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The newly designed Komatsu BR580JG-1 mobile crusher looks simple but is very powerful. The upgraded Komatsu designed crusher offers maximum production capacity.
High-performance jaw
The KCJ4430 large-capacity jaw crusher provides maximum crushing capacity in this class along with easy maintenance. In addition, Komatsu’s locking cylinder mechanism allows you to change the discharge clearance with a simple one-touch adjustment and also facilitates the removal of clogged foreign material from the discharge side.
Newly designed vibrating grizzly feeder
The vibrating grizzly feeder moves the material elliptically, so it can be effectively separated and fed evenly into the jaw.
HydrauMind hydraulics and all-hydraulic drive system
Fully hydraulic drive system gets you working right away. The HydrauMind system supplies the optimal amount of oil through load-sensing and pressure-compensated valves.
Large-capacity hopper
The 2625 mm 8'7" x 4400 mm 14'5" feed hopper is accessible from three sides for material loading.
KOMTRAX equipped machines can send location, SMR and operation maps to a secure website utilizing wireless technology. Machines also relay error codes, cautions, maintenance items, fuel levels, and much more.
High-speed, large-capacity conveyor belt
A 1050 mm 42" wide conveyor belt travels at 120 m 394' per minute. The discharge height is 3000 mm 9'10".
SAA6D125E-5 turbocharged after-cooled diesel engine provides 257 kW 345 HP net for superior crushing power and is EPA Tier 3 and EU Stage 3A emission regulations certified.
Emergency shut-off buttons are installed on both the left and right sides of the chassis, on the control panel, and on the standard radio remote control.
Sprinkler nozzles are standard at the jaw entry, jaw discharge, and main conveyor discharge with a common hose connector.
Outstanding mobility
Hydraulic steering and high-travel speed make the machine easy to relocate. The BR580JG-1 uses the same track undercarriage as Komatsu’s hydraulic excavators.
Hydraulic conveyor lifter in the up position ensures adequate ground clearance even on rough ground. The mobile crusher uses a new interlock system that controls travel and crushing operation, depending on the conveyor’s position.

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