komatsu PC300LC-7, PC300-7 SPECIFICATIONS

FLYWHEEL HORSEPOWER

180 kW 242 HP @ 1900 rpm

OPERATING WEIGHT

PC300-7: 30800 – 31510 kg

67,900 –69,470 lb

PC300LC-7: 31520 – 32280 kg

69,490 –71,160 lb

Photo may include optional equipment.

PC300-7
PC300LC-7

PC

300

HYDRAULIC EXCAVATOR

3

FLYWHEEL HORSEPOWER
180 kW 242 HP @ 1900 rpm

OPERATING WEIGHT

PC300-7: 30800—31510 kg

67,900—69,470 lb

PC300LC-7: 31520—32280 kg

69,490—71,160 lb

BUCKET CAPACITY

0.52—1.80 m

3

0.68—2.35 yd

3

Photo may include optional equipment.

2

● Larger Arm Crowd Force and Bucket
Digging Force Provide Increased
Production

Arm crowd force is increased 18% and bucket digging
force is increased 7% when the Power Max function is
applied. (Compared with PC300-6).

See page 4

Easy Maintenance

● Replacement interval is extended for
engine oil, engine oil filter and
hydraulic filter

● Remote mounted engine oil filter and
fuel drain valve for easy access

● Water separator is standard equipment

● Easier radiator cleaning

● Fuel tank capacity is increased

● BMRC bushings on work equipment

extend lubricating interval (optional)

See pages 8 and 9

Excellent Reliability and Durability

● High rigidity work equipment

● Sturdy frame structure

● Reliable Komatsu manufactured major components

● Highly reliable electronic devices

See page 5

Harmony with Environment

● Low emission engine
A powerful turbocharged and air to air aftercooled Komatsu
SAA6D114E provides 180 kW 242 HP.

● Economy mode saves fuel consumption

● Low operation noise

● Easily recycled design

See page 5

Large Comfortable Cab

New PC300-7’s cab volume is increased by 14%, offering
an exceptionally roomy operating environment

● Highly pressurized cab with optional air conditioner

● Low noise design

● Low vibration with cab damper mounting

● FOG capable with optional bolt-on top guard

FOG has been renamed to OPG (Operator Protective Guards)
top guard level 2 by ISO 10262

See page 6

● High Production and
Low Fuel Consumption

Production is increased with
larger output during Active
mode while fuel efficiency
is further improved.

● Maximum Drawbar Pull

is increased 17% offering superb
steering and slope climbing
performance.

See page 4

Productivity Features

● Higher Lifting Capacity

PC300-7’s lateral stability is
improved, lifting capacity also
increased.

FLYWHEEL HORSEPOWER

180 kW 242 HP @ 1900 rpm

OPERATING WEIGHT

PC300-7: 30800 – 31510 kg

67,900 – 69,470 lb

PC300LC-7: 31520 – 32280 kg

69,490 – 71,160 lb

BUCKET CAPACITY

0.52 – 1.80 m

3

0.68 – 2.35 yd

3

WALK-AROUND

H YDRAULIC E XCAVATOR

HYDRAULIC EXCAVATOR

PC300-7

PC300-7 0

● High Rigidity Work Equipment

The arm and boom are strengthened to correspond to increasing bucket and arm

digging forces. The arm and boom cross sectional strength are also increased

35% and 9% respectively. The boom and arm have large cross-sectional

dimensions as well as continuous groove welding, improving digging and side

contact strength.

● Sturdy Frame Structure

The revolving frame, center frame

and undercarriage are designed by

using the most advanced three-dimensional

CAD and FEM analysis technology.

● Reliable Components

All of the major machine components,

such as engine, hydraulic pumps,

hydraulic motors and control valves,

etc., are exclusively designed and

manufactured by Komatsu.

● Highly Reliable Electronic Devices

Exclusively designed electronic devices have passed

severe testing.

● Controller ● Sensors

● Connectors ● Heat resistant wiring

● Metal guard rings protect all the hydraulic cylinders and improve reliability.

