Based on the most recent information available, the Kato HD450-7 is a model of hydraulic excavator manufactured by Kato Works.

Here are some key features and specifications of the Kato HD450-7 excavator:

1. Operating Weight: The operating weight of the Kato HD450-7 typically ranges from approximately 43,000 kg (94,800 lbs) to 45,000 kg (99,200 lbs), depending on the configuration and attachments.
2. Engine: The HD450-7 is powered by a diesel engine that provides the necessary power and performance for excavation and loading tasks. The specific engine model, power output, and emission compliance may vary based on regional specifications.
3. Digging Depth: The maximum digging depth of the HD450-7 excavator is typically around 7,900 mm (26 ft), allowing it to handle deep excavation tasks efficiently.
4. Bucket Capacity: The bucket capacity can vary depending on the specific configuration and attachments. Generally, the HD450-7 has a bucket capacity ranging from approximately 1.8 m³ (2.4 yd³) to 2.5 m³ (3.3 yd³), providing good productivity for material handling and loading operations.
5. Reach and Dump Height: The maximum reach of the HD450-7 typically extends to approximately 11,000 mm (36 ft), and the maximum dump height is around 8,000 mm (26 ft), enabling efficient loading and dumping of materials.
6. Operating Environment: The HD450-7 is designed with operator comfort and safety in mind. It often features a spacious and ergonomic cab, adjustable seating, air conditioning, and intuitive controls for enhanced productivity and reduced operator fatigue.