Snow Attachments Do all blowers throw the same distance?

[jagyzf]

Is there a way to find out how far a blower can throw snow. I once had a Kubota on a GF1800 lawnmower that threw it 30'. My JD front mount 359 on my 4410 isn't even close. Now as I shop for a rear blower I want one that will throw it a decent distance. Does a 4 blade throw further then a 3 blade inpeller? I realize snow conditions will change but is there a spec I should be looking for to ensure good throwing distance.

As others have said the biggest factor should be rim (paddle tip) speed. Next would be number of paddles. I have seen front mount blowers out throw rear rear mount with larger impellers due to the fronts spin at a much higher speed. Impeller size has more to do with the volume of snow a blower can take in, yet again speed of the fan and number of paddles will have some influence.

 

[dstig1]

Cast iron pillow blocks? What's that mean?

The general term for bearing mounts. These things:

 

[ihuntbear]

I just bought a new N80 norman made in canada.Throws 150 feet or more .Like it allot better than the last one.It was an 78 "econor

 

[devildog1]

Quote-"I just bought a new N80 norman made in canada.Throws 150 feet or more":laughing::laughing: Now this has to be a mistake because that's a long way and even a front mounted Kubota won't throw snow that far, maybe 50 + feet but 150', If this is correct please send photo or vid. Because with the amount of snow:thumbsup::thumbsup: we're getting in upstate N.Y. this year I'm igoing to buy a 3 point blower.
DevilDog

 

[rbargeron]

Here's a typical 7-foot blower operating in 10" deep snow. Most of the snow is deposited 20 - 40 feet away, with some falling closer. The fan has 1/4"-3/8" clearance and is running at full 540 pto rpm. Like any pump, a snowblower works best with a full bite, plenty of snow being fed by the auger. If there's less supply available or if it's unusually wet, more of it will land short.

I think how far the snow goes is determined by snow conditions (wetness) and blower rpm (fan tip speed). A tip speed somewhere between 4600 and 5200 ft/min does a good job.

 

[dixstir]

blowing distance rpms rpms rpms took the rear blower of my jd 550rpm and put it on my jap thractor what a change they made it with 550-1000 rpm and it blowers a lot futher but no cab on it so it goes back on the jd.

 

[flyingcow]

The general term for bearing mounts. These things:

Thanks.

 

[ihuntbear]

The driveways here are 70 feet apart.I made a mistake of putting the chute deflector all the way up and the snow went into the driveway two driveways up that would be roughly 140 feet.the home owner came walking up to me ,i'm thinking he wanted me to clear his driveway but he gave me s**t for filling up his driveway.I told him I just got this new blower but didn't think the snow would go that far.He said he needed his driveway clleaned but wasn't going to pay to have it done.I said sorry and cleaned it up.This blower is 80" wide 36 " high.The impeller is 26" high x 11 " deep with four blades,auger is 23 "high.The chute is 4 feet when extended.Next time it snows here I'll get my wife to video and I"ll post.This is an awsome blower

 

[JFS2295]

I have to careful doing my driveway as well

I know the discussion is about 3pt blowers, but I don't have one. I've posted these pictures from when I cleared out company parking lot before, but the point is HP is not the only factor. The impeller design, tip clearance and RPM all factor in. Gravely blowers are often known to throw snow well, and these images are of my 32" with the 12hp tractor. It will throw snow about 60-70', and the 32" blower is not known as the best thrower in the lineup.

 

[Jerry/MT]

How far it throws should be dependent on the tip speed of the fan. the higher the tip speed the further the throw. If you know the gear ratio of the blower box and the tip diameter of the fan, you can calculate the tip speed:
Vtip = pi*Dtip*Nfan/60,where,(If D is in ft, the Vtip is ~ft/sec)

Nfan = Npto * gear ratio of blower. So Vtip =pi*Dtip*gear ratio * Npto/60.
For a 540 rpm pto,

Vtip540=9*pi*Dtip*gear ratio

If you can get the information on the gear box ratio and measure the tip diameter, you can compare blowers on the basis of tip speed. The higher the tip speed the further the throw.