Accoding to the numbers of grinding heads for floor grinder, we can mainly classify them into below types.

Single Head Floor Grinder

The single-head floor grinder has a power output shaft that drives a single grinding disc. On smaller floor grinders, there is only one grinding disc on the head, usually with a diameter of 250mm.

The single-head floor grinder is suitable for working in compact space. Because single-head floor grinders are difficult to achieve uniform scratches, they are used for rough grinding and epoxy, glue removal, etc.

Double Heads Floor Grinder

The double-head reversing concrete grinder has two power output shafts, each of which has one or more grinding discs; and the two power output shafts of the double-head machine rotate in opposite directions, that is, they rotate in opposite directions to balance the torque and make the machine easier to operate. In addition, the grinding width of a double-headed floor grinder is generally 500mm

Double-head concrete floor grinders cover twice the working area and finish the same ground in a little faster time than single-head grinders. Although similar to a single-head grinder, it is suitable for preliminary preparation but also has a polishing function.

Three Heads Floor Grinder

The planetary gearbox of the three-head planetary floor grinder has three power output shafts, each of which has a grinding disc, so that the planetary gearbox can rotate with the grinding disc mounted on it like a “satellite”. When they are used for surface treatment, both the grinding disc and the planetary gearbox rotate in different directions. The grinding width of the three-planet floor grinder is usually in the range of about 500mm to 1000mm.

Planetary grinders are suitable for grinding and polishing because the grinding discs can make overall scratches evenly contacting the ground. Compared with other non-planetary floor grinders, because the weight of the machine is evenly distributed on the three heads, it gives more pressure to the ground, so it is more powerful in grinding efficiency. However, due to the individual torque of the planetary grinder, the workers’ will be more tiring than operating other non-planetary machines.

Four Heads Floor Grinder

The four-head reversing grinder has a total of four PTO shafts, each of which has a grinding disc; and the four PTO shafts of the four-head machine rotate in opposite directions, that is, they rotate in opposite directions to balance torque and make the machine easier operating. The grinding width of a four-head reversing grinder is usually in the range of about 500 mm to 800 mm.

The four-head reversing floor grinder covers twice the working area and completes the same ground faster than the two-head reversing grinder. With rough grinding leveling and polishing functions.

After knowing the features of different heads floor grinders, so that you can choose a floor grinder better.