The question of how much copper is contained in a household refrigerator brand Polyus, most often occurs when preparing equipment for delivery to non-ferrous metals collection points or during in-depth diagnosis of cooling system malfunctions. Polyus refrigerators, produced during the Soviet period and in the 90s, were famous for their reliability and the use of high-quality materials, including a large number of non-ferrous metals. The exact weight of copper depends on the specific model, year of manufacture and volume of the chamber, however, average values can be derived based on the design of a typical unit.
The main volume non-ferrous metal in these devices is concentrated not in the cabinet itself, but in units that ensure refrigerant circulation. Many owners mistakenly believe that copper is everywhere, but in reality these are strictly defined components: compressor, condenser and evaporator. Understanding the structure of the old Polyus allows you to assess its potential value as scrap or the need for complex repairs.
It is worth immediately noting that extracting copper from a household refrigerator is a labor-intensive process and requires compliance with safety precautions. Internal systems are under pressure and some components may contain hazardous substances if the model is a later model year. Before you start disassembling, you need to clearly understand where exactly to look for a valuable resource and in what quantity it is present there.
The weight of copper varies depending on whether an aluminum or copper evaporator was used in a particular model, as well as on the power of the installed motor. Soviet engineers did not skimp on materials, so the metal content in them is often higher than in modern Chinese counterparts. Next, we will analyze in detail the design of the units and provide calculated data. Polyus aluminum or copper evaporator, as well as the power of the installed motor. Soviet engineers did not skimp on materials, so the metal content in them is often higher than in modern Chinese counterparts. Next, we will analyze the design of the units in detail and provide calculated data.
Design features of Polyus refrigerators
Refrigerators Polyus, especially models of series 2 and 3, produced at the Murom plant, belonged to the class of small-sized equipment with chamber volume is about 140 liters. Structurally, they were a monoblock with or without an upper freezer, depending on the modification. Heat exchangers These units were traditionally made of steel tubes, which distinguished them from more expensive models of the time, which used copper.
However, speaking about copper, we first of all pay attention to compressor unit. In older models Polyus hermetic compressors of type HK or FGwere installed. Inside the housing of such a motor there is an electric motor winding made of copper wire, as well as copper suction and discharge tubes. It is these elements that are of interest for scrapping.
It is important to understand the difference between the external heat exchanger and internal components. If the capacitor (grid at the back) is mostly Polyusov steel, then the starting fittings and the engine itself contain non-ferrous metal. The design of these refrigerators is quite simple: the refrigerant circulates in a closed circuit, where copper is used in places that require high thermal conductivity and ductility, for example, in joints or capillary tubes.
⚠️ Attention: When disassembling old ones Polus refrigerators remember that systems before the 1990s could use R12 refrigerant (freon), which is harmful to the ozone layer. Do not release gas into the atmosphere just like that, it is better to contact a specialized service for disposal.
Analysis of the design shows that Polyus is not just a box with ice, but a complex unit where copper is integrated into the most critical components. Despite the massive use of steel in the 80s, the share of copper in electric motors remained high due to the requirements for energy efficiency and durability of windings.
The weight characteristics of components may vary slightly depending on the year of assembly. The plant could use different modifications of compressors, which affected the final metal content. However, the basic architecture remained unchanged over many years of production.
Where copper is located in the Polyus refrigerator
Localization non-ferrous metals in the refrigerator Pole is strictly regulated by production technology. The main source of copper is compressor. If you open it (which is only done when recycling), you will find massive stator and rotor windings made of pure electrolytic copper. The weight of this copper makes up the lion's share of the total metal content in the device.
The second place is occupied by pipeline system. Although the main lines were often made of steel, the connecting elements, capillary tube and areas near the compressor could be made of a copper alloy. The capillary tube is the thinnest element that ensures throttling of freon, and it is almost always copper.
The third source can be electrical components. The start and safety relays, mounted on the compressor casing, contain a small amount of copper in their contact groups and internal coils. Copper is also present in the wiring running from the thermostat to the compressor and the light bulb.
- 🔌 Motor windings: the cleanest and heaviest part, located inside the sealed compressor casing.
- 🔩 Input tubes: copper sections connecting the compressor to the main system (often yellow in appearance).
- ⚙️ Relays and starters: contain copper contacts and small inductors.
- 🔋 Wiring: internal power and ground cables, running along the body.
It is worth noting that in some modifications Polyus the capacitor could be made of aluminum or steel, which reduces the total amount of copper in the product. However, the compressor remains a constant source of valuable metal, regardless of the type of external heat exchanger.
When dismantling, it is important not to damage the copper elements if the goal is to maintain their integrity for resale as used spare parts, although most often when scrapping, integrity does not matter, only net weight is important.
Calculation of the weight of copper in various nodes
To accurately determine what how much copper can be obtained from one refrigerator Pole, it is necessary to decompose the device into components. The weight will vary, but there are average technical data obtained experimentally when disposing of such equipment.
The main weight gives compressor. On average, one old-style hermetic compressor weighs about 9-11 kg. Of this weight, approximately 10-15% is due to the copper winding. The rest is steel, cast iron and oil. Thus, from one motor you can get about 1-1.5 kg of pure copper.
Pipelines and additional elements make a smaller but significant contribution. The capillary tube, discharge and suction lines, if they are copper, can add another 300-500 grams of metal. Wiring and relays in total rarely exceed 100-200 grams.
| Component | Material | Approximate weight of the unit (kg) | Copper content (kg) |
|---|---|---|---|
| Compressor | Steel/Copper/Cast Iron | 10.0 | 1.2 - 1.5 |
| Pipelines | Copper/Steel | 1.5 | 0.3 - 0.5 |
| Electrics | Copper/Plastic | 0.3 | 0.1 - 0.2 |
| TOTAL | - | 11.8 | 1.6 - 2.2 |
Based on the table, we can conclude that one standard refrigerator Polyus contains on average from 1.6 to 2.2 kg of copper. This value is relevant for a completely disassembled device, where the metal is separated from impurities.
