Wear note
The one-line parts brief
One sentence naming the wear problem beats a fifteen-page RFQ.
By Ms Lerato Dlamini, Wear notes lead
Ms Lerato Dlamini leads wear notes at Crusher Consumables, giving plant leads practical advice on tackling tough, abrasive feeds that hammer crusher parts.
AuthorWhy this matters on the plant
In my years working with crusher liners, I have found that the clearest technical problem descriptions save everyone time and reduce downtime. There is no need for a massive RFQ document when one well-aimed sentence about the actual wear issue on your cone mantle tells us all we need to know.
Why a single sentence matters
On most plants, the actual wear issue is obvious to the person on site, but it often gets buried in endless paperwork. An operator might spot uneven wear on the feed side of a cone mantle, but if that key sentence is lost in a flood of forms, we can end up quoting the wrong profile or the wrong grade of manganese. In the Highveld, especially during Eskom power cuts, there is pressure to get crushers back up and running fast. A clear sentence like 'feed side upper third is scalloping after 180 hours' instantly directs us to look at feed presentation, nip angle or even the closed side setting before we even pull the part.
What should the key sentence include
To help us, your main sentence needs to name the part, the wear pattern, and when it happens. For example, 'mantle is grooving on the discharge side after each campaign' or 'mantle shows rapid wear just above the bottom dead centre'. This single detail can tell us whether you are choke feeding, if the feed is misaligned, or if the chamber profile is not right for your material. Even noting 'work hardening not happening, mantle is soft at removal' helps us suggest better manganese grades or look at feed size and distribution.
- Part name and location (e.g., 'upper mantle edge')
- Observed wear pattern (e.g., 'scalloping', 'grooving', 'cratering')
- Timing or campaign length (e.g., 'after 2000 tonnes')
- Feeding conditions (e.g., 'dry dolomite', 'wet granite')
- Any recent changes (e.g., 'switched to broader CSS last month')
Common mistakes we see on South African plants
A mistake we often see is focusing only on the liner part number or the machine serial, while ignoring the actual crusher operating conditions. For example, on the Lowveld gold plants, mantles might wear badly on one side because the feed chute is misaligned, but the RFQ just asks for the standard OEM profile again and again. In Cape coastal quarries, high humidity and salty air can cause premature corrosion under scale, but unless the problem is spelled out, the wrong liner material gets quoted. Forgetting to mention if the crusher is running recycling one week and hard rock the next can lead to poor performance.
How we use your wear description
When we get a clear, specific sentence about your wear pattern, we can advise on chamber profile, work hardening, manganese content, or even back up with ceramic inserts for severe impact. We will check if the closed side setting suits your material and whether the lifting lugs and liner bolts are up to spec. If your mantle is wearing unevenly, we may recommend better feed distribution or suggest a backing compound suited to your conditions. For safe, quick changeouts in Joburg or Durban humidity, we can also guide on torque checks and lockout procedures. Email us your clearest wear description and we’ll help you from there.
Related parts: Cone Mantle Liner. You can also browse all parts and plant guides.
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