The question of exactly how much useful material can be extracted from old household appliances often arises when preparing for disposal or the desire to make money from recycling. Refrigerator is one of the largest items in the house, and many mistakenly believe that it consists entirely of valuable iron. However, the real picture is much more complex and interesting from the point of view of the physics and chemistry of the elements.
The total weight of the unit depends on its model, chamber volume and year of manufacture. Old Soviet models can weigh significantly more than modern energy-efficient counterparts due to wall thickness and the type of refrigerant used. If you are planning disassembly, it is important to understand that yield of pure metal will make up only a portion of the total mass of the device.
The bulk of the structure is indeed made up of ferromagnets, but there are other components hidden inside that require special attention. On average, from a standard two-chamber refrigerator you can get from 30 to 50 kilograms, if you count it together with the casing and internal partitions. However, the real profit depends not so much on the weight, but on the correct sorting of materials. ferrous metal, if counted together with the casing and internal partitions. However, the real profit depends not so much on the weight, but on the correct sorting of materials.
Design features and weight categories
To accurately determine the potential yield of raw materials, it is necessary to consider the design of the refrigerator as an engineering system. The body is made of sheet steel, which goes through a stamping and painting process. It is this outer casing that gives the main increase in mass in the category of ferrous metals. Internal shelves and drawers are most often made of plastic or glass, which are not of interest to scrap metal collection points.
The weight of the unit directly correlates with its volume. Small single-chamber models weigh about 30-40 kg, while massive Side-by-Side models can reach 100-120 kg. It is important to note that a significant part of the weight is not only metal, but also thermal insulation material, as well as compressor equipment. Compressor is the heart of the system, containing copper windings and a steel body, which makes it the most valuable component when disassembling.
Modern models are often lighter than their predecessors due to the use of thinner walls and new types of insulation. This reduces logistics costs, but reduces the amount of metal delivered. When assessing weight, you should take into account the presence of a system No Frostthat adds additional fans and heaters, although their mass in the overall balance is small.
Ferrous metal: the basis of the design
The lion's share of the weight of the refrigerator falls on steel. This is the material of the body, door panels, internal partitions and even some compressor mounting elements. Steel is a ferrous metal, the price of which is determined by the market and is usually lower than that of non-ferrous alloys. However, due to the large volume, the delivery of scrap steel remains profitable if there are a sufficient number of pieces of equipment.
When disassembling, it is important to separate steel from other materials. Doors often have a complex structure: an outer steel sheet, a layer of insulation and an inner plastic panel. If the door is returned as a whole, it may be accepted as mixed scrap or even reduced in weight due to non-metallic inclusions. Pure steel is valued higher, so dismantling the outer panels is a key stage of preparation.
The table below shows the approximate distribution of the mass of metals in a standard two-chamber refrigerator weighing about 60 kg:
| Component | Metal type | Approximate weight (kg) | Weight percentage (%) |
|---|---|---|---|
| Body and doors | Steel (black scrap) | 35-40 | ~60% |
| Compressor (housing) | Steel | 5-7 | ~10% |
| Compressor (winding) | Copper/Aluminium | 0.5-1.2 | ~2% |
| Pipelines | Steel/Copper/Aluminium | 1-2 | ~3% |
| Other (grids, fasteners) | Mixed | 2-4 | ~5% |
It is worth considering that some manufacturers use aluminum for back panels or condenser grilles. Aluminum belongs to non-ferrous metals and costs much more than steel. Visually, it is distinguished by its matte silver color and non-magnetic properties. If the magnet does not stick to the radiator grille on the back wall, it means there is aluminum there, which needs to be returned separately.
Non-ferrous metals: where the value is hidden
Although ferrous metal makes up the bulk, it is non-ferrous metals that form the bulk of the profit when scrapping a refrigerator. The main prize here is copper, which is used in the compressor motor windings and, in some models, in heat exchangers. The price of copper scrap is several times higher than the cost of ferrous metal.
The second important element is aluminum. As mentioned earlier, it can be found in evaporator heat sinks (especially older models with exposed coils inside the chamber) and in some types of condensers. Aluminum can also be used to make internal shelves or decorative trims, although in modern refrigerators it is increasingly being replaced by plastic.
How to distinguish copper from brass or aluminum?