It is important to consider that when delivering non-ferrous metals to collection points, copper in the compressor (the so-called “copper in the engine”) can be assessed at a lower price than pure burnt copper. Therefore, it is more economically profitable to either remove the winding completely, or hand over the entire compressor as black scrap with a premium.
Comparison with modern models of refrigerators
Comparing old Soviet Poles with modern technology, you can notice a significant difference in the approach to the use of resources. Modern refrigerators are designed to minimize weight and cost, which leads to the active replacement of copper with aluminum.
In modern units evaporators they are often made of aluminum, since it is cheaper and lighter, although less durable in aggressive environments. Compressors have also become more compact, and the amount of copper in the windings of new inverter motors may be less due to the use of more efficient magnets and alloys, although the quality of the copper itself remains high.
Pipelines in new technology are also often made of aluminum or steel with a thin coating. This reduces maintainability, since aluminum soldering requires special skills and fluxes, in contrast to time-tested copper soldering, which was used in Polyus.
- 📉 Weight reduction: modern refrigerators are lighter than their Soviet counterparts precisely due to the elimination of heavy metals.
- 💰 Savings: manufacturers save on copper, as its price on the exchange is constantly growing.
- ♻️ Ecology: the use of aluminum simplifies processing, although copper is valued higher.
Thus, the old refrigerator Polyus is a kind of “canned food” for non-ferrous metals. Its value as recyclable material may be higher than that of a new Chinese refrigerator of the same volume, simply due to the mass of metal used.
However, do not forget about energy efficiency. The old one Polyus consumes significantly more electricity, and this overpayment for electricity over 10 years of operation will cover the benefit of scrapping its copper.
Technology for safe extraction of copper
If you have decided to independently extract copper from refrigerator Polyus, it is necessary to strictly follow the dismantling technology. The process begins by disconnecting the device from the network and completely defrosting it for 24 hours.
The first step is to remove the back panel. There you will see compressor and a capacitor grid. To remove copper from the compressor, it must be dismantled by biting it off with wire cutters or sawing through the supply pipes with a hacksaw. Next, the compressor is opened by sawing the body with a grinder or punching the bottom with a heavy tool (an ax) to get to the internal windings.
The tubes are cut off from the main circuit. If they are copper, they are cleaned of insulation and solder. The steel parts are separated. It is important not to mix copper with solder or steel, as this will reduce the scrap category.
⚠️ Attention: When sawing the compressor, use a respirator! There may be used compressor oil inside, the vapors of which are toxic, and when the insulation of the windings burns, acrid smoke is released.
The burning method is often used to remove the windings, but it is highly not recommended at home due to atmospheric pollution and loss of quality of copper (it becomes brittle). Mechanical cutting is a more environmentally friendly, albeit labor-intensive method.
☑️ Tools for disassembly
After extraction, the copper is sorted: wire separately, tubes separately, pieces of windings separately. This will allow you to get the maximum price for the metal at the collection point.
Economic feasibility and disposal
Is it worth disassembling Polyus refrigerator for the sake of copper? Let's do the math. If at the end you get about 2 kg of copper, and the price of reception is, conditionally, 600-700 rubles per kg (the price varies), then the revenue will be about 1200-1400 rubles. However, this is “dirty” copper, which can be accepted cheaper.
The time spent on disassembly, delivery to the collection point and health risks may not recoup this amount. It is much more profitable to hand over the entire refrigerator as scrap or old household appliances, for which some points pay a fixed amount per unit, or even get a free removal service.
If you have accumulated a battery of 10-20 such refrigerators, then organizing a mini-disassembly line becomes economically justified. In this case, Polyus becomes a source of raw materials for small businesses.
In addition, functional components Poles, such as thermostats, seals or even entire compressors, can cost more on the spare parts market than copper in them. Therefore, before disposal, assess the condition of the unit.
What to do with the oil from the compressor?
Used compressor oil should not be poured down the drain or onto the ground. It must be collected in a sealed container and taken to special collection points for hazardous waste or used oil.
In conclusion, Polyus refrigerator contains a significant amount of copper compared to modern technology, but mining this metal requires effort. The decision to disassemble should be made carefully, taking into account all factors.
FAQ: Frequently asked questions
Exactly how many kilograms of copper are in a compressor from Polyus?
On average, from one compressor of a Polyus refrigerator you can extract from 1.0 to 1.5 kg of copper. The exact quantity depends on the engine model (HK, FG) and year of manufacture. Some powerful motors can contain up to 1.8 kg.
Is it possible to return the entire Polyus refrigerator to non-ferrous metal?
No, collection points for non-ferrous metals usually do not accept entire household appliances. They require disassembly and sorting. The entire refrigerator is handed over as black scrap (scrap metal) or to specialized organizations for recycling electrical appliances.
Is there copper in the grille at the back of the refrigerator?
In most Polus models, the grille (condenser) is made of steel, painted black. There are no copper pipes there, they only fit to the compressor. Aluminum capacitors were less common in the Poles.
What is the price for copper from refrigerators in 2026-2026?
Prices for scrap copper are floating and depend on stock exchange quotes. Typically, copper of the "Mix" or "Gloss" category costs much more than ferrous scrap. It is better to find out the current price at the nearest collection point, as it changes weekly.
Is it dangerous to open the compressor yourself?
Yes, it is dangerous. There is oil inside the compressor which can cause irritation if heated or comes into contact with the skin. In addition, when sawing the body, metal shavings fly. Be sure to use safety glasses, gloves and a respirator.