The MAI®400NT grout pump for reliable performance
User-friendly injection systems: you can rely on the legendary MAI®400NT
The most modern manufacturing methods available have been applied to make a grout pump that is practically indestructible! That means you can rely on our injection systems for everything from underground construction to soil consolidation works to securing slopes. The long service life and low susceptibility to error of the MAI®400NT provides maximum reliability and value for money.
User-friendly interface and easy maintenance grout pump
This injection system can also be controlled via an interface to the MAI®LOG data logging system. That means clear and simple operation with maximum convenience and the best quality of mixed mortar grouting material.
Maintenance is also very simple with service-friendly modular construction and the easy-to-clean mixing zone. It can be dismantled in one move for speed cleaning. The MAI®CODUR stainless steel and hot-dip galvanised components guarantee a long service life and corrosion protection.
Recognition for MAI’s outstanding quality
The MAI®400NT has quite a reputation in the tunneling world, based on its outstanding user-friendly reliability. It has even been awarded a prize for innovation and research. Sustaining such a high reputation over a number of decades is what MAI® do best.
There is a MAI grout pump that is perfect for your project! Talk to MAI and find out more about the MAI®400NT for all your mining, tunnelling and excavation work.
|Heavy Construction Tunnels, Dams, Shafts||cement, anchor mortars, premixed cement/sand/flyash mixes||soil & rock||XXX|
|anchor, rock bolts||XXX|
|Mining||cement, anchor mortars, premixed grouts||anchor, rock bolts||-|
|Geotechnical||cement, geothermal mortars, premixed grouts||geothermal||XXX|
|Building Construction||cement, premixed grouts||hollow filling-windows/doors||-|
|Restauration Repair||cement, premixed grouts, fireproofing, coating mortars, plasters/stuccos||spraying||-|
|topping/bonded overlays Endbeschichtungen||-|
-: not suitable | X: limited suitability | XX: suitable | XXX: very suitable
|Total system power||6,2kW|
|Power input||200 V|
|Fuse||32 A||32 A||32 A||32 A||32 A||32 A||32 A||16 A||16 A|
|Digital water meter system||included||included||included||included||included||included||included||included||included|
|Water pump||optional||optional||optional||optional||optional||optional||optional||not available||not available|
|Water system 3/4" for MP12 - MP21||optional||optional||optional||optional||optional||optional||optional||not available||not available|
|Dimensions (LxWxH)||1755 x 710 x 959 mm|
|Hopper capacity||75 Litre|
|Pump outlet size||6/4" NW25 Coupling System MAI®|
|Filling height||960 mm|
|System weight||approx. 230 kg|
|Water pressure||min. 2 bar (when machine is in operation)|
|MAI®440NT - Flow Rate (Litre / Minute)|
|TYPE OF WORM PUMP||280 rpm||200/240 rpm||280 rpm||200 rpm||200/240 rpm||MAX. PRESSURE||MAX. PARTICLE SIZE|
|MP 3M||16 l/m||11,5 / 14 l/m||16 l/m||-||-||40 bar||4 mm|
|MP 2L||11 l/m||8 / 9,5 l/m||11 l/m||8 l/m||8 / 9,5 l/m||40 bar||4 mm|
|MP 3L||18 l/m||13 / 16 l/m||18 l/m||13 l/m||13 / 16 l/m||40 bar||4 mm|
|MP 4L||22 l/m||16 / 19 l/m||22 l/m||16 l/m||16 / 19 l/m||40 bar||4 mm|
|MP 8L||35 l/m||25 / 30 l/m||35 l/m||25 l/m||25 / 30 l/m||35 bar||6 mm|
|MP 8L Soft||35 l/m||25 / 30 l/m||35 l/m||25 l/m||25 / 30 l/m||35 bar||6 mm|
|MP 12L||47 l/m||34 / 41 l/m||47 l/m||34 l/m||34 / 41 l/m||35 bar||6 mm|
|MP 12L short||42 l/m||30 / 36 l/m||42 l/m||30 l/m||30 / 36 l/m||30 bar||6 mm|
|MP 21L||88 l/m||63 / 75 l/m||88 l/m||63 l/m||63 / 75 l/m||20 bar||8 mm|
Download the brochure to find out more!
The reliable injection pump for extreme conditions
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.Learn more