Komatsu PC308 US-LC-3 Hydraulic crawler excavator * Manufacturer: Komatsu * Model: PC308 * Common full designation: PC308US-LC-3 * Machine type: Hydraulic crawler excavator * Configuration: Tight/short-tail-swing * Operating weight: Approximately 33,178 kg * ROPS operator cabin * Crawler-track undercarriage * Designed for excavation, trenching, earthmoving, construction and work where reduced tail swing is advantageous. 🔧 Engine * Engine: Komatsu SAA6D107E-1 * Type: 6-cylinder diesel * Displacement: 6.69 L * Cylinders: 6 * Bore × stroke: 107 × 124 mm * Rated power: Approximately 149 kW / 200 HP depending on specification * Earlier published PC308US-LC-3 specifications also quote approximately 179 HP; this difference reflects specification/measurement differences between markets/configurations. * Maximum torque speed: Approximately 2,050 rpm * Turbocharged diesel engine * Liquid-cooled * Direct fuel injection ⚙️ Hydraulic system * High-capacity hydraulic system * Hydraulic-powered boom * Hydraulic arm/stick * Hydraulic bucket * Hydraulic swing system * Independent hydraulic track motors * Auxiliary hydraulic circuit available depending on configuration * Designed to operate buckets, breakers and other attachments * Hydraulic system provides high digging and lifting capability 🪣 Bucket * Standard bucket capacity: Approximately 1.63 m³ * Bucket width: Approximately 1,372 mm for the referenced configuration * Bucket options available for different materials/applications * Digging bucket * Heavy-duty bucket options * Breaker/attachment compatibility depending on hydraulic configuration. 📐 Dimensions * Transport length: approximately 9,545 mm * Transport width: approximately 3,590 mm * Transport height: approximately 3,280 mm * Track shoe width: approximately 850 mm * Operating weight: approximately 33.2 tonnes * Exact dimensions vary with boom, arm, bucket and track configuration. ⛏️ Digging performance * Maximum digging depth: approximately 7,560 mm * Maximum horizontal reach: approximately 11,185 mm * Large digging envelope for its weight class * High bucket breakout force * Strong arm crowd force * High lifting capability * Suitable for deep trenching and large excavation work. 🔄 Tight-tail-swing design * One of the main advantages of the PC308 is its reduced rear swing * Counterweight extends only a limited distance beyond the track area * Allows the machine to work closer to: * Roads * Buildings * Trenches * Walls * Other equipment * Particularly useful on restricted construction sites * Komatsu marketed the PC308USLC-3 specifically as a tight-tail-swing excavator. 🚜 Tracks & undercarriage * LC crawler undercarriage * Heavy-duty steel tracks * Approximately 850 mm track shoes * Independent left/right travel * Hydraulic travel motors * Heavy-duty final drives * Designed for construction-site conditions * Large counterweight for stability * Track system provides good stability during excavation and lifting 🏎‍🟀 Travel * Two-speed travel system * High travel speed: approximately 5 km/h * Low travel speed: approximately 3 km/h * High/low travel selection * Independent crawler control * Strong gradeability depending on ground conditions and configuration 🎛️ Operator cabin * Enclosed ROPS cabin * Adjustable operator seat * Joystick controls * Travel pedals/levers * Instrument display * Engine monitoring * Hydraulic-system monitoring * Warning indicators * Large windows for visibility * Air-conditioning/heating depending on market/specification * Suspension seat depending on configuration 🕹️ Controls * Pilot-operated hydraulic controls * Two joystick controls * Boom control * Arm control * Bucket control * Swing control * Independent left/right track controls * Auxiliary attachment controls depending on equipment * Multiple working modes depending on machine configuration 🛠️ Working modes * Excavation/standard digging operation * Economy-oriented operation * Heavy-duty/high-power operation depending on configuration * Attachment operation where auxiliary hydraulics are installed 🛡️ Safety * ROPS operator protection * Emergency stop/safety systems * Hydraulic safety features * Travel alarms depending on configuration * Engine and hydraulic warning monitoring * Large operator visibility area * Safety lock lever for hydraulic controls * Stable crawler undercarriage * Operator protection structure 🔌 Attachment capability The PC308 can be configured for: * Standard digging bucket * Heavy-duty bucket * Hydraulic breaker * Hydraulic thumb * Grapple * Ripper * Other hydraulic attachments * Quick coupler where equipped * Auxiliary hydraulic lines where installed 🏭 Typical applications * Large-scale excavation * Road construction * Foundation excavation * Building-site preparation * Deep trenching * Drainage work * Sewer/water-line work * Earthmoving * Demolition * Quarry work * Forestry/land clearing with suitable attachments * Material handling with appropriate configuration ⛽ Fuel * Fuel: Diesel * Large fuel tank suitable for extended construction operation * Fuel consumption varies significantly with load, attachment, working conditions and operator technique. FOB - $ 20,000 USD