Grindex Major N / H It is a professional submersible drainage pump designed for intensive work on construction sites, in tunnels, mines and industrial facilities. Thanks to its robust construction and high wear resistance, these pumps are perfectly suited for pumping contaminated water and liquids containing abrasive particles.

The Grindex Major series features an efficient hydraulic system that allows for sustained high performance even under challenging operating conditions. The pumps can also run dry due to their patented air valve technology.

Key advantages

- Professional vacuum cleaner for construction and industrial sites
- opportunity to work in dry run mode
- high resistance to abrasive particles
- High-performance hydraulic system
- Integrated SMART engine protection
- Lightweight and compact design
The Major N version is for higher performance, and the Major H version is for greater lifting height.

Construction and materials

The Grindex Major N / H is an electric submersible drainage pump with an integrated three-phase motor and a closed impeller.

Main structural materials

housing - aluminium alloy
external casing – stainless steel
Hard-Iron™ alloy wheel
Suction hood – Hard-Iron™
sleeves – stainless steel
Fasteners – stainless steel
Diffusers – nitrile rubber
Mechanical seals – SiC / WC type double seals
Nitrile rubber O-ring seals

The vacuum cleaner has integrated patented AIR VALVE The system allows the engine to cool effectively and operate even in dry running mode. It also uses SMART electronic protection, protecting against phase loss, overheating and incorrect phase sequence.

Where is the pump used

Grindex Major pumps are used for:

construction sites
for tunnel and shaft drainage
in the mining industry
in infrastructure projects
in industrial facilities
water drainage system
in rental and service companies

Pumps for pumping polluted water and drainage liquids with abrasive particles.

Technical advantages

⚙️ Hard-Iron™ steering wheel with high wear resistance
💧 Possibility to work dry thanks to the AIR VALVE system
🛡 SMART electronic engine protection
Stainless steel shaft and casing
High performance and stable operation in demanding conditions

Consultation

If you are looking for a reliable drainage pump for construction, mining, or industrial projects – get in touch. We will help you select the most suitable Grindex pump according to your working conditions and performance needs.