
Characteristics of Sauer-Danfoss GRR074 GRL074 hydraulic pumps
Sauer-Danfoss GRR074 and GRL074 hydraulic pumps are axial piston pumps of the 45 series with variable displacement, designed for hydraulic systems with direct supply of working fluid. They are built on the basis of a rotary plate, which allows smooth adjustment of the oil supply depending on the need. The pumps are characterized by high reliability, low noise level and efficient operation even in difficult operating conditions.
Technical characteristics of Sauer-Danfoss GRR074 GRL074 hydraulic pumps:
- Type: variable displacement axial piston pump
- Design: with inclined washer, adjustable feed volume
- Working pressure (nominal): up to 280–300 bar
- Maximum pressure: about 310–350 bar
- Displacement: 74 cm3/rev
- Speed range: 500 – 3600 rpm
- Weight: approximately 32–36 kg (depending on version)
- Operating medium: mineral hydraulic oil, recommended ISO VG 32–46
- Regulation: mechanical or hydraulic, possible execution with different types of control (e.g. load, pressure, flow)
Scope of application of Sauer-Danfoss GRR074 GRL074 hydraulic pumps
GRR074 / GRL074 pumps are widely used in medium and large-sized mobile equipment. They are installed on:
- excavators (Komatsu, Hitachi, Doosan, Kobelco, Volvo),
- front-end and telescopic loaders (JCB, Caterpillar, Case, New Holland),
- road construction equipment (asphalt pavers, graders, rollers),
- agricultural machinery (harvesters, tractors),
- forestry machines,
- as well as other specialized equipment that requires a stable hydraulic drive.
Cross hydraulic pump numbers:
Installed in the model:
- Wirtgen Group: W 120 Fi, W 130 Fi, W 150 Fi, Vögele Super 1600-3i, Vögele Super 1800-3i, Hamm HD 12i, Hamm HD 14i, Hamm DV+ 70i
- Caterpillar: 308, 309 CR, 313, 315, 320 Next Gen, 914M, 918M
- Volvo CE: EC140E, EC160E, EC180E, L60H, L70H
- JCB: 131X, 140X, 150X, 155, 215, 270
- Liebherr: R 914, R 918, R 920, L 524, L 528
- Bomag: BW 135, BW 138, BW 154
- John Deere: 5R Series, 6M Series, 4630, 4730 sprayers
- Claas: Jaguar 830, Jaguar 850, Tucano 450
- Case IH: Maxxum 140, Maxxum 150, Puma 145, Puma 155
- New Holland: T5, T6, Guardian SP240
- Kubota: M7-132, M7-152
- John Deere Forestry: 1010G, 1110G
- Ponsse: Fox, Beaver, Gazelle
- Komatsu Forest: 901, 911, 931
- Genie, Haulotte, JLG: medium-class lifting platforms
- Holder, Aebi Schmidt: snow blowers, municipal equipment
The company "Aspect Plus" offers a wide range of spare parts for the repair of the Sauer-Danfoss GRR074 GRL074 hydraulic pump.