Quarry and aggregate maintenance

See the real cost of every liner change-out.

Plate price is the small number. LinerHQ adds install labor and lost production, then turns observed liner life into change-outs per year, annual cost, and cost per ton.

Workbook example · not a customer result

Primary feed chute

Per change-out
$15,710
Change-outs / year
4.17
Annual cost
$65,458
Cost / ton
$0.073

Four sample locations in the workbook total $276,111 a year. The sample alternative on the feed chute saves $31,093 a year if it reaches the life entered in the sheet. Your plant will not match these figures.

Three costs, one change-out

Plate and parts

Plates per change-out times cost per plate, plus bolts, wire, consumables, and crane time.

Install labor

Total crew hours — cutting, welding, lifting, cleanup — times your labor rate.

Downtime

Hours the location is down times lost production per hour, or your standard downtime rate.

How a maintenance manager uses it

  1. 01

    Set the plant

    Operating weeks per year, and plant tons per year if you want an overall cost per ton. The default is 50 weeks.

  2. 02

    Enter each wear location

    Plates per change-out, plate cost, other parts, crew hours, labor rate, downtime hours, and what an hour of downtime costs you.

  3. 03

    Enter the life you have actually seen

    Weeks or tons. If you track tons, add the tons that pass through that location in a year.

  4. 04

    Compare a different plate

    Put in its price and the life you expect. LinerHQ shows annual savings, the break-even life, and how fast the extra up-front cost pays back.

What the comparison actually answers

  • Does the higher-priced plate cost less per year at the life you expect?
  • How many extra weeks of life does it need just to break even?
  • How many weeks until the extra cost of the first set is recovered?
  • How many downtime hours does the longer interval avoid?

LinerHQ does not tell you how long a plate will last. You enter the life — from your history, a trial, or a supplier quote — and the math stays on the server.

Per plant

$79 / month

or $790 per year. 14-day trial. Up to 20 wear locations.

Free accounts keep 3 locations per plant, with no card.

Compare free and paid