Features of Komatsu Excavator (Backhoe)

Dash-7 Series

1. High production and low fuel consumption

-Working mode selection
Dash-7 excavators are equipped with three working modes (A, E and B mode). Production is increased with larger output during Active mode while efficiency is further improved.

-Larger digging power provides increased production

Bucket digging force and bucket digging speed are increased, so resulting total bucket digging force increased. (PC200-7, PC220-7)

-Larger arm crowd force and digging force provide increased production (PC300-7, PC600-7)

-Large lifting capacity
Lateral stability is improved resulting in increased lifting capacity.

-Larger maximum drawbar pull
Maximum drawbar pull is increased, provides superb steering and slope climbing performance.

-Power max function
This function temporarily increases digging force by 7% for added power in tough situations.

-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. (PC300-7, PC800-7)

2. Harmony with environment

-Low emission engine
Komatsu Dash-7 Series engine meets EPA, EU and Japan Tier ll emissions regulations.

-Environment oriented mode (Economy mode)
Economy mode offers the user fuel savings, quiet operation and less CO2 emission.

3. Large comfortable cab

-Large-sized cab
New cab volume is increased by 14%.

-Pressurized cab
With optional air conditioner, air filter and higher internal air pressure prevent external dust from entering the cab.

-Low noise
Noise is reduced not only from the engine but also during swing and hydraulic relief.

-Low vibration with cab damper mounting
The new cab damper mounting combined with strengthened left and right side decks aids
vibration reduction at operator seat.

-Automatic air conditioner (Optional)
A 6,900 kcal (SAE) air conditioner is utilized.

4. Easy maintenance

-Hydraulic oil and filter/engine oil and filter replacement interval extended
Oil and filter change interval

-Easy radiator cleaning
Clearance between radiator and oil cooler is increased to facilitate radiator core cleaning with an air nozzle.

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

-Water separator is standard equipment

-Fuel tank capacity is increased

-SCSH bushings on work equipment extend lubricating interval from 100 hours to 500 hours (optional)

5. Multi-function color monitor (optional)

-Hydraulic pump oil flow adjustment system
When installing attachments (breaker, crusher, etc.) and B, A, or E mode is selected, it is
possible to adjust engine and hydraulic pump discharge flow to match attachment characteristics.

-Lifting mode
When the Lifting mode is selected, lifting capacity is increased by 7% by raising hydraulic pressure.

-EMMS (Equipment Management Monitoring System)

-Monitor function
Controller monitors engine oil level, coolant level, engine oil pressure, coolant temperature, battery charge and air cleaner clogging, etc. If controller finds any abnormality, it is displayed on the LCD.

-Maintenance function
Monitor informs replacement time of oil and filters on LCD when the replacement interval is
reached.

-Trouble data memory function
Monitor stores abnormalities for effective troubleshooting.

VHMS (Vehicle Health Monitoring System) (Option for PC1250-7, PC1800-6)

VHMS controller monitors the health conditions of major components, enables remote analysis of the machine and its operation. This process is supported by the Komatsu distributors, factory and design team. This contributes to reduced repair costs and to maintaining maximum
availability.

1. Merits of Using VHMS

Diagnosis

-Machine health information that used to take approximately 1 hour to be measured can now be
downloaded by personal computer in approximately 10 minutes, shortening the vehicle's down time.

-Furthermore, if the satellite communications function is equipped, the machine information can be gathered without stopping the vehicle at all. (Not available in some regions.)

Recommendation

-An appropriate recommendation can be made by viewing these data over the Internet.

-Proper driving methods

-Formulation of maintenance plans in advance that suit the customer's production schedule.

Customer's Benefit

-Sudden break down can be prevented through utilization of data trend (change over time).

-Ascertaining the facts and searching for the cause of the breakdown are simplified, thus enabling problems to be resolved quickly.

-Down time can be shortened by the systematic use of Reman components.

-Machine life can be extended significantly by proper operation and proper maintenance.

AVANCE Series

1. High productivity and versatility

-HydrauMind (PC120-PC130) With HydrauMind system;
Work equipment speed is determined only by lever stroke -> Good fine control operation.
Compound operation not affected by load -> Good compound operation.

1) Working through soft rock or pulling up boulders is easy.
2) Switching attachments is easy.
3) Fully loading bucket is easy.
4) Fine control lifting is easy.
5) Digging along ditch walls is easy.
6) Chassis shaking is reduced even during simultaneous operations.

-Power maximizing function
Temporarily increases implement force for added power in tough situations. Effective in operations such as digging up boulders and/or lifting operation.

