Vibromera forum

Dear Nikolai,

 A few months ago I bought a balanset-1 from You.
Now  I've started balancing tests, there are problems and I need your help.

1. I tried to balance the 2.5m long mulcher rotor, I did everything in the balancing manual, but the software showed me aunbalance in the P1 cca.1300 grams, in P2 650 grams. When I put this weigths rotor shakes even more, so I have to put weights a couple of times but the rotor is still unpredictable.
When I pull the rotor from the mulcher and put it on stationary balance machine, another software shows 300 grams in both planes and when I set the weights the rotor calms down.

2.  3m long mulcer rotor.
I make test run. Then I put test weight o 1st plane, I spin in and measure, remove weigth.
Put weigth on 2nd plane, spin rotor, measure.
And now starts my problems. Trim balance wants cca. P1=1400g@78deg and 680g@347deg. When I put like sofware said and spin and mesure, next result say something quite different. And rotor vibrate even worse.
So I put more and more weights but result is worse.

Please help me to understand what I am doing wrong.
When I balance on field I cant do anything, but when I put rotors on stationary balancing machine in two spins i can balance abouth anything.
From ten mulcher rotors that I ve tried to balance on field, I didnt  successfully balance even one.

Best regards.

Mr. Shelkovenko,

I'm interested in buying balance-1. I'm wondering if this device is strong
enough for field balancing the rotors of mulchers in two planes.

Thanks in advance.

Best regards

Dear Mr.,

I've seen the field balancing equipment on your webpage.

We start manufacturing centrifugal impellers for small single inlet
centrifugal fans.
(see attached picture)
The impeller outside diameter is from 300 up to 450 mm and width 140 up to
220. Weight 1,5 to 5,0 kg.

In case of using your Balanset-1 device, could you please make a
schematics with:
- where to place the vibration sensors;
- where to place the reflector mark;
- where on the rotor to add test weight (we want to add mass, not
substitute).

Looking forward for your reply,

Greetings,

We need balancing machine for Pelton runner. All necessary information’s are enclosed in the drawing.

Those are the cases of smallest and biggest runners that we need to balance.

Please, can you confirm that we can use your equipment for balancing such parts and send us the quotation?

Best regards.

We are a power generation company having big generators of 120mega watts. We have some vibration in them. We need a test set to balance their rotors.

I have seen your add on ebay. Can you please share that

How much big (length/diameter/weight) rotor can be balanced with this device?
What is the cables length of vibration sensors?
What is your final price of this equipment?
If we do not buy magnetic stand for speed pick up as we have it and also not buy weight scale then what will be the price?
 

Please again note that our generators rotors are very big. Rotor weight is 50ton, length is 6 meters and diameters is 02 meters.

Need your feed back to proceed.