Cast iron gear motors including fan drives

  • Overview
  • Documents
  • Related products
  • Related applications
  • Related solutions

Specifically designed for demanding mobile equipment applications 

The compact size (20% smaller than conventional gear motors), with side and rear port options, adds to the design flexibility for installation in tighter places. Additionally, the use of high temperature seals and a dust resistant shaft seal protector improve performance and help extend operating life.

The D-motor differs slightly from the D-pump in internal design. The D-pump uses a thicker dual pressure-balanced thrust plate design to ensure high starting torque and long life with lower viscosity oils. The design of the body allows for high axial and radial external loads without the need for an outrigger bearing assembly.

For fan drive applications, a variety of valve options are offered for great flexibility. This allows for integrated reversing, proportional relief, fixed relief, and anti-cavitation valves.

Specifically designed for demanding mobile equipment applications where maximum performance is required at peak power levels and operating temperatures. Our cast iron motors ensure great productivity and excellent fuel efficiency along with reduced vehicle emissions.

Features and benefits

Non-tin-coated external surface allowing higher bearing loads due to high pressures

Thrust plate design for high efficiency over a wide temperature range

Teflon® coated bushings for extended life under extreme temperature and pressure conditions

A high strength cast iron construction for efficient performance in continuous operation

Custom engineered shaft bearings and dual pressure-balanced thrust plates for high starting torque and long life

Easy installation in optimized machines due to compact, power-dense design

Viton® seals are standard to sustain higher temperature and fluid capabilities

A variety of integrated valve options

Ratings Units 14 17 19 21 23 25 29 32 36 38 41 45
Displacement cm3/rev
[in3/rev]
14.9
[0.91]
17.6
[1.08]
19.9
[1.22]
22.4
[1.37]
23.2
[1.42]
26.2
[1.6]
30.6
[1.87]
34.4
[2.1]
38.6
[2.36]
40.9
[2.5]
42.9
[2.62]
48.3
[2.95]
Rated pressure bar
[psi]
276
[4000]
276
[4000]
276
[4000]
276
[4000]
276
[4000]
276
[4000]
276
[4000]
276
[4000]
276
[4000]
276
[4000]
241
[3495]
210
[3045]
Peak pressure bar
[psi]
303
[4400]
303
[4400]
303
[4400]
303
[4400]
303
[4400]
303
[4400]
303
[4400]
303
[4400]
303
[4400]
303
[4400]
265
[3843]
231
[3350
Speed at rated pressure Max 
min-1
(rpm)
3400
[600]
3400
[600]
3400
[600]
3400
[600]
3400
[600]
3400
[600]
3400
[600]
3400
[600]
3400
[600]
3400
[600]
3000
[600]
3000
[600]
Start speed at 1000 PSI Min
min-1
(rpm)
400 400 400 400 400 400 400 400 400 400 400 400
Weight kg
[lb]
8.46
[18.7]
8.53
[18.8]
8.66
[19.1]
8.80
[19.4]
8.94
[19.7]
9.07
[20.0]
9.38
[20.7]
9.53
[21.0]
9.84
[21.7]
9.93
[21.9]
10.16
[22.4]
10.43
[23.0]
Mass moment of inertia of internal rotating components x10-6 kg•m2
[x10-6 lbf•ft2]
113
[83]
127
[94]
138
[102]
146
[107]
156
[115]
172
[127]
191
[141]
206
[152]
228
[168]
239
[176]
255
[188]
276
[204]
Theoretical torque at rated pressure N•m
[lbf•ft]
62.6
[46.2]
65.7
[48.5]
73.4
[54.2]
79.2
[58.4]
87.0
[64.2]
98.2
[72.4]
112.1
[82.7]
122.9
[90.7]
139.6
[102.9]
146.9
[108.3]
138.4
[102.1]
132.4
[97.6]
Theoretical power at rated speed kW
[hp]
22.3
[29.9]
23.4
[31.2]
26.1
[34.9]
28.2
[37.6]
31.0
[41.3]
35.0
[46.6]
39.9
[53.2]
43.8
[58.4]
49.7
[66.3]
46.1
[61.1]
43.5
[58.0]
41.6
[55.5]
Case drain pressure bar
[psi]
5
[72.5]
5.0
[72.5]
5.0
[72.5]
5.0
[72.5]
5.0
[72.5]
5.0
[72.5]
5.0
[72.5]
5.0
[72.5]
5.0
[72.5]
5.0
[72.5]
5.0
[72.5]
5.0
[72.5]