Copper has a characteristic reddish-red color and very high electrical conductivity. Aluminum is silvery white, lightweight and non-magnetic. Brass is yellowish, harder than copper. When heated, copper turns black, and aluminum melts at a lower temperature.
When dismantling the compressor, you must act carefully. Inside the sealed casing there is oil, which is waste and requires special disposal. Stator winding The engine is made of copper, but in cheap models of recent years, manufacturers can use aluminum with copper plating. This can only be determined by the cut of the wire: if there is a white core inside, it is aluminum.
⚠️ Attention: When sawing the compressor, use a respirator. There may be residual oil with impurities inside, the vapors of which are toxic. It is also possible that there may be residual refrigerant under pressure.
Hazardous components and environmental safety
Disassembling a refrigerator is not only a search for metal, but also working with potentially hazardous substances. In older models produced before 2010, freoncould be used as a refrigerant. Although modern freons (R134a, R600a) are less dangerous for the ozone layer, their direct release into the atmosphere is prohibited by environmental legislation.
Thermal insulating foam is especially dangerous. In old-style refrigerators, substances that destroy the ozone layer were used to foam polyurethane. When such foam is burned or mechanically destroyed, toxic compounds are released. Therefore burning insulation to extract metal is strictly prohibited and harmful to health.
It is also worth paying attention to electrical wiring. The cables contain copper conductors, but their insulation (PVC) releases chlorine and dioxins when burned. Proper disposal involves separating plastic and metal. In some models, mercury thermostats are found, although they are becoming rare.
☑️ Rules for safe disassembly
Disassembly technology for maximum yield
In order to obtain the maximum profit, it is not enough to simply smash a refrigerator with a sledgehammer. Competent separation materials are required. The first thing to unscrew is the compressor, since it contains the most expensive components. Then the doors are dismantled and separated from the main body.
Next follows the stage of separating the steel sheet from the plastic inner lining. This is a labor-intensive process, often requiring the use of physical force or heating tools to soften the adhesive layers. However, pure steel without plastic will be accepted at a higher price and with a higher coefficient.
Cooling system pipelines are also subject to separation. Copper tubes (if any) are cut out separately, steel tubes - separately. Aluminum radiators carefully cut out from the body. The cleaner the scrap is sorted, the more profitable the transaction will be at the collection point.
⚠️ Attention: Prices for scrap metal are floating and depend on stock exchange quotations. Before starting mass disassembly, check the current prices in your region, as they may change weekly.
Economic feasibility of disposal
Is the game worth the candle? If you have one old refrigerator, the cost of transporting it and the time spent disassembling it may exceed the income from selling the metal. In this case, it is more rational to use the services of free removal of old equipment, which stores often offer when purchasing a new unit.
It’s another matter if you are engaged purchase or you have accumulated several pieces of equipment. In this case, the concentration of non-ferrous metals (copper, aluminum, brass) can bring significant income. The average income from one completely disassembled refrigerator (taking into account the price of copper and aluminum) can range from 300 to 800 rubles, depending on current tariffs.
It is also important to take into account the cost of tools. For high-quality disassembly you will need an angle grinder, a set of keys, pliers and protective equipment. If you buy tools specifically for one refrigerator, the project will be unprofitable.
Is it possible to hand over the entire refrigerator?
Yes, many collection points accept entire household appliances, but price them as “mix” or “meal” at a minimum price. You lose up to 60% of potential profit without separating non-ferrous metals.
Frequently asked questions (FAQ)
Approximately how much does a refrigerator compressor weigh?
The weight of the compressor varies from 8 to 12 kg depending on the power and model. However, the useful yield of non-ferrous metal (copper winding) from it is only about 500-900 grams. The rest is the steel shell and oil.
Do refrigerators accept gas (freon) inside?
Most serious scrap metal collection points require preliminary removal of the refrigerant. Delivery of a unit with gas may be prohibited or charged as dangerous goods. It is better to call a specialist to pump out freon.
Is there gold or silver in the refrigerator?
Precious metals are practically not used in household refrigerators. Electronic control boards (if any) may contain microdoses of gold in the contacts, but their extraction at home is unprofitable and environmentally hazardous.
What to do with the foam inside the case?
Polyurethane foam is not a valuable recyclable material for ordinary collection points. It must be disposed of as construction waste or municipal solid waste. It cannot be burned because of toxicity.