Japan, Nachi
Nachi POWER Fit
Made in: Japan
Manufacturer: NACHI
Model: POWER Fit
Features
A hydraulic power unit that offers optimal compactness, high pressure and high flow for drive sources for stamping presses
- Energy-saving effect improvement
With the AC servo motor, the unit rotates the pump only to the extent necessary and optimally controls pressure and flow in accordance with the movement of the machine.
The unit has achieved 80% energy saving as compared with NACHI-Fujikoshi’s standard hydraulic units - High pressure and high flow
Type Pressure Flow rate Type PVS 25MPa 90L/min Type PZS 28MPa 140L/min - compact
Installation space is reduced 60% as compared with NACHI-Fujikoshi’s standard hydraulic units
(Oil tank capacity 60L,80L) - Multi-stage pressure and flow control is simple
It is possible to switch to 16 patterns using the external signal - Low Nois
The operating sound when maintaining the pressure at 21MPa is 60dB(A). - Low oil temperature rise
A low heat-generating design that keeps the rise of oil temperature to room temperature + 10°C
(Oil tank 60L 21MPa while maintaining pressure)
Perfomance
Briefing (for when applying to stamping presses)
- It can be used to replace a conventional hydraulic unit.
- The operating direction of the cylinder is switched using an electromagnetic switching valve.
- Cylinder velocity (flow) and load (pressure) can be controlled at will using the controller.
(Valves for velocity control and pressure control are not needed.) - The controller automatically switches between flow control and pressure control in accordance with the loading state.
- The unit can output an external signal (open collector signal) in tandem with flow and pressure commands. It can switch the electromagnetic switching valve, etc. in tandem with the commands.
Press operation pattern
Specification
Primary specification
| Type | NPQ-60*-55PV 45N3A2-6161A | NPQ-80*-75PZ 70N4A2-6161A | NPQ-100-11KPZ 70N4A2-6161A | NPQ-120-15KPZ 70N4A2-6161A | |
|---|---|---|---|---|---|
| Motor capacity [kW] | 5.5 | 7.5 | 11.0 | 15.0 | |
| Pump | PVS-2B-45 | PZS-3B-70 | |||
| Pump Max Capacity [cm3/rev] | 45 | 70 | |||
| Pump Adjust Range High capacity [cm3/rev] | 20 to 45 (*1) (factory-configured:45) | 5 to 70 (*1) (factory-configured:70) | |||
| Pump Adjust Range Small capacity [cm3/rev] | 3 to 24 (*1) (factory-configured:12) | 5 to 40 (*1) (factory-configured:17) | |||
| Maximum RPM [min-1] | 2000 | ||||
| Max.flow [L/min] | 90 | 140 | |||
| Rated pressure [MPa] | 21 | ||||
| Max, working pressure [MPa] | 25 | 28 | |||
| Tank capacity [Lit.] | 60 | 80 | 100 | 120 | |
| Power-supply voltage | Main circuit | 3Ø AC200 to 220V, 50/60Hz | |||
| Control circuit | 1Ø AC200 to 220V, 50/60Hz | ||||
| power supply capacity [KVA] | 8.4 | 12.6 | 15.7 | 21.4 | |
| Using ambient temperature/humidity | 10 to 35°C / 20 to 20%RH (No condensation) | ||||
| Allowable temperature range of the hydraulic oil | 10 to 60°C | ||||
| Recommended hydraulic oils | Standard mineral-based hydraulic fluid (equivalent to ISO VG46) | ||||
(*1)Pump large capacity adjustment range will vary depending on set of small capacity.
For more information, please refer to the instruction manual.
Explanation of model No
