The question of what is contained in a used refrigerator concerns not only the owners of collection points for people of color metals, but also ordinary citizens who decided to hand over old household appliances. People often mistakenly believe that kilograms of precious metal are hidden inside the case, but reality dictates its own conditions. The design of the refrigeration unit has changed over the past decades, and the quantity how much copper contained in a refrigerator that has expired, worries not only the owners of non-ferrous metals collection points, but also ordinary citizens who decide to hand over old household appliances. People often mistakenly believe that kilograms of precious metal are hidden inside the case, but reality dictates its own conditions. The design of the refrigeration unit has changed over the past decades, and the number non-ferrous metal in modern models has been significantly reduced compared to Soviet counterparts.
Before proceeding with disassembly or transporting equipment, It is necessary to understand that the main weight is occupied by steel, plastic and insulating foam. Copper is distributed among specific nodes, and its extraction requires some effort. In this article, we will analyze in detail where exactly to look for a valuable resource, how to calculate the approximate weight and whether the game is worth the candle, taking into account labor costs and current prices for scrap.
It is important to immediately note that the exact figure depends on year of manufacture and the model of the device. The old Soviet ZILs or Morozkos were much richer in non-ferrous metals than modern energy-efficient units, where every gram of material is optimized to reduce costs. Therefore, when answering the question, we will consider average values and specific components.
Main sources of copper in the design of a refrigerator
The main “donor” of non-ferrous metal in any refrigerator is compressor. It is in this node that the bulk of the copper used for the electric motor windings is concentrated. However, you should not expect that the entire weight of the compressor is pure metal. Inside the housing there is oil, steel core plates and mechanical parts, which make up a significant part of the mass.
The second important element is heat exchangerwhich is divided into a condenser (located at the back or on the sides) and an evaporator (inside the chamber). In older models, these tubes were made of pure copper, while modern budget options are increasingly using aluminum or copper-plated steel. This critically affects the final yield of metal upon delivery.
⚠️ Attention: In modern refrigerators (manufactured after 2010), the condenser tubes are often made of aluminum or steel. Only the areas directly adjacent to the compressor remain copper. Don't count on a lot of weight if the model is new.
The third source is electrical wiring. Power cables and internal wiring to the thermostat, light bulb and start relay also contain copper. Although the weight of this part is small compared to the compressor, when mass recycling of dozens of pieces of equipment it becomes noticeable. The wires usually have insulation, which must be taken into account when estimating the net weight of the metal.
Detailed calculation: the weight of copper in different nodes
To get an accurate idea of metal yieldlet's analyze each node separately. The weight of copper in a compressor depends on its power and engine design. On average, the electric motor makes up about 10-15% of the total weight of the compressor, but not all of that weight is copper. Part is occupied by steel and electrical iron.
Cooling system pipelines in older models could contain up to 1-1.5 kg of copper. In modern units, this figure has dropped to 200-400 grams, as manufacturers switched to cheaper materials and reduced the diameter of the tubes. “Weeping” type evaporators are often made of aluminum, which completely excludes them from the copper balance.
For clarity, consider the distribution table of copper in a typical middle-class refrigerator:
| Refrigerator assembly | Material of execution | Approximate weight of copper (d) | Comment |
|---|---|---|---|
| Compressor (windings) | Copper | 300 - 600 | Depends on motor power |
| Condenser (rear grille) | Steel/Aluminium | 0 - 100 | In older models up to 500 g |
| Evaporator (inside) | Aluminium | 0 | Rarely contains copper |
| Wiring and cables | Copper | 100 - 200 | Including power cord |
Thus, the total weight of copper in one modern refrigerator rarely exceeds 1 kilogram. At best, if you come across a successful Soviet model, you can count on 1.5-2 kg. This is a critically important factor when planning the profitability of disassembly.
The influence of the year of manufacture on the content of non-ferrous metal
The era of refrigerator production plays a decisive role. Equipment produced in the USSR (for example, Saratov, Biryusa, Minsk 70-80s) was designed with durability and maintainability in mind. At that time, the cost of materials was not the main limiting factor, so engineers used proven solutions, including copper tubes along the entire length of the circuit.
Models of the 90s and early 2000s (Indesit, Ariston, Stinol) still retained copper capacitors, but they had already begun to be introduced aluminum alloys. The transition period is characterized by mixed structures, where copper can be found in fragments. You can determine the material visually: copper has a characteristic reddish-red color when cut, while aluminum is silver-white.
