Komatsu Mini Excavator PC78US-11 | 7.9 ton

Description

Komatsu Mini Excavator PC78US-11 | 7.9 ton

BELIALAT.COM support unit, parts, service, rental, maintenance contract, overhaul, reconditioned Komatsu Mini Excavator PC78US-11 | 7.9 ton

The Komatsu PC78US-11 is an 8-ton class ultra-short tail swing mini/midi excavator engineered for high productivity, exceptional fuel efficiency, and safe operations in confined or congested urban workspaces.

Below are the comprehensive unit specifications for this model:

Engine Specifications

• Model: Komatsu SAA3D95E-1

• Type: Water-cooled, 4-cycle, direct injection, EPA Tier 4 Final / EU Stage V certified

• Aspiration: Turbocharged, aftercooled, cooled EGR

• Engine Displacement: 2.4 liters (149.5 in³)

• Net Power: 68 HP (51 kW) @ 1,850 rpm

• Emission Control: Uses a Komatsu Diesel Oxidation Catalyst (KDOC) with 100% passive regeneration. No AdBlue/DEF or DPF required.

• Fan Drive: Mechanical with a viscous fan clutch to decrease noise and lower fuel consumption.

Weights & Ground Pressure

• Operating Weight Range: 7,910 kg to 8,250 kg (17,439 lbs to 18,188 lbs)

• Weight Breakdown by Shoe Type:

  • Rubber Shoes (450 mm): 7,910 kg (Ground Pressure: 35.0 kPa / 5.10 psi)

  • Triple Grouser Shoes (450 mm): 7,930 kg (Ground Pressure: 35.8 kPa / 5.20 psi)

  • Road Liner Shoes (450 mm): 8,070 kg (Ground Pressure: 35.8 kPa / 5.20 psi)

  • Triple Grouser Shoes (600 mm): 8,250 kg (Ground Pressure: 26.8 kPa / 3.90 psi)

• Note: Operating weight includes a 3,710 mm boom, 2,250 mm arm, 0.20 m³ bucket, blade, operator, and full fluids.

Hydraulic System

• System Type: HydrauMind CLSS (Closed-center Load Sensing System) for precise, simultaneous multi-function control.

• Selectable Working Modes: 6 distinct modes (Power, Economy, Lifting, Breaker, Attachment Power, and Attachment Economy).

• Main Pump Flow (Implement/Travel): Variable displacement axial piston pump delivering up to 44.4 gpm (168 L/min).

• Blade Pump Flow: Fixed displacement gear pump yielding 17.0 gpm (64.3 L/min).

• Auxiliary Hydraulics: Proportional control with dual-stage relief valves (up to 36.5 gpm high-flow).

Performance Specs & Forces

• Bucket Capacity Range: 0.09 m³ to 0.20 m³ (0.12 to 0.26 yd³)

• Maximum Travel Speed: High: 5.0 km/h (3.1 mph) / Low: 3.0 km/h (1.9 mph) with automatic downshifting.

• Maximum Drawbar Pull: 6,820 kgf (15,309 lbf)

• Swing Speed: 10 rpm

Working Ranges (With 2,250 mm / 7’5″ Arm)

• Maximum Digging Height: 7,650 mm

• Maximum Dumping Height: 5,550 mm

• Maximum Digging Depth: 4,660 mm

• Maximum Vertical Wall Digging Depth: 3,980 mm

• Maximum Digging Reach: 6,920 mm

• Maximum Digging Reach at Ground Level: 6,780 mm

• Tail Swing Radius: 1,390 mm (4’7″) — The counterweight protrudes over the tracks by just 230 mm (9 inches) for tight-quarter safety.

Refilling Capacities

• Fuel Tank: 125 Liters (33.0 US gal)

• Hydraulic Tank: 56 Liters (14.8 US gal)

• Cooling System (Radiator): 18 Liters (4.8 US gal)

• Engine Oil: 10.2 Liters (2.7 US gal)

Key Standard Technology & Comfort Features

• 7-inch High-Resolution LCD Monitor: Features real-time Ecology Guidance metrics and built-in attachment management screens.

• Rearview Monitoring System: Comes standard with a dedicated camera feed on the cabin display.

• KOMTRAX: Komatsu’s proprietary telematics system for remote machine monitoring, location tracking, and operational metrics.

• ROPS/OPG Level 1 Cab: Pressurized, isolated cabin design equipped with standard Bluetooth radio, USB ports, and a high-back suspension seat.