Robotic milking

Peter

Member
Trade
View attachment 736010 View attachment 736012

Have started loctiting them when I do them up now but it’s difficult to get them really tight without undoing the next one along the line. The reason they said it would take so long to change over was they were going to use the existing mountings and stainless pipe and just cut the DIN couplings off and reswage/weld the Triclover couplings on.

I have had 2 swaged couplings blow off, luckily only on the dump line and ended up just tacking them back on with a arc welder as that was all we had available and have been fine since, wouldn’t want to do that on a main discharge lines.
What kind of gaskets? silicone or Buna
 

Peter

Member
Trade
Is it the nut coming loose and leaking at the gasget or the fitting onto the pipe?
That type should be leak proof and reliable. Took out a chiller a few years ago with those. It had run 10yrs with no leaks.
 

Scholsey

Member
Location
Herefordshire
Is it the nut coming loose and leaking at the gasget or the fitting onto the pipe?
That type should be leak proof and reliable. Took out a chiller a few years ago with those. It had run 10yrs with no leaks.

A blue rounded o ring, not sure what material it is made out of. Apparently they have more of a issue with them coming loose with the new merlins than the old ones, said it could be something to do with resonance from the purge or milk pump or could be complete rubbish i dont know. Are there any advantages to the silicon/plastic continuous discharge line or are they just cheap and easy and thats why they are used?
 

newholland

Member
Location
England
@Scholsey Could you not clamp a locking bar through the c spanner teeth cut outs somehow? - held in place with a jubilee clip either side perhaps. Or what about just tightening a jubilee clip clamped at an angle over both parts of the fitting?
 

Stuart1

Member
After checking and double checking everything you guys suggested yesterday seems to be fine. Could it be coincidence? My heads pickled looking for solutions.
 

Peter

Member
Trade
A blue rounded o ring, not sure what material it is made out of. Apparently they have more of a issue with them coming loose with the new merlins than the old ones, said it could be something to do with resonance from the purge or milk pump or could be complete rubbish i dont know. Are there any advantages to the silicon/plastic continuous discharge line or are they just cheap and easy and thats why they are used?

Just out of curiosity is there a manufactures stamp or country on the stainless fitting?

Main advantage of the plastic line is
the only connections would be at the ends. Many fewer potential leak points - connections do need to be made properly or there will be bacterial problems.
Is slightly larger inside diameter than the 1" OD stainless pipe, easier flow for pumps
higher thermal resistance so less heat loss during wash. Should be insulated like your stainless should be.

Disadvantages
Needs support about every 12in. It will sag causing low points to trap wash water. Sleeve or conduit or a lot of pipe straps. Caution on strap contact for next point -
Thermal expansion - a 50m run will grow by many meters when the hot wash hits it. Space for expansion must be made for at the ends.
Will have a finite life span. Chemicals, UV-light, animals, mechanical damage will eventually break it down.

Do your research before you make a decision. Somebody else did not or you would not be having this problem.
Manufacturers make mistakes, that's a fact of life. Its how they stand behind them that sets them apart.
 

Peter

Member
Trade
After checking and double checking everything you guys suggested yesterday seems to be fine. Could it be coincidence? My heads pickled looking for solutions.

Study your T4c- could give you clues - change in dead milk times, change in milking times,Conductivity., etc It keeps track of a lot of data
watch teat spray, nozzle partly blocked poorly spraying that quarter. Change the liner, and twin tube on that quarter.
Did you find the filters on the pulsation line?

Get the tech in and get pulsation and milking vacuum tested. Could be a problem in the pulsator itself. Don;t put it off too long. Get fixed will it is a small problem before it becomes a big problem.
 

Stuart1

Member
Study your T4c- could give you clues - change in dead milk times, change in milking times,Conductivity., etc It keeps track of a lot of data
watch teat spray, nozzle partly blocked poorly spraying that quarter. Change the liner, and twin tube on that quarter.
Did you find the filters on the pulsation line?

Get the tech in and get pulsation and milking vacuum tested. Could be a problem in the pulsator itself. Don;t put it off too long. Get fixed will it is a small problem before it becomes a big problem.

I’ve studied everything for hours. Yes the filters in the pulsation lines where all clean & free inside. Getting the technician in is my next step, il be calling them today.
 

Peter

Member
Trade
Another two robots roll into a new barn

20181109_154930.jpg
 
Any of you boys (or girls) harvesting your water from the plate cooler into a water tank, to then plum to a couple of water troughs (to help with water in freezing themes) and also into your robot water heater? If so, what size of a water tank did you use?
 
Any of you boys (or girls) harvesting your water from the plate cooler into a water tank, to then plum to a couple of water troughs (to help with water in freezing themes) and also into your robot water heater? If so, what size of a water tank did you use?

All cow drinking water goes through 2 stage plate cooler into 3 drinking troughs down through the shed. No tank. There’s a 20 second over run so they never get low. Works well. Only down side if none of the cows hasn’t drank anything then there’s nowhere for water too go so plate cooler doesn’t work on stage 1. That would be very rare though.
 

pappuller

Member
Livestock Farmer
Location
M6 Hard shoulder
Any of you boys (or girls) harvesting your water from the plate cooler into a water tank, to then plum to a couple of water troughs (to help with water in freezing themes) and also into your robot water heater? If so, what size of a water tank did you use?
Twin tube coolers here, 3 ibc on loft all cooler water goes into then and then pumped to all water troughs, warm water will freeze quicker than cold apparently
 

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