The question of how much copper is contained in ZIL refrigeratormost often arises among those who plan to sell old Soviet equipment for scrap or are trying to restore a failed unit. Despite the fact that modern refrigerators are almost devoid of this metal, non-ferrous metals were used quite actively in models produced during the Soviet period. The main accumulation of copper is concentrated in compressorwhich is the heart of the entire cooling system.
The exact weight depends on the specific model, year of manufacture and configuration, but the average values are known to experienced scrap acceptors. It is important to understand that simply weighing the entire refrigerator is not enough, since the main mass is steel, which costs much less. To obtain maximum benefits or accurate technical data, a detailed analysis of components and, often, disassembly devices into components is required.
It is worth noting that in older models, copper elements were more common than in later modifications. Capacitors and evaporators in some versions could also be made of non-ferrous metal, but this is rare for household ZIL refrigerators. The main attention should be paid to the electric motor compressor, where the winding is traditionally made of high quality copper.
⚠️ Attention: When disassembling the refrigerator for scrapping, follow safety precautions. Old compressors may contain technical oil, which is prohibited from being discharged into the sewer or onto the ground. Dispose of waste only in specially designated areas.
Structure and composition of Soviet ZIL refrigerators
Brand refrigerators ZIL, produced at the ZIL-KSh plant (formerly the Moscow Refrigerator Plant), were famous for their reliability and maintainability. The design of these units is fundamentally different from modern analogues. The main body, shelves and doors are made of sheet metal with an enamel coating, which makes them heavy and durable. However, the internal structure is of interest for the extraction of non-ferrous metals. steel with an enamel coating, which makes them heavy and durable. However, the internal structure is of interest for the extraction of non-ferrous metals.
A typical ZIL refrigerator includes the following components that potentially contain non-ferrous metals:
- 🔹 Compressor —a sealed block containing an electric motor with copper winding.
- 🔹 Pipelines - connecting elements of the system (most often steel, but there are also copper inserts).
- 🔹 Electrical wiring - power and control cables containing copper cores.
- 🔹 Capacitor —grid on the back wall (in old models it could be copper, in new ones it could be steel).
It is compressorthat gives the highest copper output. Soviet models used units with high reliability indicators, where they did not save on winding. The weight of the compressor itself varies from 8 to 12 kg, but it contains only part of copper. The rest is steel, cast iron and oil. To accurately determine potential income, you need to know how to correctly extract and separate these components.
Why is there no copper in modern refrigerators?
In modern models, manufacturers are actively replacing copper with aluminum due to the high cost of the former metal. Aluminum windings and tubes are cheaper, but less durable and less susceptible to repair.
Compressor analysis: where to look for copper
The compressor is the main source non-ferrous metal in any refrigerator, and ZIL is no exception. Inside the sealed housing there is an electric motor, the rotor of which is wound with copper wire. The weight of this winding directly depends on the power of the engine and the year of its production. On average, the compressor of a ZIL refrigerator contains from 100 to 300 grams of pure copper, if we consider only the winding.
However, if we consider the compressor as a unit for scrapping as a whole, the classification changes. Receiving centers often price compressors in the “electric motor” or “micromotor” category, where the price is higher than for ferrous metal, but lower than for pure copper wire. If you are planning an independent cutting, then you will have to open the housing, drain the oil and cut out the stator with the winding.
The table below shows approximate data on the copper content in compressors of various models, often installed on ZIL refrigerators:
| Compressor model | Compressor weight (kg) | Approximate copper weight (g) | Winding type |
|---|---|---|---|
| XK 1050-1 | 10.5 | 180-220 | Copper |
| FG 100 | 11.2 | 200-250 | Copper |
| QD 35 (analog) | 9.8 | 150-190 | Copper/Aluminium* |
| NBK 110 | 12.0 | 230-280 | Copper |
*Note: In later models or Chinese analogues installed during repairs, the winding can be made of aluminum, varnished, which visually resembles copper. You can check the metal using a magnet (copper is not magnetic, but neither is aluminum, so it is better to make a notch or use a chemical reagent). In the original Soviet compressors, ZIL was used exclusively. Make the cut along the perimeter of the weld, retreating 1-2 cm from the edge so as not to damage the internal winding. copper.
Pipelines and heat exchangers
The second element, which theoretically can contain copper, is the pipeline system. In the classic refrigerator circuit, freon circulates in a closed circuit. In Soviet technology it was often used steel for discharge and suction tubes, as it is stronger and cheaper. However, copper or brass could be used at joints, in capillary tubes and sometimes in evaporators.
The condenser located on the rear wall, in most ZIL models, is a steel grille painted black. Copper capacitors were found in very old models or in specific industrial series, but for household ones ZIL refrigerators this is rather an exception. If you come across a model with a copper coil, its weight can be from 0.5 to 1.5 kg, which significantly increases the overall value of the scrap.
