The question of how much copper is contained in a ZIL refrigerator most often arises among those who plan to recycle old household appliances or are engaged in the delivery of non-ferrous metals. Soviet units produced at the Likhachev plant were famous for their margin of safety and the use of high-quality, heavy materials. Unlike modern lightweight models, the body and internal components of old ZIL refrigerators contain a significant amount of valuable resources, which makes them attractive for recycling.
However, when answering the question about copper content, it is important to immediately clarify: the bulk of the metal in the structure is black steel, used for the body and doors. Non-ferrous metal is concentrated mainly in the compressor motor, condenser and partly in the evaporator. Understanding the exact distribution of materials is necessary to correctly estimate the weight of scrap and plan the dismantling process, which requires certain skills and tools.
For the owner of old equipment, it is important to know that copper extraction is a labor-intensive process and is not always economically justified for a single delivery. However, knowledge of the internal structure helps to correctly assess the value of the unit when selling it for scrap or when deciding to restore it. Next, we will analyze in detail where exactly to look for non-ferrous metal and what its actual weight is in various models.
Distribution of non-ferrous metals in the ZIL designThe design of the Soviet ZIL refrigerator is based on the use of reliable but heavy materials. If you are planning disassembly, you should be guided by the fact that the main volume is occupied by steel. Copper is a strategic resource hidden inside the components, and its quantity directly depends on the power of the compressor and the year of manufacture of the model. In earlier versions, more non-ferrous metal was used, while in later models, manufacturers began to optimize costs.
The main source of copper is the compressor motor winding. This is where the purest and most expensive wire is found. The secondary source is the heat exchanger (condenser), which in older models was often made of copper tubing, although in later versions it could be made of steel or aluminum. The evaporator inside the chamber may also contain copper, but more often in ZILs steel or aluminum was found, which reduces the overall yield of the precious metal.
⚠️ Attention: When estimating the weight, keep in mind that the outer tubes may be coated with paint or oxide, which visually masks the material. Do not confuse steel with copper-plated wire or brass fittings, the price of which is much lower.
To accurately understand the weight structure, it is useful to consider the following facts:
- 🔸 Compressor is the main “storage” of copper, accounting for up to 80% of the total volume of non-ferrous metal in the unit.
- 🔸 Pipelines can be made of copper only in a high-pressure system, while the rest is often steel.
- 🔸 Case weight ZIL refrigerator can reach 60-70 kg, but it contains only a small proportion of copper, about 1-2 kg.
Compressor: the main source of valuable scrapThe heart of the ZIL refrigerator is a piston compressor, which in Soviet times was distinguished by high maintainability and a large supply of metal. Inside the sealed casing there is an electric motor, the stator of which is wound with copper wire. It is this winding that is of greatest interest to scrap buyers. The weight of copper in a compressor varies depending on its volume and performance, but on average it ranges from 1 to 1.5 kg of pure metal.
The process of extracting copper from a compressor requires opening the sealed housing, which cannot be done without damaging the winding. Therefore, when delivered to collection points, the compressor itself is often assessed as a unit that has a certain category of complexity. If you plan to hand over the entire vehicle, the inspector will estimate the average percentage of copper content in the engine without opening it. However, when cutting yourself, it is important to know that the output of the finished wire after removing the insulation and varnish will be approximately 70-80% of the weight of the winding assembly.
Technical details of the winding
Inside the stator there is a coil consisting of many turns of thin copper wire coated with varnish. The weight of this coil in ZIL engines can reach 1.2 kg, but during melting, part of the metal is lost due to oxidation and varnish coating.
It is important to note that not the entire compressor consists of copper. A significant part of its weight is made up of steel core plates and a heavy cast iron or steel body.
- 🔹 The stator contains the bulk of copper wound in the grooves.
- 🔹 The rotor also has copper elements, but in smaller quantities compared to the stator.
- 🔹 Case is made of steel and has no value as a non-ferrous metal.
Heat exchangers and pipelines: where to look for copperIn addition to the compressor, the second potential source of copper in the ZIL refrigerator is the pipeline system. In classic models such as ZIL-63 or ZIL-130, the capacitor was often made in the form of a coil mounted on the rear wall. Depending on the year of manufacture, the material of the tubes could change. In higher quality and earlier series, copper was used, which provides excellent heat transfer and heat transfer. In later models, in order to save money, the manufacturer could switch to steel tubes with an anti-corrosion coating.
The evaporator, located inside the refrigeration chamber (often this is the back wall or a separate box in the freezer), in most ZIL models was made of sheet steel or aluminum. Finding copper there is almost impossible. Therefore, if you are counting on a large metal output, the main focus should be on the external condenser tubes and connecting lines coming from the compressor.
