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Articles

Articles on maintenance, energy, and plant operations

Practical writing from the Machvory engineering team on maintenance management, asset reliability, energy, and plant digitalization. Every claim carries a reference you can check.

Rows of old electricity kWh meters mounted side by side on a wall

Energy

How to cut electricity use in a factory: from the bill to the machine

How to cut electricity use in a factory: read the bill (peak and off-peak kWh, kVArh), meter by machine, find the waste, and verify savings against a baseline.

· 19 min read

A tapered roller bearing, its cone with rollers and its cup, resting on a surface against a blue background

Asset reliability

Signs of a failing motor bearing and how to catch it before it seizes

Signs of a failing motor bearing in industrial motors, pumps, and fans, its causes under ISO 15243, and how to detect it with vibration, envelope, and BPFO.

· 18 min read

A blue industrial electric motor mounted on equipment, with a bundle of orange power cable and a red industrial plug

Asset reliability

Why an electric motor runs hot, and what to do about it

Why an electric motor runs hot in a plant: overload, voltage unbalance, bearings, and cooling. Learn normal temperature, how to measure it, and how to fix it.

· 18 min read

Close-up of a gray industrial electric motor with its cooling fan cover and terminal box, mounted on a steel housing

Asset reliability

Electric motor vibration standards: ISO 10816, ISO 20816, and how to read them

Electric motor vibration standards under ISO 10816 and ISO 20816: mm/s RMS units, zones A to D, machine groups, foundation types, and how to read a reading.

· 18 min read

A group of maintenance technicians in yellow and blue hard hats gathered around a machine control panel, reviewing a document together

Maintenance management

Maintenance KPIs: the indicators, the formulas, and how to use them

Maintenance KPIs measure how well maintenance meets its goals. The core KPIs and their formulas, examples by level, backlog in weeks, and dashboard design.

· 17 min read

A maintenance technician holding a green folder and looking up at stainless steel process equipment in a clean production hall

Maintenance management

Maintenance work orders: what they are, what goes on the form, and the workflow

A maintenance work order is a written instruction for one maintenance job. Learn the types, what goes on the form, a worked example, and the status workflow.

· 17 min read

A row of large blue industrial pump and motor units in a plant pump room

Asset reliability

What is condition monitoring? Definition, techniques, and how to start in a plant

Condition monitoring reads machine health from measured data. Learn the main techniques, the ISO 17359 flow, why baselines matter, and how to start small.

· 14 min read

Two maintenance technicians in hard hats and hi-vis vests reviewing data on a tablet inside an industrial plant

Asset reliability

Root cause analysis (RCA) in maintenance: 5 Whys, fishbone, and how to run one

Root cause analysis in maintenance finds why failures keep coming back. Learn 5 Whys, the 6M fishbone, FTA, FMEA, a worked example, and the steps to run one.

· 17 min read

A maintenance technician in a hard hat, safety glasses and a hi-vis vest checking an industrial machine on the plant floor

Maintenance management

How to calculate MTBF and MTTR, and how to read them correctly

How to calculate MTBF and MTTR, with formulas, a worked pump example, the link to availability, and the reading mistakes plants make most often.

· 14 min read

Technician in a hard hat inspecting the door of an electrical control cabinet in an industrial room in dark blue tones

Maintenance management

What is preventive maintenance? Types, scheduling, and limits

Preventive maintenance is maintenance done before a failure occurs. Learn its types, how to build a PM schedule, PM compliance, and when PM actually adds risk.

· 16 min read

An open industrial electrical control panel with rows of breakers, terminal blocks, and a yellow high-voltage warning sign

Energy

Factory electrical energy monitoring: what to measure and how to read it

Factory electrical energy monitoring: what to measure (kWh, kW, power factor, harmonics), sub-metering, SEC indicators, baselines, and how to verify savings.

· 18 min read

Two blue electric motor and pump sets on a skid with blue pipework in a pump room

Asset reliability

Machine vibration analysis: basics, parameters, and how to read the results

Machine vibration analysis reads the condition of pumps, motors, and compressors from their vibration. Learn measurements, FFT spectrum, and ISO 20816 zones.

· 15 min read

Engineers working at their desks, one of them pointing at a 3D CAD model of a structure on a monitor

Operations & visualization

What is a digital twin? Meaning, types, and how plants apply it

A digital twin is a digital copy of an asset kept in sync by data. See how a digital model, shadow, and twin differ, the data they need, and how to start.

· 14 min read

Long roller conveyor lines running through a bright, empty factory hall

Productivity

Machine downtime: how to record it, analyze it, and reduce it

Machine downtime is time a machine stands still when it should be producing. Learn how to record it, use reason codes, Pareto analysis, 5 whys, and SMED.

· 16 min read

Workers at stations along a clean, bright assembly line with tool lines hanging overhead

Operations & visualization

What is an andon system? Origins, how it works, and its digital form

An andon system is a signal for calling help when a problem occurs on a production line. Learn its Toyota origins, how it works, digital andon, and key metrics.

· 15 min read

Pumps and pipework with pressure gauges in a plant utility room

Asset reliability

What is predictive maintenance? Definition, techniques, and how to implement it

Predictive maintenance uses machine condition data to decide when maintenance is needed. Learn the P-F curve, monitoring techniques, and how to implement it.

· 9 min read

An automated production line on a brightly lit factory floor

Productivity

What is OEE? How to calculate it, read it, and improve it

OEE (Overall Equipment Effectiveness) measures how productive a machine is against its potential. Learn the formulas, a worked example, and the six big losses.

· 9 min read

A maintenance technician checking a work document on a tablet in a spare parts store

Maintenance management

What is a CMMS? Definition, functions, and how to implement one in a plant

A CMMS is software for planning, recording, and measuring maintenance work. Learn its core functions, the MTBF and MTTR metrics, and how to implement one.

· 11 min read

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