The question of how much copper is contained in Soviet-made refrigeration equipment often arises among those who sell non-ferrous scrap or try to estimate the residual value of old equipment. Refrigerators of the brand Ocean, produced in different years at different factories (for example, in Baku, Minsk or Ordzhonikidze), were structurally significantly different from modern models. Their internal structure was designed for durability and maintainability, which implied the use of a significant amount of high-quality non-ferrous metals.
Many mistakenly believe that copper is only in visible tubes, but the main supply of this precious metal is hidden inside sealed units. Weight of copper in the Ocean refrigerator directly depends on the year of manufacture of a particular model and type of compressor installed. Earlier versions used heavy piston units with powerful windings, while later modifications could be equipped with lightweight units. Understanding these nuances allows you to avoid mistakes when assessing scrap.
It is important to consider that weight data may vary depending on the specific modification and year of assembly of the device. Specifications varied depending on the availability of materials at the manufacturing plant. Below we will analyze in detail where exactly to look for non-ferrous metal and how much of it can be obtained by completely disassembling the unit.
Design features of Ocean refrigerators
Refrigerators Ocean represent a classic example of Soviet engineering, where reliability was placed above saving materials. Unlike modern units, where aluminum and steel are actively used, copper was used everywhere in these models. The main source of non-ferrous metal is the compressor, which in older models weighed significantly more than modern analogues. Motor-compressor in such refrigerators they often had a starting winding made of pure copper, which is highly valued during processing.
In addition, The refrigerant circulation system in refrigerators Ocean was often made of copper tubes, especially in the evaporative part. In newer models, the tubes could be steel with a copper coating or all aluminum, but the classic "Oceans" were famous for their copper coils. This made them more expensive to repair, but provided excellent thermal conductivity and corrosion resistance. When disassembling, it is important to carefully separate copper elements from steel ones so as not to reduce the cost of scrap.
It is worth noting that the weight of copper also depends on the presence of additional components such as door heaters or complex defrost systems, which could also contain copper wire. However, the main mass is made up of the motor winding and heat exchanger tubes. Differences in weight between models of different years of production can reach 20-30%, so the exact figure can only be given after weighing or a detailed examination of a specific instance.
⚠️ Attention: In different modifications of Ocean refrigerators, compressors from different manufacturers (for example, Biryusa or Atlant) could be installed, which directly affects the amount of copper in the winding. Always check the nameplate on the unit.
Where is copper located in old models
Searching for non-ferrous metal in the refrigerator Ocean requires sequential disassembly of the unit. The first and most obvious place is the back wall where the capacitor is located. In older models, the radiator grille was often made of steel tubes, but connected to the system with copper pipes. The main concentration of copper is located inside the black compressor casing, which is hermetically sealed.
The second important unit is the evaporator, located inside the freezer or refrigerator compartment. Depending on the year of manufacture, it could be a copper tube soldered to aluminum plates, or a solid copper coil. Heat exchanger in Soviet refrigerators it was often made with a margin of safety, so the thickness of the walls of the tubes made it possible to withstand high refrigerant pressure. When removing the evaporator, it is important not to damage the tubes in order to preserve their weight and scrap category.
The third source, which is often forgotten, is the electrical wiring and start relay. Although the weight of copper in the wires is small compared to the compressor, the purity of this metal is high. The start relay contains contacts made of silver or copper alloys, as well as a coil. When disassembling the electrical part, you should carefully separate the insulation in order to obtain the purest possible metal at the output.
Hidden places of copper content
In some Ocean models, copper inserts were used in thermostats and temperature sensors, but their weight is so small that it makes no practical sense to take it into account when assessing scrap overall.
Weight of copper in compressor and pipes
The most powerful argument in evaluating a refrigerator Ocean is the compressor. It is this that contains the bulk of copper in the form of stator windings. On average, the weight of the winding in the compressor of an old refrigerator is from 300 to 700 grams, depending on the engine power. However, the total weight of the compressor assembly can reach 10-12 kilograms, most of which is steel.
The tubes connecting the units also contribute. If a copper line is installed in the refrigerator, its length can reach several meters. The weight of a linear meter of copper tube depends on the diameter, but in total the tubes can account for another 1-2 kilograms of metal. Copper tubes High pressure tubes are thicker and heavier than low pressure tubes, which should also be taken into account when sorting.
For clarity, we present data on the distribution of copper weight in a typical Ocean refrigerator depending on its components. These data are averages, since the exact specifications of the manufacturing plants of that time could vary.
| Refrigerator assembly | Type of metal | Approximate weight (grams) | Comment |
|---|---|---|---|
| Winding compressor | Copper (winding) | 300 - 700 | Depends on motor power |
| Condenser tubes | Steel/Copper | 0 - 500 | In older models, more often copper |
| Evaporator | Aluminium/Copper | 200 - 800 | Often brass or alloy |
| Electrical and wires | Copper | 100 - 200 | Pure electrical copper |
As can be seen from the table, the main interest for the dealer is the internal filling of the compressor and the evaporator tube. The remaining elements give a lower metal yield, but in total they can also amount to a kilogram of more valuable raw materials.
Differences in models and years of production
Refrigerators Ocean have been produced for several decades, and during this time technology has undergone changes. Early models, released in the 60-70s, were distinguished by the maximum content of non-ferrous metals. At that time, copper shortages were not such an acute problem as later, so engineers did not skimp on materials. Soviet refrigerators of that period they often had all-copper evaporators and thick-walled tubes.
