Question about The content of precious and non-ferrous metals in household appliances often arises not only out of idle curiosity, but also in the context of recycling or scrapping equipment. Owners of old units, especially those of Soviet and post-Soviet production, such as Nord, often set out to understand whether the game is worth the candle. Refrigerators of this brand, produced at the Donetsk plant, were famous for their reliability, but their designs were massive, using a significant amount of metal.
The answer to the question of how much copper is in a Nord refrigerator is not an unambiguous constant and depends on the year of manufacture, model and the specific unit that you plan to remove. It is immediately worth noting that pure copper you will not find there in the form of ingots or windings weighing several kilograms, except for the compressor winding, access to which is extremely difficult.
The bulk of the “non-ferrous” metal is hidden in the heat exchangers of the cooling system. It is the condenser and evaporator that are of greatest interest to those involved in the processing of equipment. However, to get to this resource, you will need not just unscrew a couple of screws, but carry out a full, often irreversible disassembly disassembly of the unit.
Where exactly to look for non-ferrous metal in the structure
Before proceeding with dismantling, you need to clearly understand the anatomy refrigeration unit. In modern models, manufacturers are increasingly replacing copper with aluminum or copper-plated steel to reduce the cost of construction, but in classic models Nord the situation is different. The main source of copper here is the condenser grid located on the rear wall and the evaporator sealed inside the housing.
It is worth considering that the tubes can be made of steel with a thin coating of copper, which significantly reduces the yield of pure metal during remelting. You can visually distinguish a high-quality material from a bimetal by a cut or using a magnet, but the surest way is to analyze the weight and behavior of the metal during processing. Heat exchanger in old models it was often made entirely of copper tubes, which made them repairable, but now this is rare.
The second place in terms of copper content is occupied by the compressor. Inside this black “pot” there is an electric motor, the winding of which is made of copper. However, extracting this copper requires breaking the seal of the case and complex mechanical processing, which is practically impractical at home. The weight of the winding in compressors of household refrigerators usually ranges from 100 to 250 grams, which does not justify the investment of time and tools.
Also, a small amount of copper can be found in electrical wiring, start relays and thermostats, but these volumes are measured in grams and are not of commercial interest. The main focus should be on the refrigerant circulation system. It is there that up to 90% of all non-ferrous metal in the device is concentrated.
Factors influencing the amount of copper in different models
The amount of copper in the Nord refrigerator directly depends on the era in which it was made. The plant in Donetsk has been producing equipment for decades, and technologies have changed. Models released in the 80s and early 90s used thicker tubes and classic materials. Later, with the rise in price of raw materials and changes in market conditions, production optimization began.
An important factor is the type of cooling system. In single-compressor models with a drip defrosting system, the design of the circuit is simpler, and there is less copper there than in two-chamber units with a system No Frost. The latter use a more complex evaporator and often an additional defrosting circuit, which increases the total weight of the non-ferrous metals used.
The dimensions of the device also play a role. Tall three-compartment models or large-capacity refrigerator-freezers require longer lines to circulate the refrigerant. Consequently, in “high” Nords the copper yield will be higher than in compact models intended for installation in niches or small kitchens.
⚠️ Attention: Do not try to open the cooling system yourself if you do not have the skills to work with refrigeration equipment. Residual pressure and possible chemical reactions can be hazardous to health.
In addition, the weight is affected by the degree of corrosion. Old units that have been standing for a long time in damp areas may have oxidized tubes, the weight of which differs from the weight of pure metal. When scrapping, this is taken into account through the contamination factor, which reduces the final profit.
Algorithm for extracting copper from a heat exchanger
The process of extracting copper requires a consistent approach and the presence of a certain set of tools. You cannot simply pull the tubes out of the housing without damaging them and losing some of the metal in the form of shavings or scrap. The first step is always a complete disconnection from the power supply and defrosting.
Next, you should dismantle the back panel, behind which the capacitor grille is hidden. In models Nord it is often attached to a metal sheet or glued to the back wall of the case. By carefully disconnecting the tubes from the compressor (usually they are soldered), you can remove the entire assembly.
☑️ Preparation for dismantling
The most labor-intensive stage is separating copper tubes from steel or aluminum plates (ribs), if any. In older refrigerators, the tubes could simply be inserted into grooves; in newer ones, they were glued or welded. To extract pure metal, you often have to saw the structure, separating the non-ferrous metal from the ferrous elements.
