The reliable and user-friendly MAI®400HD grout pump

Innovative solutions for grouting works

Stainless steel components and hot-dip galvanised components guarantee a long service life for this grouting machine, as well as protection against damage. This is particularly true for the electrical components, which are certified for high protection class IP65 or NEMA4X.

Add integrated data logging

Add the MAI®LOG to your injection system to benefit from integrated data logging. The unit can be easily controlled through our MAI®LOG data logging and data monitoring equipment. This really is data logging made easy, with real-time analysis, recording all relevant data from injections and pile installation. Data import software makes it a simple task to transfer recorded data to a laptop or PC and see a consolidated overview with graphics and tables ­– produced automatically in Microsoft Excel.

Talk to MAI® today about the range of reliable MAI® injection systems. Maximum performance with minimum time and effort: make your project more efficient and economic with MAI®.




  Market Segments  




Heavy Construction Tunnels, Dams, Shaftscement, anchor mortars, premixed cement/sand/flyash mixessoil & rockXXX
void fillingXXX
anchor, rock boltsXXX
Miningcement, anchor mortars, premixed groutsanchor, rock boltsXXX
Geotechnicalcement, geothermal mortars, premixed groutsgeothermalXXX
well casingsXXX
abandoned shafts/holesXX
Building Constructioncement, premixed groutshollow filling-windows/doors-
Restauration Repaircement, premixed grouts, fireproofing, coating mortars, plasters/stuccosspraying-
resurfacing concrete/reparaturmörtel-
topping/bonded overlays Endbeschichtungen-

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


Technical Information

Total system power6,2 kW
Power inputprim. 1000 V - sec. 400 V
Fuseprim. 16 A
Transformer prim. 1000 V - sec. 400 Vincluded
Water meter system with flow meterincluded
Water pumpoptional
Water system 3/4" for MP12 - MP21optional
Protection classNEMA 4X, IP65
Dimensions (LxWxH)1770 x 1200 x 1085 mm
Hopper capacity75 Litre
Pump outlet size6/4" NW25 Coupling System MAI®
Filling height960 mm
Total weightapprox. 645 kg
Water pressuremin. 2 bar (when machine is in operation) 


 MAI®440HD - Flow Rate (Litre / Minute)  
 6 kW  
MP 3M-40 bar4 mm
MP 2L8 l/min40 bar4 mm
MP 3L13 l/min40 bar4 mm
MP 4L16 l/min40 bar4 mm
MP 8L25 l/min35 bar6 mm
MP 8L Soft25 l/min35 bar6 mm
MP 12L34 l/min35 bar6 mm
MP 12L Short30 l/min30 bar6 mm
MP 21L63 l/min20 bar8 mm


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

Can we help you? Our expert team of responsible employees is always ready to provide you with the advice you need.

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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