We were looking to add 40 ft of reach 1 90 sweep and19 ft stab pipe to a 50m. All of the pipe would be 5". What would be the safest way to rig the to a crawler? Also so can a trapeze be use in a vertical application. PLZ post links and or PICS. TY

Nice Picture Dipstick

Nordic misunderstand ( slow pumping to a crawl?} maybe if that's what you mean, drop a gear and pump slow?

Yes this pic helps alot dip. Do you need a counter weight to balance the stab pipe?

Now this is frowned at, I will find some papers on doing this sometime today. I know it can be very dangerous and can hurt the boom if your not careful

Make sure you read this

http://www.concretepumpers.com/pdfs/NoCraneUse.pdf

You better reed this one. Before we start al over again.

http://concretepumping.com/index.php?mode=newboard&act=topic&tid=7769

keep in mind these newer booms are made much lighter,meaning more flex and easier to damage.The damage may take a long time to surface,months or even years.

Whit our indepent crane boom you can keep your hose on the deck.

Hose on the deck al the time.

But personal I prefer this one. Les stres for the operator.

I did read that other blog and Ty Todd for the info but this is the only way we can place this concrete. I wish there was a larger footprint for a 61m. I feel that this means of pumpin is safer then short sticking out riggers. By the way we are working with self consolidating concrete in a wall so the crane would only need to move up and down.

Cool Cool my friend, we are all praying for you. 

We were using a Pipe Spreader on one job that had a big footprint.  We used it several times on the job, so when we finished pouring, we laid it out in a field and would get it when we were ready to pour again.  The next day we all showed up and lifted the spreader up on the deck and hooked it up. When we primed out a skunk came out of the end of the hose and landed right in the middle of some freaked out finishers.  After everyone stopped running around, they put a bucket over the skunk and threw it off the bulding.

Back then we were just starting to use the pipe spreader and we would hook them up to anything from hydraulic cranes to conventional cranes.  Now a days, depending on who you talk to, they don't suggest using a pipe spreader at all.  At the least they say use it with a tower crane only, because of the surge in the system.  I'm not sure if they've had any accidents, or damage, or what.  Years ago we just placed the concrete anyway we could.  Just make sure, like dipstick said, make sure you have a bend in your tip hose,and the hose that hooks up to the pipe.  Turn the volume down, and make damn sure to have good communication with the crane operator.