Hydraulically Controlled Wet Multiple-Disc Brakes
and Retarder
Wet multiple-disc brakes have been proven on Komatsu
dump trucks and wheel loaders ensuring highly
reliable and stable brake performance. The large-capacity,
continuously cooled,wet-multiple disc brakes also function as
a highly responsive retarder which gives the operator greater
confidence at higher speeds when travelling downhill.
Retarder Absorbing Capacity (continuous descent):
405 kW
544 HP
583 kW
782 HP
(with optional exhaust retarder)
Large Capacity Body and Box
Section Frame Structure
The 19.8 m
3
25.9 yd
3
heaped capacity
is among the highest in its class. The
low loading height of 2840 mm
9'4"
enables easy loading. The body is built
of thick wear-resistant steel with a
Brinell hardness of 400, and the body
shape provides excellent load stability.
Rugged enough for the toughest jobs,
the HM350’s frame is designed using a
rigid box structure with high strength
low alloy steel.
Articulated Steering
Fully hydraulic articulated
steering offers low-effort
operating performance and
maneuverability. A mini-
mum turning radius of only
8.4 m
27'7"
provides the free-
dom to move about in confined
areas.
5
HM350-1
ARTICULATED DUMP TRUCK
8.4 m
27'7"
Hydro-pneumatic Suspension
The hydro-pneumatic suspension has been proven on
Komatsu’s rigid dump trucks. The front axle hydro-pneumatic
suspension employs "De Dion" type design, allowing the
machine to ride more smoothly over
bumps. The rear-axles are mounted on a
dynamic equalizer structure equipped with
hydro-pneumatic suspension. The entire
vehicle’s suspension delivers a comfortable
ride and maximizes productivity.
