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Thread: Lumsden grinder
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30th May 2018, 01:37 PM #1Most Valued Member
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Lumsden grinder
G/day all, I was at my BIL's factory a couple of weeks ago and took some pic's of one of his grinders that he pulled down to replace the grinding head spindle bearings. That bit swinging off the crane weighs about 5 ton.
This is the 5 foot grinder, he also has 3 x 4 foot and an 8 ft. If anyone is interested I can upload some more pic's.
He can get the brgs at a good price and as of this post only has the price for the smaller top brg, $2300
Lucky that moolah is coming outta his pocket and not mine
cheers, shed
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30th May 2018, 02:04 PM #2Diamond Member
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Thanks for the pics Shed, that is an impressive grinder. Really makes the Abbott and Ashby look pretty insignificant, but at least the A& A just plugs into the single phase 240 v power point.
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30th May 2018, 02:49 PM #3Most Valued Member
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Is that a big Blanchard, what kind of work is his bread and butter these days?
Wish him all the best in these times.
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30th May 2018, 07:41 PM #4Most Valued Member
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Yes much the same as a Blanchard, Lumsden is made in England.
Work did slow quite a bit there but it has picked up again, the jobs come from all over, eg. press and die, injection moulding, mining, all types of needs for manufacturing and one offs.
I will post some more pics after tucker time.
cheers, shed
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30th May 2018, 08:52 PM #5Most Valued Member
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some jobs and more of the machines
The 8 ft grinder weights about 35 ton and has 200 hp motor for the grinding head.
I was there on mothers day so I guess that most of the finished work had gone out and these jobs had yet to get got at.
There is a couple of brg housings, some circlips and round and rectangular shapes, sometimes he will have over a hundred small things on the mag chuck bringing them down to the required size.
He has 2 profile cutters in use, one for doing thin stuff as shown here and the other one for doing the thicker stuff.
BHP dont do the thicker plate any more and he has a bit of trouble now sourcing 400mm and up plate, so it comes from china now and they only really want to sell it in bulk, that means you have to plan ahead and have a bit of lead time on those larger jobs now.
I added a couple of pictures of the grinding segments for those that haven't seen them before. When tightening the bolts that hold them in place you tap the segments with a hammer or other suitable bashing implement and listen to the noise the segment makes, thunk = no good and tonk =
cheers, shed
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31st May 2018, 09:08 PM #6Most Valued Member
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Thanks for the pics Shed. The BIL has some awesome machines and capabilities there.
KrynTo grow old is mandatory, growing up is optional.
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31st May 2018, 11:48 PM #7Most Valued Member
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Hi Kryn, no worries I thought some metal heads in here would like to see something a bit different.
Just thought that I'd mention that operating these machines and getting a decent outcome does require a bit of skill/knowledge, like what is the material, is or isn't the material stress relieved, how much meat do you grind before flipping the job?
I mention that because some customers won't pay for stress relieving even though there is a heat treatment joint next door, so the time to grind takes longer because you need to grind shallower and flip the job more often in an attempt at having it flat when you hit your target.
If you want x amount off something you need to know how much wear you are going to get off your segments, so DOC, area sq ft, material type, grinding segment type, maybe temperature, after a few years of grinding I supose you get pretty good idea of whats going to happen but like any business you need to pump the work out to be competitive so you need to know the finer points.
shed
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1st Jun 2018, 09:22 AM #8
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1st Jun 2018, 05:27 PM #9Most Valued Member
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1st Jun 2018, 05:31 PM #10
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3rd Jun 2018, 09:05 PM #11Intermediate Member
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3rd Jun 2018, 09:13 PM #12
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4th Jun 2018, 02:30 PM #13Intermediate Member
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Isn't it Australian constructed cab over?
My FIL had one of the snub nosed ones with a V8 diesel that I used to drive around a bit for him at harvest time with a grain bin on the back. The gearbox action was seriously weird as the lever was more horizontal than vertical, It used to take ages to get used to it.
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16th Jun 2018, 12:09 AM #14Most Valued Member
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The winner for the cheapest price for the 2 bearings at the bottom of the shaft was from the
machine maker Lumsden, $10,500 for the pair......
I think he should also put a spare set on the shelf
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