When planning independent repairs of household appliances or organizing their transportation, knowing the exact weight of the components becomes a critical parameter. Many owners, faced with the need to replace the engine, often underestimate the weight of the unit, which leads to difficulties when climbing to a floor or errors in calculating the lifting capacity of the elevator. Compressor weight directly depends on its type, manufacturer and year of manufacture, so there is no universal figure for all models.
On average, A standard piston motor-compressor, which can be found in most household refrigerators, weighs from 9 to 12 kilograms. However, this range can expand significantly: compact models for minibars barely reach 6-7 kg, while powerful dual-circuit units for volumetric Side-by-Side systems can reach a weight of 15-17 kg. Understanding this difference will help you correctly calculate your strength and not damage the equipment due to careless handling.
In addition, the final mass is affected by the presence of additional elements, such as a starting relay, a protective thermal relay and copper tubes, which are often included with the new unit. If you are planning a DIY replacement, you will have to take into account not only the “dry” weight of the metal, but also the weight of the oil located inside the sealed housing, as well as the weight of the packaging when purchasing a new part.
Factors influencing the weight of the compressor
The main factor determining the weight is the performance device. The larger the volume of coolant a motor must pump per unit of time, the more massive its internal components become - the crankshaft, piston group and electric motor stator. It is logical that the engine for a large two-chamber refrigerator will be much heavier than an analogue intended for a single-chamber model or freezer.
The second important aspect is the design. There are inverter models that operate on the principle of changing the speed of the shaft, and classic linear (piston) units. Inverter compressors often have more complex electronic filling and can be lighter or heavier depending on the housing materials and magnets used, but their weight is often comparable to traditional solutions.
It is also worth considering the material of the body and internal tubes. Some manufacturers use aluminum windings instead of copper to reduce cost and weight, although this is less common in the premium segment. The density of the refrigerant used and the amount of oil filled in by the manufacturer at the factory also contribute to the total weight, although to a lesser extent than the metal parts.
Weight compressors of popular brands
The household appliances market is dominated by several large manufacturers of compressor units, whose products are installed in refrigerators under different brands. For example, the company Secop (formerly Danfoss) supplies lightweight and compact models often used in European refrigerators. Their products are known for their high packaging density and relatively low weight.
The brand Embraco, widely used in Indesit and Ariston technology, produces more massive and “heavy” units, characterized by high reliability and noise insulation. Chinese manufacturers, such as Jiaxipera or GMCC, often copy the dimensions and weight of their European counterparts, but can use thinner metal, which slightly reduces the final weight.
Below is a table showing the approximate weight of compressors of various brands, which will help you navigate when ordering spare parts or planning works:
| Brand / Manufacturer | Typical model | Approximate weight (kg) | Application |
|---|---|---|---|
| Secop (Danfoss) | TL4G, NL5G | 8.5 - 9.5 | Small and medium refrigerators |
| Embraco | EGU60HAG, T60 | 10.0 - 11.5 | Two-chamber models |
| Atlant (Atlant) | CK-100, CK-120 | 11.0 - 12.5 | Atlant refrigerators |
| LG (Linear) | MA75, MA87 | 13.0 - 15.0 | Large No-Frost systems |
| Whirlpool | EMBRACO-Aspera | 9.5 - 10.5 | Middle class equipment |
Please note that the data in table are averaged. A specific modification may differ by 10-15% up or down depending on the year of production and series.
Weight features of Atlant compressors
Belarusian-made refrigerators Atlant are among the most common in the post-Soviet space, and the issue of replacing their motors comes up very often. Compressors installed on these units are traditionally considered “heavy artillery”. They are made of high-quality steel and have an impressive weight, which has a positive effect on the level of vibrations - the heavy motor “walks” less on the frame.
A standard compressor for a two-chamber refrigerator Atlant, such as the popular series SK-100 or more modern analogues, weighs about 11-12 kilograms. If you plan to carry it in your hands, for example, from a spare parts store to your home, this is a noticeable load, especially considering the dimensions of the case. One person can easily handle the carrying, but difficulties may arise when climbing to the upper floors without an elevator.
It is important to note that when replacing a compressor in Atlanta, it is often necessary to change the filter drier, as well as add oil. The weight of this entire assembled “structure” before installation will be even greater. When dismantling the old unit, also be careful: after disconnecting the tubes, oil may remain inside, which will add unpredictability to the balancing of the part when transporting.
⚠️ Attention: When transporting an Atlant compressor or any other brand, strictly monitor the position of the fittings. Do not allow moisture or dirt to get inside the open tubes, as this can instantly damage the new unit after the first start.
Mass of motors for Indesit, Ariston and Zanussi
Equipment under the brands Indesit, Ariston i Zanussi most often equipped with compressors Italian-made Embraco or their licensed copies. These engines are compact and have high power. The weight of such a compressor usually varies between 9.5 – 10.5 kg. They are lighter than their Belarusian counterparts, which makes logistics and installation easier.
However, in newer models of these brands, especially in systems No-Frost, more efficient dual-circuit motors can be installed. Their weight can reach 12 kg. A feature of such models is the presence of additional fastening elements and sometimes longer tubes, which increases the total volume of space occupied when carrying, although the weight remains within reasonable limits.