⚠️ Attention: Do not try to determine the material of the tubes only by a magnet. Aluminum and copper are not magnetic, but there are also stainless steel and copper-plated steel, which can behave differently. The best way is to make a small file in an inconspicuous area.
Modern refrigerators (after 2015) are created in conditions of austerity. The use of copper is kept to an absolute minimum - only where it is technically necessary for the operation of the compressor. The bulk of heat exchangers are made of aluminum, which is much cheaper and lighter, although it is inferior to copper in thermal conductivity and maintainability.
Technology for extraction and preparation for delivery
If you are determined to extract copper yourself, you will need a set of tools and compliance with safety precautions. The process begins with dismantling the compressor. To do this, you need to cut the copper tubes that fit into the motor housing with wire cutters. Be careful: pressure or refrigerant vapor may remain in the system.
Next follows the step of cutting the compressor itself. The easiest way is to saw the body with a grinder to gain access to the windings. However, this is a labor-intensive and noisy process. Some sell compressors entirely as an “electric motor”, but the price per kilogram in this category is much lower than for clean copper shavings or burnt copper shavings
- 🛠️ Tools: grinder, wire cutters, pliers, wire stripper.
- 🧤 Protection: be sure to use gloves and goggles, as metal shavings and possibly oil residues fly when sawing a compressor.
- ♻️ Sorting: separate copper, aluminum and steel. Mixed scrap will be valued at the price of the cheapest component.
Wires can be stripped of insulation mechanically or burned. However, burning insulation outdoors is prohibited by environmental regulations and releases toxic substances. In addition, burnt copper loses value among receivers as it becomes brittle. It is better to use mechanical cleaning.
☑️ Preparing the refrigerator for disassembly
Economic feasibility and risks
Is the game worth the candle? Let's do the math. Let's say you extracted 800 grams of copper from the refrigerator. At current prices (conditionally 600-700 rubles per kg), revenue will be about 500 rubles. In this case, you will spend time on transportation (the refrigerator is large), disassembly (30-60 minutes) and purchasing wheels for the grinder.
If you sell the entire refrigerator as scrap or household appliances, you can get a comparable amount, but without the time and effort. Reception points often pay for the body with internals by weight, taking into account the presence of non-ferrous metals in the total mass, albeit at a reduced rate.
A separate risk is freon. The refrigerant contained in the system is an ozone depleting substance or greenhouse gas. Its release into the atmosphere is prohibited by international protocols. Professional recyclers have equipment for pumping out freon, while private owners often simply cut through the pipes, causing harm to the environment.
Why do copper prices change?
The cost of non-ferrous metals on the LME (London Metal Exchange) depends on demand in China, ore production and the geopolitical situation. Therefore, the price at the collection point may differ today and in a month.
Alternative disposal options
Instead of cutting yourself, consider the Trade-In option. Many electronics stores offer a discount on a new refrigerator when you trade in your old one. This discount can amount to several thousand rubles, which is several times higher than the cost of copper inside the unit. This is the most profitable way for the owner of working or entire equipment.
There are also services for free removal of old equipment. If the refrigerator is in good condition, it can be taken back free of charge for restoration and resale. If the condition is bad, some services will still take it away for free, since they make money from the metal themselves, having equipment for quick processing.
In conclusion, the answer to the question “how much copper is in the refrigerator” varies from 0.5 to 2 kg depending on the age of the model. For one-time disposal of one unit, independent disassembly for the sake of copper is not economically feasible due to high labor costs. However, if you have access to dozens of pieces of equipment, creating a mini-line for the extraction of non-ferrous metal can be a source of additional income.
Is it possible to return a refrigerator with freon at a collection point?
Most official collection points require that the freon be pumped out, or they accept equipment at a discount as “harmful substances”. Private receivers can pick it up as is, but this is a violation of environmental standards.
Why don’t they use copper tubes in new refrigerators?
Aluminum and steel are 3-4 times cheaper than copper. For manufacturers producing millions of units of equipment per year, replacing the material can save huge amounts, even taking into account the loss of heat transfer efficiency.
How to distinguish a copper tube from an aluminum one without cutting?
Copper is heavier than aluminum. If you take two tubes of the same size, the copper one will be noticeably heavier. Also, copper is less elastic and bends more easily without breaking, while aluminum is more fragile.
Does it make sense to disassemble the compressor at home?
Without a professional tool (grinder, powerful vice), it is extremely difficult to disassemble the sealed compressor housing. There is oil inside that is difficult to dispose of. It’s easier to hand over the entire compressor.