece of equipment.
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How to Analyze: Sort by downtime from high to low.
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What’s the Benefit:
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Quick Identification: Quickly find the top 3 “problematic equipment” in the factory and prioritize them for management.
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Resource Allocation: Allocate excellent maintenance resources and improvement efforts to these devices first, ensuring the highest return on investment.
Case Study: A factory discovered that the downtime of an old punch press accounted for 40% of total downtime. The engineering team focused on overhauling and partially modifying it, resulting in a 70% reduction in downtime the following month and a significant increase in overall capacity.
Report 2: Failure Type Pareto Chart (Focus on Key Issues)
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What to Analyze: Count the types and frequencies of all failures.
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How to Analyze: Present using a Pareto chart (80/20 rule) to see which failure types account for 80% of total issues.
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What’s the Benefit:
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Focus on Problems: Avoid “treating the symptoms”. If “seal leakage” accounts for 50% of failures, initiate a special improvement project for “leak prevention” rather than investigating occasional circuit issues.
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Preventive Maintenance: Optimize inspection standards and maintenance procedures for high-frequency failures to strengthen prevention.
Case Study: Analysis revealed that “conveyor belt misalignment” was the most frequent failure. The maintenance department did not just keep adjusting but conducted a thorough analysis and found a design flaw in the tensioning mechanism. A low-cost homemade part completely resolved the issue, eliminating such failures.
Report 3: Key Indicator Trend Chart (Evaluate Effectiveness)
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What to Analyze: Track Overall Equipment Efficiency (OEE), Mean Time Between Failures (MTBF), and Mean Time to Repair (MTTR).
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OEE: The golden indicator for measuring overall equipment efficiency.
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MTBF: Average time between failures, reflecting equipment reliability.
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MTTR: Average repair time, reflecting the skills of the maintenance team and the efficiency of spare parts.
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How to Analyze: Calculate monthly and plot a line graph to observe trends.
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What’s the Benefit:
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Measure Improvement Effectiveness: Are all your inspections, cleaning, and training efforts effective? It’s clear to see if these indicators are rising or falling.
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Scientific Decision-Making: With historical data support, applying for spare parts budgets, equipment modification investments, and personnel adjustments becomes more persuasive.
3. Data Application: From “Viewing Reports” to “Making Decisions”
Data itself has no value; the decisions made using it are what hold value.
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Guide Procurement and Spare Parts Inventory: Based on failure type data, accurately procure frequently replaced spare parts to reduce capital occupation. For example, if data analysis shows a certain model of bearing is replaced twice a month on average, the safety stock should be set accordingly.
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Optimize Preventive Maintenance (PM) Plans: Adjust maintenance frequency based on actual equipment failure cycles. If a manual suggests maintenance every 500 hours, but data shows it typically fails around 800 hours, the maintenance interval can be scientifically extended to save costs.
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Targeted Training to Enhance Skills: If data shows that hydraulic system failure repair times are generally long, it indicates insufficient hydraulic skills in the team, warranting specialized training.
From Now On, Let Data Speak
Data-driven management is not just for large enterprises. It starts with a well-designed maintenance request form, grows through a simple Excel sort, and matures as teams develop the habit of “making decisions based on data”.
Please review:
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Is our maintenance request form recorded in a sufficiently standardized manner?
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Can I immediately identify which equipment had the longest downtime last month?
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What are the three main types of failures we face?
If you cannot answer these questions immediately, the value of data is quietly slipping away from you.
This series has provided you with a complete and immediately actionable path for upgrading equipment management, from thinking, inspection, cleaning, processes to data. These five steps are interconnected and mutually reinforcing. You don’t need to achieve everything at once; just start with any one of these steps, and your factory will take a solid step towards the goal of “zero failures and full efficiency”.
Managing equipment well means managing the present and future of the enterprise.

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