The question of how much copper is in the refrigeratoroften arises among those who plan to recycle old household appliances or collect non-ferrous metals. Refrigeration equipment contains valuable resources that can be handed over to recycling centers for a significant amount of money. However, the exact weight of copper depends on many factors: the year of manufacture of the model, the type of compressor and the design of the heat exchanger.
Many people mistakenly believe that the entire refrigerator can be sold at the price of pure non-ferrous metal, but this is not so. The main mass of the case is steel i aluminum, which are much cheaper. Copper is concentrated in specific units that require careful disassembly. If you plan to extract maximum profit, you will have to understand the structure of the unit.
In this article we will analyze in detail where exactly the precious metal is located, what its real weight is in different models and whether the game is worth the candle. Understanding these nuances will help you avoid disappointment when weighing and correctly assess the potential income from recycling.
Where exactly is copper located in the refrigerator design
To answer the question of how many kilograms of copper can be obtained, you need to clearly understand the anatomy of the device. The main source of non-ferrous metal is compressor (motor). It is in this node that the lion's share of all copper contained in a household refrigerator is concentrated. The windings of the electric motor, located inside the sealed casing, are made of copper wire.
The second place in terms of copper content is occupied by capacitor (heat exchanger), which often looks like a grille on the back wall or is mounted in the side panels. In older Soviet-made models, the condenser tubes are made of pure copper. However, in modern technology (especially those produced after the 2000s), manufacturers often replace copper with aluminum or copper-plated steel, which significantly reduces the value of scrap.
⚠️ Attention: Do not try to disassemble the compressor without disconnecting it from the electrical outlet and making sure that there is no freon. Opening the sealed casing can lead to the release of residual refrigerant, which is unsafe.
The third source is capillary tube and the connecting lines. In expensive and older models they are made of copper, in budget ones they are often steel or aluminum. Also, small amounts of metal can be found in electrical wiring, start relays and thermostats, but their weight is so small that it is often not taken into account in rough calculations.
Why are there less copper in new refrigerators?
Modern manufacturers are trying to make the design cheaper. Replacing copper tubes with aluminum or coated steel allows you to reduce the cost of the product, but makes it less valuable when recycled.
Factors influencing the weight of non-ferrous metal
The weight of copper in one refrigerator is not a constant value. It varies depending on the era of production and class of equipment. Soviet refrigerators, such as ZIL, Biryusa or Minskare considered the "gold standard" for scrap collectors. They used thick-walled copper tubes and powerful motor windings.
Modern units, even premium brands like Liebherr or Bosch, are often designed with resource savings in mind. Engineers are reducing the diameter of the tubes and using composite materials where possible. Therefore, from two externally identical refrigerators of different years of manufacture, you can get different amounts of non-ferrous metal.
The type of compressor is also important. Standard reciprocating compressors contain more copper in the stator windings. Inverter models, which are becoming increasingly popular, may have a different motor design, which also affects the final weight of the extracted raw materials. In addition, the dimensions of the refrigerator play a role: in two-chamber models and Side-by-Side units, the heat exchangers are larger, therefore, there is potentially more metal in them.
We should not forget about the state of the technology. If the refrigerator was under repair, some of the tubes could be replaced with steel or aluminum analogues. In this case, the actual yield of copper will be lower than the calculated one.
Accurate calculation: table of copper weight by nodes
For those who deal with recycling professionally, it is important to have an idea of the numbers. Of course, it is impossible to weigh each component on a kitchen scale without complete disassembly, but there are average data that allow you to estimate profitability.
Below is a table showing the approximate copper content in various components of a standard old-style two-chamber refrigerator (before the year 2000):
| Refrigerator assembly | Material of execution | Approximate weight of copper (kg) |
|---|---|---|
| Compressor (windings) | Copper | 0.8 - 1.2 kg |
| Capacitor (grid) | Copper / Steel | 0.5 - 1.5 kg |
| Evaporator (inside the chamber) | Aluminum / Copper | 0.1 - 0.3 kg |
| Pipelines and capillaries | Copper | 0.2 - 0.4 kg |
As can be seen from the table, the main "jackpot" is compressor i condenser. In total, from one old refrigerator you can get from 1.5 to 3.5 kg of pure copper, if you are lucky with the design of the heat exchanger. In modern models, this figure can drop to 0.5–1 kg, since capacitors are often made of steel.
It is important to note that the weight is indicated for pure metal. When delivered to a collection point, scrap is often valued cheaper if it is part of a mixed unit (for example, a compressor assembled with a steel casing). Therefore, for maximum benefit, it is required cutting separation of copper from steel.
