An updated crankshaft and connecting rods with larger journals increase durability by reducing contact pressure and optimizing bearing performance, while a new cylinder block helps increase structural capability. In addition, all valves are equipped with oil metering stem seals and reduced contact pressure geometry for maximum life.

The C32B is also more reliable. Updates include a thicker shim gasket to increase head-to-block sealing, and more durable exhaust valves, especially at higher power. The new Dual Sensor Coolant Protection feature detects potential coolant leaks sooner to avoid costly downtime.

For 6020 shovels in the field, Caterpillar offers an affordable option to upgrade to the C32B engine core. With closed lube and fuel systems, the Long Block Plus (LB+) minimizes the risk of contamination during rebuilds and saves time vs a full rebuild.

In addition, Caterpillar offers a new-with-core (NWC) offering, which allows the return of a C32 core for Cat Reman credit, reducing the cost of a new or remanufactured engine. 

Key to the 6020’s high efficiency is Hydraulic Optimization, which dynamically assigns individual pumps or groups of pumps to deliver the exact flow and pressure that each hydraulic function requires. An intelligent pump managing system continuously evaluates actual engine and hydraulic operating values against set values and adjusts pump output accordingly. This results in efficient use of the engine for greater productivity, less energy and fuel consumption, and reduced component wear. Hydraulic Optimization also cuts down on waste, eliminates metering losses and reduces excess heat.

The Independent Oil Cooling system is a more efficient means of cooling that protects and extends the life of hydraulic components. The system is independent of return oil, achieving efficiency through the utilization of dedicated pumps that provide cooling capacity as needed, whether the engine is idling or under load.
 

The 6020 features highly durable structures designed to withstand the toughest loading conditions, and it’s designed for reliability — from robust tracks and an enhanced undercarriage to a highly reliable crawler and extended swing component life. The result is the uptime needed to keep operations moving.

High reliability and durability are hallmarks of the 6020. Downtime is reduced thanks to a heavy duty undercarriage with a longer life and increased crawler life made possible by three carrier rollers that eliminate unnecessary wear and assist in easier track tensioning.

Features that contribute to easier serviceability also reduce downtime. The spacious walk-through power module provides exceptional component accessibility, as does the swing system, which features a boom-mounted hydraulic valve block, ground-level accessible service fluid fill points and jump start receptacle.

The power module can be quickly swapped out for a spare, then transported for repair in a safe, convenient and clean environment. Undercarriage service is simplified with an automatic track tensioning design that requires no manual adjustment.

In addition, the C32B engine delivers maximum uptime, without work interruption for regeneration, engine derate, or cold weather treatment of Diesel Exhaust Fluid.
 

The 6020 features a next generation cab that provides better visibility than competitive shovels, with 40% window area of outer cab surface.

Operators enjoy excellent visibility to digging and loading areas thanks to a large windshield and in-floor window. Visibility is further enhanced by strategically positioned and high-powered LED lights. The result is optimized operator situational awareness and safe machine positioning and truck loading.

The quiet and fully pressurized cab offers an ergonomic operator seat and controls, superior insulation, extensive in-cab air distribution via a powerful HVAC unit and multiple, optimally positioned vents.

Fatigue is reduced by the Electronic-Hydraulic Servo Control, which delivers fast and precise machine reactions. No hydraulic lines are present in the cab or the cab module, ensuring a clean arrangement with less noise emission.