To remove the tubes you need to:
- 🔹 Cut the tubes with wire cutters or saw through with a hacksaw.
- 🔹 Carefully pull the coil out of the thermal insulation (polyurethane foam).
- 🔹 Clean the metal from any remaining insulation and paint.
⚠️ Attention: Refrigerant vapor may remain in the refrigerator system. Although older models used safe Freon R12, which does not burn, it is not recommended to release it into the atmosphere for environmental reasons. In addition, when heating copper tubes with a blowtorch, residual oil can ignite.
Disassembly technology to obtain scrap
The process of obtaining copper from a ZIL refrigerator requires time, tools and compliance with safety measures. Simply smashing the body with a sledgehammer is ineffective and dangerous. For high-quality sorting metal, the following algorithm of actions is required. First, the door is removed, plastic elements, shelves and internal lining are removed.
Next, the compressor is removed. It is usually attached to the frame with four bolts through rubber shock absorbers. After disconnecting the electrical wires and tubes, the compressor is removed. The next stage is opening. The compressor housing is cut and the stator is removed. The copper winding can be burned out (which deteriorates the quality of the metal) or bitten off with pliers, freeing it from the core.
☑️ Checklist for safe disassembly
Pipelines are cut to the maximum possible length. If they are frozen into the walls of the refrigerator (evaporator), removal may be difficult. In such cases, it is often easier to hand over the entire node, since extraction efforts may not pay off. Remember that purity of scrap directly affects the price: the less steel, rubber or insulation left on the copper, the higher the acceptance rate.
Economic feasibility and prices for scrap
Is the game worth the candle? To answer this question, you need to consider the current prices for non-ferrous scrap metals. The price copper (mix, piece, burnt) significantly exceeds the cost of black steel. However, given the low yield of copper from one unit, handing over one refrigerator for 200 grams of metal is economically pointless if you value your time.
Profitability appears when processing a batch of 10-20 units of equipment. In this case, the efforts to cutting and sorting are paid off by the difference in price between ferrous and non-ferrous scrap. It also makes sense to disassemble refrigerators if you already have the necessary equipment and free time, which would otherwise be spent ineffectively.
Factors influencing the final profit:
- 🔹 Volume lot —the more units, the higher the total weight of copper.
- 🔹 Condition of the metal —pure annealed copper is more expensive than contaminated copper.
- 🔹 Region —in areas remote from processing plants, scrap prices may be lower.
Environmental aspects and disposal
Disassembling refrigerators is not only a way to make money, but also an environmental issue. Old units contain substances that, if not disposed of correctly, are harmful to the environment. Thermal insulation from polyurethane foam emit toxic substances when burned. Compressor oil is a petroleum product and pollutes the soil.
By handing over the refrigerator to specialized collection points or calling a recycling service, you guarantee that hazardous components will be neutralized by professionals. If you do disassembly on your own, (be sure to) take care of proper waste disposal. The metal is sent for remelting, plastic for granulation, and hazardous liquids for neutralization.
In modern conditions, the tendency is that manual disassembly is becoming less popular due to the complexity and labor-intensiveness of the process. Processing plants use automated lines that crush machinery and separate fractions. However, for enthusiasts and small workshops manual cutting remains relevant, allowing you to obtain the purest recyclable materials.
⚠️ Attention: Legislation in the field of waste management may change. Before starting commercial activities for the collection and disassembly of refrigerators, check the need to obtain a license for handling waste of I-IV hazard classes in your region.
Frequently asked questions (FAQ)
Exactly how many kilograms of copper can be obtained from one ZIL refrigerator?
On average, from one Soviet refrigerator ZIL manages to obtain from 0.15 to 0.3 kg (150-300 grams) of pure copper. The main source is the compressor winding. The pipelines are often steel, but if you come across a model with a copper capacitor, the output can increase to 1-1.5 kg, although this is rare.
Is it possible to hand over the entire compressor without opening it?
Yes, many scrap metal collection points accept entire compressors. However, they will not be priced as pure copper, but as an “electric motor” or “micromotor”, the price for which is lower than for copper wire, but higher than for black steel. It is beneficial to open the compressor only if you have a large number of units and tools.
Is there aluminum in the ZIL refrigerator?
Yes, aluminum is found in the ZIL refrigerators. Some elements of the evaporator (inner chamber in the freezer), fan blades (if any) and decorative elements can be made from it. However, it is the copper winding of the motor that is of the main value.
Is it dangerous to open an old compressor?
Yes. There may be compressed gas and corrosive oil inside. When sawing, sparks can ignite oil vapors. In addition, when the winding is burned out, acrid smoke is released. You need to work in a well-ventilated area, wearing gloves and safety glasses.