1、 HPMTM hybrid permanent magnet motor

1. The stator coil and permanent magnet rotor of a hybrid permanent magnet motor generate strong electromagnetic force, which drives the motor shaft to rotate at different speeds. The motor shaft directly drives the directly connected main male rotor without any efficiency loss in the intermediate transmission part.

2. Eliminating the use of worn parts and motor bearings in the motor, without gears/bearings/shaft seals, and reducing the consumption of vulnerable parts.

The volume is one-third of that of a regular motor, and it can be maintained on-site by replacing one of the winding coils. Compared to traditional motors that require replacing the entire winding, this will save a lot of costs.

3. Soft start, with a starting current less than 1 times the rated current, can start/stop infinitely, saving 30% of energy waste caused by unloading in traditional air compressors and maintaining a continuous operating efficiency of up to 96%.

2、 Precise winding

1. The winding of the Nirvana oil-free air compressor HPMTM hybrid permanent magnet motor is directly wound on a convex structure, which is simple, reliable, and eliminates the problems of low efficiency and concentrated motor heating in ordinary induction motors. The concentrated heating of the motor often leads to insulation layer damage and other faults.

2. Repairing traditional air compressors usually results in several days or weeks of downtime and requires a certain rental fee. Re winding the coil or replacing the bearings will require a significant amount of manpower and material resources. The composition of Nirvana TM stator is not only fast to replace, but also lower in cost compared to replacing motor windings.

3. The revolutionary hybrid permanent magnet motor has no bearings and no worn parts!

3、 NirvanaTM three tube parallel cooler

1. Distribute compressed air into three independent pipelines to reduce pressure loss and balance heat load.

2. Eliminating thermal cycling and eliminating the need for a pre cooler greatly reduces the exhaust temperature of the second stage compression chamber to approximately 30 ℉ (17 ℃).

3. The air-cooled Nirvana oil-free screw air compressor also ensures the stability of CTD by adjusting the flow rate of the variable frequency centrifugal fan, while achieving energy-saving and noise reduction effects.

4. Ensure cooling flow to adapt to changes in ambient temperature and load, eliminating the possibility of compressed air bringing liquid water into the second stage rotor.

4、 Unique energy-saving efficiency - From the moment you invest and operate, Nirvana will save you on the lifetime operating costs of air compressors

Ingersoll Rand's unique variable frequency drive system ensures unparalleled efficiency of the air compressor under a range of operating conditions. For traditional air compressors, starting the motor can cause huge energy consumption, and the starting current is usually as high as 8 times the normal operating current at full load. NirvanaTM's hybrid permanent magnet motor ensures that the starting current is less than 100% of the load current, eliminating the impact on the power grid during air compressor start-up and saving energy consumption.

5、 Durable compression module

1. Efficient twin-screw two-stage compression module, cast iron casing, synchronous gear drive.

2. In the past, oil-free screw compressors did not have balance pistons to counteract axial thrust, but the balance pistons were prone to getting stuck due to dust and other pollutants. To eliminate this hidden danger, Ingersoll Rand oil-free screw compressors added a pair of thrust bearings instead of balance pistons to bear axial force and improve the reliability of the main engine operation.

3. The rotor with super coating ensures stable and long-lasting operating performance.

4. The second stage rotor is designed with stainless steel, suitable for high-temperature operating environments, greatly increasing the lifespan of the rotor.

6、 Superior reliability of cooling units

1. The operating environment of the unit is designed according to the high temperature and high humidity working environment in Asia.

2. The air-cooled unit can operate continuously and normally in a high temperature environment of 46 ℃, and the maximum inlet water temperature for the water-cooled unit can reach 46 ℃.

3. The CTD of the cooling device can reach 8 ℃ -10 ℃.

4. All of Sierra? Can operate in the harshest environmental temperatures to avoid high temperature shutdowns.

7、 UltraCoatTM super coating

1. Both the rotor and the machine base surface need to be treated with Ingersoll Rand super coating, which undergoes mechanical and chemical processing to ensure a very thin thickness of the coating and firm adhesion to the rotor and machine base surfaces.

2. After shot peening treatment on the surface of the rotor to increase roughness, organic high-temperature resin is mechanically embedded in molybdenum disulfide MoS2 molecular resin on the rough surface, which is durable, oxygen resistant, and not fragile.

3. Compared with coatings of other properties, UltraCoat? Super coating has a longer lifespan and can save 10% of the host's energy consumption.

4. Using stainless steel and aluminum alloy pipes to connect the intercooler and stainless steel secondary rotor, the condensed water generated during the intercooler process will not corrode these materials, and can prevent the generation and detachment of rust, extending the service life of the coating and rotor.

8、 Outstanding sealing technology

1. Unique three seal system

I. SS air seal - prevents air from entering the oil circuit (bearing seat/gear)

II. Maze seal - prevents oil from entering the host

III. Oil discharge seal - If there is any leakage in the above seal, the oil discharge seal will release oil into the atmosphere

2. There are 1-2 atmospheric isolation rings in each group of airtight sealing rings. Even if the airtight sealing ring fails, oil and gas can only escape from the air through the holes and will not enter the compression chamber, ensuring the discharge of 100% oil-free compressed air.

NirvanaTM's unparalleled energy-saving effect and reliability

Nirvana TM does not require unloading, instead, it simply reduces the screw speed to meet the changes in gas volume. Compared with the unloading mode used by other air compressors, Nirvana TM adopts a simple shutdown method. The motor can start/stop infinitely per hour without shortening its lifespan, so the energy-saving effect is quite significant. In addition to Ingersoll Rand's unique super coating and hybrid permanent magnet motor, Nirvana oil-free screw air compressor is the most reliable oil-free screw air compressor to date, and it saves at least 30% energy compared to traditional oil-free screw air compressors.