5
E
ASY
M
AINTENANCE AND
S
AFETY
Maximum reliability and minimal maintenance
In addition to the spacious clearance of 530 mm (1'9")
between the jaw crusher and the conveyor belt, the crusher’s
bottom area is sealed with covers. This construction design
prevents re-bar from being caught by the crusher’s member
structure. Wide openings on the side frames also ensure easy
access to the space below the crusher to remove clogged
foreign material.
Comfortable design
●
To prevent dust, sprinkler
nozzles are provided as a
standard attachment at the top
of the jaw crusher (the water
tank & spraying system is
option).
Safety
●
Anti-slip plates
Highly durable anti-slip plates
maintain superior traction.
●
Thermal and fan guard
Thermal and fan guards are placed around high-temperature
parts of the engine and fan drive.
Ease of operation
●
All the switches necessary for operation are located on the
main control panel, making it easier for the operator
standing on the ground to reach and safely control the
operation. As the control system is equipped with the one-
touch start feature, all you have to do is press the start
switch. This simple operation will sequentially start the
operation of the magnetic separator, belt conveyor, jaw
crusher and feeder.
●
The multi-function monitor displays the status of all
components in real time. With this monitor, you can easily
identify the location of a problem.
●
Radio remote controller (Option)
With this controller, you can change the
mode between “Travel” and “Operation”,
while remaining onboard the excavator.
You can also use it to operate the
one-touch start feature.
4
P
RODUCTIVITY
F
EATURES
BR380JG
-1E0
MOBILE CRUSHER
BR380JG
-1E0
M
O B I L E
C
R U S H E R
Equipped with an eco-friendly engine
Equipped with the SAA6D107E-1 engine, this new mobile
crusher has a nominal output as high as 140 kW (187 HP).
The latest KOMATSU engine technology for construction
machinery, “ecot3”, greatly reduces NOx emissions. This eco-
friendly, clean engine, complies with various emission gas
standards, including the EPA Tier 3 requirements in North
America and the EU stage 3A requirements in Europe.
New Komatsu Jaw Crusher largest in its class
The large-capacity jaw crusher, KCJ4222, is another
successful example of Komatsu’s development efforts.
Crushing efficiency is improved dramatically with the
installation of a load-presetting semiautomatic feeder system
and the increased crusher rotation speed.
High-speed, large-capacity conveyor belt
The high discharge height of 2800 mm (9'2") makes it easy
to configure a system with stock pile conveyor and screens.
With its width of 1050 mm (42") and a belt speed of 120 m
(394') /min., the belt conveyor has a high volume capacity. In
addition, the conveyor reverse mode is provided to facilitate
the removal of jammed foreign material.
The first hydraulic crusher protection mechanism
in the world
Jaw crushers typically protect themselves by bending toggle
plates when they are clogged or jammed with metal or wood
debris. The KCJ4222 protects
itself by allowing the locking
cylinders to fully open the
discharge port, which makes it
easy to remove clogged foreign
material from the crusher.
(Patent pending)
Large production capacity
Komatsu’s original large-capacity jaw crusher and the most
advanced control systems have considerably increased its
output capacity, making it easy to manage large workloads.
Fully automatic discharge setting adjustment
system
The jaw crusher is equipped with an automatic discharge
setting adjustment system that makes it easy to change the
opening of the discharge port. Even as both of the jaw plates
or one wear, you can adjust the discharge setting with a
simple one-touch operation (adjustable within several
minutes) with this automatic system. On the monitor panel,
you can choose one of the three adjustment modes. (Patent
pending)
High mobility
The conveyor elevation system insures a high minimum
ground clearance, which provides the crusher with
outstanding maneuverability at any crushing site. In addition,
improved configuration location of the guide handle makes it
much easier to operate the conveyor lifter.
The mobile crusher uses a new interlock system that controls
the travel operation, to prevent the conveyor from being
dragged or colliding with the ground depending on the
conveyor’s position.
Sprinkler Nozzle
Feed opening:
1065 mm x 550 mm
42" x 22"
2800 mm
(9'2")
KCJ4222 Jaw
Mode A: Input a desired value
for the discharge
setting.
Mode B: Increase or decrease
the current discharge
setting.
Mode C: Press the manual
switch to increase or
decrease the present
discharge setting.
Link plate
Fixed link
Locking cylinder
Minimum ground
clearance
Traveling:
200/300 mm (7.9"/12")
Crushing:
100/200 mm (3.9"/7.9")
* “Traveling” is prohibited by interlock when the
ground clearance is 100mm (3.9").
Conveyor Elevation System
Opening In The Engine Side
Opening In The Crusher Side
(both sides of undercarriage)
Main Control Panel
Traveling Mode
Crushing Mode
Photo may include optional equipment.
