- The optimal energy efficiency of the fan motor is also realized by the inverter control.
- The permanent magnet IPM motor improves the efficiency by 5%.
- Ideal water lubrication system.The water lubrication is simple and environmentally friendly.
- The newly adopted IT touch panel enables smooth operation and control.
| Model | i-14075A4-R | |||
| Items | Unit | |||
| Power frequency | Hz | 50 / 60 | ||
| Power supply voltage | 50/60/Hz ,V | 200/220/380/400/415/440 | ||
| Free air delivery (0.7Mpa) | m³/ min | 13.0 ( 14.7) * | ||
| Delivered air pressure | MPa | 0.7 | ||
| Pressure adjustment range | MPa | 0.39 to 0.93 | ||
| Pressure control method | Constant pressure control by inverter | |||
| Intake air pressure & temperature | Atmospheric pressure (2 to 40°C) | |||
| Main motor power | kW | 75 | ||
| Motor type | Totally enclosed fan cooled IPM motor | |||
| Starter | Inverter | |||
| Drive system |
Direct coupled motor |
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| Cooling system | Air-cooling | |||
| Fan motor power | kW | 7.5 (inverter control) | ||
| Lubricant water amount |
 |
65 | ||
| Dryer | Air dew point at outlet | °C | 10 (under application of pressure) | |
| Refrigerant | R·410A | |||
| Discharge pipe diameter | R | 2 | ||
| Dimension,L×W×H (body)[without dryer] | mm | 2005 x 1190 x 1800 | ||
| Total mass (dry state) | kg | 1900 | ||
| Noise level [OP1.5m] | dB·A | 63.5 to 67 | ||
| Structural comparison of the permanent magnet motor and the induction motor | |
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By installing the latest IPM motor (internal permanent magnet motor) which contains a permanent magnet in the latest rotor, the compressor is made smaller and the rotation is made faster. If compared with conventional induction motors, the IPM motor does not cause electricity loss or slipping of the rotor, thus drastically enhances the motor efficiency. Combined with Mitsui Seiki's advanced inverter, the total efficiency also overrides that of single induction motors. Heat generation is reduced, leading to further energy saving. Also, the motor direct-coupled driving system eliminates the loss of power, improves the engagement and the machining accuracy of the compressor's main parts, and achieves the efficiency which is much higher than conventional machines. |
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