Newest Custom Build Project for Green Knight, LLC

I think our versions of oilfield rigs are quite different.

The Chalwyn or Positive air shut off valves as they are called are mandatory on all diesel engines that go into the oil field. If you don't have them, you get kicked off site and sent home. Its a safety thing, but that is how the industry has decided to set its standard so every diesel engine gets it.

I never mentioned splitting the pumps, I only talked about combining the output of the both pumps to one wand. 10 gpm vs 5 gpm with proper nozzles of course.

Up here the typically oil field rig is a tandem heavy truck with full lockers. You carry 1200-2000 gallons of water, and your primary method of cleaning is steam. The boxes on the trucks are insulated with bunk heaters, and there is always an extra side tank with diesel which is typically 40-80g. Different climates and availability of parts have led to many of the differences, but this is how oilfield trucks are viewed up here.

I also comment as I run a custom built setup that I put together myself of a 35 hp briggs gas with two ts2021's on either side. I have run the setup from 100`f to -35`f and since I am the maintainer/fixer I have seen what works, what doesn't, and whats best for trouble shooting. You guys have run these rigs I am sure on your own pressure washing businesses and seen what works and what doesn't for these setups I would assume as well.

Anyhow, I am still very interested in seeing how that 5 ton truck setup turns out in the end.
 
Yeah you are right, we are worlds apart as to what is required to operate in the oilfield, for instance nobody uses steam down here, incidentally the one unit I built at beginning of the year was a steam unit and they were required to have the chalwyn valve (not here ever) also everything is on an open trailer, everything up there is enclosed...anyhow I appreciate the input!
 
Hardwaresteve said:
View attachment 25569View attachment 25570

Unit on the left is a 220V, 3-phase, for a shop. Unit on the right is a cold water unit, that runs on a propane converted Honda engine, and has a mobile aluminum cart, went into a factory setting.
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How stable is the cart? I use lands mhp's with wheel kit and reel kit.

I'm curious about this


Oct event San Diego free free text me for more details !!
 
It was stable, no problems at all, it would walk around if you didn't lock the wheels, the big issue for this customer was getting it through a certain door size....and not having to be Hercules to move it about. We built the cart out of aluminum, converted the engine to propane, and made it so all they had to do was hookup the water. The trickiest part of the build was converting to propane.
 
.Shore Sentry's macnine 4.jpgPhoto0008.jpgPhoto0200.jpgPhoto0196.jpgPhoto0209.jpgPhoto0214.jpgHey Kristopher, my name is Matt and i'm with Green Knight. Steve convinced me I needed to get on this forum so here I am making my entrance. I have a few more pic of some rigs we have built along with a stationary unit. I really enjoy designing and building unique equipment but as you can see by the first 2 pics we build basic machines to. I have sever other pics i will share if wanted.
 
I like the see thru cover on that pump with the exposed pistons.
 
We have built machines ranging from 1 gpm to 88 gpm (thats the red giant pump in the pic) and from 800 psi to 7300 psi. The customer really determines what they get. We do offer suggestions to head off any potential problems, like 5000 psi will blow paint right off a car or 2.5 gpm won't be cleaning mud off very good. But as long as YOU KNOW our concerns, we build a machines to your specs (gpm, psi, footprint). Our machines WILL be built with all the safety's in place, there are no exceptions to that.
 
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The customer has to carry other items in the box for what they do. They are a accident cleanup company and the interior is shelved out with tools. They already had a water tank in the box and were crowded for room, so they wanted to put it under the box. Not to many people want to build units per spec, but that's what we specialize in, along with our own custom designed units like the "Gauntlet".
 
You are better to get a 10 gpm 6000 psi skid and just turn the throttle down and unloader and a nozzle change wouldn't be bad either. You are not going to get 10 gpm and 6000 psi from the setup you have now due to engine size and of course the wrong pump. This is possible, but you would need a custom setup.

In terms of that truck, that box was not huge, but the truck was at most a 5 ton truck, how big was the tank inside? The local fleetwash runs 18-20ft boxes on the 5 ton trucks and easily fits the pressure washer and tanks in there. I know these guys keep the trucks legal as they have to go on the scales. I know you might not be supplying the tank, just keep in mind if the truck is over weight and something happens legally it could come back to you.
 
"""In terms of that truck, that box was not huge, but the truck was at most a 5 ton truck, how big was the tank inside? The local fleetwash runs 18-20ft boxes on the 5 ton trucks and easily fits the pressure washer and tanks in there. I know these guys keep the trucks legal as they have to go on the scales. I know you might not be supplying the tank, just keep in mind if the truck is over weight and something happens legally it could come back to you.""""

Benjamin, they have a 330 gal tank in their truck.These guys are not fleet washers and don't regard themselves as commercial washers. They only use their pressure washer occasionally. But when they need it they like to have one that will get the job done quickly. The back of the truck is FULL of shelves and all the environmental "stuff" they use. They are currently using a cold water in this truck to save room, they have another truck with a standard skid unit in it and don't like how much space it takes up, the fact they have to carry gasoline in an enclosed area and the gasoline seems to be spoiling quicker than it used to (not 100% sure it is, but it is definitely dirtier than used to be). This unit might set for a month without being used, but in that same time the truck will have run all over the state of Texas. Here again we lay out all the pros and cons to our customers and as long as the design is safe and yes LEGAL, we will build it.
 
Benjamin said:
You are better to get a 10 gpm 6000 psi skid and just turn the throttle down and unloader and a nozzle change wouldn't be bad either. You are not going to get 10 gpm and 6000 psi from the setup you have now due to engine size and of course the wrong pump. This is possible, but you would need a custom setup.

Throttling down a machine is alright if it is a cold water or gets the power for the burner from a power source not being generated by the pressure washers motor. But if you throttle down a hot water skid unit whether its 12 volt or 120 volt you will run into all kinds of electrical problems. Just my 2 cents
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