If you plan to remove copper from the evaporator, which is located inside the freezer, you will have to cut the inner plastic or metal box. This turns the refrigerator into illiquid stock for further use, so such actions are justified only with complete disposal.
Table of approximate copper yield
To understand the scale, it is advisable to refer to averaged data. Of course, weighing each individual specimen will give a more accurate result, but general patterns can be clearly seen. Below is the data for typical models found on the CIS market.
| Model / Type | Years of production | Heat exchanger type | Approximate weight of copper (kg) |
|---|---|---|---|
| Nord-205 (single-chamber) | 1985-1995 | Coated steel / Copper | 0.3 - 0.5 |
| Nord-232 (double-chamber) | 1990-2000 | Copper tubes | 0.6 - 0.9 |
| Nord-241 (No Frost) | 2000-2010 | Aluminum + Copper | 0.4 - 0.7 |
| Nord-292 (large size) | 1995-2005 | Copper (capacitor) | 0.8 - 1.2 |
As can be seen from the table, even in the “richest” models we are talking about kilograms, and not tens of kilograms. Metal yield rarely exceeds 1-1.2 kg even including the compressor, if you disassemble it completely. The main mass consists of case steel and ferrous metals.
It is also worth noting that in modern models released after 2010 under the Nord brand, the copper content may be even lower due to the active use of aluminum in cooling circuits. Aluminum is lighter and cheaper, but its cost at delivery is much lower.
Why is there less copper in new models?
Modern energy efficiency and environmental standards dictate the use of thinner tubes and alternative materials. In addition, copper has become too expensive a resource for mass production of budget equipment.
Economic feasibility and recycling
Is the game worth the candle? This question arises before everyone who picks up a grinder or a hacksaw. The market value of copper scrap is high, but it is only relevant for clean, sorted metal. A mixture of copper with steel, solder and insulation is estimated to be much cheaper, often at the price of a “mix” or even ferrous scrap.
If you hand over the entire refrigerator to scrap metal collection points, it is weighed as ferrous metal (steel), but with an increasing factor for the presence of non-ferrous inclusions. In this case, you don't need to disassemble anything and you save time. If your goal is to maximize profits, then disassembly makes sense only if you have a large volume of equipment (10-20 pieces or more).
For one refrigerator, the time required for careful dismantling, cleaning the tubes from insulation and sorting can be several hours. At current prices for scrap, the profit from one unit may not even cover the cost of electricity spent on operating a power tool, not to mention the depreciation of the tool.
In addition, it is important to remember about environmental responsibility. The refrigerants contained in the system, when released into the atmosphere, destroy the ozone layer. Professional recycling points have equipment for the safe selection of freon, which artisanal disassembly methods lack.
Safety precautions during disassembly
Working with metal and old electrical appliances carries certain risks. The sharp edges of sheet metal used in enclosures Nordcan cause serious cuts. The use of thick gloves and safety glasses is a mandatory requirement.
When cutting tubes, especially if there is still pressure or oil in the system, technical fluids may splash. Some old oils and coolants can be toxic if heated or in contact with skin. Work should be done in a well-ventilated area or in the open air.
⚠️ Attention: It is strictly forbidden to heat closed areas of the cooling system with open fire. Residual coolant may ignite or create an explosive mixture with air.
Power tools used for cutting and stripping must be in good working order. When working with a grinder or a hacksaw, there is a risk of particles of insulation or rust flying into your eyes. Do not neglect personal protective equipment.
Frequently asked questions (FAQ)
Is it possible to determine the amount of copper by the weight of the refrigerator?
An exact determination is impossible, since the bulk is steel and plastic. However, knowing the model, we can assume the type of materials used. Heavy Soviet models often contained more non-ferrous metals in their components than light modern analogues.
Is there gold or silver in the Nord refrigerator compressor?
Precious metals are practically not used in household refrigerators. Relay contacts may contain silver in microscopic quantities, but their extraction is not economically feasible and technically difficult at home.
What to do with the remaining oil after draining from the system?
Technical oil from the compressor is waste and must be specially disposed of. Pouring it into the sewer or the ground is prohibited by environmental regulations. Take it along with other technical fluids to collection points.
Does the presence of the No Frost system affect the amount of copper?
Yes, it does. No Frost systems use a more complex evaporator and often additional heaters, but the tubes may be thinner. The overall balance shifts towards aluminum, while copper remains mainly in the condenser and compressor.