B The 80s and early 90s began a trend towards replacing copper with aluminum and steel. This was dictated by economic factors and cheaper production. Therefore, in later Ocean models you can find aluminum tubes, which may look like copper, but have significantly less weight and cost. You can determine the material by the color of the cut and weight: aluminum is much lighter and does not have a characteristic reddish tint.
It is also worth considering the manufacturing plant. Baku refrigerators could differ from Minsk or Ordzhonikidze ones in components. Sometimes compressors of different series were installed on the same brand, which brought chaos to the copper weight statistics. Therefore, when evaluating a batch of scrap, it is better to proceed from the minimum indicators so as not to go to a loss. Ocean Compressors of different series were installed, which brought chaos to the statistics on the weight of copper. Therefore, when evaluating a batch of scrap, it is better to proceed from the minimum indicators so as not to go to a loss.
The process of extracting and sorting metal
In order to obtain copper from the Ocean refrigerator, it is necessary to carry out a series of dismantling works. First, the device is disconnected from the network and defrosted. Then the back panel is removed and the compressor is unscrewed. To remove the winding, the compressor must be opened, which requires the use of a grinder or a hacksaw. This is a labor-intensive process that requires compliance with safety precautions.
The tubes are cut with wire cutters or a pipe cutter. It is important to separate metals immediately at the dismantling stage. Sorting scrap significantly increases its final cost. Copper of the "Mix" category is cheaper than pure "Gloss Copper" or "Tinned Copper". Therefore, try to separate tinned contacts and solders from pure copper.
When working with a compressor, remember that there may be oil inside, which must be drained into a separate container. Oil disposal is also an important environmental issue. After opening the casing, the core is removed, from which the winding is cut off or burned out. Burning insulation in the open air is prohibited and harms the quality of the metal, causing it to burn out.
☑️ Safe disassembly of the refrigerator
Economic feasibility and price of scrap
The cost of scrapping the Ocean refrigerator depends on current quotes for non-ferrous metals. At the time of writing, the price of copper remains high, making dismantling old units economically feasible if you have access to free raw materials. However, if you are buying a refrigerator specifically for scrapping, you need to make a careful calculation.
It is necessary to subtract from the potential revenue the costs of transport, electricity for tools and, most importantly, the time spent on disassembly. Profitability such a business is often in volume: disassembling one refrigerator can take 30-60 minutes, and the copper yield will be about 1-1.5 kg. For large volumes (for example, recycling a batch of equipment), this becomes a profitable enterprise.
It is also worth considering that in addition to copper, the refrigerator contains steel, aluminum and plastic, which are also accepted by scrap metal points, albeit at lower prices. The steel body makes up most of the weight of the unit, but its price is low. Therefore, the main profit is formed precisely due to “non-ferrous metal”.
⚠️ Attention: Prices for scrap non-ferrous metals fluctuate (fluctuate) daily. Before handing over the batch, be sure to check the current price list in your region, since acceptance conditions may differ depending on the purity of the metal.
Safety precautions during disassembly
Disassembling a refrigerator Ocean is associated with certain risks. Firstly, refrigerant (freon) may remain in the circulation system. Although older models used relatively safe gases, in high concentrations they can displace oxygen. In addition, when insulation is burned or tubes are heated, toxic substances can be released.
Secondly, working with cutting tools requires caution. The grinder used to open the compressor creates sparks and metal shavings. Safety glasses and thick gloves are a must-have item of equipment. Getting shavings into your eyes or cuts from sharp metal edges is a common injury from careless work.
Thirdly, old refrigerators may contain asbestos gaskets or insulation, the dust from which is harmful to the lungs. You should work in a well-ventilated area or outdoors, preferably wearing a respirator. Following these simple rules will preserve your health.
What to do with freon?
In a domestic environment, it is safest to simply let the refrigerator stand unplugged in a ventilated place for several days so that the remaining gas evaporates before sawing the pipes.
Exactly how many kilograms of copper are in Ocean compressor?
On average, from one Ocean refrigerator compressor you can get from 300 to 700 grams of pure copper in the form of a winding. The exact weight depends on the year of manufacture and engine power. Heavy Soviet engines contain more metal than later models.
Is it possible to return the entire Ocean refrigerator?
Yes, many collection points accept entire refrigerators as ferrous scrap or household scrap, but the price per kilogram will be significantly lower than for cut copper and aluminum. Whether it is profitable is up to you to decide based on the time spent on disassembly.
What is the difference between copper and brass in tubes?
Copper has a reddish-golden color and is soft. Brass (an alloy of copper and zinc) is yellower and harder. In Ocean refrigerators, the tubes are most often made of copper or steel; brass can be found in fittings and adapters.
Is it dangerous to open the compressor yourself?
The main danger is the possible presence of residual pressure and oil, as well as the risk of injury from the sharp edges of sawn metal. If there is freon left in the system, it may expand when heated. It is recommended to carry out work outdoors.
Does the year of manufacture affect the amount of copper?
Yes, directly. Refrigerators produced in the 60-70s contain significantly more copper in windings and tubes than models of the 80-90s, where they began to actively use aluminum and copper-coated steel to reduce the cost of construction.