SLOW-SPEED TOP-ENTRY INDUSTRIAL MIXERS

Geared slow-speed mixers available in corrosion-resistant plastic materials

AR GEAR-DRIVE MIXERS

TOP ENTERING GEAR DRIVE MIXERS DESIGNED FOR USE WITH NON-PRESSURE TANKS. FIXED MOUNT MIXERS WITH CANTILEVERED SHAFT CONNECTED TO THE GEARMOTOR. CUSTOM-MADE LENGTHS TO SUIT THE DEPTH OF THE TANK.

  • Chemically resistant industrial mixers.
  • Slow speed mixing (with gear reducer).
  • Axial or angular gearmotors.
  • 4-6-8-pole electric motors.
  • High-efficiency three-blade or PBT four-blade impellers.
  • Mixer materials: PP, PVC, PVDF, INOX.
  • Impeller materials: PP, PVC, PVDF, INOX.
  • Cantilevered shaft connected to the gearmotor.
  • Custom-made lengths between 250 and 3500 mm.

Plastic version (PP – PVC – PVDF)

Gear reducer kW Poles Gear ratio rmp 50 Hz Ø impeller Lengths mm PDF
min max
AR30 Worm gear 0.12 - 0.18 4 13 108 200 mm 250 1000 DOWNLOAD PDF
AR30 Worm gear 0.12 6 13 70 200 mm 250 1500 DOWNLOAD PDF
AR50 Worm gear 0.25 - 0.37 4 13 108 300 mm 500 1500 DOWNLOAD PDF
AR50 Worm gear 0.18 - 0.25 6 13 70 300 mm 500 2000 DOWNLOAD PDF
AR70 Coaxial 0.55 - 0.75 4 12.2 115 500 mm 700 2000 DOWNLOAD PDF
AR70 Coaxial 0.37 - 0.55 6 12.2 75 500 mm 700 2500 DOWNLOAD PDF
AR70 Coaxial 0.18 - 0.25 8 12.2 57 500 mm 700 3000 DOWNLOAD PDF
AR100 Coaxial 1.1 - 1.5 4 12.7 110 700 mm 700 2500 DOWNLOAD PDF
AR100 Coaxial 0.75 - 1.1 6 12.7 70 700 mm 700 2500 DOWNLOAD PDF
AR100 Coaxial 0.37 - 0.55 8 12.7 55 700 mm 700 3500 DOWNLOAD PDF

We also supply special custom-made mixers. Please contact our technical department for any special requirements.

Metal version (AISI 304)

Gear reducer kW Poles Gear ratio rmp 50 Hz Ø impeller Lengths mm PDF
min max
AR30SS Worm gear 0.12 - 0.18 4 13 108 200 mm 250 1000 DOWNLOAD PDF
AR30SS Worm gear 0.12 6 13 70 200 mm 250 1500 DOWNLOAD PDF
AR50SS Worm gear 0.25 - 0.37 4 13 108 500 mm 500 1500 DOWNLOAD PDF
AR50SS Worm gear 0.18 - 0.25 6 13 70 500 mm 500 2000 DOWNLOAD PDF
AR70SS Coaxial 0.55 - 0.75 4 12.2 115 500 mm 700 2000 DOWNLOAD PDF
AR70SS Coaxial 0.37 - 0.55 6 12.2 75 500 mm 700 2500 DOWNLOAD PDF
AR70SS Coaxial 0.18 - 0.25 8 12.2 57 500 mm 700 3000 DOWNLOAD PDF
AR100SS Coaxial 1.1 - 1.5 4 12.7 110 750 mm 700 2000 DOWNLOAD PDF
AR100SS Coaxial 0.75 - 1.1 6 12.7 70 750 mm 700 2500 DOWNLOAD PDF
AR100SS Coaxial 0.37 - 0.55 8 12.7 55 750 mm 700 3500 DOWNLOAD PDF

We also supply special custom-made mixers. Please contact our technical department for any special requirements.

TECHNICAL CHARACTERISTICS

GEAR-DRIVE MIXERS

AR Series agitators are equipped with gear reducers (usually angular gearmotors with a monolithic cast iron casing lubricated-for-life). Coaxial gearmotors can also be fitted by request. Motor rotation speed: from 55 to 110 rpm. Possibility of use with inverter (60 Hz max).

HIGH-EFFICIENCY IMPELLERS

The profile of three-blade and four-blade impellers allows the use of low-power motors. The impellers are ideal for fluids that cannot be subjected to high turbulence or for mixtures where the pumping action must prevail over the shear. Dual impellers by request (in the metal version only).

