Question of precious metal content and non-ferrous metals in household appliances often arises among those who plan to sell an old unit for scrap metal. The refrigerator, despite its apparent simplicity, is a complex engineering unit, where copper plays a critical role. It is this material that is used in the most critical components of the cooling system due to its high thermal conductivity.
However, it is impossible to immediately name the exact weight of copper in one refrigerator, since it directly depends on the year of manufacture, model, manufacturer and, most importantly, on the type of compressor. Modern trends are aimed at reducing the use of expensive materials, so the amount of copper in new units may differ significantly from the equipment of the 80s or 90s. In this article, we will analyze in detail where to look for valuable metal and how much it can be obtained from recycling.
If you are interested in the exact figure for a specific model, it is worth knowing that on average, from 0.5 to 2.5 kg of pure copper can be extracted from one household refrigerator. Most of this volume comes from the motor-compressor, which is the heart of the system. The remaining amount is distributed over the heat exchanger and connecting tubes, which can be made of different alloys depending on the production technology.
Where exactly is copper located in the structure
The main reservoir of non-ferrous metal in any refrigeration cabinet is motor-compressor. It is inside this sealed block that the electric motor winding is located, which is made of copper wire. The more powerful and older the compressor, the more windings there are. In old Soviet models, only copper was used, while in some modern budget options, manufacturers can use aluminum or its alloys to reduce costs.
The second place in copper content is occupied by capacitor (heat exchanger), usually located on the rear wall of the unit. Visually, it is a black grille that dissipates heat. In high-quality equipment, the condenser tubes are made of copper, but recently copper-plated steel or all-aluminum coils are often found. It can be difficult to determine the material by eye, but a magnet will immediately show the presence of steel.
⚠️ Attention: When trying to extract copper from the compressor, remember that there is oil inside, which must be drained into a special container, and the housing itself will have to be sawed with a grinder. This is a dirty and potentially dangerous process that requires compliance with safety precautions.
The third source is the connecting tubes and evaporator. In No Frost systems, the evaporator is often hidden inside a plastic box and can be made of aluminum. The capillary tube connecting the nodes can also be copper or steel. Therefore, when counting on income from scrap sales, you should not rely only on the weight of the refrigerator itself, since the bulk of the weight is made up of the steel of the case and insulating materials.
Factors influencing the weight of copper
The amount of metal extracted is not constant and varies widely. The first and most important factor is year of production. Appliances manufactured before 2000 tend to contain significantly more copper. This is due to the fact that at that time there was no goal of maximum savings in materials, and engineers prioritized reliability and maintainability.
The second factor is the energy efficiency class and the type of refrigerant. More modern refrigerants may require different heat exchanger parameters, which affects the length and diameter of the tubes. In addition, in models with the system No Frost the design of the evaporator is more complex, but is often lighter in weight than non-ferrous metals due to the use of aluminum in the air channels.
- 🔹 Power compressor: two-compressor refrigerators contain almost twice as much copper as their single-compressor counterparts, since they have two motors and two cooling circuits.
- 🔹 Country of origin: European and Japanese brands (for example, Liebherr, Panasonic) traditionally use more copper in windings and tubes than some budget Chinese or Turkish assembly lines.
- 🔹 Chamber volume: in refrigerators with a capacity of more than 400 liters length the refrigerant circuit is larger, which increases the total weight of the tubes if they are made of copper.
It is also worth considering the condition of the unit. If the refrigerator was previously repaired, some of the copper tubes could be replaced with steel or aluminum analogues. In this case, the actual yield of non-ferrous metal will be less than the calculated one. Professional scrap metal acceptors often make a cut in the condenser tube to visually assess the quality of the metal before weighing.
Average copper content in different models
For the convenience of assessing the potential profit from the delivery of equipment, you can focus on average data. They were obtained based on the analysis (disassembly) of popular models of various years of production. It is important to understand that these figures are approximate and the actual value may differ by 20-30% in one direction or another.
Below is a table showing the dependence of the amount of copper on the type and age of the refrigerator. The data is relevant for standard household models with a height of 180-200 cm.
| Refrigerator type | Year of manufacture | Copper in the compressor (kg) | Copper in the heat exchanger (kg) | Total weight of copper (kg) |
|---|---|---|---|---|
| Single-chamber (old) | 1980-1990 | 1.2 - 1.5 | 1.0 - 1.5 | 2.2 - 3.0 |
| Double-chamber (medium) | 2000-2010 | 0.8 - 1.1 | 0.5 - 0.8 | 1.3 - 1.9 |
| Modern No Frost | 2015-2026 | 0.4 - 0.7 | 0.1 - 0.3 (often aluminum) | 0.5 - 1.0 |
| Industrial/Display | Any | 2.0 - 4.0 | 2.0 - 5.0 | 4.0 - 9.0 |
As can be seen from the table, The largest amount of copper is contained in old single-chamber Soviet-made models, where the weight of non-ferrous metal can reach 3 kg or more. Modern eco-friendly models strive to minimize the use of resources, so their copper output is significantly reduced. Industrial units used in stores remain leaders in the content of precious scrap.
