Series 42 4T tandem axial piston pumps
Series 42 integrated tandem pumps are advanced hydrostatic units designed for medium power applications. They utilize a parallel axial piston/slipper concept with tiltable swashplates to vary displacements. These pumps provide an infinitely variable speed range between zero and maximum in both forward and reverse. Displacements are available as 28 cm3 x 2 [1.71 in3 x 2] to 51 cm3 x 2 [3.11 in3 x 2].
Features and benefits
- Advanced hydrostatic tandem units for medium power applications
- Compact design yields a high power density unit
- Parallel axial piston design utilizes tiltable swashplates
- Control options feature low hysteresis and responsive performance
- Infinitely variable speed range in forward and reverse
- Optional bypass function allows disabled machine movement
- Mechanical hydraulic and hydraulic proportional controls are available
Applications
- Asphalt pavers and vibratory rollers
- Skid steer loaders and articulated loaders
- Utility tractors and agricultural sprayers
- Windrowers and specialized harvesters
- Trenchers and rock drills
- Commercial mowers and brush/stump cutters
- Aerial lifts and forklifts
- Drill rigs and dumpers
- Sweepers and airport vehicles
Specifications
- Displacement per section: 28 cm3 to 51 cm3 [1.71 in3 to 3.11 in3]
- System pressure regulation: 210 bar to 415 bar [3,045 psi to 6,020 psi]
- Rated speed at maximum displacement: 2,900 rpm to 3,400 rpm
- Theoretical flow at rated speed: 95.2 l/min to 148 l/min [25.1 US gal/min to 39.1 US gal/min]
- Minimum operating temperature: -40°C [-40°F]
- Maximum continuous operating temperature: 104°C [220°F]
- Mass moment of inertia: 0.0031 kg m2 to 0.0076 kg m2 [0.0023 lb ft2 to 0.0056 lb ft2]