Hydraulic pressure intensifiers provide standard intensification ratios of up to 16 and yield maximum outlet pressures of 58,000 psi / 4,000 bar. Hydraulic pressure intensifiers supply maximum inlet flow rates of 21.16 GPM / 80 LPM. IC-Fluid Power offers 12 different series which are selected by the required inlet and outlet pressure in combination with flow rates. Custom configurations available. The Function: The MP-Series of hydraulic pressure intensifiers are reciprocating, and will automatically increase a supplied pressure to a higher end pressure. Fig. 1 shows the basic principle of the intensifiers, consisting of a piston arrangement and a Piston Control Valve, PCV. The position of the pistons will, at the end of every stroke, prompt a signal “S” to the PCV, which makes this change position and ensuring the pistons are moving in the opposite direction. This cycle will continue until the end pressure has been reached. At this point the pistons stop, and will now only move to maintain the end pressure.
The Cycle When a hydraulic fluid is supplied to the P-connection of the intensifier and the T-connection is connected to tank, the oil will be directed through the check valves CV1 and CV2 to the high pressure connection HP. If the internal pilot operated check valve POV is incorporated the oil will go straight to the HP connection. In this situation all the flow supplied goes to the high pressure side ensuring a fast filling of the system. When pump pressure has been reached, the intensifier pistons will deliver the flow to the high pressure side, and continue to do so until the required end pressure has been reached. The pistons then stop, and will only move to make up for a pressure loss due to leakage or consumption. A general flow-pressure curve for the intensifier is shown in Fig.2.
For evacuating the high pressure side the internal POV is used. This valve is opened by directing the supplied pressure to the T-port and connecting the P-port to tank. This allows the oil from the high pressure side to flow directly back to tank.
Click Here to read how reciprocating style hydraulic pressure intensifiers are used in high flow applications In some applications it is necessary to shut off the pump either to preserve energy to prevent heat build up or because the application is moved (e.g. pallets for machine tools). In these situations, it is advisable to insert a leak proof pilot operated check valve after the intensifier, as the integrated check valves in the intensifiers are not designed to be leak proof in these situations. See figure 5 below.
General Data: Material: Cast Iron and steel (also available in stainless steel) Surface coating: Chromit blue finish Fluids: Recognized hydraulic fluids and water glycol (water and other fluids are possible) Filtration: 10μ nominal, maximum 19/16 according to ISO 4406 Hydraulic reciprocating pressure intensifiers are compact and suitable for most applications where pressure intensification is required, as:
The table below lists the various models and their capabilities. For more detailed information, please consult the catalog or contact IC-Fluid Power.
|Intensifier Model||Predominant Feature||Mounting||Min. Inlet Flow||Max. Inlet flow||Min. Inlet Pressure||Max. Supply Pressure||Max. Output pressure||Weight|
|(GPM / LPM)||(GPM / LPM)||(psi / bar)||(psi / bar)||(psi / bar)||(lbs / KG)|
|MP-S||Most compact||In-Line||0.5 / 2||2.0 / 8||218 / 15||3,000 / 200||11,600 / 800||1.54 / 0.7|
|MP-T||All-Purpose, Most Common||In-Line||0.5 / 2||4.0 / 15||218 / 15||3,000 / 200||11,600 / 800||2.86 / 1.3|
|MP-T-XP||Small Power Packs||In-Line||0.5 / 2||4.0 / 15||218 / 15||3,000 / 200||11,600 / 800||2.86 / 1.3|
|MP-C||Stacking System||Cetop / NG6||0.5 / 2||4.0 / 15||218 / 15||3,000 / 200||7,250 / 500||5.94 / 2.7|
|MP-CT||Stacking System with Separate Pressure Out||Cetop / NG6||0.5 / 2||4.0 / 15||218 / 15||3,000 / 200||11,600 / 800||5.28 / 2.4|
|MP-F||Flange-Mount||Flange||0.5 / 2||4.0 / 15||218 / 15||3,000 / 200||10,150 / 700||3.08 / 1.4|
|MP-M||Medium Pressure and Medium-High Flow Rate||In-Line||1.9 / 7||9.3 / 35||218 / 15||3,000 / 200||11,600 / 800||7.7 / 3.5|
|MP-L||Highest Flow Rate||In-Line||15 / 4||21.2 / 80||218 / 15||3,000 / 200||11,600 / 800||19.8 / 9|
|MP-2000||Medium-High Pressure & Medium Flow Rate||In-Line||0.5 / 2||3.4 / 13||218 / 15||3,000 / 200||43,500 / 3,000||5.94 / 2.7|
|MP-2000-XP||Small Power Packs||In-Line||0.5 / 2||3.4 / 13||218 / 15||3,000 / 200||37,700 / 2,600||5.94 / 2.7|
|MPL-1400||High Flow & High Pressure||In-Line||4 / 15||13.2 / 50||218 / 15||3,000 / 200||20,300 / 1,400||19.8 / 9|
|MPL-2000||Second-to-Highest Pressure||In-Line||4 / 15||7.9 / 30||218 / 15||3,000 / 200||40,600 / 2,800||19.8 / 9|
|MPL-4000||Highest Pressure||In-Line||4 / 15||7.9 / 30||218 / 15||3,000 / 200||58,000 / 4,000||19.8 / 9|
Check out these videos on how intensifiers work:
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