“Chinese” electric chainsaws and delimbers: what are they worth?

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“Chinese” electric chainsaws and delimbers: what are they worth?




View Christophe » 26/03/24, 11:47

It's spring, I had pruning work to do in addition to a fairly large and laborious firewood project: a plot of old Christmas trees to cut down and limb...(see below)

To make it easier to delimb the fir trees (a horror), I bought 2 mini electric chainsaws (€50 each) on Amazon...

So I share my experience with you.

These are 2 small loppers / pruners of 15 cm / 6 inches...

20240326_103100.jpg


Screenshot 2024-03-26 at 10-37-30 Your Orders.png
Screenshot 2024-03-26 at 10-37-30 Your orders.png (127.12 KiB) Viewed 2221 times


My selection criteria:

a) Highest possible voltage, I didn't want 12 or 14V.

So I took 21V, or 5S lithium.

So be careful in this regard the Chinese speak in max voltage (21V = 5 *4.2V) while the brand manufacturers (like Bosch, Makita...) speak in nominal voltage.

In other words a Chinese 21V = 18V brand (18V= 5*3.6V).


b) Customer comments and some YouTube videos

c) The price: I didn't want to spend 100€ on Chinese equipment with questionable reliability and especially quality of batteries...
I didn't want to spend €200 on a single brand machine...

d) Battery compatibility: they are the same.

Bonus, obviously, these models use compatible “Makita” batteries...ah ah ah, holy Chinese!

Otherwise there are always adapters between major brands...that's good to know!

e) At this price, no automatic lubrication and the chain is tightened with tools.

In short, I received these 2 models and their 4 batteries a few days ago and I have already done 3 fir tree lopping sessions lasting around 1h30 in the field (time to empty the 4 batteries)...

Why is the channel missing on the 2nd? Because it is already dead...after not even 3 hours of continuous work...It starts and stops after a few seconds, even without a chain....Return to sender (hello planet... )

My feedback on these “toys” after a few hours

They look like toys, which will make all users of thermal Stihls laugh, but in fact they work quite well (when they still work... : Mrgreen: )

a) The design is quite good: it's light (with the 2Ah = 36Wh batteries, they are the smallest) and it fits well in the hand...for disconnecting at height it's the best!

b) The cutting power is there and for standing limbing it's great: I cut oak with a section of 15 cm at a height of 5m without any problems and without blocking the chain. No need to bother with a thermal or an extension to raise high... In 10 minutes it was fixed (vs at least 30 min if I had done it with the thermal)

c) The actual autonomy is around 10 min per battery in "cut" mode (not empty therefore)...a timed test would have to be carried out.

The power indicated by the docs is 550 and 600W...not verified...but that seems a lot to me: 600W on a 36Wh battery is 3min36 continuously...so it doesn't add up...

d) I noticed that the autonomy depends enormously on the tension of the chain : with a chain that is too tight, you easily divide it by 2.

You must have a chain a little "loose" to promote autonomy without it obviously jumping...
The instructions talk about 3mm of travel when pulling on the chain, that's far too little!!

Now I leave 3mm of arrow without pulling on it. This seems to me to be the best compromise... : Cheesy:

e) I lubricate with WD40 every 10 minutes, the chains are still fine (very sharp to the finger) after a few hours of cutting

f) It takes 4 to 5 minutes to trim a 3m “all inclusive” tree

f) BIG NEGATIVE POINT.

There is a double safety system: battery and machine (engine temperature I presume)...

They can stop and not restart even with a 100% battery... that's quite annoying. You need to let them cool for 5 minutes. This also preserves the battery which has time to cool down. Hence the usefulness of having 2 machines in the field. Limbing fir trees is very intense work in terms of machine time...So I think it's an excellent test of their robustness or not...(the proof : Mrgreen: ) ...

The 2nd model has definitely become visibly safe... : roll: Too bad it cut a little better than the other...

20240326_103454.jpg


On these "1st price" models, they are carbon motors, I didn't pay attention to that, to replace the HS model I just ordered a brushless model with an 8 inch chain with the same "Makita" batteries from 4Ah...for 70€...so at the same price as the others with the difference in the price of the batteries...I will tell you if it performs better.

Temporary conclusion

If you have the means to do pruning work, especially at height, this type of tool is great! Up to 20, even 25 cm, in section, they will do the job if you use them well.

It's the ideal tool for thinning medium-sized hazelnut trees!

For continuous work, such as intensive fir limbing, they show their limits quite quickly (on the other hand for the price... you shouldn't expect miracles but it's rather quite positive overall if we omit the HS machine...)

Ah I forgot the most important thing, I'm doing the tree work with a friend who does it with a thermal chainsaw, he had to do 2 full tanks during 1 "battery" session...and didn't delimb much more than me ...and above all he was much more exhausted at the end!! : Mrgreen:

We limb up 15 to 25 fir trees per hour per person...

To be continued !!!

