Planetary Mixers

CONSTMACH high speed Planetary concrete mixer is the best in its class. From its beginnings as an uncompromising basic design it has been continuously refined over many years, so that today’s product contains the little touches that you expect. The planetary (or countercurrent) design has one or two mixing stars that rotate themselves while also rotating around a central point, allowing each arm to cover the whole mixer floor in a number of revolutions. This powerful mixing action is both fast and thorough, results in a mixing time, after water is added, of 30 seconds or less for most types of concrete. The result is greater throughput, providing more concrete per hour for the same size plant, as well as better consistency and greater strength or, on the other hand, a saving on cement. Constmach’s planetary design is superior to turbine and twin-shaft designs for production of all types of dry-cast concrete. The reason for this is its intense mixing action, which breaks up zero-slump mix quickly.


  • Up to 30% greater pan volume than many others rated for the same output, ensuring that it will carry the full rated load and mix it properly.
  • Performs equally well on full and small partial batches – the ARMS do the mixing.Paddles are needed for discharge only.
  • Large reduction gearbox and oil bath is cool running.Compare with others using small commercial gear units in tightly cramped, unventilated spaces that can only withstand intermittent duty without overheating and eventual breakdown.
  • 5 year / 10,000 hour guarantee on gearboxes.
  • Three-armed stars have better mixing action than two-arm and last longer.
  • Perfect countercurrent mixing action gives higher strength concrete, saves 10 – 15% cement compared with pan or drum mixers.
  • Rubber sealed discharge doors run smoothly and eliminate leakage of water.
  • Optional additional discharge doors, to 4 maximum.
  • Complete cleanout without requiring extra cleanout mechanisms.
  • Hydraulic door mechanism gives powerful controllable open/close action.
  • Motors and gears rated for occasional startup with full load, without complication of hydraulic coupling. Not recommended for regular use.
  • Large half-moon cover (smaller models) or wide segmented covers (to MP3750) giving safe, quick access for cleaning.
  • High-security locking cover latch disables startup, ensuring safety even if separate lockout switch is overlooked.
  • 15 mm Ni-Hard cast iron liner tiles and mixing blades give more wear life than most other linings.
  • Small, identical floor tiles are low cost and can be individually replaced.
  • Optional Chromium Carbide cladded plates and paddles available at extra cost for extreme wear applications.
  • Optional rubber blades/paddles for use with aggressive aggregates.
  • Electrical wiring meets UL requirements.Motors are CE;UL available.
  • Best value for money in its class.
Planetary Mixers Technical Specifications
CPLN - 0.5
CPLN - 0.75
CPLN - 1
CPLN - 1.5
CPLN - 2
Charging Volume 750 lt 1000 lt 1.500 lt 2.250 lt 3.00 lt
Fresh Concrete Volume 625 lt 875 lt 1.250 lt 2.000 lt 2.500 lt
Compacted Concrete Volume 500 lt 750 lt 1.000 lt 1.500 lt 2.000 lt
Motor Power 15.5 kW 30 kW 45 kW 2 x 30 kW 2 x 37 kW
Side Body Wearing Plates 10 mm Hardox 450 10 mm Hardox 450 15 mm Hardox 450 10 mm Hardox 450 15 mm Hardox 450
Bottom Wearing Plates 10 mm ST52 10 mm ST52 10 mm ST52 10 mm ST52 12 mm ST52
Mixing Arm Wearing Plates 25 mm Ni-Hard 25 mm Ni-Hard 25 mm Ni-Hard 25 mm Ni-Hard 30 mm Ni-Hard
Discharge Door
Maintanence Door Safety Switch
Our shipping friendly twin shaft mixers minimize the transport cost of our clients with its modular structure and availablity to be shipped within closed truck trailers and 40 ft OT containers.
Planetary Mixers Video
Planetary Mixers General Layout

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