Caterpillar 444E ext*, 2007: Features and Technical Specifications

Caterpillar 444E ext*, 2007 Technical Specifications

Introduction

The Caterpillar 444E ext* is an excavator manufactured by Caterpillar Inc., a leading heavy equipment manufacturer. It is known to be a versatile machine with a number of features that enhance its efficiency. This article aims to analyze the various features and specifications of the Caterpillar 444E ext* excavator, highlighting both its merits and demerits.

Advantages of the Caterpillar 444E ext*

SideShift or CenterMount

One of the most significant advantages of the Caterpillar 444E ext* excavator is the option to choose between the SideShift or CenterMount attachment mountings. The SideShift system allows for lateral movement to accurately position the attachment bracket for the most effective performance. Meanwhile, the CenterMount option provides a more balanced option for larger attachments that need to operate across the width of the machine. These options give the operator a lot of flexibility in choosing the method that best suits the needs of the task at hand.

Dig Depth and Reach

The Caterpillar 444E ext* excavator has an SAE dig depth of 5923 mm, making it ideal for deep excavation jobs. The reach at ground level of 7263 mm allows for efficient earthmoving across long distances, saving time and fuel costs. These features make the Caterpillar 444E ext* an excellent choice for construction projects that require deep trenches or foundations.

Bucket Capacity and Width

The Caterpillar 444E ext* has a bucket capacity of 1.3 cubic meters, which is comparatively larger than some other excavators in its class. Combined with a bucket width of 1200 mm, the excavator can handle larger volumes of material efficiently. This makes it an excellent choice for construction projects that require bulk excavation and moving of material such as mining, quarrying, and demolition.

Loader Bucket Capacity

The Caterpillar 444E ext* excavator also has a loader bucket capacity of 1.3 cubic meters, which means that it can be used for loading and unloading tasks as well. Its twin ram slew system is efficient and powerful, and bucket breakout forces of 6118 kgf are among the highest in its class, making it ideal for earthmoving or loading high-density materials such as rocks.

Engine Capacity and Performance

The Caterpillar 444E ext* excavator is powered by a Cat 3054C DIT engine with a power output of 73 kW at 2200 rpm. The engine has a displacement of 4.4 liters and four cylinders, making it efficient and powerful. This engine provides reliability and robustness the industrial sector commonly requires. With a pump flow of 156 liters per minute and a relief valve pressure of 249 bar, the Caterpillar 444E ext* provides high performance and energy efficiency.

Transmission and Drive

The Caterpillar 444E ext* has a transmission system that can switch between PS or P’Shuttle modes smoothly. The four-wheel drive system provides stability and makes the excavator suitable for working on different terrains. The machine comes with ride control as an optional feature which provides improved stability when transporting heavy loads on rough terrain. The maximum speed of 40 km/h makes it possible to transport the excavator between work sites quickly and efficiently.

Disadvantages of the Caterpillar 444E ext*

Turn Circle Radius

One of the challenges of the Caterpillar 444E ext* excavator is its turn circle radius without brakes. At 11960 mm, the turn radius is larger than its competitors. This can pose difficulties when navigating the machine in tight or confined spaces.

Price

Another downside of the Caterpillar 444E ext* excavator is its price. As with all heavy machinery, the Caterpillar 444E ext* is a significant investment. It may not be within the budget of smaller companies, making it ideal for larger-scale projects that justify the cost. The high cost may be a significant barrier preventing some businesses from considering the machine.

Weight

The Caterpillar 444E ext* has an operating weight of 9089 kg, which is relatively heavier than some other competing models. This can limit the ease of transportation to and from different job sites and may also affect the level of fuel efficiency.

Real-World Applications

The Caterpillar 444E ext* is a well-rounded excavator that has found wide application in various industries. Its high capacity bucket makes it suitable for tasks that require moving large quantities of material, such as mining, quarrying, and excavation works. The excavator’s high loading capacity also enables efficient loading and unloading operations.

The Caterpillar 444E ext* also excels in tasks that require its excellent digging depth and reach capabilities. As such, it is often used in construction projects that involve deep trenches or foundations. Its ability to switch between SideShift and CenterMount options proves a significant advantage, allowing operators to tailor the machine for the specific task at hand.

Overall Assessment

The Caterpillar 444E ext* excavator boasts an array of benefits that make it an ideal choice for many industrial applications. Its high loading and bucket capacities make it suitable for large-scale projects that require moving significant amounts of material. The excavator’s excellent digging depth and reach capabilities, together with the operator’s ability to choose between the CenterMount and SideShift options, make it an ideal choice for various construction projects.

However, the machine falls short in some areas. Its price may be too steep for some companies to justify the purchase. The operating weight and large radius can also pose challenges when navigating the machine in confined spaces. Nonetheless, considering its positive features, the Caterpillar 444E ext* is one of the most versatile and efficient excavators available in the market.