HM PZA 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 PZA have been 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 350 bar.
It is possible to couple tandem versions, by means of coupling flanges optionally available.
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) 0,42 | 0,49 | 0,55 | 0,61 | 0,67| 0,73 | 0,80 | 0,85 | 0,98 | 1,10 (in³) Continuous Pressure 250 | 230 (bar) 3625 | 3335 (psi) Intermittent Pressure 280 | 250 (bar) 4060 | 3625 (psi) Peak Pressure 300 | 280 (bar) 4350 | 4060 (psi) - - Speed - - 3600 minˉ¹ (max) - 500 minˉ¹ (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) - Boots 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), 0.30+0.30 (in³) Pressure 12 (bar), 174 (psi) Features and Benefits
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 - Options
Available with a 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 auotmotive - Electronic Control Logic Options Include automotive, constant speed drive, shift-on-the-fly, and feedback - 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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