The Caterpillar excavator 320B is a model of hydraulic excavator produced by Caterpillar Inc., a well-known manufacturer of construction and mining equipment. The 320B is part of Caterpillar's lineup of excavators, and it's designed for various earthmoving and excavation tasks. Here are some key specifications and features of the Caterpillar 320B excavator:

• Operating Weight: The operating weight of the Caterpillar 320B excavator typically ranges from approximately 44,000 to 51,000 pounds (about 20,000 to 23,000 kilograms), depending on the configuration and optional equipment.
• Engine: It is typically powered by a Caterpillar diesel engine, which provides the necessary horsepower and torque for digging and lifting operations.
• Bucket Capacity: The bucket capacity can vary, but it is generally in the range of 0.75 to 1.5 cubic yards (0.57 to 1.15 cubic meters).
• Maximum Digging Depth: The maximum digging depth of the 320B excavator is usually in the range of 20 to 22 feet (6.1 to 6.7 meters).
• Arm Length: The length of the boom and arm can also vary, affecting the machine's reach and digging capabilities.
• Hydraulic System: The excavator features a hydraulic system that powers the boom, arm, and bucket for digging, lifting, and other functions.
• Cab: The operator's cab is equipped with controls, instrumentation, and often includes air conditioning and other amenities for operator comfort.
• Tracks: The 320B typically has tracks for mobility, allowing it to move over various terrains.
• Attachments: Various attachments can be used with the 320B, including buckets, hydraulic hammers, and more, to adapt it for different tasks.