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Komatsu RC-100 Excavator Overview
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Machine Description
The Komatsu RC-100, also known as the PC 100 series excavator, is a well-regarded medium-sized excavator designed for a broad range of construction and excavation work. It is favored for its balance of power, hydraulic efficiency, and versatility in digging, lifting, and demolition tasks.
Engine and Power
  • Equipped with an engine delivering approximately 81 horsepower, providing sufficient power for heavy-duty site work.
  • The engine complies with industry standards for fuel efficiency and emissions, supporting longer operational cycles.
Hydraulic System
  • The hydraulic system features a maximum flow rate close to 248 liters per minute, ensuring smooth boom and bucket operation.
  • Relief valve pressure is typically around 2,500 psi, managing hydraulic pressures within safe and efficient limits.
Weights and Dimensions
  • Operating weight stands near 11,100 kilograms (about 24,460 pounds), balancing stability with mobility.
  • Track gauge is roughly 1,960 mm and track length about 3,300 mm, contributing to stability during digging and lifting operations.
  • Overall machine length measures approximately 7,170 mm with a tail swing radius around 2,130 mm aiding in maneuvering confined spaces.
Performance Capabilities
  • Maximum digging depth reaches up to 5,000 mm, supporting a variety of excavation depths.
  • Bucket capacity is approximately 0.67 cubic meters, ideal for medium-scale earthmoving tasks.
  • The lifting capacity is roughly 5,300 kilograms, enabling effective material handling.
Fuel and Maintenance
  • The fuel tank capacity holds about 230 liters, supporting extended jobsite activity with fewer refueling stops.
  • Hydraulic tank capacity of about 145 liters (with 100 liters in the hydraulic oil tank) ensures ample fluid for sustained hydraulic performance.
  • Regular maintenance points are accessible for quick service and reduce machine downtime.
Applications and Usage
  • The RC-100 suits construction, site development, trenching, and demolition.
  • Its dimensions and power make it effective in urban or confined areas requiring precise operation.
  • Often chosen for jobs requiring a blend of excavating strength and maneuverability.
Glossary
  • Track Gauge: Distance between the left and right tracks influencing stability.
  • Hydraulic Flow Rate: The volume of hydraulic fluid delivered to the actuators per minute.
  • Relief Valve Pressure: Safety limit controlling maximum hydraulic pressure.
  • Operating Weight: Total machine weight including fluids and attachments.
  • Tail Swing Radius: The distance the rear of the machine moves during rotation.
Conclusion
The Komatsu RC-100 excavator demonstrates a well-rounded design catering to diverse excavation needs with reliable engine power, substantial hydraulic capacity, and manageable size for tight work areas. Its operational weight and digging capabilities position it as a dependable mid-size excavator choice for contractors requiring balance between strength, precision, and efficiency on-site.
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