-Swift slow-down button
The speed continues to go down while the switch is being pressed. Example of effective jobs-

1) Shaping load after completion of dump truck loading.
2) Difficult work with power, such as when digging up rocks.
3) Reverse scraping work.

-Active Power Max. (PC120-PC450)
The exclusive Active Power Max. mode increases the engine speed and the hydraulic relief
pressure, making possible more powerful, speedy operation than with the ordinary Active mode.

-Active mode (PC120-PC450)
Operating speed is boosted for light loads in all kinds of operations to greatly shorten cycle time.

-Breaker mode
Engine speed, oil flow and pressure are preset at a level that provides proper fuel consumption at all times.

-Two-mode setting for boom
Relief pressure setting at the boom cylinder head can be switched "SMOOTH" or to high "POWER" mode according to type of operations. (PC1800)

-Shockless boom control (PC1800)

When boom operation is stopped, less shock is transmitted to the machines.

-Heavy lift mode (PC1800)
Lifting capacity is increased by approximately 10%.

-Swing/boom priority selection mode (PC800)
Automatically determines optimum speed for boom and swing in response to swing angle in
backhoe loading operations.

2. Comfortable operator’s environment

-Comfortable operating space and superb visibility

1) Large cab
2) Large ceiling hatch for wide upper view
3) Cab-frame mounted wiper for wide front visibility

-Pleasant operation with good atmosphere inside cab

1) Adjustable wrist control lever
2) Steplessly-adjustable monitor (PC120-PC400)

-Multi-layer viscous damping mount (PC200-PC400)
Operator fatigue has been reduced.

3. Easy servicing and safety

-Hinged oil cooler (PC120)
This facilitates radiator cleaning.

-Complete pump/engine room partition

-Turbocharger exhaust manifold cover (PC120 and over)

-Hybrid hydraulic oil filter (PC120-PC400)
Hydraulic oil filter element life is lengthened.

Rubber Crawler Excavators

1. Komatsu rubber crawler excavators for low noise, low vibration and less damage

Compared to steel, rubber crawlers emit much less traveling noise and transmit far less vibration to the ground.
Rubber crawlers enable you to move your equipment smoothly and easily over short distances, without a carrier. There's no need to lay any extra sheet over the road because rubber causes less damage to roads and other paved areas. In other words, rubber crawlers and pad shoes are safer for the environment, more comfortable for the operator and less disturbing to the neighborhood.
Smooth, quiet, damage-free machines are just what you need for reconstruction and redevelopment projects in busy streets and other urban areas.

-Rubber crawlers for mini hydraulic excavator

When mini hydraulic excavators ride on durable rubber crawlers, they can accomplish an even
wider variety of jobs smoothly, quietly and over all types of pavement, without damage to the urban environment.
In addition, large metallic base embedded in rubber assures extended crawler life.
The rubber crawler is securely held in position by two flanges of track rollers, minimizing the chance of crawler removal from the undercarriage and enabling stable traveling.

-Rubber pad shoes for medium-class hydraulic excavators

Rubber pad shoes provide the same strength as conventional tracks but with a smooth, quiet and gentle grip.
A blend of natural and synthetic rubbers assures maximum strength. This durable, hard material is baked onto the metallic triple-grouser shoe. As a result, the total shoe assembly is as strong as conventional shoes.
To assure lower maintenance costs, each rubber pad shoe is bolted on the track link in the same manner as standard steel shoes. So, shoe plates are completely interchangeable and only
damaged shoes need to be replaced. What's more, rubber pad shoes offer extended service
life because even after the rubber pad wears out, these shoes are still usable as the flat or triple-grouser shoes.

HD-Series

1. Komatsu HD-series features heavy duty undercarriage for tough logging operations

The HD-series-6 enjoys greater mobility and dependability in wooded areas, scrap yards, and
other locations where rough terrain demands high performance.

-Undercarriage designed for greater durability
One Class Larger Undercarriage (PC300HD)

All the components of the PC300HD-6 undercarriage are made for the one-class larger PC400-6.

-10 Track Rollers (Per Side) (PC400HD)

The number of track rollers has been increased from 8 to 10, and the track roller mounting pitch has been reduced compared to the PC400LC-6.

-Full Length Track Roller Guard

The full-length track roller guard covers the entire length of the track frame. This prevents stones from getting caught in the track rollers and causing derailment.