Differences between copper and tinned steel
When evaluating scrap, confusion often arises between pure copper and tinned steel. Condenser tubes are often coated with a thin layer of copper to protect against corrosion and improve heat transfer, but remain steel inside. This significantly reduces their cost upon acceptance. You can distinguish materials using a magnet or a file.
If the magnet sticks to the tube, it is steel, even if it has a characteristic copper color. Pure copper and its alloys (brass, bronze) are not magnetic. In a compressor, the situation is different: there the winding is almost always copper, but its weight is only a fraction of the total weight of the heavy cast-iron motor housing.
⚠️ Attention: Some collection points may evaluate the entire refrigerator as “ferrous scrap” (steel) unless you open it and demonstrate the presence of non-ferrous metals separately. The price for colored scrap is 3-4 times higher than for black scrap.
It is also worth mentioning solders. Copper fittings and solders containing silver or other additives are used at the joints of the tubes. Their weight is small, but with large volumes of disposal (for example, an equipment warehouse), this can provide a noticeable increase. In domestic conditions, it is unprofitable to collect solders due to the labor-intensive process.
Why is there less copper in new refrigerators?
Manufacturers are switching to the use of aluminum and sputtered steel due to the high cost of copper and eco-design requirements. Aluminum is lighter and cheaper, although it is inferior to copper in thermal conductivity and durability. In addition, modern refrigerants allow you to work effectively with a smaller heat exchanger volume.
Extraction process and preparation for delivery
If you decide to extract copper yourself, you will need a set of tools: an angle grinder, wire cutters, pliers and an oil container. The process begins with dismantling the compressor. It must be carefully sawed off from the frame, being careful not to damage the tubes, if you plan to assess their condition. After this, the compressor is opened to remove the winding.
Next follows the stage of separating the heat exchanger. The grille on the back of the refrigerator is often glued or soldered to the body. It needs to be cut or bent. If the tubes are steel (we check with a magnet), they can be returned along with the main body as black scrap, since their price is low. Copper elements are placed in a separate pile.
☑️ Preparing the refrigerator for disposal
It is important to properly prepare the wires. The electrical cord running to the refrigerator and internal wiring also contain copper. However, insulation (rubber, PVC) reduces the price of scrap. To obtain maximum profit, it is advisable to strip the wires, leaving only the metal, although many items also accept insulation at a reduced price.
Economic feasibility and scrap market
Is the game worth the candle? To answer this question, you need to compare the time and effort required to current scrap prices. At the time of writing, the price of copper scrap (Mix) varies, but it is significantly higher than the price of ferrous metal. However, given that there is only about 1-2 kg of copper in one refrigerator, the revenue from one unit will be small.
Profitability appears when recycling a batch of 10-20 refrigerators or if you have access to a free source of equipment (for example, working in a service center or housing office). Otherwise, the cost of gasoline, tools and time may exceed the income from the sale of 1.5 kg of copper.
- 📉 Price volatility: copper exchange quotes are constantly changing, which directly affects purchase prices at collection points.
- 🚚 Logistics: transporting a heavy refrigerator to the delivery point may cost more than revenue from metal, if you do not have your own freight transport.
- ♻️ Ecology: proper disposal through specialized companies is often free or costs little money, but guarantees safe recycling of freon and oils.
Environmental aspects of recycling
Do not forget that a refrigerator is not only metal. A refrigerant (freon) circulates inside the system, which, when released into the atmosphere, destroys the ozone layer. In addition, the housing insulation (polyurethane foam) may contain harmful substances. When sawing the body yourself, these gases can be released.
Professional recycling plants have systems for freon recovery and safe crushing of insulation. By handing over your refrigerator to a specialist store, you are helping to protect the environment, even if you don't get paid for it. In this process, the copper will be melted down and used to produce new appliances, closing the resource cycle.
In some regions, there are programs for recycling old household appliances, where for returning an old refrigerator you can get a discount on the purchase of a new one. This may be a more profitable solution than selling for scrap. Follow the promotions of large retailers and equipment manufacturers.
Exactly how much copper is in a compressor from an Atlant refrigerator?
In Atlant compressors of the Soviet and early post-Soviet period (before 2005), the weight of the copper winding is approximately 1.0–1.2 kg. In more modern models (after 2010), less copper is used, about 0.6–0.8 kg, since more efficient but compact windings and partially aluminum alloys are used.
Is it possible to hand over the entire refrigerator as non-ferrous scrap?
No, the entire refrigerator is sold as "oversized black scrap" or "household appliances". Non-ferrous scrap (copper, aluminum, brass) is accepted only after sorting. To get the price of non-ferrous metal, it is necessary to dismantle the copper tubes and the compressor winding separately.
Does the brand of the refrigerator affect the amount of copper?
Yes, it does. Premium brands (Liebherr, Bosch, Siemens) more often use copper tubes in heat exchangers, even in modern models, while budget brands may use steel or aluminum to reduce the cost of construction. Japanese compressors traditionally have a high percentage of copper in the windings.
What to do with the oil from the compressor during disassembly?
Technical oil from the compressor should not be poured into the sewer or onto the ground. It refers to waste that pollutes the environment. Collect it in an airtight container and hand it over to a waste oil collection point or transfer it to a specialized waste disposal organization.