KOMATSU PC78US
Specifications & Parameters
| Engine Model | SAA4D95LE-6 |
| Rated Power(kW) | 50.7 |
| Engine Revolutions(rpm) | 1950 |
| Maximum Torque(N·m) | 270 |
| Inject Type | Direct Injection |
| Fuel consumption(L/h) | 4-5.6 |
| Engine Displacement(L) | 3.26 |
| Emisson | Stage V |
| Track width(mm) | 300 |
| Fuel Tank(L) | 125 |
| Hydraulic Tank(L) | 56 |
| Travel Speed(km/h) | 5 |
| Bucket Capacity(m³) | 0.28 |
| Bucket Digging Force(kN) | 53.3 |
| Boom Length(mm) | 3100 |
| Stick Length(mm) | 1700 |
| Maximum Excavation Radius(mm) | 6920 |
| Maximum Digging Height(mm) | 4430 |
| Maximum Digging Depth(mm) | 4660 |
| Specifications(mm) | 6270×2330×2945 |
| Operating Weight(kg&ton) | 8080 |
| Size Class | Small |
| Power Type | Diesel |
| Walking Mode | Crawler |
| Country of Origin | Japan |
| Year of Production | 2020 |
| Condition | Used |
| Inventory Quantity | 3 |
| Working Hours(h) | 2000/5000/7000 |
| Price($) | Get the Latest Price from sales via WhatsApp |
Features
7.8‑ton class short‑tail‑swing compact crawler excavator, built for tight‑space jobs including urban renovation, residential area construction, utility trenching, basement work and indoor factory demolition.
Powered by Komatsu turbo‑charged SAA4D95 diesel engine, solid power output with good fuel‑economy performance. Tier‑3 mechanical configuration without complex urea after‑treatment, low daily operating and service cost for rental‑fleet and municipal projects.
Compact short‑tail‑swing design greatly reduces rear‑swing radius, counterweight barely extends beyond track width during rotation, effectively avoids wall‑collision risks in narrow lanes and confined working zones. Standard dozer blade delivers excellent back‑filling and site‑leveling capability.
Multiple front‑end working configurations available. Standard boom‑arm matched with 0.28 m³ general‑purpose bucket handles earth‑moving and rock‑breaking tasks efficiently. Optional offset boom allows trenching close to walls without machine repositioning; long‑reach arm adapts for deep‑digging assignments.
CLSS closed‑center load‑sensing hydraulic system with dual main pumps, multiple selectable working modes including breaker mode. Stable flow output supports long‑hour operation of small‑medium hydraulic breakers. Smooth compound movements and ultra‑precise fine control fit detailed municipal‑construction work.
Heavy‑duty reinforced boom & stick with fully sealed dust‑proof hinge pins, good anti‑deformation performance under frequent rock‑impact conditions, lowers leakage and failure rate under harsh continuous‑working cycles.
Factory‑pre‑installed bi‑directional auxiliary hydraulic lines support breakers, grapples, rippers and tilt buckets without extra on‑site pipe modification. Multi‑attachment compatibility meets diversified municipal‑construction and rental‑scenario requirements.
ROPS‑certified enclosed cab equipped with air‑conditioning system, comfortable operating environment for long‑shift work. KOMTRAX telematics enables real‑time monitoring of working hours, fuel consumption and machine location, convenient for rental‑fleet remote‑management.
All major daily‑service check‑points are arranged at ground‑level access. Single‑operator completes routine inspection without climbing upper structures, shortens maintenance time and reduces jobsite downtime.
Interested in used KOMATSU PC78US excavator? Click the WhatsApp icon to chat with our sales team for a quicker reply, or leave us a message through the contact form below. If you are looking for a different brand or model, please tell us your purchasing requirements, and we will do our best to help you find the right machine. Send Inquiry
Photos
