Practical Mechanical and Hydraulic Engineering Lessons
Learn Mechanical and Hydraulic Engineering Through Real Industrial Experience
I am Debasis Sasmal, a mechanical and hydraulic maintenance engineer with more than 15 years of experience in wire rod and bar mills across India, Nigeria and Senegal. Through this platform, I share practical lessons on hydraulic systems, lubrication, commissioning, preventive maintenance, fault diagnosis and industrial troubleshooting.
Featured lesson
Start with this lesson
A practical lesson taken straight from plant maintenance work.
What Are Grease Types, Composition, Grades and Uses?
A practical introduction to industrial grease: how grease is made up, the common thickener types, NLGI grades and where each type is used in plant maintenance.
Open the lesson pageChoose a learning path
Follow a structured route through the subject
Each path arranges lessons in a recommended order, from fundamentals to plant application.
Hydraulic Systems Fundamentals
Start here to build a solid understanding of how industrial hydraulic systems generate, control and use fluid power.
0 lessonsintermediatePumps Valves Cylinders and Motors
Study the main hydraulic components in detail: how they work, how they are selected and how they fail.
0 lessonsintermediateHydraulic Circuit Reading
Learn to read hydraulic and lubrication circuit drawings and trace faults on a real schematic.
0 lessonsbeginnerLubrication Systems
Centralised oil, grease and air-oil lubrication systems used in rolling mills and heavy plants.
1 lessonbeginnerPneumatic Systems
Compressed air preparation, valves, cylinders and common pneumatic maintenance work.
0 lessonsadvancedHydraulic Piping and Commissioning
Pipe routing, pickling and flushing, pressure testing, NAS oil cleanliness and system commissioning.
0 lessonsLatest lessons
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What this platform covers
Hydraulic systems
Power packs, accumulators, filtration and control of industrial fluid power.
Pumps, valves, motors and cylinders
Construction, selection, setting and failure modes of core components.
Hydraulic circuit drawings
Symbols, line types and tracing a function across a full schematic.
Pneumatic systems
Air preparation, valves, cylinders and everyday pneumatic maintenance.
Centralised lubrication
Oil circulating systems, pumps, distributors, filters and monitoring.
Grease lubrication
Grease types, grades, pumps, progressive distributors and dosing.
Air-oil lubrication
Dual-line and air-oil systems for high-speed mill bearings.
Cooling-water systems
Water circuits for mill equipment, boxes, pumps and heat exchangers.
What learners will gain
Skills you can apply on the plant floor
Read a hydraulic circuit with confidence
Follow pressure, return and pilot lines on real drawings and locate the component you are looking for.
Understand lubrication properly
Oil, grease and air-oil systems — what each one does, how it is set up and what makes it fail.
Commission systems methodically
Pipe preparation, pickling, flushing, pressure testing and NAS oil cleanliness in a logical sequence.
Diagnose faults systematically
A repeatable troubleshooting method instead of guesswork, applied to mechanical and hydraulic breakdowns.
Plan maintenance that holds
Preventive routines, spare-parts planning and shift practices that protect production availability.
Work safely
Isolation, lockout, depressurisation and manufacturer guidance treated as part of every job.
Your instructor
Debasis Sasmal, Mechanical and Hydraulic Maintenance Engineer
Through this platform, I share practical lessons developed from real industrial experience. My objective is to make mechanical maintenance, hydraulic systems, lubrication, commissioning and troubleshooting easier to understand and apply safely.
Professional credibility
Experience behind the lessons
Every lesson is grounded in erection, commissioning, maintenance and troubleshooting work on operating rolling mills.
- 15+ years of engineering experience
- Industrial experience across three countries
- Wire rod and bar mill specialisation
- Hydraulic and lubrication system expertise
- Erection, commissioning, maintenance and troubleshooting experience
Suggest a lesson
Is there a hydraulic circuit, lubrication system or maintenance problem you would like explained? Send the topic and it may become the next lesson.
Suggest a lessonAsk a question or discuss training
Engineering questions, technical training enquiries and educational collaboration are all welcome through the contact form or LinkedIn.