What is machine building?
Machine building (the engineering industry) makes machines, tools, vehicles, instruments and equipment. It is called the "heart" of industry because other branches, farms and homes all use its products: tractors, lathes, trains, aircraft, computers and medical devices.
It employs many people and links with metallurgy (metal in), electronics and chemistry (parts in), and with every buyer (machines out).
Main branches
- Heavy machine building: mining and steel-plant equipment, turbines, cranes. Big, heavy, metal-hungry.
- Transport machine building: cars, trucks, rail wagons, aircraft and ships.
- Agricultural machine building: tractors and combine harvesters, usually near farming regions.
- Precision and electrical machine building: instruments, electronics, computers, robots. This is science-intensive, which means it uses a lot of research and skilled work.
Location factors
- Metal factor: heavy machines stand near metal bases such as the Ural region.
- Labour and science factor: instruments and electronics go to big cities with universities, such as Moscow and St Petersburg.
- Consumer factor: farm machines near farmland, big or fragile machines near the buyer.
- Transport factor: shipyards at ports, assembly near rail and roads.
Plants gather where several factors meet, so big cities become machine-building centres.
Specialisation and cooperation
One plant cannot make every part well. With specialisation each plant makes only a few parts or one kind of product, and does it well. With cooperation these plants send their products to an assembly plant. A car is built this way from thousands of parts made by hundreds of firms.
This gives lower cost and better quality. The risk is that if one supplier stops, the line may stop. Today parts may travel across countries, so ports, rail and good roads matter.
Key formulas and definitions
- Heavy machines → near metal.
- Precision / science-intensive goods → near research and skilled labour.
- Cars → in a network of parts makers and buyers (assembly plant).
- Ships → at ports, with steel.
- Specialisation + cooperation = many plants, one finished product.
Worked examples
1. Why is a mining-equipment factory usually built near a metal base?
It uses very large amounts of steel and its products are huge and heavy, so carrying either metal or finished machines far costs a lot.
2. Why do instrument and electronics makers cluster in large cities?
They need engineers, research centres and universities. Their products are small and light, so carrying them is cheap and people matter more than metal.
3. What do we call a plant that joins parts made elsewhere into a finished car?
An assembly plant. It works through specialisation (each maker does one part) and cooperation (parts come together).
4. A car plant buys 4000 parts from 200 suppliers. If each supplier delivers by truck once a day, how many trucks arrive per day at least?
At least one per supplier: 200 trucks per day. This is why assembly plants sit near good roads and rail.
Common mistakes
- Thinking all machine plants must stand near metal. Precision goods do not.
- Calling machine building "the same as metallurgy". Metallurgy makes metal; machine building makes machines from it.
- Forgetting cooperation. A car is not made in one workshop.
- Believing a bigger plant is always better. Specialised small suppliers also matter.