Im looking to buy a used line pump. Something that pumps 30-70 Yrds per hour. What kind of pumps should I look for and what pumps/years should I stay away from?

what type of jobs are you going to do? pea gravel or big rock?

I have a friend that has 4 putz tk50's and very happy with them.It can do both 3/8th and 3/4 rock and nice machines.

Todd's right what kind of pumping are you going to do,my self I have a 5/45 OLIN ball valve its by far the cheapest to operate wear parts are cheaper I can pump 30 yards and hour their 5/65 will pump 50 to 60 yds perhour but these are pea gravel pumps up to 1/2 inch if you want to pump bigger rock then and S-tube  maybe what you need.

Biged, hey call those guys at Olin see if they will come on board.

I will be pumping all different aggregate. Around colorado we mostly use 3/4 rock and we might get something a little bigger. I will be pumping flatwork do you think that i need much more than 30 yrds an hour?

Ran Olins for a long time, Great service which is very important These days////

Most of the small finishers I deal with 30 yards and hour is about the most they can handle,Todd with you living close to OLIN why don't you pay them a visit, I heard they olny got about six guys working there now.

Good thing about a 30 yard pump is their light, my Schwing 305 weights 3500 LBS next step up is 6500lb I pull mine with A pick up.Haven't had any complaints on too slow. But I have a boom truck for big jobs.

I have a Tk50 if you are interested drop me a line.

Big rock = big hose. Your customer will use you a couple of times but when there guys will not pull that heavy hose anymore he will call a boom next time. 2.5" is heavy enough to drag around a construction site. I can pump 24 yards a hour for slabs. I do a few of them. I use my line pump for specialty type of stuff. I let the big guys pump the volume work and I pick up the crumbs. I charge the same rate as a 32m boom and stay busy. I pump a lot of abandoned pipes, jack slabs, block fill and flowable fill. My Olin 5-45 with 300 feet of 2.5" hose cost about $43,000.00. I wanted a swing tube for big rock but then I thought about the wear parts and the heavy 4" hose and decided to stay with my Olin ball valve that I can pump wide open and have the hose lay perfectly still. All pumps pump but for me I love my pump for it's simplicity, there's not even a grease fitting on it except the wheels. I have 425 hours on this one and have spent $445.00 in wear parts last week.

79 Tell them about your balls .

Personally speaking, I would not purchase a ball valve pump, with a swing tube you have a lot more mixes you can pump and you can pump 3/4 thru 2 1/2 System, cheaper for your customers because they can use 5 sack Vs 6 sack, like I said my preference///

Can you reduce a swing tube down to 21/2" hose or is the stroke a problem? Should be able to have the best of both worlds. How stiff can you pump with a ball valve,doesn't make a difference?

You can go down to 2 inch hose and pump pea gravel with a swing tube and you can go with 4 inch and pump structural mud, and every thing in between. I ran 3.5 for structural and 2.5 for residential and 2.o for grout. You can get low slump numbers with pea gravel but it is dependent on the mix///

I found a Olin 1535 with 3" system for sale and it says it can only pump 3/4 max.The outlet pipe diameter is 4". I thought that the swing tubes could do more than that? The biggest I will be puming is 3/4 but I don't want to be max out.  Also wondering how much you spend on maintenance each year?

My name is mark if you care to contact me, i know where a couple of trailers for sell great shape, im a tech, i just reconditioned 1 right price too.

concrete461@yahoo.com

Thanks have a great day

www.olinpump.com/svalve_specs.html Olin S tube spec link

There are many good trailer pumps on the market. S tubes are all somewhat the same. As long as you buy name brand and get a pump that is in good shape. One thing to check is the hours on the machine? Also the wear parts such as , thickness of the tubes, condition of the hopper and cutting rings, BUSHINGS on the S tube, hydraulic oil condition, generals like motor condition oil leaks. Among many other things. You get what you pay for. I paid 30 k for my slightly used schwing. If it were me I'd buy a schwing 305, 500, or 750. with low hours. A good machine doesn't cost that much for wear.

Another good line pump is Transcrete their wear parts last longer  and with a s-tube line pump your stroke lengths are shorter than a boom pump so it takes more strokes to pump and that wears parts faster, cutting ring and plates cost a bunch plus tear down time is about 8 hours for two men verses a ball valve parts are cheaper and tear down may take two hours max, good pumpable mud is not cheap.