Concentric Rotary Drive Systems|Axle Cooling Systems|Cooling Fan Drive Systems|Electro-hydraulic Lifting Systems|Electro-hydraulic Auxiliary Steering|Electro-hydraulic Brake Systems|Transmission Clutch Actuation & Lubrication

Construction

Concentric supplies hydraulics to leading manufacturers of construction vehicles worldwide – articulated wheel loaders, excavators, dump trucks, motor graders, crawler dozers, vibratory rollers, wheel loaders, and skid steer loaders – to name a few. Main hydraulic functions include transmission pumps, fan drives, brake charge, axle cooling, supplemental steering and pilot hydraulics. Our products also feature in a vast range of auxiliary functions from ladder/hood lift and cab tilt to attachments and implements, auxiliary flow and vibratory motors. Among successful recent innovations, Concentric has developed an integral hydraulic motor and multiple pump design for axles on construction equipment in which the flow from the vehicle's main hydraulic system powers the hydraulic motor that in turn drives multiple pumps, circulating oil through the cooler and axles for cooling. No additional mounting pad or drive mechanism is required, resulting in a cost-efficient cooling system and better all-round axle performance and improved life.

W300

Displacement: 0.8 - 5.7cc
Max. Pressure: 230 bar (3,335 psi)
Max. Speed: up to 6000 rpm

GC

Displacement: 1.0 - 11.6cc
Max. Pressure: 275 Bar (4,000 psi)
Max. Speed: 4,000 rpm

High/Low

Displacement: 1.0 - 22.8cc
Max. Pressure: 207 Bar (3,000 psi)
Max. Speed: 4,000 rpm

Multiples

Displacement: 1 - 161cc
Max. Pressure: 275 Bar (4,000 psi)
Max. Speed: 4,000 rpm

W600

Displacement: 3 - 12cc
Max. Pressure: 276 bar (4,000 psi)
Max. Speed: 700 to 4,000 rpm

D

Displacement: 3.8 - 22.9cc
Max. Pressure: 207 bar (3,000 psi)
Max. Speed: 600 to 3,600 rpm

WQ900

Displacement: 6 - 23 cc
Max. Pressure: 230 bar (3,400 psi)
Max. Speed: 500 to 4,000 rpm

W900

Displacement: 6 - 28 cc
Max. Pressure: 276 bar (4,000 psi)
Max. Speed: 500 to 4,000 rpm

Calma Series

Displacement: 6.2 - 23.7cc
Max. Pressure: 250 Bar (3,625 psi)
Max. Speed: 4,000 rpm

F12 Ferra

Displacement: 16 - 41cc
Max. Pressure: 276 bar (4,000 psi)
Max. Speed: 3,000 rpm

F15 Ferra

Displacement: 19 - 50cc
Max. Pressure: 276 bar (4,000 psi)
Max. Speed: 3,600 rpm

W1500

Displacement: 19 - 50cc
Max. Pressure: 276 bar (4,000 psi)
Max. Speed: 500 to 3,300 rpm

F20 & F30 Ferra

Displacement: 23 - 161cc
Max. Pressure: 276 bar (4,000 psi)
Max. Speed: 3,600 rpm

F20LS/F30LS

Displacement: 23 - 161cc
Max. Pressure: 276 bar (4,000 psi)
Max. Speed: 3,600 rpm

W1200

Displacement: 25 - 33cc
Max. Pressure: 214 Bar (3,100 psi)
Max. Speed: 700 to 3,000 rpm

GC

Displacement: 1.06 - 11.65cc
Max. Pressure: 207 Bar (3,000 psi)
Max. Speed: 4,000 rpm

WM600

Displacement: 4 - 12cc
Max. Pressure: 276 bar (4,000 psi)
Max. Speed: 3,600 rpm

WM900

Displacement: 6 - 28cc
Max. Pressure: 276 bar (4,000 psi)
Max. Speed: 4,000 rpm

WM1500

Displacement: 19 - 50cc
Max. Pressure: 276 bar (4,000 psi)
Max. Speed: 3,000 rpm

F12 Ferra Motors

Displacement: 16 - 41cc
Max. Pressure: 276 bar (4,000 psi)
Max. Speed: 3,000 rpm

F15 Ferra Motors

Displacement: 19 - 50cc
Max. Pressure: 276 bar (4,000 psi)
Max. Speed: 3,600 rpm

FM20

Displacement: 23 - 87cc
Max. Pressure: 276 bar (4,000 psi)
Max. Speed: 3,600 rpm

FM30

Displacement: 58 - 161cc
Max. Pressure: 276 bar (4,000 psi)
Max. Speed: 3,000 rpm

Birotational

Displacement: 0.60 - 1.5cc
Max. Pressure: 180 Bar (2,610 psi)

HE

Displacement: 0.8 - 6.36cc
Max. Pressure: 255 Bar (3,700 psi)

Fan Drives

Power Range: Static to 150Kw
Max. Speed: 0 to 11,000 rpm

D

Displacement: 3.81 to 13.33 cc
Max. Pressure: 207 Bar (3,000 psi)