This equipment is an industrial automatic parts washer / rotary table parts washer, specifically the Winona Van Norman JW24 model (as clearly shown on the maintenance schedule and warning labels on the chassis). 
Equipment Name and Manufacturer:
Common Name: Hot Water Parts Washer.
Model: Winona Van Norman JW24. 
Method of Operation and Function:
This machine is primarily used in engine and automotive repair and maintenance workshops to efficiently clean metal engine and machine parts (such as cylinder heads, engine blocks, and gears) from grease, oil, carbon, and stubborn dirt.
Brief Description of Operation:
1. Internal Placement: The parts to be cleaned are placed on the internal rotating turntable shown in the second image. 
2. Washing with Spray and Heat: The machine contains a pump and water heaters (temperatures reach up to 200 degrees Fahrenheit according to the control panel) that push hot chemical cleaning solutions through spray pipes equipped with nozzles to surround the part from all directions.