I would be interested on any comments one would have on the use of calcium sulponate grease

Dave
I have been using a petro canada grease(og2)that has the calcium sulphonate thickener.We have had good success with it in our wet areas as it is capable of absorbing moderate levels of water.
We were also using it in our auto lubers in other areas of our plant,but we ran into problems with some lubers not emptying completely, and some not even starting at all.
We could visually see that grease was separateing in the luber.Not real sure why! Contacted petro can and they werent sure of the cause but said possibly a combination of high temps and vibration??

Dave,

I have been using Premalube Xtreme in several applications in our plant. I first tried it in the bearings for a 50000 lb fly wheel that was driving a mechanical press. I had been using other greases but was not having great success. The other greases were bleeding out and leaving deposits on the bearing surface. The calcium sulponate did not. Also, I have used it very successfully in conveyors that are subject to high temperatures and water washout. Premalube comes in two types, one with moly and graphite and one without. After having tested several greases, including some specialty greases, I would recommend trying them out. It is a good product that lives up to its name.

I have used this grease in High temp and heavy load apllication through a centralised lube system and found the consumption coming down and no chocking of the centralsed lube system
However I will also like to know wheather these grease are popoular world wide

Dear sir,

We have this grease in our range. We manufacture speciality lubricants from last 35 years in India & regular exporter of this type of product. Please visit our web www.mosil.com

Romesh sawant
09370149793

Good greases Dave,

down side would be very tough high shear thickner so in high speed high reciprocating applications we would recommend a polyurea , heavy slow moving excellent greases,
This would not suit a cylidrical roller in a large elecic motor, polyurea better,

but would suit any heavily loaded slow moving aplications, high water, good corrosion resistance, (5 X life extension in mountain bike bearings, ISO 400 base oil)
The exon/witco version uses CaCO3 for the Passive EP and this works very well

Regards Rob S
PS also low toxicity,

Upto what DN value does it work very good?

We have sponge iron plants using calcium sulphonate for slip seals with good results. Please see www.projectsalescorp.comin the Molykote section.

quote:

Originally posted by Dave Maki:
I would be interested on any comments one would have on the use of calcium sulponate grease

Hi
Back to Basics again
two question on Calcium Sulphonate Grease
do the thickner system have differnt properties depending on the sourece?
Do they absorb too much water and if so how can they e corrected?
Any comments from experts or field experience?

you can read the below article which introduces the performace of Calcium Sulfonate Thickeners.

http://www.machinerylubrication.com/article_detail.asp?...ookgroup=Lubrication

Thanks for the help, But why water spray off is so differnt in these 2 greases of Calcium sulphonate Complex - thts the question and what additive has been used in the 2nd case

That is an interesting question, and I've wondered this myself. I believe that spray off is attributed to the adhesive/cohesive additives and formulation and calcium sulfonate greases already have a high thickener content. More tackifiers in the grease would improve upon this(spayoff) but would reduce the amount of oil even further. IMO

what I have seen is that properties vary greastly between 2 different greases of Calcium Sulphonate comples - does that mean the sulphonate complex properties can vary so much between suppliers?

quote:

Originally posted by Arupanjan:
Thanks for the help, But why water spray off is so differnt in these 2 greases of Calcium sulphonate Complex - thts the question and what additive has been used in the 2nd case

these shoud be be for two different NLGI grease, the second is NLGI 2 grease.

I have heard of Calcium suphonate grease being using in high temperature ,load conditions in corrosive environments,does it work in chasis application in trucks for fifth wheels, king pins and wheel bearings for 1,00,000 miles and beyond. I would be keen to know your experiences in automotive application?

"Up to what DN value does it work very good?"

Good Question, as the thickener is a tough shear resistant thickener the grease usually will work fine up to a dN value of 150,000, 150K to 200K monitor carefully and over 200K other thickeners should be used,

If the grease is used in a high temp area an autolube continuosly moving the grease through should considered as over temp, 250-350°C , will fuse the thickener if left static for long periods,

Regards

Rob S

Calcium sulfonate grease are best for high temperature application and are very popular in Steel plants.InIndia major steel plants are using these greases.These greases have the ability to absorb around 50% of water without changing the origianl properties mainly cosistancy.The water spray off property mainly depends on its base oil viscosity and tackyness additives used.Hence two sulpfonate grease could have different water spray off properties