31" ✕ 20" Compact Tracked Jaw Crusher
The J-3120 is our largest compact Crusher, designed for both mobility and power. It is small enough to fit inside a container for transport but strong enough to withstand the toughest of applications. This crusher features a pair of 31" ✕ 20" single toggle jaws that can be adjusted hydraulically down to 1 3/16" (30mm). There is also a feed sensor, or "magic eye" above the jaws which is used to start and stop the vibrating feeder to prevent blockages and keep the machine running at maximum efficiency.
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Product Specifications

Jaw Size
31" ✕ 20"
Size In
24" X 18"
Size Out
4" down to 1-3/16"
Feed Height
Stockpile Height
Working Size
38′ ✕ 17′ ✕ 9’4″
Transport Size
29'6" X 7'7" X 9'2"
Operating Weight
46,300 lbs to 49600 lbs
Max Ton per Hour
198 tph
Engine Type
DOOSAN D34 Stage 4f or V
Engine Horsepower
135 hp


ARK is a new brand of high quality yet affordable crusher, screeners, and other material processing equipment. ARK equipment is known for great engineering and refinement that has been honed from decades of manufacturing and engineering know how. This experience has resulted in high quality machines that are easy to use, operate, and maintain. From locking door hinges to keep service bays open to touch screen controls ARK machines are known for thoughtful details and simple operation.