When working with equipment of these brands, it is worth remembering the fragility of the compressor suspension. Because they are lighter, engineers sometimes make rubber shock absorbers less bulky. If you install it inaccurately, there is a risk of damaging the tubes on the refrigerator body, so always check the gaps.
Why is the weight of the compressor important during delivery?
Heavy compressors (more than 12 kg) require more durable transport packaging. If you order the part by mail, make sure that there are foam inserts inside the box, otherwise, if dropped, thin copper tubes may break off from the body, which will make the unit unusable without soldering.
Heavyweights: compressors for Side-by-Side refrigerators
Modern multi-compartment format refrigerators Side-by-Side requires maintaining a low temperature in a huge volume. For this, powerful compressors are used, often of the inverter type. The weight of such units can unpleasantly surprise an untrained technician. Some models from LG or Samsung can weigh from 14 to 17 kilograms.
This weight is due not only to the size, but also to the use of rare earth magnets in DC motors, as well as a more massive body to reduce noise. The vibration from such a “heart” of the refrigerator would be catastrophic without a reinforced frame, so the body itself is made more massive.
Working with such heavy components alone is difficult, especially when you need to simultaneously hold the compressor and solder the tubes or tighten the fastening bolts. It is recommended to use a stand or ask an assistant to hold the unit during installation so as not to strip the threads or bend the tubes under the weight of the metal.
Rules for transportation and preparation for replacement
Knowing how much your potential compressor weighs, you need to properly prepare for moving it. If the weight exceeds 10 kg, it is highly recommended to use gloves with a rubber coating, as the smooth metal body may slip from sweaty hands. A sharp impact of a heavy compressor on the floor or steps of a staircase can deform the internal spring suspension.
When ascending to a floor without a freight elevator, distribute the load. A compressor is a compact but dense load. Carrying it on outstretched arms is uncomfortable and harmful to the back. It is best to press it to the body, clasping it with both hands, or use a special carrying bag if you have access to professional tools.
If you order delivery of a spare part by courier, be sure to notify the operator about the weight of the cargo. Standard courier services often have a 10kg weight limit per item for door-to-door rates. The compressor may weigh more, and the courier has the right to demand additional payment or assistance during lifting.
☑️ Preparing to replace the compressor
Safety precautions when working with heavy components
Working with a compressor is not only electrical and soldering, but also physical activity. When lifting a machine weighing 12-15 kg, always bend your knees and do not lean over your back. This basic rule of ergonomics will save you from lower back injuries that can happen even with a single jerk.
In addition, remember that a compressor is a vessel under pressure (even if it is empty, there may be residual pressure there). Although the risk of explosion is minimal, mechanical damage to the housing by a heavy object when dropped may result in flying metal fragments. Therefore, protect your fingers and eyes when working with heavy metal parts.
When installing a heavy motor on the refrigerator frame, do not try to hold it with one hand while tightening the bolts with the other. Use temporary supports or have someone hold the unit until you have secured all the mounting nuts. A broken compressor can pierce the back wall of the refrigerator or damage the condenser.
⚠️ Attention: Never lift the compressor by the sealed copper tubes! They are not handles and can easily come off the body under the weight of the unit itself (9-15 kg), which will lead to depressurization and the need for expensive soldering.
Comparison of linear and inverter models by weight
In recent years, there has been a tendency to reduce the size and weight of compressors while maintaining their power. Inverter models are often more compact than their linear predecessors. However, due to the introduction of complex electronics and magnets, their weight is not always reduced in proportion to the reduction in size.
Linear compressors operating on the reciprocating principle require massive counterweights and springs to compensate for vibration. Inverters that operate more smoothly may have a less massive suspension but a heavier stator. As a result, the difference in weight between a modern inverter and a classic one can be only 0.5-1 kg in one direction or another.
When choosing a replacement, you should not focus only on weight. A lighter compressor is not necessarily better or worse. The main thing is the correspondence between productivity (m³/hour) and planting dimensions. A heavy compressor is often perceived as a sign of “quality” and reliability, but modern technologies make it possible to make lightweight and durable units.
Is it possible to replace a heavy compressor with a lighter analogue?
Replacement is possible only if the performance (cooling capacity) and overall mounting dimensions are the same. If the light compressor is weaker, the refrigerator will work non-stop, trying to gain temperature, which will quickly damage it. If it is more powerful, problems may arise with the defrost system and pressure in the circuit.
Does the weight of the compressor affect electricity consumption?
The weight of the metal does not have a direct effect on the electricity meter. However, heavier older compressors often have a lower energy efficiency rating. Modern lightweight inverters are more economical, but not because of weight, but because of the design of the engine and operating algorithms.
Why can a new compressor weigh more than the old one?
This may be due to the fact that the new unit retains a larger volume of factory preservation oil, or the manufacturer has changed the housing casting technology, making the walls thicker. Also, different batches of the same brand may differ slightly in the weight of steel used.
Is a heavy compressor dangerous for the floor or shelf?
The compressor itself stands on rubber feet inside the refrigerator and distributes the weight evenly. However, when transporting the entire refrigerator compartment (20-30 kg) on a flimsy shelf or when installing on an uneven floor, a heavy motor can create a point of increased vibration load, which over time will weaken the structure.