HM PO Pump
Variable Displacement Closed Circuit Axial Piston Pumps, Displacement 7 to 18 cm³ (0,43 to 1,10 in³), Continuous 250 | 230 bar (3625 | 3335 psi), Pressure Intermittent 280 | 250 bar (4060 | 3625 psi), (Power-Transmission Hydrostatic Transmission).
The axial piston pumps series HM PO is designed to operate in a closed circuit. The available control systems make it easy to use these pumps in any application for industrial and mobile fields.
Development of rotating groups, especially designed, united to an accurate study of oil passage sections, allow high-speed rotation, like required by modern diesel engines, giving extreme reliability for working peak pressure up to 300 bar.
The pumps can be coupled in tandem version, using the appropriate configurations available on request.
Closed circuit axial piston pumps are used as hydrostatic transmission components in self-propelled machines and for rotary drives in both fixed and mobile equipment of all kinds.
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Specifications
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Performance Characteristics
Designed to operate in a closed circuit - - - Displacement 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 16 | 18 (cm³) 0,43 | 0, 49 | 0,55 | 0,61 | 0,67 | 0,73 | 0,80 | 0, 85 | 0,98 | 1,10 (in³) - - Continuous Pressure - - Displacement 7 thru 16 | 250 (bar) Displacement 7 thru 16 | 3625 (psi) Displacement 18 | 230 (bar) Displacement 18 | 3335 (psi) - - Intermittent Pressure - - Displacement 7 thru 16 |280 (bar) Displacement 7 thru 16 | 4060 (psi) Displacement 18 | 250 (bar) Displacement 18 | 3625 (psi) - - Peak Pressure - - Displacement 7 thru 16 | 300 (bar) Displacement 7 thru 16 | 4350 (bar) Displacement 18 | 280 (bar) Displacement 18 | 4060 (psi) - - Speed - - 3600 min¹ (max) - 500 min¹ (min) - - - Weight 8,5 (kg) 18,7( lbs.) - - Continuous Pressure: Average pressure of the normal operating pressure range - Intermittent Pressure: Pressure that can be maintained for short periods (for about 10% of the work cycle) - Peak Pressure: Maximum allowable pressure regulated by maximum relief valves (max 1-2% of the work cycle) - Boost Pump
Single Pump Displacement: 5 (cm³), 0.30 (in³) Pressure: 12 (bar), 174 (psi) Tandem Pumps (one boost pump) Displacement: 8 (cm³), 0.48 (in³) Pressure: 12 (bar), 174 (psi) Tandem Pumps (two boost pumps) Displacement: 5+5 (cm³), -.30+0.30 (in³) Pressure: 12 (bar), 174 (psi) Options
Variety of control options Direct manual, servo-assisted manual, remote hydraulic, remote hydraulic with feedback, On-Off electric in closed center and open center configurations, proportional electric and hydraulic automotive Features and Benefits
The various control systems available makes the HM PO easily adaptable to application needs both in the industrial and in the mobile fields - High-Speed rotation Like required by modern diesel engines Reliability for working peak pressure up to 300 bar - Tandem versions By means of coupling flanges optionally available Electronic control logic options include automotive, constant speed drive, shift-on-the-fly and feedback - Multiple units can be assembled using axial piston pumps of different sizes, and gear pumps - Possible configurations include circuits with built-in exchange valves and pressure relief valves - Markets
Mobile - Industrial - Forestry - Agriculture - Applications
Closed circuit axial piston pumps are used as hydrostatic transmission components in self-propelled machines and for rotary drives in both fixed and mobile equipment of all kinds - Fixed displacement motors can also be used in open circuit application Suitable for a variety of hydraulic circuits Hoists - Fans - Drives - -
Market Applications
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