Cutting thick (2") Steel

[mjncad]

How about some pix of that truck?

 

[rhett]

How about some pix of that truck?

times two
amazing
I try calculating flotation with most builds, dead weight only serves as ballast.

on topic = oxy/fuel would be my choice .... 1/2" and thicker, actually oxy/fuel for anything other than sheet metal.... for me anywho...

twas wondering what was the 2 inch thick material was for. Some serious drop loading on the truck, I'd guess??? unless the bed itself was ballast???

MANITOWOC

 

[mjncad]

I remember seeing a Unimog in the 70's that had 2" plate for ballast and a deck. I'll bet that's what's going on here.

 

[bdog]

Here is a picture of the truck and one of the holes I cut out. The torch did well but it was hard to get a clean cut and be able to remove the piece. Took about 4 hours. I have three more pieces to remove hopefully I will get better and go faster with those.

The weight is just to hold the truck down. The unit on the back is a big hammer used for seismic exploration. It beats on the ground with tremendous force and if the truck does not weigh enough the truck will bounce when the hammer hits. The unit is capable of a lot higher output than we ever use or need so we are reducing the weight of it to get the truck under CDL limits.

 

[bdog]

Another pic of truck

 

[Shield Arc]

If you can, and if you have a rose bud, preheat the bottom side. Will make it a lot easier on you!

 

[Stampeder]

In Canada they are called Thumper Trucks.

[ame=http://www.youtube.com/watch?v=Kpda8NJAGSs&feature=player_embedded]Thumper Trucks in New Brunswick... [HD] - YouTube[/ame]

Neat thing is they can all be synchroized to thump together, then they use geophones to pickup the sound reflections from below.
People don't like siesmic crews using explosives anymore.

 

[bdog]

People call those Thumpers but really they are not they are vibrators. No weight is picked up and dropped like a true thumper. The base plate on a vibrator is in constant contact with the ground and just shakes. They can be syncronized as the frequencies they sweep through are computer controlled. A true weight drop thumper can not be syncronized. They have tried and can't get the mechanical aspects of it to sync up time wise.

Dynamite is still widely used. We use the thumper more but use dynamite all the time as well. Often the dynamite is less intrusive as they have some really small drills that don't require near the clearing as you need to get a thumper or vibe through.

 

[Duffster]

Here is a picture of the truck and one of the holes I cut out. The torch did well but it was hard to get a clean cut and be able to remove the piece. Took about 4 hours. I have three more pieces to remove hopefully I will get better and go faster with those.

The weight is just to hold the truck down. The unit on the back is a big hammer used for seismic exploration. It beats on the ground with tremendous force and if the truck does not weigh enough the truck will bounce when the hammer hits. The unit is capable of a lot higher output than we ever use or need so we are reducing the weight of it to get the truck under CDL limits.

CDL limits don't go by weight.

You will need to have the GVWR changed to get under CDL.

 

[bdog]

CDL limits don't go by weight.

You will need to have the GVWR changed to get under CDL.

I have that covered. The bed was mounted on a truck with a 33k gvwr I just moved it to a truck with a 25999 gvwr.