MAI®400NT

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.

 

 

Applications

 
 
 

MAI®400NT

Heavy Construction (soil & rock) with cement, anchor mortars, premixed cement/sand/flyash mixesXXX
Heavy Construction (void filling) with cement, anchor mortars, premixed cement/sand/flyash mixesXXX
Heavy Construction (anchor, rock bolts) with cement, anchor mortars, premixed cement/sand/flyash mixesXXX
Mining (anchor, rock bolts) with cement, anchor mortars, premixed grouts-
Mining (spraying) with cement, anchor mortars, premixed grouts-
Geotechnical (geothermal) with cement, geothermal mortars, premixed groutsXXX
Geotechnical (well casings) with cement, geothermal mortars, premixed groutsXXX
Geotechnical (abandoned shafts/holes) with cement, geothermal mortars, premixed groutsXX
Building Construction (hollow filling-windows/doors) with cement, premixed grouts-
Building Construction (precast) with cement, premixed grouts-
Restauration Repair (spraying) with cement, premixed grouts, fireproofing, coating mortars, plasters/stuccos-
Restauration Repair (underlayments) with cement, premixed grouts, fireproofing, coating mortars, plasters/stuccos-
Restauration Repair (waterproofing) with cement, premixed grouts, fireproofing, coating mortars, plasters/stuccos-
Restauration Repair (resurfacing concrete) with cement, premixed grouts, fireproofing, coating mortars, plasters/stuccos-
Restauration Repair (topping/bonded overlays) with cement, premixed grouts, fireproofing, coating mortars, plasters/stuccos-

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

 
1
Grout Job in Mining Industry, Sweden
MAI400®NT with automatic feeding, Japan
Grouting Drilled Boreholes for Geothermal Heat Pump System, Austria
Grouting of Self Drilling Anchors, Austria
Grouting for excravation support, India
Truck mounted Grout Pump MAI400®NT, Japan
Grouting of Drillholes, Singapore
Injection Work for Slope Protection, Sweden
Grouting Drilled Boreholes for Geothermal Heat Pump System, Swizerland
Grout Job in Well Construction, Taiwan
Data Recording & Backfilling Work for Avalanche Protection Barriers, Austria
Backfilling Work for Avalanche Protection Barriers, Austria
Assembling Process of Rotor/Stator
Assembly of Pump Unit

Technical Information

 MAI®400NT
Total system power6,2kW
Power input200 V
3Ph/PE/50Hz
200-220 V
3Ph/PE/50-60Hz
220 V
3Ph/PE/60Hz
400 V
3Ph/PE/50Hz
400 V
3Ph/PE/60Hz
440 V
3Ph/PE/60Hz
480 V
3Ph/PE/60Hz
575 V
3Ph/N/PE/60Hz
600/660 V
3Ph/N/PE/50-60Hz
Fuse32 A32 A32 A32 A32 A32 A32 A16 A16 A
Vibratorincludedincludedincludedincludedincludedincludedincludedincludedincluded
Digital water meter systemincludedincludedincludedincludedincludedincludedincludedincludedincluded
Water pumpoptionaloptionaloptionaloptionaloptionaloptionaloptionalnot availablenot available
Water system 3/4" for MP12 - MP21optionaloptionaloptionaloptionaloptionaloptionaloptionalnot availablenot available
Dimensions (LxWxH)1755 x 710 x 959 mm
Hopper capacity75 Litre
Pump outlet size6/4" NW25 Coupling System MAI®
Filling height960 mm
System weightapprox. 230 kg
Water pressuremin. 2 bar (when machine is in operation) 

 

 MAI®440NT - Flow Rate (Litre / Minute)  
 6,2 kW  
 200V
3Ph/PE/50Hz
200-220V
3Ph/PE/50-60Hz
220V
3Ph/PE/60Hz
400V
3Ph/N/PE/50Hz
400V
3Ph/N/PE/60Hz
440V
3Ph/N/PE/60Hz
480V
3Ph/N/PE/60Hz
575V
3Ph/N/PE/60Hz
600/660V
3Ph/N/PE/50-60Hz
  
TYPE OF WORM PUMP280 rpm200/240 rpm280 rpm200 rpm200/240 rpmMAX. PRESSUREMAX. PARTICLE SIZE
MP 3M16 l/m11,5 / 14 l/m16 l/m--40 bar4 mm
MP 2L11 l/m8 / 9,5 l/m11 l/m8 l/m8 / 9,5 l/m40 bar4 mm
MP 3L18 l/m13 / 16 l/m18 l/m13 l/m13 / 16 l/m40 bar4 mm
MP 4L22 l/m16 / 19 l/m22 l/m16 l/m16 / 19 l/m40 bar4 mm
MP 8L35 l/m25 / 30  l/m35 l/m25 l/m25 / 30 l/m35 bar6 mm
MP 8L Soft35 l/m25 / 30  l/m35 l/m25 l/m25 / 30 l/m35 bar6 mm
MP 12L47 l/m34 / 41 l/m47 l/m34 l/m34 / 41 l/m35 bar6 mm
MP 12L short42 l/m30 / 36 l/m42 l/m30 l/m30 / 36 l/m30 bar6 mm
MP 21L88 l/m63 / 75 l/m88 l/m63 l/m63 / 75 l/m20 bar8 mm

Accessories

153758: Injection Hood
160388: MAI®TURBOPROP Mixing Shaft
153861: Injection Pressure Switch 0-16 bar
101361: Injection Hose NW25 L=20m, SYS-MAI®
100368: Hose blockage remove MAI®BLOCKAGE-EX L=10 m
165435: Wireless Remote Control

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.

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