Abstract: Mixing device for handling of a cement product, comprising a carryable mixing unit for mixing of powder and water, a feeder unit for feeding in powder to the mixing unit and a flexible tube packet connecting the mixing unit to the feeder unit, wherein the mixing unit comprises a receiver part for powder, dosing equipment for powder, dosing equipment for water, a mixer for mixing of powder and water and an outlet pump for feeding out the finished mixed cement product. An advantage of the invention is that the mixing unit can be carried by one person, which simplifies the handling of the mixing unit. A further advantage is that dosing and mixing of a cement product takes place automatically. The mixing of the cement product thus may take place continually.