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Keestrack Frontier K6 vs McCloskey International J40

The Keestrack Frontier K6 is a tracked mobile screener. The McCloskey International J40 is a tracked mobile jaw crusher.

Last reviewed 13 September 2026

Keestrack Frontier K6
Keestrack Frontier K6 - image: Keestrack
McCloskey International J40
McCloskey International J40 - image: McCloskey International

Specifications side by side

Keestrack Frontier K6McCloskey International J40
Weight29,5 t / 32,5 sT36,940 Kgs (81,440 lbs)
Capacityup to 600 t-
Screen box4500 x1800 mm / 15' x 6' (l x w)-
Feed hopper in HB4508,5 m3 / 10 yard3-
Engine79 kW/88 kW-
Feed opening-1016mm (40") x 610mm (24")
Transport width-2.5m (8' - 2")
Main conveyor-3.46m (11' 4.2")

Sources: Keestrack Frontier K6, McCloskey International J40. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the Frontier K6 if...

A tracked mobile screener used by quarries and recycling yards to grade crushed rock, topsoil or aggregate into different size fractions on site.

Full Frontier K6 specifications →

Buy or hire the J40 if...

A tracked jaw crusher used for reducing quarried rock, concrete and demolition rubble to a usable aggregate size on site, rather than hauling waste off for processing elsewhere.

Listed by

Full J40 specifications →

Common questions

What is the difference between the Keestrack Frontier K6 and the McCloskey International J40?

The Keestrack Frontier K6 is a tracked mobile screener; the McCloskey International J40 is a tracked mobile jaw crusher.

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