Hydro-Force II..... 2-man, 2- gun pressure washing trailer

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graytruck91

New member
NOW AVAILABLE!………..The 2 man, 2 gun, 8.0 GPM @ 3000 PSI. Hydro - Force II trailer package… $9875.00. cash price! powered by a 24 HP Honda electric start engine. This is the perfect machine for the pressure washing contractor who uses a two-person crew. both crew members can use 4.0 GPM @ 3000 PSI each. or one crew member can use the total 8.0 GPM @ 3000 PSI. The unit comes mounted on our 16’ X 83” wide trailer. The unit comes with a 325 gallon tank along with a 35 gal. anti-freeze tank, and a 15 gallon detergent/chemical tank. 1 supply hose reel with 100 ft. industrial grade supply hose and 2 high-pressure hose reels with 100’ high-pressure hose along with 2 guns and 2 wands and a complete assortment of nozzles. all units require absolutely no assembly. They are ready to go to work.…Just add water!! for more Information call us……Toll-Free! High Desert Pressure Washing Systems.. 1-888-868-WASH (9274)
 
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Hmmmm, I hope you have misprinted but 8 @ 3000 will require 25hp and Honda only makes a 24hp V-twin.
 
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Mike......You are correct and I made the correct change on the horsepower of the Honda from 20HP to 24HP.....Thanks for the helpful input............Dan
 
I have 2 washing units on one trailer , both hot , 5.6 gpm @ 3,500 psi with 20 hp Onan , but if one quites most likely i will still get the job done.

But i thank it would be a great unit to have , You know that law ,what can go worng will go wrong!

I have had both of my washer quite on the same job!

Sorry Gray man just thanking out loud, what are the plus sides.

I'am going to put a cold water washer on my trailer soon , 5,800 psi at 4.75gpm .:)

Mel
 
Re: horsepower

dankes said:
24 hp should be plenty. According to General pump, horsepower required is equal to flow x pressure divided by 1100. So, 8 x 3000/1100 = 22 hp engine.

http://www.generalpump.com/cPump_basics.asp
Click to expand...


Cat Pump publishes the following formula which is MORE ACCURATE!!!

(Flow x Pressure) / 1460 = Electric Brake Horsepower

EBHP x 1.5 = Gasoline engine HP

Why start with EBHP? Becaue there are International Standards regarding the performance of electric motors where any 5 hp is exactly the same as any other. NEMA sets and administers the standard in North America.

There are no performance standards for engines, none.

Using 1100 as the constant is specious because it is based on a THEORETICAL performance level of all components tested. As a quick estimate it may be adequate but it does tend to provide optimistic numbers. That number is most often used by suppliers to 'Big Boxes' who also foist 'Cleaning Units' on the ignorant.

Since EBHP IS a known and repeatable number then it is appropriate to use this as the starting point. The 1.5 factor is based on field experience and represents a gasoline engine HP requirement closer to actual.

A 20hp engine from different manufacturers will perform differently. It has to do with torque rise, RPM, BSFC, atmospheric conditions and so on. This is why you CANNOT and SHOULD NOT use a dubious number to arrive at horsepower figures.

All you have to do is look at the performance differences in Class 8 Heavy-duty diesel engines; a 350hp Mack will always be able to pull with or even out-pull a 400 or higher Cat/Cummins/Detroit.

Hope this prevents errors in the future?

Cheers.
 
Gee Michael,
Your bias is showing. Macks have always been torque monsters, and that is why they pull a load so well. Unfortunately, Torque is not used in our world of small engines. So the question is, where do we find the Brake specific horsepower on small engines?:confused:
 
Scott,

Not wanting to take away from the original post on this thread but small engines do not publish BSHP only Brake Specific Fuel Consumption.

Unfortunately there are no SAE standards regarding small engine performance. This is why you have to do a best guess comparison to Electric Motors which do have standards. Manufacturers rate their own engines and as is human nature will 'fudge' in their favour.

However, torque is what does the work not HP. This is why my beloved Mack trucks work so well because of that fact. On a straight level road HP is all you need. Anytime you require the engine to work then you need torque, more the merrier. In a perfect world we would all be using Kawasaki small engines because of their higher torque rise and lower BSFC; Honda has made that proposition difficult though. Honda does still build a very good engine and their new V-twins are really starting to get a good reputation.

Each small engine manufacturer publishes a graph of torque and HP versus RPM, combined with BSFC you can determine the optimal place to make your engine work in the RPM range.

As to the originator of this post, he did mistype and a 24hp Honda will do the job. I have looked at his trailers and he seems to have applied experience gianed from using machines to clean.

All due apologies to graytruck91 (hopefully a Mack :0 ) for taking his post where it need not go. For those of you looking for a two gun system from someone with experience in cleaning you might just want to give him a call.

Hope this helps? Cheers.
 
pictures of Hydro force II now on our WebSite

We now have added pictures of our new Hydro force II pressure washing system on our WebSite. This is the 8 gpm 2 man 2 gun system..............www.highdesertpws.com. then for more information you can call us toll-free. 1-888-868-WASH.............Dan
 
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