How much copper is in the refrigerator engine: accurate calculation using models and methods of scrap mining

Have you ever wondered why old refrigerators are so actively dismantled for scrap? It's all about compressor —the cardiac motor of the unit, inside which valuable copperis hidden. But how much is there really? Is it worth spending time on disassembling, or is it more profitable to hand over the refrigerator entirely?

In this article we will look into how much copper is contained in the motors of different refrigerators (from Soviet ZIL to modern ones LG i Samsung), how to extract it correctly, and how much this process will cost in time and effort. And you will also find out which compressors give the maximum profit when scrapping - up to 3 kg of copper in one motor! Spoiler: not all engines are equally useful.

If you are planning to start recycling refrigerators or just want to get the most out of old equipment, read on - there are no general phrases here, only specific numbers, diagrams and calculations.

1. Why is there so much copper in the refrigerator - and where to look for it

Copper in the refrigerator is concentrated in three key components:

• 🔹 Compressor winding - the main source (up to 90% of all copper scrap). These are thick wires in varnish insulation, wound on the engine stator.
• 🔹 Cooling circuit tubes - thin copper capillaries through which freon circulates. Their weight rarely exceeds 200–300 grams.
• 🔹 Start relay and capacitors contain small copper parts (contacts, windings), but their share is tiny (5–10 grams).

The main “treasure” is compressor. Depending on the model of the refrigerator, its winding can weigh from 500 grams up to 3 kg. At the same time, the copper here is of high quality (purity 99.5–99.9%), which is valued at collection points.

But not all compressors are equally profitable. For example, in old Soviet refrigerators ("Minsk", "ZIL", "Biryusa") there is more copper than in modern inverter models. Why? The point is in the design:

• 🔧 Piston compressors (until the 2000s) - massive windings, thick wires, copper weight 1.5–3 kg.
• 🔧 Inverter compressors (after 2010) - compact, with thin windings, copper weight 300–800 grams.

2. Table: How much copper is in the compressors of popular refrigerators

We analyzed data on 50+ refrigerator models and compiled a table with real copper winding weights. The figures are approximate (±10%), since the weight depends on the modification of the compressor and the year of manufacture.

As can be seen from the table, Soviet refrigerators are 3-5 times more profitable than modern ones. by copper content. For example, a compressor from "ZIL-62" can give up to 2.8 kg of copper, while an inverter motor from LG is only 0.5 kg.

But there is a nuance: in old refrigerators, copper is often oxidized or covered with a thick layer of varnish, which complicates its cleaning. Modern windings are cleaner, but they are lighter in weight.

3. How to extract copper from a compressor: step-by-step instructions

Before you start, remember: the compressor is under pressure! Even if the refrigerator is not working, freon or oil may remain inside.

⚠️ Attention: Never cut the compressor with a grinder or welding machine - this can lead to an explosion! Use only cold disassembly methods.

You will need:

• 🔧 Set of screwdrivers (flat, Phillips).
• 🔧 Pliers and wire cutters.
• 🔧 Metal hacksaw (for cutting the body).
• 🔧 Hammer and chisel (for careful opening).
• 🔧 Protective equipment: gloves, goggles, respirator (dust from insulation is toxic!).

Step 1. Removing the compressor

The compressor is located at the back of the refrigerator in the lower part. It is mounted with 3-4 bolts and connected to a pipe system. Aktions:

1. Disconnect start relay (black box with wires).
2. Cut the tubes with wire cutters 10–15 cm from the compressor.
3. Unscrew the mounting bolts and remove the compressor.

Step 2. Opening the housing

The compressor housing is sealed. To get to the winding:

1. Drain the oil through the freon filling hole (usually closed with a plug).
2. Use a hacksaw to carefully saw the body along the seam (without touching the internal parts!).
3. Use a chisel and hammer to separate the halves.

Step 3. Removing the copper winding

Inside you will see:

• 🔄 Stator —a ring with wound copper wire.
• 🔄 Rotor —a moving part with a shaft.

The winding is attached to the stator. You need to:

1. Carefully pry it up with a screwdriver and remove it from the grooves.
2. Cut the wires connecting the winding to the terminals.
3. Remove the varnish (you can burn it over an open fire or soak it in a solvent).

What to do if the winding is stuck?

If the wire does not separate from the stator, try heating it with a hair dryer (up to 200°C). The varnish will soften and the copper will be easier to remove. Do not use open fire - it is dangerous!

Step 4. Cleaning copper

Pure copper is more valuable. Remove:

• 🧹 Varnish - burn the winding on a metal sheet (in the open air!).
• 🧹 Remains of insulation - soak in acetone for 1-2 hours.
• 🧹 Oxides - wipe the wire with vinegar or lemon juice acid.

Finished copper should be red colorwithout black or green spots (signs of oxidation).

4. How much can you earn on copper from the refrigerator

Profit depends on three factors:

1. Weight of copper (see table above).
2. Scrap prices (ranges from 600 to 900 ₽/kg in 2026).
3. Disassembly costs (time, tools, transport).

Let's calculate the income using the example of a compressor from "ZIL-62":

• 💰 Copper weight: 2.5 kg.
• 💰 Price per kg: 700 ₽ (average for Russia).
• 💰 Total: 2.5 × 700 = 1 750 ₽.