-Recoil Spring Installed at a Higher Load (PC400HD)

The pre-stressed load on the recoil springs is 16% greater than in the PC400LC-6, thus
increasing dependability on rough ground and steep slopes, where tracks often slip, derail, and suffer extensive damage.

-Long track and wide track gauge offer excellent stability

The HD-series track frame accommodates a long track and a wide track gauge so as to offer
excellent stability.
The PC300HD/400HD has more lifting capacity than the PC300LC/400LC.

-Variable track gauge facilitates transport

The HD-series has a variable track gauge, so the overall width in transit is narrower.
This means that the excavator can pass through small tunnels and over narrow bridges in
mountain areas. (PC400HD)

US-Series (Short tail. US stands for ultra tail and standard boom)

1. High productivity and safety

-Short implement swing radius
US series can work in areas where conventional profile excavators would pose a safety risk.

-Short tail swing radius
US series reduces the operator’s need to check behind him for movement.

-Wide working ranges
Maximum digging height of the US series are larger than conventional machine.

Komatsu Mining Shovel Features

High production with low running costs
High digging forces provide fast cycle times and low cost per tonnage

Environmental harmony

-Komatsu engines which meet EPA, EU and Japan emission regulations
-Extended oil change intervals and filter replacement intervals to reduce environmental impacts
-Long term experience in use of biological hydraulic oils and lubricants, as an option available

Large, comfortable and safe mining operator’s cab

-Integrated FOPS structure according ISO 3449
-Internal floor area 4.2 m2 (6510 sq.in)
-Large windows for good all around visibility
-Side sliding windows
-Pressurized to keep dust out
-Noise level at about 70 dB (A) according DIN ISO 6994
-High intensive XENON working lights serviced from inside of the cab
-Cab heating and air conditioner of 10 kW
-Comfortable multi-functional operator seat with internal heating
-Second swing out fold away seat for trainer
-Wash-hand basin
-Refrigerator

ECS or VHMS monitoring system for greater machine efficiency and low maintenance time

-Comprehensive overview of shovel functions with operator friendly display
-Optional data transfer possibility via Modular Mining System controller
-All important machine running datas are monitored and electronically stored, with down load facility
-Acoustic and visually alarms warn of machine malfunctions

Komatsu Engine

-Latest engine technology compliant with emission regulations
-Engine life time self cleaning stainless steel engine oil filter (ELIMINATOR) to avoid filter change; only filter cleaning at every 1000 hour is required
-Engine oil management system (Reserve and Centinel system) to extend oil change intervals up to 4000 hours
-Fuel tank capacity for continuous work up to 24 hours

Electric drive as option

-Electric motor 6600/7200 V and 50 or 60 Hz available
-Squirrel cage motor with soft start
-Optimized electrical design for all international standards
-Compact design with low vibration and noise
-Cable drum with automatic tensioning, as option

Komatsu hydraulic system HYDRO-PILOT

-Multi-circuit hydraulic system with electronic load governor, pump flow summation capability, and oil flow priority based on demand, for fast working cycles and high productivity

-All main hydraulic circuits are run at one pressure level only, simplifing pressure adjustment and service

-Each circuit with connection facility for pressure check gauges

-Changing from front shovel to backhoe is simple
-Un-pressurized hydraulic tank with large pump suction lines and low pump speed prevents risk of cavitation

-Each hydraulic circuit protected with high pressure filters

-Full flow 10 ym return line filters for system safety and for supplementary circuits 3 ym by-pass filter to improve oil quality for long component lifetime

-Swing out hydraulic cooler for simple cleaning to keep the cooling efficiency

Heavy-duty shovel undercarriage design

-Komatsu Mining Germany track system with oscillating shoes for optimum response to rugged mining ground conditions
-Lifetime lubricated rollers
-Automatic track tensioning system
-Track shoes in high quality casting steel and engineered by finite element method
-Precision hard facing of contact surfaces for long term performance
-Different width of shoes available for best performance in softer mining ground conditions

Attachments

-Backhoe attachment available for all mining applications
-Closed box design combining steel plates and castings, engineered by finite element method for full lifetime
-Wide selection of buckets and customized options
-Bucket wear package ranges to meet all mining conditions
-Attachment pin sealing arrangement for reduced bearing wear-parts costs

Service

-Hydraulically assisted ladder for ease and convenience access
-Upper structure walkway allows safe access to all service points
-Walk in machinery house provides all weather protection for service attention
-Automatic central lubrication system for attachment and main swing bearing
-Swing down service arm for fast, ground level refilling and evacuation and the minimizing of leakages during service
-Complete machine delivered in pre-tested modules for fast erection on job side