This appears to be a concrete cutter or asphalt cutting machine, likely a walk-behind model, used for cutting hard materials like concrete, asphalt, masonry, and brick.
Here's some information for shopping:
Purpose: Designed for cutting concrete or asphalt in road repair, construction, or utility projects.
Engine Type: Can be powered by gasoline/petrol or diesel engines, with some electric models also available.
Blade: Typically uses a diamond saw blade for efficient cutting of hard materials.
Features: Often includes features like reinforced chassis for reduced vibration, water tanks for cooling and dust control, and ergonomic designs for user comfort.