Electric mass on the pc 300 excavator 8. Komatsu PC300 excavator technical characteristics and description

The PC300-8 excavator of the Japanese manufacturer Komatsu is one of the most demanded models in the world market.

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Specifications Komatsu PC300-8

Weighing 31,100 kg, this model belongs to the middle class of excavators. The rotating speed of the turntable is 9 rpm. The value of the specific ground pressure is 0.64 kg / sq. see The volume of the fuel tank of the car - 605 liters. The crawler excavator can move around the site at a speed of 5.5 km / h. At the same time, the average fuel consumption of the car is 18-28 l / h.

Performance

The machine provides for the use of two modes of boom control:

• Smooth control mode (simplifies rock collection and surface cleaning).
• Increased power mode (maximum cutting force in the soil).

The advantages of the machine also include:

• Up to 17% more tractive effort over the previous version, allowing the operator better control of the excavator when cornering and climbing over hills.
• Cutting force of soil (+ 7%) and stick (+ 7%) at maximum operating mode.
• Strengthening lateral stability, which increases the carrying capacity of the equipment.

Dimensions (edit)

The Komatsu PC300-8 excavator model is equipped with a 6-cylinder 4-stroke SAA6D114E-3 diesel engine with a capacity of 260 hp. Thanks to precise multi-stage fuel injection, which is controlled by the engine controller, the manufacturer has managed to reduce the level of toxic waste emissions and increase the durability of the unit. The SAA6D114E-3 is also turbocharged and liquid cooled. The engine is Tier 3 compliant.

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Komatsu PC300-8 engine

The Komatsu PC300-8 crawler excavator can perform various types of work, which correspond to one of six operating modes: P (high power mode); E (economy mode); L (lifting mode); B (hydraulic hammer mode); ATT / r (attachments, high power mode); ATT / e (attachments, economy mode).

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Maintenance

The engine oil filter and fuel drain cock are located separately on the same side of the cab. The oil cooler and radiator are located in one row, so it is easy to remove, clean and reinstall them.

Excavator oil changes are made with an environmentally friendly drain valve that prevents soil contamination from leaking. The basic scope of delivery includes a high-performance air filter with a new type of seals. This prevents it from quickly clogging up and resulting in a decrease in machine performance. The excavator has a diesel coarse filter with a water separator.

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By additional order, the manufacturer offers to install BMRC bushings and synthetic shims on all pins of the working equipment, except for the bucket pins. This will increase the lubrication interval up to 500 m / h.

Comfort and safety

The improved cab is well soundproofed. The fully adjustable operator seat can be brought to a fully horizontal position. Together with the control levers, the armrests of the chair can be individually adjusted.

Vibration levels are reduced by installing the excavator cab on viscous damping mounts with an additional spring and increased travel. For operator safety in the event of accidental rollover and from heavy falling objects, the excavator is equipped with a ROPS cab that meets ISO 12117-2 safety requirements.

The Komatsu PC300 excavator is a product of a well-known Japanese manufacturer that has won worldwide recognition in the markets. This model turned out to be quite unpretentious and reliable, and it is also characterized by such qualities as an acceptable cost, economical fuel consumption and a convenient control system. Thanks to all this, the excavator has become widespread and very popular all over the world. It is worth noting that the Komatsu 300 among its class retains a leading position, since the key differences from previous models are its very high cross-country ability and performance in the harshest environmental conditions. In addition, the machine is endowed with excellent performance indicators in operation on loose soil, namely, the excavator is able to move extremely accurately, which allows it not to cause much damage to the road surface.

Description and features

This model is a representative of the middle class of tracked special vehicles. The scope of application is not limited to performing only earthmoving work, since in addition to this, together with additional attachments, the technique is ideal for solving other various tasks. The excavator has an optimal balance of performance and technical characteristics. The Komatsu brand also pays great attention to the build quality of its products, which is exactly what is observed in this model. The assembly of each piece of equipment is carried out by automated conveyor lines, where manual labor is extremely small.

As described in the beginning, the Komatsu PC300 is popular in all areas, however, it is most in demand in the mining and construction industries. This is due not only to the high productivity and reliability of the equipment, but also to the fact that many different modern technologies and solutions are used here, thanks to which the operator or maintenance personnel can monitor the operation of the excavator. This allows you to avoid serious breakdowns that have arisen in unforeseen situations.

The fuel consumption of the excavator is very low, but it would seem that at the same time the power indicators should have decreased, but that was not the case. The manufacturer increased the power of the equipment in active mode of operation, and the tractive effort was increased by 17 percent, as a result of which the equipment is easily able to climb any rise.

The manufacturer also improved the hydraulic system of the excavator, as a result of which it was possible to significantly increase the cutting force on the bucket and handle. When operating at full machine power, the bucket cutting force is increased by 78 percent while the arm force is increased by 18 percent. Not every modern technology is capable of boasting such indicators. In addition, the lifting capacity of the hydraulics has been increased, but the improved lateral stability of the excavator is largely involved in this.

The machine has a lot of modern solutions, which, in addition to performance indicators, also affect the simplification of equipment maintenance:

1. The replacement intervals for lubricants and filter elements, both in the power plant itself and in the hydraulic system, have been significantly increased.
2. A special moisture separator is included in the standard equipment of the equipment.
3. Compared with previous models, this has increased the capacity of the fuel tank, which allows you to do any operations without stopping to refuel.
4. There is a possibility of remote installation of a special valve, which is necessary for draining fuel and lubricating fluids.
5. Cleaning the radiator has been greatly simplified.

Komatsu 300 has a fairly large number of advantages and features, however, the most important of all are:

1. Bucket cutting force and handle thrust have been increased.
2. High power of the power plant combined with low fuel consumption.
3. The lateral stability of the vehicle has been improved.
4. The total tractive effort has been increased by 20 percent.

This excavator stands out from its class mostly for its durability and high reliability, which the manufacturer has achieved thanks to the following:

1. The structure of the excavator frame is of high strength. Emission microscopy analysis and computer aided design were used in the development of the main supporting structures and the undercarriage.
2. High-strength working equipment is used. The boom and stick design has been significantly reinforced to allow the machine to handle extremely heavy loads.
3. We used electronic devices with high reliability. These devices have been specially designed for use in rather harsh conditions.
4. The power plant, hydraulic distributors and hydraulic pumps are proprietary from the Komatsu brand, which ensures their high quality, and, of course, increased reliability.
5. The hydraulic cylinders use metal safety rings to improve the reliability of the excavator.

The manufacturer also took care of the operator's comfort and convenience during work. The cab is sealed and uses a lot of high quality noise-absorbing and vibration-insulating materials. Thanks to this, it was possible to significantly reduce the noise level arising from the operation of the power plant and working equipment. A damper was also provided with an additional spring and a long stroke, which allows you to smooth out strong shocks and shocks during operation, thereby reducing the level of vibration. The side panels of the cab, which use a reinforced structure, also contribute to this. An air conditioner can be optionally installed, providing a comfortable environment for the operator in the hot season. It has a built-in air filter, which, during active operation of equipment, does not allow dust and other small particles to enter the cab.

Simplicity and ease of operation have been achieved through the use of proportional pressure multi-position control levers. It is also worth noting the possibility of moving the control levers and the double sliding mechanism of the chair, thanks to which the operator can set up the workplace as conveniently and ergonomically as possible.

Improvements are also observed in the protective characteristics of the excavator:

1. The cab design has additional protection against any falling objects. But, as an option, a special frame can also be installed, providing increased operator protection.
2. The operator's view of the work area has been increased by 34 percent. This is because the shape of the rear window mount has been drastically changed and the right side pillar has been removed.
3. The power plant was screened with heat-absorbing materials in those places where heating occurs quite quickly and the temperature is very high. This minimizes the risk of fire.
4. The hydraulic pump compartment and the engine compartment are separated by a special partition. This solution was used to avoid splashing oil on the engine in the event of a ruptured hydraulic hose. As in the previous paragraph, this feature also allows you to avoid the occurrence of a fire.
5. For more comfortable and safe entry of the operator into the cab in the winter season or in humid climates, the steps were covered with an anti-slip layer.

If we focus all attention on the technical characteristics of the excavator, then this model significantly surpassed the previous machines. The indisputable advantages of the Komatsu PC300 crawler excavator are high operator safety, build quality and all structural elements, as well as the durability of all components and assemblies.

Appointment

The Komatsu 300 crawler excavator has gained particular popularity in the mining and construction industries. The technique is actively used for quarrying; loosening of solid masses of soil and rocks; loading of lumpy and bulk materials.

In construction organizations, the machine copes with all tasks, namely, it is capable of digging trenches and pits; compaction of loose soils; loosening of hard soil (fourth and other density categories); creation of embankments of soil and other bulk materials; planning of construction sites; cleaning the working area from industrial waste; destruction of any concrete or reinforced concrete objects; opening of the asphalt and concrete layer of various areas; loading; drilling of wells of various depths and diameters and much more.

All the versatility of this excavator is explained by an impressive set of additional attachments.

Modifications

Over the entire period of serial production, the manufacturer provided the consumer with a fairly large number of modified versions, the differences of which are mainly in performance. The following modifications were released: Komatsu PC300-2, Komatsu PC300-3, Komatsu PC300-4, Komatsu PC300-5, Komatsu PC300-6, Komatsu PC300-7, Komatsu PC300-8, Komatsu PC300-8MO.

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Specifications

Bucket specifications:

• The bucket capacity is 1.4 cubic meters.
• The number of teeth on the lower cutting edge is 5.
• The maximum digging height is 10,200 millimeters.
• The maximum digging depth is 7380 mm.
• The maximum bucket unloading height is 6600 millimeters.
• The maximum bucket force is 26,400 kilograms per square centimeter.

Engine characteristics

• The type of the installed engine is in-line, diesel.
• Engine brand - SAA6D114E-3.
• Engine manufacturer - Komatsu.
• The number of cylinders is 6.
• The total working volume is 8.3 liters.
• Rated output power - 194 kilowatts / 260 horsepower (at 1900 rpm).
• The rated crankshaft speed is 1900 rpm.
• Cooling system type - liquid.
• Injection system type - direct fuel injection.
• Starting system type - electric starter.
• Turbocharger type - gas turbine with air cooling.
• The diameter of the cylinders is 114 millimeters.
• The minimum stable idle speed is at least 650 rpm.
• The minimum stable idle speed is no more than 2000 rpm.
• The lowest fuel consumption per one working hour - 18 liters.
• The highest fuel consumption per working hour is 28 liters.

dimensions

• The constructional length of the excavator is 11,300 millimeters.
• The width of the tracked platform is 3200 millimeters.
• The total height in the cockpit is 3100 millimeters.
• The smallest turning radius of the platform is 3500 millimeters.
• Boom length - 6470 mm.
• The length of the handle is 2200 mm.
• The smallest ground clearance of a tracked platform is 500 millimeters.

Price

The cost of the Komatsu 300 crawler excavator in a completely new state starts at 7 million Russian rubles. Used cars produced in the period from 2008 to 2009 have an average cost of 4.8 million Russian rubles. Later models (from 2011 to 2012) will cost from 6.5 million rubles to 6.8 million Russian rubles.

Description

Excavator KOMATSU PC300-7

Performance characteristics of the KOMATSU PC300-7 excavator

1. High performance and low fuel consumption. Performance is increased by increasing power in active mode while maintaining low fuel consumption.
2. Maximum tractive effort is increased by 17% for superior cornering control and gradeability.
3. Increased stick force and bucket cutting force increase productivity. When the maximum power function is enabled, the stick force is increased by 18% and the bucket cutting force is increased by 78% (compared to the PC300-6 excavator).
4. Increase in carrying capacity. On PC300-7 excavators, lateral stability has been improved, which provides an increase in lifting capacity.

Ease of maintenance of the excavator KOMATSU PC300-7

1. The intervals between changes of the engine oil, engine oil filter and filter for cleaning the working fluid of the hydraulic system have been increased.
2. Remote installation of the oil filter and fuel drain cock.
3. A moisture separator is included as standard equipment.
4. Facilitated cleaning of the radiator.
5. The capacity of the fuel tank has been increased.
6. Steel / copper bushings of hard sintered material in bucket and arm pivots.

Superior reliability and durability of the KOMATSU PC300-7 excavator

1. High-strength work equipment. The stick and boom of the KOMATSU PC300-7 excavator are reinforced to accommodate significant bucket and stick forces. Stick and boom cross-sectional strengths are also increased by 35% and 9%, respectively. The boom and stick have large cross-sections and are manufactured using a continuous groove weld method to increase digging forces and improve side contact strength.
2. Robust frame construction. State-of-the-art computer-aided design and emission microscopy analysis has been used to design the swing frame, center frame and undercarriage.
3. Reliability of the main components and assemblies. All major components and assemblies, including the engine, hydraulic pumps, hydraulic motors, hydraulic valves, are designed and manufactured exclusively by Komatsu.
4. High reliability of electronic devices. The specially designed electronic devices have been rigorously tested.
... Controller
... Sensors
... Electrical connectors
... Heat resistant wiring
5. Metal safety rings protect all hydraulic cylinders, increasing the reliability of the KOMATSU PC300-7 excavator.

Spacious and comfortable cab of the KOMATSU PC300-7 excavator

1. Sealed cabin with air conditioning optionally installed. With an optional air conditioner installed and an air filter and increased internal air pressure (6.0 mm H2O and 0.2 in. H2O), dust from the outside does not enter the interior of the cab.
2. Low noise design... The noise level is significantly reduced not only when the engine is running, but also when turning the platform and unloading the hydraulic system.
3. Low vibration thanks to the installation of a cab damper. The KOMATSU PC300-7 uses a new and improved cab damper system, which uses a long stroke and an extra spring. A new cab damper, combined with reinforced left and right side panels, helps reduce vibration at the operator's seat.
Proportional pressure multi-position control levers create a comfortable working environment and precise control of the KOMATSU PC300-7 excavator. Thanks to the double sliding mechanism, the seat and control levers can be moved together or separately. The operator can position the levers for ease of control and comfort.

Characteristics of protective devices of the excavator KOMATSU PC300-7

1. Cabin. Operator Protection Guard (Falling Object Protective Structure) with optional bolt-on top guard.
2. Wide view. To improve visibility, the right window pillar has been removed and the shape of the rear window pillar has been changed. The number of view sites increased by 34%.
3. Partition between engine compartment and pump compartment prevents oil from splashing onto the engine in the event of a ruptured hydraulic hose.
4. Heat shield and fan shroud installed around the heated parts of the motor and fan drive.
5. Anti-slip steps and large handrails... This provides solid support when performing maintenance work on the KOMATSU PC300-7 excavator.

KOMATSU PC360-7

On the basis of the PC300-7 model, the KOMATSU PC360-7 excavator was created, which differs from the base model in the following:

1. Reinforced handle.
2. Rock bucket with a capacity of 1.6 m 3.
3. Reinforced boom.
4. Counterweight with a weight increased by 900 kg.
5. Reinforced track shoe.
6. Reinforced turntable.

Standard Equipment for KOMATSU PC300-7 and KOMATSU PC360-7 Excavators

Alternator, 35 A, 24 V
- Switch for automatic reduction of engine speed
- System for automatic removal of air from the fuel line
- Automatic engine preheating system
- Rechargeable batteries - 2 x12 V, 126 A.h
- Boom retention valve
- Cab adapted to fit FOG structure with optional removable top shield
- Corrosion protection device
- Counterweight
- Dry air cleaner with two elements
- Electric horn
- Engine SSA6D114E from Komatsu
- Engine overheating prevention system
- Fan shroud
- Hydraulic track tensioners (one on each side)
- Monitor panel (7-segment)
- Power maximization system
- Hydraulic proportional control with pressure compensation
- Dust net for radiator and oil cooler
- Right rearview mirror
- Starter - 1 x 24 V, 7.5 kW
- Exhaust fan
- Protective fence of the central section of the belt-driving mechanism
- Support rollers
- Track shoes
- Two modes of boom operation
- Work lights - 2 (on the boom and on the right side)
- Operating mode selection system

Optional equipment for KOMATSU PC300-7 and KOMATSU PC360-7 excavators

Air conditioner with window heating system
- Alternator, 60 A, 24 V
- Sticks assembled in lengths of 2220, 1550, 3185, 4020 mm
- Rechargeable batteries of increased capacity 2 x 12 V, 140 Ah
- Removable top shield
- Boom length 6470 mm
- Cab accessories (rain canopy, sun canopy)
- Front cab protection
- Heater with glass heating system
- High-strength sintered steel / copper alloy bushings for attachment, extending relubrication intervals
- Multifunctional color monitor
- Rearview mirror (left)
- Inertial seat belt
- Seat on elastic suspension
- Service valve
- Triple grouser track shoes
- Bottom protection of the track frame
- Guards for road rollers (for the entire length of the track)
- Movement warning beeper
- Work lights

Made in Japan, it has gained worldwide fame. The positive qualities of Komatsu PC300 include reliability, efficiency, comfort and simplicity in care and maintenance. In addition, for such a machine there are no restrictions in the conditions of the site or climate, thanks to the caterpillar track, the excavator overcomes difficult-to-pass areas without problems without getting stuck in them. Loose soil is also not an obstacle, and after the vehicle passes along the roadway, it remains unharmed.

The versatility of the excavator allows it to be used not only in various conditions of the site, but also for a wide range of tasks. The assembly of Komatsu PC300 is of high quality and operational and technical properties. This is due to the minimum human labor costs and a high degree of automation in the production of machines, coupled with the use of modern materials.

Navigation

The construction and mining industries often use the komatsu pc300 in their work. The increase in power in operating mode has led to an increase in productivity with low fuel consumption. The traction effort, increased during the development process, enables the machine to be easily steered when cornering and to navigate steep slopes without hindrance.

The force of the shovel's cut and the force of the handle also did not go unnoticed, they increase when the excavator is operating at maximum power.

Strengthening the lateral stability of the machine made it possible to increase its carrying capacity. In addition, the technical characteristics of the equipment are designed in such a way that maintenance is extremely simple:

• oil and filter changes are performed much less frequently than on other excavator models;
• the moisture separator is factory installed and is part of the standard assembly;
• the fuel tank has a larger volume than the tank of other models;
• fuel drain cock and oil filter can be installed remotely;
• cleaning the radiator is pretty straightforward.

The advantages of this technique include:

• increasing the efforts of the handle and bucket;
• low fuel consumption with increased power;
• ease of care and maintenance;
• increased lateral stability;
• increased tractive effort.

Specifications

Ultimate pressure 1 cm? soil - 0.64 kg. Platform rotation speed - 9 rpm. The Komatsu PC300 weighs 30.8 tons.

Equipment performance

• maximum bucket force - 26400 kgf;
• maximum digging depth - 7.38 m;
• maximum unloading height - 6.6 m;
• maximum digging height - 10.2 m;
• digging radius - 10.2 m;
• bucket volume - 1.4 m3.

Dimensions "Komatsu RS 300"

The machine is 11.3 m long, 3.2 m wide, 3.1 m high, has a maximum swing radius of 3.5 m, a 2.2 m arm and 6.47 m boom.Maximum travel speed is 5.5 km / h, and the ground clearance is 0.5 m.

Fuel consumption

On average, it is 18-28 l / h, depending on the operating mode. The fuel tank is designed for 605 liters.

Modifications

The following excavator modifications can be distinguished: Komatsu PC300-2, Komatsu PC300-3, Komatsu PC300-4, Komatsu PC300-5, Komatsu PC300-6, Komatsu PC300-7, Komatsu PC300-8, Komatsu PC300-8MO.

Engine

Direct injection, turbocharging (with lowering the air temperature for it), lowering the temperature of the liquid - the main parameters of the four-stroke six-cylinder power plant SAA6D114E, running on diesel fuel. It is installed as standard with Komatsu PC300.

