Komatsu D21 Bottom Roller

komatsu d21 bottom roller

Production Description

Bulldozer undercarriage parts include track chains, track shoes, rollers, sprockets, and idlers. These parts work together to support the weight of the machine and distribute its weight over a larger surface area.

Differential type of quenching or through type of quenching heattreatment can ensure certain heat treatment hardness depth and so give good anti-cracking effects.

 

 

Lubrication oil of our bulldozer top rollers is selected carefully. It can lubricate shaft and bushing well to lower the wearing utmostly. And it can cool the roller perfectly. Those maximize the inner structure life.

KOMATSU D21 BULLDOZER: A Versatile and Reliable Choice

KOMATSU D21 bulldozer is a powerful and reliable machine that has been trusted by construction professionals for decades. This versatile piece of equipment can handle a variety of tasks, from clearing land to building roads and even mining. In this article, we'll take a closer look at what makes the KOMATSU D21 bulldozer such a great investment for those in the construction industry.

One of the most striking features of the KOMATSU D21 bulldozer is its compact size. Measuring just over 5 feet wide and 8 feet long, this machine is easy to maneuver even in tight spaces. This makes it an excellent choice for construction projects that require working in confined areas such as urban construction sites, building demolition, and land clearing. Despite its small size, the KOMATSU D21 bulldozer is a powerful machine that can push or pull heavy loads with ease.

Another key feature of the KOMATSU D21 bulldozer is its reliability and durability. KOMATSU has a reputation for designing and manufacturing high-quality construction equipment that can withstand rough conditions and heavy use. The D21 bulldozer is no exception, as it is built with a sturdy and robust frame that can handle tough terrain and frequent use. The machine's drivetrain is also designed for long life and optimal performance, ensuring that it can handle demanding tasks without breakdowns or malfunctions.

The KOMATSU D21 bulldozer is also known for its ease of use and comfortable operation. The cab of the machine is designed with the operator in mind, with a spacious and ergonomic layout that reduces fatigue and improves productivity. The controls are intuitive and easy to use, allowing the operator to work efficiently and safely without distraction. Additionally, the machine is equipped with a variety of safety features such as backup cameras, proximity sensors, and warning alarms, further enhancing the operator's safety and comfort.

In terms of performance, the KOMATSU D21 bulldozer features a powerful engine that delivers impressive horsepower and torque. This allows the machine to handle heavy loads and tough terrain without breaking a sweat. The machine's blade is also designed to provide optimal performance, with a curved profile that maximizes pushing power and minimizes resistance. This results in faster and more efficient clearing and grading of land, as well as faster digging and trenching in mining and quarrying operations.

Finally, the KOMATSU D21 bulldozer is backed by KOMATSU's reputation for excellent parts availability, service, and support. With a vast network of dealers and service centers around the world, KOMATSU ensures that customers can get access to replacement parts, maintenance, and repair services quickly and easily. This means that you can rely on your KOMATSU D21 bulldozer to stay up and running, maximizing your productivity and return on investment.

In conclusion, the KOMATSU D21 bulldozer is an excellent choice for anyone in the construction industry who needs a versatile, reliable, and powerful machine. Its compact size, excellent performance, ease of use, and unmatched support make it a wise investment that will pay dividends for years to come. Whether you're clearing land, grading roads, or mining for precious minerals, the KOMATSU D21 bulldozer has what it takes to get the job done.

Technical requirement

1. All parts shall be cleaned before assembly without any sundries;

2. Apply a small amount of clean oil to the grinding surface of the floating seal ring; ensure the axial direction after assembly

The displacement is 0.3-0.6 mm

3. Carry out the pressure test before oil injection, and there is no air leakage under the pressure of 0.5-0.6mpa;

4. After installation, inject clean sae80w-90 gear oil (the oil volume accounts for about the cavity

90% ~ 95% of the volume;

5. Run it in for 3-5 minutes after refueling to make it operate smoothly;

6. After the surface is clean, spray two coats of antirust paint.

Painting

Cleaning

Assembly

Stock