Edit addition, here is my electrical arsenal tests further down in this subject

Image

The Einhell from science-and-technology/chinese-electric-chainsaws-and-delimbers-what-is-it-worth-t17647-100.html
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Christophe
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Re: “Chinese” electric chainsaws and delimbers: what are they worth?




View Christophe » 26/03/24, 11:53

Not mentioned about the absence of noise and smell...but I think you guessed... : roll:
This contributes to worker fatigue!
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Macro
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Re: “Chinese” electric chainsaws and delimbers: what are they worth?




View Macro » 26/03/24, 13:18

I have the same safety problem on an impact screwdriver given to me by my children (the Makiwish we call it) in my case you just have to disconnect and reconnect the battery...

For pruning I have my old echo which I paid 40€ second hand reconditioned 20 years ago... I had to change the set of carburetor membranes (4€99) this year

But it's true it will be replaced by one on battery probably a sthil to be compatible with my neighbor and to share equipment...
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GuyGadeboisTheBack
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Re: “Chinese” electric chainsaws and delimbers: what are they worth?




View GuyGadeboisTheBack » 26/03/24, 13:22

Products included:
1x fast charger
2x Batteries
1x Cordless chainsaw
2x Chain
1x Guide plate
1x Screwdriver
1x Glove
1x Glasses
€ 29,64:
https://fr.aliexpress.com/item/10050062 ... ry_from%3A
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gegyx
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Re: “Chinese” electric chainsaws and delimbers: what are they worth?




View gegyx » 26/03/24, 13:29

I find it surprising that you can return an item to China. Minimum of €30 for any nawak.
You burned 2 pruners while doing intense work on fir trees (~20 fir trees per hour) : Shock:
In mechanics, I was strongly advised not to use "W40" to lubricate mechanisms (old typewriters for example), it removes rust, oils momentarily, but blocks three days later...
Personally, I pass the chain with a brush dipped in a cup of chainsaw oil.
They also sell advance chains, which is a sign that it doesn't last too long.
The problem being inexperience in sharpening these small chains.

Well obviously the problem comes from the engine.
In China I bought chainsaw discs with a chain on its periphery. Of course for the domestic with a mains cable.
Very effective for stumps, but be careful with soil (sharpening required more often because there are fewer links)
Also a pruner kit to adapt to an angle grinder. This drops at 12 revolutions... You still have to tinker around, because the plastic protector doesn't last long... You still need 000 fingers to continue typing on a keyboard : Cheesy:
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Re: “Chinese” electric chainsaws and delimbers: what are they worth?




View GuyGadeboisTheBack » 26/03/24, 13:39

gegyx wrote:I find it surprising that you can return an item to China. Minimum of €30 for any nawak.

The item returns to Amazon where it is either recycled or thrown away.
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GuyGadeboisTheBack
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Re: “Chinese” electric chainsaws and delimbers: what are they worth?




View GuyGadeboisTheBack » 26/03/24, 14:08

For those who own an angle grinder, here is an adapter that will transform it into a small chainsaw with chain lubrication:
https://fr.aliexpress.com/item/10050062 ... ry_from%3A
Video: https://video.aliexpress-media.com/play ... om=firefox
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Christophe
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Re: “Chinese” electric chainsaws and delimbers: what are they worth?




View Christophe » 26/03/24, 14:14

Macro wrote:I have the same safety problem on an impact screwdriver given to me by my children (the Makiwish we call it) in my case you just have to disconnect and reconnect the battery...


Not on these mini chainsaws, even if you put back a "fresh" battery it doesn't restart...you have to wait 5 minutes for it to cool down...and it's not 25°C there...I think it's difficult usable intensively when it's hotter than now!

The problem is that we don't know if it's the battery or the engine when stopping: the gauges for one batch of battery are very approximate (almost all or nothing)...and on the 2nd lot the gauge was on the chainsaw (the HS one...)

Besides, I have never had the case on my screwdrivers which use the same type of motor... probably because it is much less intensive as a tool?

There is always the possibility of removing this safety but if it means that the engine burns after 1 hour... it's not worth it.
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Christophe
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Re: “Chinese” electric chainsaws and delimbers: what are they worth?




View Christophe » 26/03/24, 14:16

gegyx wrote:I find it surprising that you can return an item to China. Minimum of €30 for any nawak.
You burned 2 pruners while doing intense work on fir trees (~20 fir trees per hour) : Shock:


I don't buy this kind of equipment in China it was on Amazon...so yes there is a guarantee!

I didn't burn 2, I burned 1...do you know how to read? : Shock:
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Christophe
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Re: “Chinese” electric chainsaws and delimbers: what are they worth?




View Christophe » 26/03/24, 14:17

GuyGadeboisLeRetour wrote:Products included:
1x fast charger
2x Batteries
1x Cordless chainsaw
2x Chain
1x Guide plate
1x Screwdriver
1x Glove
1x Glasses
€ 29,64:
https://fr.aliexpress.com/item/10050062 ... ry_from%3A


Yes and ? Without guarantee...for 20€ more I buy on Amazon with guarantee and delivered in 2 days...
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