CAT 955L vs. 955K: Understanding the Evolution of Caterpillar's Crawler Loaders

[MikePhua]

Introduction
Caterpillar's 955 series crawler loaders have been pivotal in shaping the landscape of heavy machinery. The transition from the 955K to the 955L marked a significant evolution in design, performance, and operational efficiency. This article delves into the differences between these two models, providing insights into their specifications, performance, and real-world applications.
Historical Context and Development
The Caterpillar 955 series was introduced in the mid-20th century, with the 955K model emerging in the late 1960s. The 955K was renowned for its robust design and versatility, making it a popular choice for various construction and mining applications. By the early 1980s, Caterpillar introduced the 955L, building upon the foundation laid by the 955K but incorporating advancements in technology and design to meet the evolving demands of the industry.
Key Specifications and Differences

• Engine Model
  • 955K: D330T
    
  • 955L: D330T
    
• Horsepower
  • 955K: 115 hp
    
  • 955L: 130 hp
    
• Operating Weight
  • 955K: 28,000 lbs
    
  • 955L: 34,950 lbs
    
• Bucket Capacity (Heaped)
  • 955K: 1.8 cu yd
    
  • 955L: 2.1 cu yd
    
• Length with Bucket
  • 955K: 16.41 ft
    
  • 955L: 16.25 ft
    
• Width
  • 955K: 6.76 ft
    
  • 955L: 7.09 ft
    
• Height
  • 955K: 7.42 ft
    
  • 955L: 7.52 ft
    
• Ground Clearance
  • 955K: 1.35 ft
    
  • 955L: 1.37 ft
    

Note: All dimensions are approximate and may vary based on specific configurations.
Performance Enhancements in the 955L
The increase in horsepower from 115 hp in the 955K to 130 hp in the 955L provided enhanced power, allowing for improved lifting and digging capabilities. The larger bucket capacity in the 955L enabled operators to move more material per cycle, increasing productivity on job sites. Additionally, the increased operating weight contributed to better stability and traction, particularly in challenging terrains.
Real-World Applications and Operator Feedback
Operators have noted the 955L's improved performance in various applications, including road construction, material handling, and site preparation. The enhanced power and capacity allowed for more efficient operations, reducing cycle times and increasing overall productivity. However, some operators have mentioned that the increased size and weight of the 955L can make it less maneuverable in confined spaces compared to the more compact 955K.
Conclusion
The transition from the CAT 955K to the 955L represented a significant advancement in Caterpillar's crawler loader lineup. The 955L's increased power, capacity, and stability made it a formidable machine in the heavy equipment industry. While both models have their unique advantages, the 955L's enhancements have solidified its place as a preferred choice for many operators seeking improved performance and efficiency in their operations.