It is worth considering the condition of the tubes when handing over.
- 🔸 Oxidized and blackened tubes lose weight due to corrosion and contamination.
- 🔸 Tubes with residues oils require additional cleaning before weighing.
- 🔸 Brass fittings and taps also contain copper, but they are alloys with a lower cost.
Table of the weight of copper in various ZIL modelsFor a clearer assessment of the potential yield of non-ferrous metal, we present data on popular models of ZIL refrigerators. These figures are averages, as the design may have changed slightly over a long period of production. The weight is indicated for pure metal, which can be obtained after complete disassembly and removal of insulation.
| Refrigerator model | Compressor type | Approximate copper weight (kg) | Capacitor material |
|:--- |:--- |:--- |:--- |
| ZIL-63 | Piston, low temperature | 1.2 - 1.4 | Copper / Steel (depending on the year) |
| ZIL-130 | Piston, two-chamber | 1.4 - 1.6 | Mainly copper |
| ZIL-140 | Piston, with No Frost (rare) | 1.5 - 1.8 | Copper |
| ZIL-MHM-120 | Piston, small-sized | 0.9 - 1.1 | Steel / Aluminum |
When analyzing the table, it is clear that more powerful and larger models contain more non-ferrous metal. However, even in the “richest” models, the share of copper in the total weight of the product is small. The bulk of the mass is still the body steel, insulating materials and plastic.
The process of disassembling and extracting metalIf you decide to disassemble the ZIL refrigerator yourself to obtain copper, you will need a set of tools and compliance with safety precautions. The process begins with dismantling external elements: doors, shelves and plastic decor. Then you should get to the compressor, which is usually located in a niche at the lower rear of the unit. To remove the winding, the compressor must be opened, which is easiest to do with a grinder or a hacksaw, cutting the housing along the equator.
☑️ Action plan for disassembly
After removing the stator coil, copper wire is often burned to remove varnish insulation, however, this method is environmentally hazardous and may be prohibited rules for scrap delivery in your region. Reception points can accept windings in unprocessed form, but with a markdown for the presence of insulation. The condenser tubes are cut off from the steel grid if it is steel, or handed over entirely if the entire coil is copper.
⚠️ Attention: When sawing the compressor, use a respirator. There may be used refrigeration oil inside, the vapors of which are harmful to health. Also beware of sharp metal edges.
Economic feasibility and scrap deliveryIs the game worth the candle? This question is often asked by owners of old equipment. The price of copper scrap fluctuates (fluctuates) depending on stock exchange quotes and demand in the region. Currently, the cost of purified copper is significantly higher than mixed scrap or insulated electrical copper. However, if you take into account the labor costs of disassembling one ZIL refrigerator, the net profit may be small if you only have one unit.
It’s another matter if you are recycling a batch of equipment or have access to several refrigerators. In this case, the total yield of copper can amount to a significant amount. In addition, by handing over the entire refrigerator, you get rid of the problem of disposing of bulky waste, which also has its value. Reception points often offer removal services, which saves your effort.
To increase the profitability of the process, it is recommended:
- 🔹 Hand over copper separately from brass and bronze, since their prices differ.
- 🔹 Clean copper from dirt, oil and solder to obtain the "Shine" category or "Mix".
- 🔹 Look for specialized collection points where the price is higher than in general scrap metal points.
FAQ: Frequently asked questions
How much does copper cost from one ZIL refrigerator?
The cost depends on current prices in your region and the weight of the extracted metal. On average, from one compressor and tubes you can get copper worth an amount equivalent to the cost of lunch in a cafe, if you donate it in purified form. You can find out the exact amount by weighing the scrap and multiplying it by the current purchase rate.
Is it possible to hand over an entire ZIL refrigerator without disassembling it?
Yes, most scrap metal collection points accept entire refrigerators. However, in this case, they will evaluate it as “scrap ferrous metals” or “household appliances” with a reduced coefficient, since they do not see the internal content of non-ferrous metals. Disassembly is only beneficial if you are willing to spend time and have the tools.
Is there gold or silver in the ZIL refrigerator?
In household ZIL refrigerators there are no precious metals (gold, silver, platinum) in quantities significant for extraction. They can be contained in microscopic doses in the contacts of a relay or thermostat, but their extraction at home is impossible and economically infeasible. The main value is copper and, to a lesser extent, aluminum.
What is the difference between copper in old ZIL and modern technology?
In old Soviet ZIL refrigerators, thicker and higher quality copper wire with a minimum amount of impurities was used. Modern units often use aluminum or copper-plated steel, and the copper itself in motors can be thinner. Therefore, old models are valued more highly by processors.