Economic feasibility of disassembly
Is the game worth the candle? To understand this, you need to compare labor costs and potential income. Renting an entire refrigerator as scrap or household appliances is cheap. Reception points pay for it symbolically, since they themselves have to spend resources on freon recycling and disassembly.
If you extract copper yourself, you can sell it at a price non-ferrous scrap, which is several times higher than the cost of ferrous metal. However, the disassembly process is labor-intensive. You will need tools: a hacksaw, wire cutters, pliers and, possibly, a grinder.
- 🔨 To open the compressor, you will need to remove the sealed casing, which is difficult to do accurately without special equipment.
- 🔧 Separating copper tubes from steel elementsator requires care not to mix metals.
- 🧤 Safety precautions must be observed: sharp metal edges and oil residues can be dangerous.
⚠️ Attention: Prices for scrap non-ferrous metals fluctuate daily. Before starting mass disassembly, check the current prices in your region to make sure the process is cost-effective.
If you have one refrigerator, the game may not be worth the candle - it will take a lot of time, and you’ll get enough money for a couple of lunches. But if we are talking about a batch of 10–20 pieces of equipment, then the labor costs pay off in full. This is exactly how professional resellers make money, buying equipment in bulk and selling cut-up non-ferrous metal.
The process of extracting and cutting metal
You should start by dismantling the compressor. It is located in a niche at the bottom rear of the refrigerator. Cut through the copper tubes that go to it and unscrew the mounting bolts. The compressor usually weighs 8–12 kg, but copper in it, as we found out, is about 10% of the mass.
Next comes the most difficult stage - working with the heat exchanger. If it is a hinged grille at the back, it needs to be carefully bent or sawed off. If the capacitor is built into the walls of the housing (which is often the case in modern models), it is almost impossible to remove the tubes without damaging the housing. In such cases, the entire assembly is handed over or accessible parts are cut off.
To increase the price of the material being handed over, copper must be cleared of insulation (if it is on the wires), solder and other metals. Pure copper (M1, M2) is valued higher than tinned or mixed with solder. Use a torch to anneal the insulation, but do it outdoors, as burning plastic releases toxic substances.
☑️ Tools for disassembling the refrigerator
Don't forget to drain the oil from the compressor before cutting. It may be useful for technical purposes or must be disposed of correctly. Simply pouring it onto the ground is prohibited by environmental regulations.
Safety and environmental aspects
Disassembling a refrigerator is not only an economic, but also an environmental issue. Circulates inside the system freon. In older models, these may be ozone-depleting gases (R12), in new ones - safer, but still requiring caution (R134a, R600a).
Especially dangerous isobutane (R600a)which is used in many modern refrigerators. This is a flammable gas. If there is a spark nearby when cutting the pipes, an explosion may occur. Therefore, before any cutting work, make sure that the system is completely depressurized and the gas has evaporated.
It is also worth mentioning thermal insulation. In old refrigerators, there may be glass wool or foam between the walls, which, when destroyed, releases harmful dust. It is better to work in a respirator and in a well-ventilated area or outdoors.
⚠️ Attention: Never burn wire insulation over an open fire in enclosed spaces. The smoke emitted contains dioxins and other toxic compounds that are hazardous to health.
Proper disposal of the rest of the refrigerator (plastic, glass, ferrous metal) is also important. Hand over waste to specialized points so that it does not end up in a landfill, polluting the soil and water.
Frequently asked questions (FAQ)
Is it possible to hand over an entire refrigerator without disassembling it?
Yes, many collection points accept entire refrigerators as scrap or household appliances. However, the price per kilogram will be significantly lower than for cut copper. This is beneficial only if you do not have time or tools for disassembly.
How much does 1 kg of copper cost in the refrigerator?
The price depends on the region and point of receipt, as well as on the type of copper (M1, M2, Mix). Usually it fluctuates within the range of market prices for non-ferrous scrap. You can find out the exact amount by calling the nearest procurement point.
Is there gold or silver in the refrigerator?
Precious metals (gold, silver) are practically not used in household refrigerators. They can be found in microscopic quantities in electronic contacts (if there is a display or a complex control board), but their removal is not economically feasible.
Is a compressor dangerous when sawed?
Yes, there may be compressed gas and oil vapor inside the compressor. When heated by an angle grinder, a popping sound is possible. There may also be an asbestos gasket inside (in very old models), the dust from which is harmful. You need to cut carefully, wearing a mask and glasses.
What to do with freon during disassembly?
It is difficult to safely remove freon at home. Usually, the tubes are simply cut in a well-ventilated place and wait several hours until the gas has completely evaporated before starting soldering or welding.