Choosing the Right Plaster Sander: Comparing Models, Brands & Features for 500m2 Project

Hello!
I need a plaster / sanding machine. I would like to spend a lot of money for this purpose because I do not intend to earn on it and I will only need to work about 500m2. I tried to manually process one room but it is a hassle and worst of all, a mass of dust. I don't have any experience in machining with a grinder but I start from a room in the basement and I can work out there without a problem. I have a workshop vacuum cleaner, to which I bought a reusable sack made of allegro, which does not allow for dust resulting from grinding of gypsum plaster and as for now everything is ok, the bag does not pass.
I found these grinding machines on the auction portal that I was thinking about:
1) https://allegro.pl/szlifierka-do-gipsu-gladzi-tynku-papier-worek-led-i7504544161.html

It has a short arm that can be operated more precisely (I think). LEDs for surface illumination and attachment to the vacuum cleaner tube.

2) https://m.ceneo.pl/27792728#tab=reviews

On one forum, the grinder was recommended as cheap and good. It has a long arm for making the ceiling, attachment to a vacuum cleaner but may not be handy due to its length when wall treatment.

Which of these two should you choose? Or maybe you have a cheap alternative or something better for about PLN 500?

I had the same dilemma as finishing the house. I bought a Panasam giraffe ... No problem. I can't imagine grinding such surfaces by hand as there are tools ...

pzdr

It will be hard to rent, because I have to go for a piece to buy the tools and I will have a few days with everything, so the costs of renting the equipment will be as much as I would buy.

Hi, I would take the one from the second link.
The length of the machine when grinding the ceiling is an advantage, when the walls do not bother completely, you just keep it horizontal.

I have been professionally using Pansam giraffe with a handle motor for about 5-6 years and I don't complain at all.
It is lightweight, has a retractable arm, simple in construction and relatively reliable, costing about 500 PLN in a cloakroom.
I have never exchanged the square spring transmitting, I make sure to fire it in the lowest gear.
A few years ago someone stood on it and broke the motor housing, I fixed it with resin and a glass mat in such a way that to replace the motor brushes I would have to break it again.
But the brushes don't want to end

That's it
Nice.

E.g: https://www.narzedzia.pl/szlifierka-do-gipsu-...IzaOznb6u3QIVysqyCh1oRwqqEAQYAiABEgL2EvD_BwEE

Added after 29 [minutes]:

wyczesman wrote:

It has a short arm that can be operated more precisely (I think)

Rather the opposite, the head with the disc should be movable to freely adjust to the ground surface.
All in all I think so, I never tried to grind like in the first link

I bought a second thought Pansam giraffe with a motor on a handle where the motor with a shield is connected with a roller. Therefore, I have a question about the seal that is on this shaft. The grinder came to me unfolded in a box, all parts must be put together and the instructions are practically illegible, tragically made with micro drawings of parts that cannot be recognized on the graphic. The Internet is the same, the same instruction, I did not find any other. The problem I have when folding is that I'm not sure where one of the seals on the drive shaft should be. The gasket was on the shaft, after assembly it is on the outside, which I will show in the attachments. It couldn't be mounted otherwise, but I wonder if it shouldn't be inside. If someone has such a grinder, please let me know if the gasket is in the right place.

renewal

I finally remembered this and looked at my machine today, saying gasket do you mean this black O-ring?
For me it is outside but in the hole only half, the other half is squeezed out of the hole, probably due to an error in assembly, did I fold it? I do not remember

Despite this, the bearings show no signs of wear due to the dust getting into them

Tomorrow, if I don't forget, I'll take a picture.

It's tomorrow, I have not forgotten

And which giraffe would you recommend for around PLN 1,400 that is to be used in the company?
Light, long (ceilings) and welcome lighting but this is not a condition.
Greetings.