Work hard，Is what Caterpillar is all about.

Innovation，It's from CaterpillarDNA

Take practical work as the foundation，Caterpillar dug up.

One way toBuild better、A more sustainable worldThe road

First hydraulic excavator  Completely change the operation site

Late 1960s，European mining sites are more sensitive to tonnage、More powerful machines create new demands.。Thus，The first generation of excavators came into being.。1970，Caterpillar always pays attention to market demand，A prototype excavator was launched in Europe and the United States.，It has attracted much attention。

1972，Caterpillar introduces the first hydraulic excavator to meet customers' real-world needs, the 225，Lifting by lifting、Excavation and loading efficiency，Completely changed the job site。

  1972Cat® (Carter) 225

For the next 40 years,，The first generation of excavators is constantly upgraded and replaced.，Each generation brought improvements in design.，Reducing fuel consumption、Reduce maintenance costs while，The performance of the equipment is also improving.。

New generation 320 hydraulic excavator with high efficiency and fuel economy

2007，Caterpillar Introduces New Model——320DType excavator。This model is equipped with technologies that optimize engine performance and reduce exhaust emissions.，To meet global emissions regulation，At the same time, it also laid the foundation for the introduction of future models.。

2017，New generation of 320 hydraulic excavators for medium to heavy duty applications launched。This machine is powerful.，While saving fuel consumption，Helping customers achieve their business goals efficiently，Achieve goals related to energy conservation and emission reduction。And 320DCompare，The new generation of 320 carries advanced“Black technology”And design improvements reduce CO2 emissions by up to 30 percent%。

 System performance optimization，Stable and reliable

The new generation 320 Hydraulic Excavator Series optimizes equipment system performance，Significantly increased productivity and efficiency。The success of the system，It also promotes more models to join the platform.。Until 2022，The system has been implemented in more than 50 models across Caterpillar's entire excavator product line.。

Extended maintenance intervals，Not only does it reduce downtime，It also reduces the amount of oil and filters that need to be replaced over the life of the machine。

 Save oil and reduce consumption，Low carbon and high efficiency 

Lower engine speed combined with large hydraulic pump，Delivers better performance while reducing fuel consumption。

Cat® GradeTechnologyCombines in-cab navigation and automatic control，Helps operator achieve leveling goal，At the same time, by improving efficiency、Job site productivity and accuracy reduce fuel consumption and greenhouse gas emissions。

Automatic control device for engine rotation speedAutomatically enters idle mode when the machine is not operating，To reduce unnecessary fuel consumption and greenhouse gas emissions.。

Cat® PayloadProvide real-time material weighing，Help improve loading efficiency、Job site productivity，And reduce the number of trips to the scale，Thereby reducing fuel consumption.。

“Dig”Victory is better、A more sustainable future

320 excavator is about to usher in a new iteration，It will include a battery-electric prototype of the 320 medium excavator.。While continuing the inheritance of innovation，Caterpillar also continues to demonstrate its commitment to providing diverse solutions to meet our customers' ongoing sustainability needs.。

Transforming the industry globally from the 1970s and 1980s，To now provide customers with a variety of products.、Services and solutions to make the jobsite greener、More efficient、More energy efficient——Caterpillar Excavator History，It is a wonderful epitome of Caterpillar's nearly 100 years of innovation and evolution.。Nowadays，Caterpillar is helping customers on their journey to energy transformation, driven by hard work and innovation，Building a Better Together、A more sustainable world。