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Engine Weight Query: Used 5.5kW 1450 RPM Motor - 18.65kg Shipping Weight Possible?

Toma_Kamil 12354 9
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Can a used 5.5 kW, 1450 rpm motor really weigh only 18.65 kg?

No—18.65 kg is not realistic for a 5.5 kW, 1450 rpm motor; forum replies say such motors are typically around 40 kg or more, and catalog data shows the lightest aluminum 5.5 kW units still weigh about 41–42.2 kg [#16270534] [#16272842] For comparison, one user reported a 4 kW 1450 rpm motor at about 40 kg, and another said an older 5.5 kW motor weighed 56 kg [#16249790] [#16249838] A 2.2 kW aluminum motor was reported at about 17 kg, while an older cast-iron 2.2 kW motor weighed about 35–37 kg, showing that housing material changes weight a lot but not enough to make 5.5 kW drop to 18.65 kg [#16270119]
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  • #1 16249779
    Toma_Kamil
    Level 9  
    Posts: 44
    Rate: 4
    Hello. I have a question. I bought a used 5.5kw engine on a certain auction site and the seller sent me the goods and the weight of this product is 18.65. Is it possible? It would seem that these engines are heavy. I am asking for an opinion
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  • #2 16249790
    Xantix
    Level 41  
    Posts: 6483
    Help: 686
    Rate: 1657
    I have a 4 kW 1450 rpm engine at my grinding mill and its weight is around 40 kg. So since yours has more power at the same speed, it should be heavier. Unless it is some super economical version for special applications?
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  • #3 16249838
    krzysiek_krm
    Level 40  
    Posts: 4612
    Help: 716
    Rate: 599
    Hello,
    some time ago I used a 5.5 kW engine, it weighed 56 kg, slightly less than 20 kg it weighed a 2.2 kW engine. However, it was a long time ago, even in the PRL, maybe there were some "heavier" technologies at that time.

    greetings
  • #4 16250437
    Toma_Kamil
    Level 9  
    Posts: 44
    Rate: 4
    But I saw the nameplate and there were given the turnover and 5.5kw and it didn't look like it would have been punctured. Were there such engines? Maybe someone met with something like that?
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  • #5 16250451
    Krzysztof Kamienski
    Level 43  
    Posts: 21895
    Help: 2033
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    Modern light-alloy engine ....... possible ...
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  • #6 16250494
    triakw
    Level 18  
    Posts: 215
    Help: 22
    Rate: 57
    What producer? Engines made in Romania were in aluminum alloy housing. Their disadvantage was the construction of stator nurseries [open-cradle, difficult to rewind].
  • #7 16270119
    PATAFIAN_PATAFIAN
    Conditionally unlocked  
    Posts: 576
    Help: 38
    Rate: 54
    Hello.
    It all depends on what housing (cast iron, aluminum) the engine is in. We have a very old 2.2kW 1450obr engine from the PRL production in a cast iron housing which weighs about 35-37kG, and recently I bought a used INDUKTA 2.2kW 1450obr engine which is in an aluminum housing and weighs approximately 17kG, therefore everything depends on the housing.
    Greetings.
  • #8 16270534
    Anonymous
    Anonymous  
  • #9 16272842
    Krzysztof Reszka
    VIP Meritorious for electroda.pl  
    Posts: 10574
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    Relax friends, just look at the manufacturers' catalogs.
    The lightest 5.5 kW aluminum engine from the company is 42.2 kg.
    The lightest 5.5 kW aluminum engine from Tamel is 41 kg.
    So there is definitely a 5.5 kW engine in the package. Engine Weight Query: Used 5.5kW 1450 RPM Motor - 18.65kg Shipping Weight Possible?
  • #10 16278625
    Berend
    Level 17  
    Posts: 552
    Help: 15
    Rate: 88
    So you blown in, unreal such power at such a mass,
    For example, I now have an old SZJe 34a 3kW squirrel-cage induction motor at hand, weighing 37kg.
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Topic summary

LABEL_AI_GENERATED
The discussion revolves around the weight of a used 5.5 kW 1450 RPM motor, which the user received with a shipping weight of 18.65 kg. Responses indicate that typical weights for similar motors are significantly higher, with estimates ranging from 40 kg to 56 kg depending on the construction materials (cast iron vs. aluminum). Some participants suggest that modern lightweight designs could account for the lower weight, while others assert that such a low weight for a motor of this power is unrealistic. Specific brands and models are mentioned, with references to manufacturers' catalogs indicating that the lightest 5.5 kW aluminum motors weigh around 41-42.2 kg.
AI summary based on the discussion. May contain errors.
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