But don’t forget about the costs:

• ⚠️ Disassembly time: 2–3 hours (if no experience).
• ⚠️ Transport to the reception point (if no machines).
• ⚠️ Tools (hacksaw, wire cutters - ~500 ₽, if you buy new ones).

Is it profitable?

• ✅ Yes, if you have several old refrigerators (from 5 pieces).
• ✅ Yes, if the compressor Soviet or early 2000s.
• ❌ No, if the refrigerator modern (inverter compressor).
• ❌ No, if you disassemble one unit —the profit will not cover the time spent.

5. Alternative ways to make money on an old refrigerator

If disassembling the compressor seems too labor-intensive, consider other options:

1. Hand over the entire refrigerator for scrap

Reception points pay for:

• 🔹 Ferrous metal (body) - 8–15 RUR/kg.
• 🔹 Aluminium (shelves, doors) - 50–80 ₽/kg.
• 🔹 Copper (if not extracted) - 200–300 ₽/kg (they will get it themselves, but will pay less).

Example: refrigerator «Atlant» weighs ~60 kg, of which ~10 kg of aluminum and ~1 kg of copper. Total: 800–1 200 ₽.

2. Sell the entire compressor

On Avito or in equipment repair groups you can sell a working compressor:

• 🔹 Soviet (DHM, HF) — 1 500–2 500 ₽.
• 🔹 Imported (Danfoss, Embraco) — 800–1 500 ₽.

3. Hand over freon (if any)

Old refrigerators use freon R-12 or R-22which can be sold to refilling companies air conditioners. Price: 200–500 rubles per cylinder (you need special equipment for pumping!).

4. Disassemble for spare parts

Parts that can be sold separately:

• 🔧 Thermostat - 300-800 ₽.
• 🔧 Door seals - 200-500 ₽ (if intact).
• 🔧 Lamps and sockets - 50-150 ₽.

6. Dangers and risks during disassembly. refrigerator

Working with a compressor is associated with several risks that are often ignored:

1. Residual freon

Even in a non-working refrigerator, freon can remain under pressure. When the compressor is opened, it comes out with a characteristic hissing sound.

⚠️ Attention: Freon R-12 (used until the 2000s) when heated, decomposes into phosgene a deadly gas. Do not cut the compressor with a grinder!

2. Oil in the compressor

There is 200–500 ml of oil inside, which can spill out during disassembly non-toxic, but it stains everything around. plum.

3. Dust from insulation

When burning varnish, caustic vapors are released from the winding. Work on the street or in a well-ventilated area, use respirator.

4. Cuts and injuries

The compressor body is made of thick metal, and the winding is made of sharp wire. Wear gloves glasses to avoid. ran.

5. Legal nuances

In some regions of Russia, there are rules for recycling refrigerators as hazardous waste (due to freon, check local regulations before disassembling so as not to receive a fine.

7. Where to donate copper from the refrigerator - and how not to get scammed

There are scrap metal collection points in every city, but not everyone pays honestly for copper:

1 Check. license

The company must have a license to work with non-ferrous metals. Ask to see the document - if they refuse, move on.

2. Compare prices

Copper prices depend on:

• 🔹 Purity (pure wire is more expensive than in varnish).
• 🔹 Batch weight (the more you rent, the higher the price per kg).
• 🔹 Market situation (the price fluctuates monthly).

Example of prices in 2026:

3. Avoid fraud

Frequent tricks of unscrupulous receivers:

• 🚨 Underweight - weigh on faulty scales. Tip: take take control weights with you.
• 🚨 Underestimation varieties they say that copper is “dirty” and they pay less. Advice: clean the wire in advance.
• 🚨 Refusal of payment —they may say that “copper is not enough.” Advice: hand over only to trusted companies.

4. Where to look for collection points

List of reliable companies:

• 🔍 "VtorTsvetMet" - network throughout Russia, honest scales.
• 🔍 "LomTsvetMet" -high prices for clean copper.
• 🔍 Local private acceptance (read reviews on Yandex.Maps).

8. FAQ: Frequently asked questions about copper in the refrigerator

Is it possible to remove copper from the compressor without opening it?

No. The copper winding is inside a sealed housing, and you can only get to it by sawing or cutting the compressor. “pulling” the wire through the holes leads to its breakage.

How much copper is in the refrigerator tubes?

The cooling circuit tubes contain 150–300 grams of copper (depending on the model), these are thin capillaries, and their weight rarely exceeds 0.5 kg. compressor.

How to distinguish copper wire from aluminum?

Copper is reddish tint, aluminum is gray. Also, copper bends without breaks, and aluminum breaks when it does. repeated bending. If in doubt, bring a magnet: copper does not magnet, aluminum too, but it is easier to scratch it with a fingernail.

Is it profitable to disassemble modern refrigerators (after 2010) year)?

As a rule, no. Inverter compressors contain 300–700 grams. copper, and their disassembly takes the same amount of time as Soviet motors. The profit will be 200–500 ₽, which does not cover the costs.

What to do if the compressor cannot be disassembled?

If the compressor housing is not amenable to a hacksaw or chisel, try:

1. Heat it with a hair dryer (up to 150–200°C) - the metal will become softer.
2. Use an angle grinder (grinder) with diamond disc, but only at low speeds and with eye protection!
3. Go to a refrigerator repair shop - they have special equipment.