Snow Attachments Snow PUMP

[fitterski]

Maybe I am missing something but why bother to vary the blower speed at all? Why not vary the travel speed to match the loading? Having the blower turn fast with a light load would be much more efficient than using variable speed hydraulic pumps, motors and their controls.

Dry snow blows good within a certain tip-speed range, too fast and it becomes trying to hit a feather with a baseball bat. Wet snow goes nowhere, sometime LITERALY nowhere, at the same speed so for such times being able to sling it better with up to a 30% spoolup helps. On the top end too fast means a catastrophe if the auger ingests a mailbox, and the time between passing fan blades leaves no room for the snow to fall into the fan.

 

[fitterski]

For Rexroth do a search for RE92003. That is the data sheet for the Rexroth A4VG closed loop pump. The control you are looking for is called "DA" This data sheet explains it much better than I can. We will Gladly help you spend your money.

Thanks, but I don't spend that easy

I see they have a nice range too for my somewhere between 3 and 8 cu-in future needs

 

[fitterski]

I give you high marks for using the 4 cylinder air cooled Duetz engine...........

At that time the diesel with the longest run in history was in some Quebec wildlife park on a genset, not having been stopped for over 45,000 hours. I lost track of it since. They are very expensive though, look for deals, I found one, but new part costs re out of this world. Not wanting to plug them, I still have to add this: we in NA creatyed all these pollution standards to fence iout the 'foreigners', these norms now require our homegrown diesels to mix urea in, the ONLY one that doesn't need any is Deutz :laughing::laughing::laughing::laughing: As for winter starting: NO plugs, NO ether, NO toaster, NO block heater ...-30c second turn it fires. Amaazing! In my Cat it's a Perkins, forgetitt!!!!!!

 

[franklin2]

This Schmidt company makes some serious blowers. I am not sure if you can buy them over here though.

Schmidt Snow Cutter Blowers - YouTube

P.S. I would not worry about the other threads, you didn't make in headway in any of them that I have seen.

 

[muddstopper]

Not ever having a need for a snow blower, I know very little about one. I know I would be of very little help trying to design something I know nothing about. Having a thread spread over 3 different forums doesnt help. I got tired of going back and forth checking whats been said pretty quick. With that said, there are a few things one needs to know to design or build anything. Number one, what is the budget. You can design a million dollar machine, but if you aint got $10 in your pocket, whats the point. Number 2, you have a blower that works but are just wanting to improve performance. I aint going to research threads to see what you have posted already, so having all that information in one place might get you a few more replies and maybe a little more help. A few things to talk about is what size is the blower fan and how is it designed. How many blades are on it. To get more distance, you might just need to add a extra fan blade or two. Dia of the fan and rpms it turns will give you tip speed. It could be you just need to increase the dia of the fan to get more air flowing. I am just pulling off what little I know about straw blowers and track brooms, but I suspect blowing snow would be similar in function and I dont think it takes all that much hp to make things work. A 25hp straw blower will blow straw 100ft. Is snow harder to blow than straw, dang if i know.

 

[fitterski]

This Schmidt company makes some serious blowers. I am not sure if you can buy them over here though.

Schmidt Snow Cutter Blowers - YouTube


P.S. I would not worry about the other threads, you didn't make in headway in any of them that I have seen.

Those cost more than my house, MY budget at the outside is a few thousand bucks and almost akll of that for raw materials or used gear :laughing:

 

[fitterski]

Not ever having a need for a snow blower......A 25hp straw blower will blow straw 100ft. Is snow harder to blow than straw, dang if i know.

It varies a L O T. Sorry about the thread-spread, I already hate web hosted forums as opposed to neatly threaded newsgroups and to make things worse I have a truly multi-discipline topic. The current rig cost me around 10 grand including lotsa tools, this next one should be less than half that (famous last words). My way is to research the entire spectrum and then decide which way. The industrial blowers bigger than my house are off limits not only because of cost but also because I don't want one. AS for 10 thousand dollar hydraulic pumps I might just pick one up for one for one thousand next week so those also get onto the table Abd often researching something you start with more capacity which later gets trimmed back so that 10 thousand dollar pump becomes a 2 thousand one picked at an auction for a hundred.

 

[hawkeye08]

Reading through this, I started thinking, are dry snow and wet snow enough different that you need different fan for each? or is it simply a different fan speed that would allow you to blow both effectively.

If you are using a hydraulic motor, can you vary the speed? If you slow the fan down, will the auger be too slow? Perhaps you need two hydraulic motors, one on auger, one for fan and figure out the right speeds for the conditions.

Maybe ground speed determines auger speed while type of snow determines fan speed??

Just thinking outloud.. wishing you the best.

 

[aczlan]

What is your current blower fan RPM? If you are using what used to be a 540RPM PTO blower, I would aim for 600-800RPM on the blower.

How much clearance is there between the fan and the outside of the fan housing? If there is more than 1/4", I would add HDPE sheets to close up the tolerances on the fan to the point where it will pickup a dime that you set in the bottom of the fan.

Here is what I did on our 7' Loftness blower (which runs on the front of the tractor from the rear PTO via a pair of gearboxes and a long PTO shaft):


At the closest point, the HDPE on the blower fins just brushes the HDPE that goes around the outside of the drum.
The other thing I would look into doing is to add a drum eject to your current snowblower such as this one ( http://www.tractorbynet.com/forums/snow-removal/332389-drum-eject-snow-blowers.html ):

They are supposed to be more efficient at throwing lots of snow out at the cost of only being able to blow it out to one side or the other.

Aaron Z

 

[muddstopper]

Looking at some of the skidsteer blowers. It seems a 84in one with 50gpm@4500psi is about the largest one I could find. Going back to what I first suggested about using hydraulics,50 gpm@4500psi is going to take about a 145hp engine to pull the pump. If you go with a 12cuin hyd motor, you should be able to get about 963 rpms at 131hp and 716ftlbs of torque. This would be about double the hp of you current deutz engine. I have also been researching some of the other blowers and how to improve performance. It would seem that Aczlan is on the right track about tightening up the clearances. There are companies that actually make and sell such kits for snow blowers. I would probably go the same route as Aczlan took and make my own. Also, the blowers I was looking at used a 24in blower fan, I think you said yours was 36"???. The increase in fan size should provide more windspeed and throw further than the skidsteer types I looked at. :tractor: