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Komatsu D21A-8 vs Caterpillar D5N

Komatsu D21A-8 vs Caterpillar D5N

Komatsu D21A-8 vs Caterpillar D5N: The design of  Komatsu D21A-8 crawler dozer is primarily for slope work and moreover for fine grading applications. Considering the features of the Hydroshift drive transmission which is very powerful. There is a fuel-efficient Komatsu 4D94LE-2 engine for advanced grading control, ease of operation, and increased power and maneuverability. While Caterpillar D5N is a small track-type bulldozer manufactured by Caterpillar Inc. The production of the original D5 series in 1939, the current D5 series of which is produced is the D5K.

Let us find below the difference between the two to get a clear picture.

Komatsu D21A-8

The D21A-8 functions with 40 hp (30 kW) at 2,450 r/pm and features an operating weight of 8,688 lb. (3,941 kg) and a blade capacity of .75 cu. yd. (.6 cum) (SAE). The machine is a lightweight, compact design. It moreover allows contractors to use the same trailer useful for skid steers while still remaining below weight limits that would require drivers to obtain a CDL.

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Further, for the increase in balance and maneuverability on sloppy, muddy, and other adverse ground conditions. The D21A-8 is equipped with a long track and well-positioned at the center of gravity. Moreover, the add on options of either a rubber or steel track chain further allow the unit to travel easily over soft ground and mud.

Powerful, Smooth Transmission

Further, the delivery of power of the D21A-8 is via a direct drive powertrain utilizing Komatsu’s HYDROSHIFT transmission. It is moreover for smooth gearshifts, powerful traction, and low fuel consumption. The HYDROSHIFT transmission is able to prolifically convert engine power to traction with lesser power loss. Thus, making more efficient operation when it comes to steady-load applications.

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Joystick Controls for Simplified Operation

In addition, these upgraded features include a single, left side pressure proportional control (PPC) joystick control for direction and gear changes. Further, the left-hand joystick controls all directional and speed changes. When steering, the PPC valve which is into the steering circuit facilitates smooth, shockless steering, allowing light-touch steering/braking action. Moreover, the single, mechanical blade control lever which is at the operator’s right hand operates the blade lift, tilt, dig, and angle functions.

Besides this, adding to the ease of operation and precise control is the transmission inching pedal. The combination with the joystick controls further provides more specific grading accuracy. There is moreover a decelerator pedal which is though optional provides the operator infinite speed control. The HYDROSHIFT transmission further allows for easy travel speed changes with the simple twist of a control lever. Moreover, allowing the operator to tailor speed to the application.

Minimal Environmental Intrusion with Rubber Track Option

The optional rubber track provides contractors a machine with low traveling noise and less vibration to the ground. Moreover, the ability to move the machine over asphalt and concrete without taking extra steps to protect the surface. Further, the smooth, quiet design makes this machine able to work in urban areas. You can ensure Track reliability via double-layer bias steel cords and main steel cords, with a unique hard rubber that is overlaid on the steel base in a lug-type pattern.

Improved Maintenance

Keeping in mind that maintenance is critical for successful equipment upkeep and moreover, keeping operating costs down, Komatsu offers several features with the D21A-8 for ease in maintenance. A conveniently located instrument panel further makes it easy to inspect the machine’s vital information and the fuel meter. Further, the dust indicator lamp is located directly in front of the operator for easy monitoring. Moreover, Other items aiding in maintenance and machine durability include:

  1. Pin-on filters throughout the machine help in easy replacement.
  2. Lifetime lubricated idlers and track rollers eliminate periodical greasing and therefore minimize pin and bushing wear.
  3. Optional lubricated track links reduce power loss that further results from pin and bushing friction while improving operator comfort.
  4. Further, the rollover protection structure (ROPS) canopy is one of the standard safety measures.

Caterpillar D5N

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Equipment sets the standard for our industry. Caterpillar D5N equipment sets certain standards for our industry. The Caterpillar D5 product line of more than 300 machines. This further reflects an increase in focus on customer success. The industry shall further remain the leader by continuing to help the customers meet their needs with durable and reliable heavy equipment. Moreover, the CaterpillarD5N has the best distribution and product support system in any capital goods industry.

Engine Specs

  1. Gross Power: 74.5 kW (100 hp)
  2. Net Power: 71.6 kW (96 hp)
  3. Bore: 105 mm
  4. Besides this, weight in kg 15,000 approx.

Power Systems

Wherever you are and whatever is your business, Caterpillar D5N is there to meet your most critical needs. Moreover, matching the world’s most stringent standards. Further, for more than 85 years they have been powering the industries and businesses that communities rely on. And with 5 to 16,000 kW, it is moreover well equipped to power today and built to power tomorrow.

Safety Services

Caterpillar Safety Services is able to help you engage your entire organization in a culture of zero-incident performance. Moreover, guide you along your safety journey by providing industry best practices. Further, continuous improvement processes and the latest technologies to see, mitigate, and therefore manage risks.

New Equipment

Right from the factory roll, they are reliable and durable at all times. Moreover, Caterpillar has the best distribution and product support system in any capital goods industry.

Conclusion:

Both are powerful in their own space. The two of them have different features so it is not possible to decide which one is better. The design of  Komatsu D21A-8 crawler dozer is primarily for slope work and moreover for fine grading applications. Considering the features of the HYDROSHIFT drive transmission which is very powerful. There is a fuel-efficient Komatsu 4D94LE-2 engine for advanced grading control, ease of operation and increased power and maneuverability. While Caterpillar D5N is a small track-type bulldozer manufactured by Caterpillar Inc. The production of the original D5 series in 1939, the current D5 series of which is produced is the D5K.

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