Gyms can benefit from various types of floor cleaning machines and high-pressure cleaners depending on the specific needs of their facility. 

Floor-scrubbers: Gyms with large floors may benefit from using floor-scrubbers, which can clean large areas quickly and efficiently. These machines use rotating brushes and cleaning solution to remove dirt and grime from floors, and then vacuum up the dirty water.

Wet/dry vacuums: Wet/dry vacuums are versatile machines that can be used for a variety of cleaning tasks, including spills, wet floors, and dry debris. They are especially useful in areas where moisture is common, such as locker rooms and shower areas.

Steam cleaners: Steam cleaners use high-pressure steam to clean and sanitise surfaces, making them ideal for gym areas that require frequent cleaning and disinfection, such as workout equipment, yoga mats, and exercise mats.

Pressure washers: Pressure washers use high-pressure water to clean outdoor areas such as paths, car parks, and building exteriors. They can also be used to clean gym equipment that has accumulated dirt and grime.

Overall, the best type of cleaning machine for a gym will depend on the specific needs of the facility, such as the size of the gym, the types of surfaces that need to be cleaned, and the frequency of cleaning required.