Industrial top-entry mixers for chemical processes, water treatment, effluent treatment, polymer mixing, flocculant mixing

SLOW-SPEED MIXERS

Top mounted geared mixers used typically when gentle mixing of the liquid is required, as in the case of water flocculation where the impeller blades must not affect the suspended flakes. Characterised by clockwise rotation when looking from the motor side: the flow generated is always downward.

MADE OF PLASTIC AND METAL

Flange mounted mixers with cantilever shaft connected to the gearmotor with a rigid coupling. Custom-made construction lengths from 250 to 3500 mm depending on the depth of the tank. Available in corrosion-resistant plastic materials and stainless steel.

TECHNICAL CHARACTERISTICS

GEAR-DRIVE MIXERS

AR series agitators are equipped with gear reducers (usually angular gearmotors with a monolithic cast iron casing lubricated-for-life). Coaxial gearmotors can also be fitted by request. Motor rotation speed: from 55 to 110 rpm. Possibility of use with inverter (60 Hz max).

HIGH-EFFICIENCY IMPELLERS

The profile of three-blade and four-blade impellers allows the use of low-power motors. The impellers are ideal for fluids that cannot be subjected to high turbulence or for mixtures where the pumping action must prevail over the shear. Dual impellers by request (In the metal version only).

Industrial top-entry mixers for chemical processes, water treatment, effluent treatment, polymer mixing, flocculant mixing

SLOW-SPEED MIXERS

Top mounted geared mixers used typically when gentle mixing of the liquid is required, as in the case of water flocculation where the impeller blades must not affect the suspended flakes. Characterised by clockwise rotation when looking from the motor side: the flow generated is always downward.

MADE OF PLASTIC AND METAL

Flange mounted mixers with cantilever shaft connected to the gearmotor with a rigid coupling. Custom-made construction lengths from 250 to 3500 mm depending on the depth of the tank. Available in corrosion-resistant plastic materials and stainless steel.

EXAMPLES OF APPLICATIONS

  • Acidification and neutralisation of water
  • Fertigation systems
  • Dissolution of salts in liquids
  • Denitrification processes
  • Preparation of polyelectrolyte solutions
  • Chlorination systems
  • Preparation of chemical reagents

EXAMPLE OF
CHEMICAL PRODUCTS

  • Nitric acid
  • Phosphoric acid
  • Hydrochloric acid
  • Chlorine and derivatives
  • Sulphuric acid
  • Nitrogen, phosphorus, potassium
  • Nitrate, phosphate, sulphate
Chemically resistant top entering mixers with angular gearmotors

EXAMPLES OF APPLICATIONS

  • Acidification and neutralisation of water
  • Fertigation systems
  • Dissolution of salts in liquids
  • Denitrification processes
  • Preparation of polyelectrolyte solutions
  • Chlorination systems
  • Preparation of chemical reagents

EXAMPLE OF
CHEMICAL PRODUCTS

  • Nitric acid
  • Phosphoric acid
  • Hydrochloric acid
  • Chlorine and derivatives
  • Sulphuric acid
  • Nitrogen, phosphorus, potassium
  • Nitrate, phosphate, sulphate

CONSTRUCTION MATERIALS

PBT pitched blade turbine impeller with axial flow available in polypropylene

PP

The most widely used
anti-acid plastic polymer for use in corrosive environments. It offers good resistance to most acid and alkaline solutions and can be used, depending on the concentration of the aggressive liquids, up to a temperature of 80°C.

Three-blade marine propeller in PVC for chemicals and aggressive solutions

PVC

Plastic material with excellent resistance to acids, bases, saline solutions and organic compounds. PVC is generally used when treating sodium hypochlorite (NaClO).
At low temperatures it becomes fragile. The operating temperature is between 40 and 60°C.

Three-blade marine propeller in PVDF for highly corrosive chemicals

PVDF

Thermoplastic with exceptional resistance to corrosion and temperature. PVDF covers a wide range of uses but
is ideal for highly concentrated acids.It is not suitable for certain inorganic bases, such as caustic soda. Operating temperature: max. 100°C

Stainless steel three-blade propeller for general industrial mixing requirements

AISI 304

AR mixers are also available in stainless steel. This version can be used to mix industrial liquids that are not particularly aggressive, such as: fertilisers, manures, quenching treatments, wastewater, graphite suspensions, mineral oils. Maximum operating temperature: approx. 100°C

HOW TO CHOOSE A MIXER

In order to size a specific mixer and ensure effective mixing, it is necessary to evaluate several variables which often interact with each other: the type of liquid (or liquids) to be mixed, the volume to be handled, the purpose of the process, the geometry of the container, the position of the mixer. In this preliminary operation, the manufacturer’s experience is always a decisive added value, given the changing conditions that frequently affect industrial processes and liquids.

Savino Barbera mixers fitted with high efficiencly polypropylene impeller

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