GIW delivers non-stop solutions for boosting productivity and profits. The MDX pump, the heart of the mill circuit, tackles the most extreme duty conditions.

The features of the MDX pump combine to create a head / quantity and efficiency curve critical forefficient mill operation. The final result is a large BEP "sweet spot" providing stable sump levels over a large variation of flows. The MDX pump maximizes productivity and minimizes cost by matching operating cycle times with scheduled mill outages.

Select the MDX for your next mill circuit application to help ensure cost-effective and continuous operations.
Unit of Measure


Assembly Number

N/A 0814X

Suction Flange

N/A 24" (Dimensions Similar to 28" ANSI 250# Flange)

Discharge Flange

N/A 22" (Dimensions Similar to 26" ANSI 250# Flange)


N/A N7808 Frame, 1300 hp / 1800 rpm

Total Length Pump Assembly

N/A 284.27 in7220.46 mm

Pump Length to Suction Face

N/A 113.77 in2889.80 mm

Pump Length to Discharge

N/A 98.02 in2489.71 mm

Distance between Shafts (Pump - Reducer)

N/A 12.25 in311.2 mm

Reduce Length

N/A 47.8 in1214.1 mm

Distance between Shafts (Reducer - Motor)

N/A 0.25 in6.35 mm

Motor Length

N/A 110.20 in2799.10 mm

Minimum Distance for Impeller

N/A 55.51 in1410.0 mm

Base Length

N/A 226.00 in5740.40 mm

Base Width

N/A 75.10 in1907.54 mm

Base to Pump Centerline

N/A 56.40 in1432.60 mm

Distance between Centerline Pump and Motor

N/A 26.50 in673.1 mm

Height from Centerline Pumps to Discharge Flange Face

N/A 56.40 in1432.60 mm


GIW Pump
Gear Reducer
HS Coupling
LS Coupling
GIW Subbase

Pump Weight Breakdown

Pump Casing: 8.483 kg / 18.662 lb
Suction Plate: 1.856 kg / 4.083 lb
Suction Liner: 2.149 kg / 4.728 lb
Pedestal: 2.079 kg / 4.574 lb
Bearing Assembly: 1.903 kg / 4.187 lb
Impeller: 2.558 kg / 5.628 lb

Estimated Weights

Pump: 24.238 kg / 53.324 lb
Motor: 6.396 kg / 14.071 lb
LS Coupling: 295 kg / 649 lb
HS Coupling: 81 kg / 178 lb
LS Guard: 25 kg / 55 lb
HS Guard: 11 kg / 24 lb
Gear Reducer: 2.313 kg / 5.089 lb
Sub-Base: 3.824 kg / 8.413 lb

APPROX. TOTAL WEIGHT: 37.183 kg / 81.803 lb

Design Features

Lower Specific Speed Design
A large diameter impeller results in slower pump operation resulting in extended parts wear life. In addition, the lower specific speed allows the pump operations to meet the variable flow conditions confronted in modern mill circuits.

Up to 300 psi Pressure Rating
Thicker cross sections translate into long and reliable pump service life.

Deep Base Circle
Minimizes aggressive particle impingement providing a "sliding" wear action. Typical abrasive wear drops dramatically.

Oversize Shrouds
Enhanced vane performance provides added clearing action minimizing recirculation and wear between the impeller and suction liner.

Patented Inlet 5V Impeller
Designed to handle both liquid and solid phases within the slurry. This maximizes pump performance and wear life.

Patented Slurry Diverter
GIW’s latest technology dramatically increases suction liner life by reducing particle recirculation between the impeller and liner.

Adjustable Suction Liner
Extended suction liner wear life maximizes productivity and minimizes cost by matching operating cycle times with scheduled mill outages.