Different Types of Japanese Dozers and Their Uses

Dozers are very commonly used construction machine in any kind of construction projects. Dozer is equipped with a blade attached to its front to push (doze) materials ahead. It is an effective and versatile construction machine for the construction site and construction machine team. In the site the dozers are generally used for pushing materials, land clearing, ripping, helping scrapers in loading, and towing other pieces of construction equipment. Like other construction machinery dozers are come up with different size and type to meet the various site requirements. Choosing the right size and type dozer is very important to get maximum productivity for the specific task.

Classification by size: Based on size dozers are classified as big dozers and small or mini dozers. Mini dozers are used in the garden for landscaping or place where the task is simple and light and do not need much power, traction and flotation. You can find good small dozers of HITACHI and other brand as well. Larger dozers are used for specialized jobs and require heavy power, traction and flotation. For example, KOMATSU D575A-3SD is the world biggest production and most powerful supper bulldozers built by Komatsu in Ishikawa, Japan. For bulldozing, bigger size or type is really better. The bigger dozer works more efficiently and more aggregate they can push. Their blades of bigger dozers are specially designed to provide good control over materials during shoving.

Classification by running gear: Technically dozers are classified on the basis of running gear.

1. Crawler type (track laying machines )

2. Wheel type.

1. Crawler type: In this type of dozer the undercarriage is track. They are designed for high tractive effort jobs. No other pieces of machine can provide the power, traction and flotation as the crawler type. It can easily operate on 45 ° steep slopes. The crawler type is effective on a variety of soils but fine sand increase running gear wear and give fast return speed, 8-26 mph. It can work over any terrain and this type is suitable for short travel distances. They can operate on soft ground and slick surface conditions. They can handle tight soils.

2. Wheel type: In this category of dozer, flotation increase due to greater contact area of wider tires. Higher speed in excess of 30 mph for some models can be achieved in wheel-type dozer which is a bit advantageous over crawler type. The wheel type is effective on firm and abrasive soils that have no sharp edge pieces and give slow return speed, 5-10 mph. For level and work in downhill and long travel distances this type is suitable. But the operation become slow or even stops on soft and slick surface conditions. They are found best to handle loose soils.

Engine: To power most dozers internal combustion engines are used. The most common primary power units are the diesel engines. Smaller or mini machines are equipped with gasoline engines. The large scale task like tunnel work electric and air-powered dozers are used.

Blades: A dozer blade has a moldboard with replaceable cutting edges and side bits. Blades vary in size and design based on specific job purposes.

Whether you’re buying or renting dozer, the right size and type for your particular task is very important. Some jobs might require a specific type of blade or fixed tractor power, so choosing the dozer often means determining which features are necessary for your particular task and in which type dozer satisfy the requirements and maximize the work productivity.