Reliability, stability and strength

D39EX-22

Operating weight 8.520 kg (18.800 lb)
Net flywheel power (SAE) 95 hp (71 kW) @ 2,200 rpm
Blade capacity (SAE) 2.2 m3 (2.9 yd3) PAT

Efficiency and productivity

Unrivaled Blade Visibility: Same as a bigger dozers, the D39EX/PX-22, incorporates Komatsu’s super-slant nose design. Komatsu’s innovative design provides excellent blade visibility for improved machine control and increased efficiency and productivity.

Features

Palm Command Control System (PCCS)

The new Palm Command Control System (PCCS) allows a fully operator-controlled operational environment. Its travel control joystick provides a comfortable posture and great control for the operator, reducing the fatigue. Gearshifting is performed easily through switches. The second joystick, for blade controlling, uses a PPC (Proportional Pressure Control) valve, which combined with its highly reliable hydraulic system, results in a smooth and precise control.

Automatic lock-up torque converter system

When activated, disconnects the torque converter, reducing fuel consumption and enhancing the efficiency of the power train.

ECMV-controlled transmission and brakes

The ECMV (Electronically-Controlled Modulating Valve) allows to connect the clutch smoothly. This reduces shocks while gearshifting and ensures more comfortable rides.

Ecology & Economy - Technology 3

Ecology & Economy - Technology 3 (Ecot3).

Komatsu, following its Ecology and Economy policy, continues to develop engines with high performance low-emission technologies, complying with the most rigorous environmental standards, such as the new EU Stage 3A and EPA Tier III emission regulations (equivalent).

With this technology, Komatsu introduces its new ECOT-3 engines with total electronic control system; fuel injection (Heavy-duty and high-pressure common rail); exhaust gas recirculation (EGR); air to air aftercooler and a new combustion chamber design; and NOx, PM and fuel consumption reducing systems.