MAI®400EX

MAI: Specialist grouting equipment in the toughest conditions

The MAI®400EX grout pump offers the highest levels of safety for underground mining

For the first time, functional safety and ATEX approval are combined in one single grout pump, making this the safest injection system available on the market. It holds an ATEX94/9EG certificate for hazardous areas EX I M2 150°C.

Safety functions include a pressure relief button to prevent accidental injury, thermal water flow and pressure monitoring, a dry running and overheating safeguard, as well as the overall antistatic and flame resistant design.

Easy to use and easy to maintain

It is designed for speed cleaning thanks to the use of electrically conductive and impact-resistant MAI®CODUR synthetic materials. All components are easily accessible for operating, cleaning, and maintenance. MAI guarantees unique mixing quality and new levels of cleaning convenience in a grout pump.

Operator controls are centrally located for efficient mortar production. The ESA (Electronic Service Assistant) prevents unnecessary downtime by constantly indicating the operating status. Save time and enable easy grouting with the simple replacement of the progressive cavity pump.

Do you want to read more about the latest cement injection technologies? Download the brochure to find out more about the extensive range of high-tech MAI grouting machines.

 

Applications

 
 

  Market Segments  

Materials

Applications

MAI®400EX

Heavy Construction Tunnels, Dams, Shaftscement, anchor mortars, premixed cement/sand/flyash mixessoil & rock-
void filling-
anchor, rock bolts-
Miningcement, anchor mortars, premixed groutsanchor, rock boltsXXX
sprayingXXX
Geotechnicalcement, geothermal mortars, premixed groutsgeothermal-
well casings-
abandoned shafts/holes-
Building Constructioncement, premixed groutshollow filling-windows/doors-
precast-
Restauration Repaircement, premixed grouts, fireproofing, coating mortars, plasters/stuccosspraying-
underlayments/unterfüllungen-
waterproofing-
resurfacing concrete/reparaturmörtel-
topping/bonded overlays Endbeschichtungen-

-: not suitable | X: limited suitability | XX: suitable | XXX: very suitable

 

Technical Information

 MAI®440EX
Total system power8 kW
Power input500 V
3Ph/PE/50Hz
660 V
3Ph/PE/50Hz
Fuse16 A16 A
Protection classATEX 2014/34EU
Group 1 Category M2 Temperature class 150°C
Digital water meter systemincluded
Water pumpnot available
Vibratorincluded
Dosing pumpoptional
Dimensions (LxWxH)1995 x 890 x 1070 mm
Hopper capacity75 Litre
Pump outlet size2" NW25 Coupling System MAI®
Filling height900 mm
Total weightapprox. 980 kg
Water pressuremin. 4 bar (when machine is in operation) 

 

 MAI®440EX - Flow Rate (Litre / Minute)  
 7,5 kW  
 500V
3Ph/PE/50Hz
660V
3Ph/PE/50Hz
  
TYPE OF WORM PUMP260 rpm260 rpmMAX. PRESSUREMAX. PARTICLE SIZE
EX 21032,5 l/m36 bar4 mm
EX 40050 l/m30 bar4 mm

Accessories

Part Nr. 100368: Hose Blockage Remover
Part Nr. 104065: Mortar Pressure Gauge
Part Nr. 164871: Codur Mixer Long

Download the brochure to find out more!

Instantly clean, durable and robust

MAI®CODUR scores top marks in terms of efficiency, cleanliness and durability during the tool cleaning process. MAI®CODUR allows you to keep cleaning costs to a minimum for all our new and existing machines and tools. Just rinse with water, and the job is done – gently, effectively and quickly.

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