Documents

Documents
Type Name Language Valid for Updated Download File type
User guide Rugid Cast Iron Group 2.5 Motor Technical Information English Multiple 17 Feb, 2023 4.3 MB .pdf
Data sheet Rugid Cast Iron Group 2.5 Motor with Speed Sensor Data Sheet English Multiple 17 Feb, 2023 548.4 KB .pdf

Related products

  • if (isSmallPicture) { Aluminum gear pumps from Danfoss; } else if (isBigColumns) { Aluminum gear pumps from Danfoss } else { Aluminum gear pumps from Danfoss }
    Aluminum gear pumps

    Our gear pumps are robust and reliable. They are the ideal choice for a wide range of applications. From small to medium and large off-highway vehicles, as well as for industrial applications. Low noise gear pumps are also available. They are the ideal solution for steering applications in cab-equipped mobile machines and for electric/hybrid machines.

  • if (isSmallPicture) { Cast iron gear pumps from Danfoss; } else if (isBigColumns) { Cast iron gear pumps from Danfoss } else { Cast iron gear pumps from Danfoss }
    Cast iron gear pumps

    Our cast iron gear pumps are 20% smaller than conventional gear products, and give great power density in a small package. Typical applications are skid steer loaders and heavy-duty machines.

  • if (isSmallPicture) { Shhark® aluminum low noise gear pump Gr 2; } else if (isBigColumns) { Shhark® aluminum low noise gear pump Gr 2 } else { Shhark® aluminum low noise gear pump Gr 2 }
    shhark® aluminum low noise gear pump Gr 2

    shhark® is our latest evolutionary low noise patented gear pump technology. An outstanding performance guaranteed throughout the whole life of the pump.

  • if (isSmallPicture) { Aluminum gear motors including fan drives from Danfoss; } else if (isBigColumns) { Aluminum gear motors including fan drives from Danfoss } else { Aluminum gear motors including fan drives from Danfoss }
    Aluminum gear motors including fan drives

    Our aluminum gear motors including fan drives are the ideal choice for a wide range of applications. From small to medium and large off-highway vehicles. Ultracompact fan drives are also available. They are ideal when both compactness and high efficiency are required.

Related applications

  • if (isSmallPicture) { Construction; } else if (isBigColumns) { Construction } else { Construction }
    Construction

    Space is limited on construction sites, and there are people working everywhere. Contractors need machines that can safely maneuver in a tight spot. At the same time they still need to be powerful enough to get the job done. At Danfoss, we deliver the components, software, and controls that enable your machines to run safely, efficiently and effectively.

  • if (isSmallPicture) { Crane and material handling; } else if (isBigColumns) { Crane and material handling } else { Crane and material handling }
    Crane and material handling

    Cranes and other large handling machines are required to operate within very specific load ranges. Danfoss provides pressure transmitters that supply load limiting systems with crucial data, safeguarding your equipment, your load, and your operator.

  • if (isSmallPicture) { Forestry; } else if (isBigColumns) { Forestry } else { Forestry }
    Forestry

    Rough, sloping terrain and cramped working conditions call for robust and reliable forestry machines. We make sure you can manage everything from cutting trees and transport to preparing the forest floor for replanting. We have the smart hydraulic solutions your machines need for precise and efficient forestry operations.

  • if (isSmallPicture) { Heavy machinery; } else if (isBigColumns) { Heavy machinery } else { Heavy machinery }
    Heavy machinery

    Think about the heaviest challenges in the open mining, road building and construction industry. Tasks such as cutting through rock or the Arctic permafrost; compacting thick layers of hot asphalt. As well as lifting huge, prefabricated wall panels into place.

  • if (isSmallPicture) { Lawn and turf; } else if (isBigColumns) { Lawn and turf } else { Lawn and turf }
    Lawn and turf

    Lawn and turf machines must adapt to their surroundings and the season – becoming sweepers or snow blowers as required. At Danfoss, we make hydraulic solutions to provide that flexibility and ensure safe and efficient operation.

  • if (isSmallPicture) { Road building ; } else if (isBigColumns) { Road building } else { Road building }
    Road building

    Advanced hydraulic systems from Danfoss deliver the machine performance that ensures road builders can meet their deadlines.

Related solutions