Frank Weekly · Issue 15 · October 30, 2026

Why RAP wears jaw plates faster, and Terex is buying Keestrack

Reclaimed asphalt breaks more easily than concrete but still wears out jaw plates faster, Terex is buying Keestrack, and a contractor in Northern Ireland shows how to split a basalt train across two benches.

By Frank Aggregate · 3 min read

Wear parts 2 min read

RAP breaks more easily than concrete and still wears jaw plates faster

A Komplet K-IC70 impact crusher working a pile of reclaimed asphalt
A Komplet K-IC70 impact crusher working a RAP pile. Photo: Komplet America.

Why it wears. The binder in asphalt is soft, so a jaw breaks RAP with less effort than concrete. Once the binder lets go, though, the crushing surfaces work against the original silica-bearing stone.

Which machine. A jaw reduces slab asphalt at about six to one and costs less in wear per ton. An impactor reaches eight to twelve to one and makes a more cubical product.

Which blow bars. High chrome bars, around 650 Brinell, suit RAP because pavement carries no rebar. Valve boxes and manhole frames from full-depth removal can still crack them, so watch the feed.

Cody Price

“Planning around the wrong assumption is what turns a profitable millings operation into a break-even one.”

Cody Price, Operations Manager, Komplet America

Read Komplet's RAP guide

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Acquisition 1 min read

Terex is buying Keestrack and will keep it as its own brand

A Keestrack R5e impact crusher fed by an excavator
A Keestrack R5e impact crusher at work. Photo: Terex.

The deal. Terex announced on Friday that it has agreed to buy Keestrack, a maker of mobile crushers and screens founded in Belgium in 1988 that sells through more than 70 distributors in over 65 countries. Terms were not disclosed.

The brand. Keestrack will stay an independent brand within Terex Materials Processing, the group behind Powerscreen, Finlay and Cedarapids. Peter and Frederik Hoogendoorn stay in leadership roles.

The timing. Terex expects to close in the fourth quarter, subject to regulatory approvals. Until then, Keestrack operates on its own.

Read the Terex announcement

Watch and listen

From the video

Five lessons from a basalt contract crusher in Northern Ireland

  1. Put a stockpile between the jaw and the cones. Each half keeps running while the other is serviced, and no loader works the face.
  2. Run medium coarse, long throw cone liners: about 38 mm on the secondary cone and about 17 mm on the tertiary for shape.
  3. Expect about 1 mm of cone liner wear for every 10,000 tonnes of basalt.
  4. Keep fines out of the cone feed. A fines-heavy 2-inch crusher run slowed the cones, so the original layout stayed.
  5. Buy more screen deck than you need. Large three-deck screens keep chips clean in wet weather and take the dust out twice.

Gary Curran of Northern Rock Crushing & Screening, FinlayTV episode 9. Watch the 25 minute episode

More this week

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What a vibrating screen shows before it fails, and how to work on it safely

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A California quarry adds iPad plant controls and recycles its wash water

QUARRIES · 3 MIN

A California quarry adds iPad plant controls and recycles its wash water

Granite's Handley Ranch makes about 350,000 tons a year. A belt filter press recycles its wash water, and plants manager Scott Maldonado's team is adding cameras, new PLCs and iPad controls.

On clearance this week

New this week: Cedarapids parts, marked down and in stock while quantities last.

Shop all clearance

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