KOMATSU PC128US-2 CRAWLER EXCAVATOR

Technical Description

The Komatsu PC128US-2 is a compact hydraulic excavator engineered for operation in confined spaces and congested work areas. Powered by a turbocharged Komatsu S4D102E engine, this machine delivers 64 kW (86 HP) at 2,200 rpm with a displacement of 239.3 cubic inches. The excavator features an operating weight of approximately 13,000-13,370 kg and operates on a 24-volt electrical system with a 25-amp alternator. The machine's modular boom and stick design offers three configuration options to suit various job requirements. Configuration 1 provides a maximum cutting height of 29.4 feet and digging depth of 16.5 feet, while Configuration 3 extends capabilities to 31.9 feet cutting height and 19.4 feet digging depth. The hydraulic system operates at 5,050 psi with a pump flow capacity of 59.8 gpm and total fluid capacity of 18.3 gallons. Bucket capacity ranges from 0.18 to 0.55 cubic meters, with a reference capacity of 0.45 cubic meters. The lifting capacity reaches 1,150 kg at maximum reach with a 3,020 kg counterweight providing exceptional stability. Key undercarriage specifications include 42 shoes per side, ground pressure of 6.3 psi, and a maximum travel speed of 3.2 mph. The swing mechanism operates at 11 rpm with a minimum tail swing radius of 4.9 feet, making this excavator particularly suitable for work in tight jobsite conditions. Fuel capacity of 52.9 gallons ensures extended operational periods between refueling.