Looking for pump
GWR 02-09-2013
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38 to 40m. Preferredly a putz decent low hours an also a z boom. Any info on where one cud be found or if someone has one?
Ne-max 02-10-2013
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Just a heads up if you can get a 38 before a 40.  The smaller pipe on the 40 is a huge down fall. 
GWR 02-10-2013
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So if we'd find a 40z far a good price, wud it be worth it or definely shy away from it??
Trey 02-10-2013
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I have a Schwing 41M with the 4.5" pipe, The only time I wish I had the 5" pipe is on heavy volume pours. My normal everyday pours are new construction, with the trucks 20-30 minutes apart, and I have no problem. I know the pipe is more expensive. So check into that before you make your decision.
Yellow 3 02-10-2013
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40 m putz is a great machine most reach with the smallest foot print. It has 4.6" pipe standard booms are 4.8. We have had ours for 6 years and it has become a machine we couldn't go without. The pipe does wear faster but it,s the compromise you have to make to gain length with a smaller foot print.
Chezpump 02-11-2013
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I have a brand new Concord 40Z all 5" pipe ready to be mounted.... stevec@irvingequipment.net for details
16 CELL 02-11-2013
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4.6" pipe got a bid of a bad rap as the first generation had issues with premature wear. Both Con Forms, and Esser have new (and much improved) versions of 4.6. As far as cost and wear vs. 4.8" pipe, the 4.6 CCI elbows, Backend kits, as well as twin wall deck pipe last seemingly forever, the lengths of boom pipe however are about 30% more expensive than comparable 4.8", and in our experience last only about half as long.

 Standard 5" pipe has an actual inside diameter of 4.8", something to keep in mind when comparing to 4.6" (used by Putz.) and 4.4" (used by both Putz and Schwing) boom systems. We have rarely (if ever) had issues with pumpability due to the slightly smaller 4.6" system on our 40M Putz. This could be partially due to the fact that the system reduces down to 4.6" at the backend (6"-4.6" reducer running alongside the hopper in place of the standard 6"-4.8") rather than mid-boom like some other models that run smaller diameter boom system.

Would be great to see pics. (if anyone's got them) of 4.8"-4.6"-4.4" pipes side by side by side just for comparisons sake.