Engine characteristics:

The Komatsu PC300 is equipped with an 8.3 liter engine. With a rotational speed of 1900 rpm, a small amount of fuel is consumed. The power of such a unit is 194 kW, which, when converted to horsepower, is 260. As for the cylinder, its diameter is 114 mm. In addition, there is the ability to adjust the speed in any mode of operation, and the exhaust meets the Tier II standards.

Device

This excavator model is durable and reliable, which is guaranteed by:

• installation of safety rings made of metal. They are designed to protect hydraulic cylinders while increasing the level of machine reliability;
• the strength of all elements and installations that pass all checks at the manufacturing plant;
• installation of electronics. It is unaffected by harsh working conditions. passed all the necessary endurance tests;
• installation of equipment and devices of increased accuracy. With a reinforced bucket and stick, and a developed cross-section, the machine is able to increase productivity when needed. In addition, welding is carried out continuously with grooving. This gives additional strength to the entire structure;
• reinforced frame construction. Strength is due to the automation of production and due to the consideration at the design stage of emission microscopy.

Komatsu Ltd. started to produce special equipment as an independent enterprise in 1968. The main production facilities of the company were concentrated in Japan. Today it is one of the world's largest manufacturers of special equipment. Since the year, Komatsu equipment has been produced in Russia. The Komatsu PC 300 and PC 400 excavators left the conveyors of the Yaroslavl plant of the company.

Komatsu RS 300 excavator: technical characteristics

The Komatsu PC 300 excavator is equipped with an original 6-cylinder unit from the manufacturer SAA6D114E-3. The engine capacity is 8.3 liters, the power is 260 hp / 194 kW. The technique has a top speed of 5.5 km / h.

Performance characteristics

The bucket volume is 1.4 m3.

Digging height (max.) - 9.6 m.

Unloading height (max.) - 6.6 m.

Digging radius (max.) - 10.2 m.

The maximum bucket force is 26 400 kgf.

The maximum effort on the handle is 24,000 kgf.

dimensions

Length - 11.3 m; width - 3.2 m; height - 3.1 m.

Stick length - 2.2 m.

Ground clearance: minimum - 0.5 m; counterweight - 1.2 m.

The turning radius of the platform is 3.5 m.

Advantages of the Komatsu RS 300 excavator

1. More power with lower fuel consumption.
2. Tractive effort has increased by almost 20% compared to the previous model.
3. Productivity is improved by increasing bucket and stick thrust.
4. Improved lateral stability, which increases the carrying capacity of the equipment.
5. Extended replacement period for special fluids and fuels and lubricants.
6. Lightweight maintenance system.

The working equipment of the PC 300 is made of high-strength steels, and the structure itself is significantly reinforced for greater reliability. The manufacturer guarantees the reliability of the excavator frame and power units. At the same time, Komatsu has not forgotten about operator comfort. The cab is designed for maximum convenience in operating equipment:

• equipped with air conditioning;
• provides a wide all-round view;
• has vibration dampers and sound insulation.

Komatsu RS 400 excavator: technical characteristics

Komatsu PC 400 is powered by a 6-cylinder original SAA6D125E-3 engine. It has a working volume of 11 liters and a power of 347 hp. The maximum excavator speed is 5.5 km / h.

Performance characteristics

The bucket volume is 1.9 m3.

Digging height (max.) - 10.3 m.

Unloading height (max.) - 7 m.

Digging radius (max.) - 11 m.

The maximum bucket force is 28,200 kgf.

The maximum effort on the handle is 25,900 kgf.

dimensions

Length - 11.9 m; width - 3.3 m; height - 3.9 m.

Stick length - 2.4 m.

Ground clearance: minimum - 0.6 m; counterweight - 1.3 m.

The swing radius of the platform is 3.6 m.

Advantages of the Komatsu RS 400 excavator

1. High performance with low fuel consumption.
2. Powerful and economical engine.
3. High digging force.
4. Possibility to use two modes of boom operation.
5. Increased vehicle stability on slopes and various types of soil.
6. The increased lateral stability guarantees a high carrying capacity of the PC 400.

Like the previous model, the RS 400 boasts an extended period for changing fluids and fuels and lubricants, a spacious and comfortable operator's cabin, the presence of protective mechanisms and high durability of the working equipment.