A Telsmith parts clearance, and the screen that flagged its own failure
This week features David Hunter of McLanahan, Helen Sheehy of Sensoteq, and Cody Price of Komplet America.
| Featured this week | People |
Business Line Director · McLanahan
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Minerals and Aggregates Lead · Sensoteq
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CP
Operations Manager · Komplet America
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The screen that flagged its own failure
David Hunter of McLanahan and Helen Sheehy of Sensoteq, Groundwork season 2, episode 15.
Last Thursday McLanahan published a half hour on condition monitoring with David Hunter, its aggregate systems business line director, and Helen Sheehy, who leads minerals and aggregates at Sensoteq. The story worth the listen: a wash plant banana screen started showing abnormal movement on one side in the trending data, which was loading the exciter and bearings. The site went looking and found worn structural components and a broken cleat. The exciter still had to be replaced, but the warning meant parts were ordered and the work happened on a planned shutdown instead of mid production.
The rest is practical. Sensors read vibration, temperature, speed and RPM, and on screens the stroke, motion and G-force. They are wireless, so they retrofit to a plant that has been running for years, and Sheehy's advice is to start with your most problematic assets rather than the whole site. Hunter makes the point that McLanahan's own service agreements put an inspector on site every two to four months, and a lot develops in between. As he puts it, AI cannot change a bearing, but it can tell you which one to look at.
Listen to the Groundwork episode
How much RAP your state actually allows
On Monday Komplet America published a state by state reference on reclaimed asphalt pavement by Cody Price, its operations manager. Every state DOT accepts RAP in some form, and the 2024 NAPA survey counted 101.4 million tons recycled, but how much you can put in a mix is set by the state, not the federal framework.
Maximum RAP in the mix, from the state DOT specs Price summarizes.
The full reference works through six anchor states and covers the binder grade adjustments, stockpile and gradation requirements, and the documentation each state wants behind the material.
A Nordberg package bound for the Pilbara
On Thursday Metso announced orders from GR Engineering Services for Develop Global's Yitirrti copper, zinc and silver project in the Pilbara region of Western Australia. The equipment list is the part worth reading: a Nordberg C Series jaw crusher and Nordberg HP450e cones lead a package that also carries an apron feeder, TankCell flotation cells, thickeners, Stirred Media Detritor regrind mills and slurry analyzers. The concentrator is sized at roughly 1.5 million tonnes a year and is heading toward pre production. Kurt Tiedemann, group principal metallurgist at Develop Global, said getting the process plant right is critical while the project is still in construction.
The delivery scope, item by item, for the 1.5 million tonne a year concentrator.
Up to 72 percent off Telsmith wear parts
The concave above is $2,663, was $9,546. Six pieces.
| Concave | B-272-344C | OEM | -72% | $2,663 |
| 44 Outer Sleeve | AA-272-2438 | OEM | -49% | $3,479 |
| 48FC Lower Mantle | B-272-348C | Aftermarket | -37% | $2,263 |
| 48FC Upper Mantle | E-272-349C | Aftermarket | -33% | $318 |
| 44 Rotary Seal Ring | FA-272-2439 | Aftermarket | -24% | $9,016 |
| 44 Thrust Bearing | 2412-9005 | Aftermarket | -23% | $6,807 |
Ten more in the collection, including a 44x48 OEM jaw die. Sold pieces are not repeated.
States have committed 82 percent of their highway funding
Committed through June, against the five year authorization.
On Friday ARTBA published Treasury data on where the highway money has gone. Through June, states have committed $286.6 billion of their highway and bridge formula funding, 82.5 percent of the total, across nearly 125,000 projects. Congress authorized $347.5 billion over the five years starting in fiscal 2022, and that authority runs out on September 30. Commitments usually accelerate in the final quarter, so expect more to be put to work before then. Congress is working on a short term extension while the next multi year bill is negotiated. For anyone selling into road work, that is the demand picture for the next six weeks.