● Low Noise

Noise is reduced not only from the engine but also

during swing and hydraulic relief. Dynamic noise level

is 106 dB.

● Environment Oriented Mode (Economy Mode)

Economy mode meets the needs of the 21st century.

Economy mode offers the user fuel savings, quiet

operation and less CO

2

emission.

 Fuel consumption is reduced 20% (compared with

Active mode).

 Production is the same as the PC300-6

heavy duty mode.

● Easily Recycled

PC300-7 is designed with consideration of recycling and

uses natural resources effectively.

 Sound suppressing material is made from PET

(polyethylene terephthalate) resin that is easy to

recycle.

 All exterior parts are made from steel.

 Engine and hydraulic system oil and filter replacement

intervals are extended to save earth resources.

 All resin-made parts are indicated by material code

symbol.

5

The increased output and fuel savings of the Komatsu

SAA6D114E engine result in increased production and

improved production per unit of fuel.

Engine

The PC300-7 gets its exceptional power and work capacity

from a Komatsu SAA6D114E engine. Output is 180 kW

242 HP, providing increased hydraulic power and improved

fuel efficiency.

Hydraulics

Unique two-pump system ensures smooth compound

movement of the work equipment. HydrauMind controls

both pumps for efficient engine power use. This system

also reduces hydraulic loss during operation.

Large Lifting Capacity

PC300-7’s lateral stability is improved resulting in increased

lifting capacity.

Larger Maximum Drawbar Pull

PC300-7’s maximum drawbar pull is increased by 17% and

provides superb steering and slope climbing performance.

Maximum drawbar pull: 264 kN 26900 kgf 59,300 lb.

Drawbar pull/operating weight: 0.87

Larger Arm Crowd Force and Digging Force
Provide Increased Production

Arm crowd force is increased 10% by improvement of arm

cylinder linkage; when Power Max function is applied, arm

crowd force is increased by an additional 7%. As a result the

total arm crowd force is increased 18%.

Bucket digging force when Power Max is applied also

increased 7%. The larger digging forces generated the

largest production in the 30 ton 33 U.S. ton class.

*Arm Crowd Force: 171 kN 17400 kgf 38,360 lb.

*Bucket Digging Force: 227 kN 23100 kgf 50,930 lb.

*Measured with Power Max function, 3185 mm 10'5" and ISO rating

High Production and Low
Fuel Consumption

4

17%

increased

Working Mode Application Advantage

Active mode

● Maximum production/power

A

● Fast cycle times

E Economy mode ● Excellent fuel economy

B

Breaker

● Optimum engine rpm,

operation hydraulic flow

Excellent Reliability and Durability

Harmony with Environment

Grease Sealed Track

PC300-7 uses grease sealed tracks for
extended undercarriage life.

Track Link with Strut

PC300-7 uses track links with
strut providing superb durability

Three Working Modes

Working Mode Selection

The PC300-7 excavator is equipped with three working

modes (A, E and B mode). Each mode is designed to match

engine speed, pump speed, and system pressure with the

current application. This provides the flexibility to match

equipment performance to the job at hand.

Smooth Loading Operation

Two return hoses

Two return hoses improve hydraulic

performance. In the arm out

function, a portion of the oil is

returned to the tank smoothly.

Smooth mode

Power mode

Boom floats upward,
reducing lifting of machine
front. This facilitates
gathering blasted rock and
scraping down operations.

Boom pushing force is
increased, ditch digging and
box digging operation on
hard ground are improved.

Economy Mode

Economy mode is environmentally friendly. Fuel consumption

is reduced 20% (compared with PC300-7 Active mode)

and production is equal to the PC300-6 heavy duty mode.

Two Boom Settings

Smooth mode provides easy operation for gathering blasted

rock or scraping down operation. When maximum digging

force is needed, switch to Power mode for more effective

excavating.

PRODUCTIVITY FEATURES

H YDRAULIC E XCAVATOR

HYDRAULIC EXCAVATOR

PC300-7

PC300-7 0

Grease