Máy nén khí không dầu kobelco

○22～55kW Class ○Discharge air volume 2.05～7.7 m3/min

	The standard for the two-stage dry air compressor that generates highly pressurized air efficiently.

	Two-stage compressor is equiped for energy saving, reducing life-cycle cost and improving reliability. It can achieve 9～34% higher efficiency compared with single-stage oil-free screw compressor.
Inverter Cooling Fan （FE200～790）
	In the Emeraude-FE series, the cooling fan is also controlled by the inverter to further save energy.
Low noise
	In the Emeraude-FE series, the cooling fan is also controlled by the inverter to further save energy.
	Efficient energy saving with “Energy-Saving Logic” which minimize discharge pressure fluctuation
	Energy-Saving Logic with optimum capacity controls and superb control efficiency is a standard feature.
Improvement on durability for ambient
	Reviewing the total cooling system including design of coolers and cooling fan with safety margin, the compressor can operate even under ambient temperature of 45¡C.
Improved maintainability
	■Extended overhaul schedules Recommended overhaul schedule of Air End (for both 1st and 2nd stage) was extended to 6 years. As for water cooled machine, maintainability of coolers also improved with easy cleaning construction. ■High-performance intake filter A two-stage separation system （centrifugal separation and filtering separation with high dust collection efficiency） is adopted as a counter measure against dusty environments.
High performance screw unit
	A completely new design of the two-stage compressor unit and a reduction in package internal pressure losses resulted in an energy saving by 8% over existing models.Furthermore, a plate-fin, the first in the industry, was incorporated for the water-cooled, inter cooler and after cooler, reducing the air pressure loss to 1/5.
Ultimate clean air
	The oil-free design introduces absolutely no oil to the rotor chamber in the process. Stainless steel shaft-seal rings are used to prevent the generation of carbon dust, and KobelcoÕs patented twin atmospheric shaft vents prevent lubricating oil from contaminating the compression chamber even during extended periods of unloaded operations.
New type electronic monitor with liquid crystal display
	Alternate operation function of two units-Graph display of operating history, weekly timer, daily report management, maintenance information, and operation status. New Type Electronic Monitor
Totally enclosed fan-cooled motors are adopted to increase motor durability.
	Totally enclosed fan-cooled (TEFC) motor with enough capacity is selected to reduce the motor coil temperature and motor bearing temperature,leading significant improvement of reliability. Motor coil thermal detector is equipped for safety aspect.
Protection features
	Various improved protection for Electric parts. ●Momentary interruption protection: Within 0.5 sec. The compressor unit does not stop even when an momentary power failure (momentary power interruption, momentary power drop, temporary blackout) occurs, as long as the interruption time interval is less than the set value. The compressor unit is stopped when the power interruption duration exceeds the set value. ●Built-in 12,000-V lightning surge killer and noise filter. ●Automatic reset from power failure: 0.5 to 20 sec. Example: Setting for recovery after power interruption: 5 sec.; power recovery standby time: 15 sec.
Using new type of refrigerant
	R407C of no ozone destruction coefficient is used for all dryers.
Using new intake valves
	To prevent oil contamination, air pressure is used for capacity control, instead of oil pressure.
Noise insulation material that is easily sorted for disposal
	Materials are easily sorted for disposal, when disposing of the compressor unit (treated as industrial waste).
Reduction of pulse noise
	A perforated panel silencer is adopted to reduce high-frequency noise (more then 1KHz,) and unconfortable noise.
Exhaust cleaner that requires no oil mist breather piping
	Conventional countermeasure for oil mist is discharging the oil mist outside of package by using oil mist breather piping, which may cause the environmental problem. To avoid pollution,it was necessary to install filter on the end of piping or corona separation-type mist collector. Newly developed Exhaust Cleaner utilizes super fine filter which can be installed inside the compressor package, and no more breather piping is required. This Exhaust Cleaner has its self oil separation and recovery function. This can prevent differential pressure increase and can realize long term maintenance interval.

○37～55kW Class ○Discharge air volume 5.4～43.6 m3/min

	Ultimate high efficiency and energy saving thanks to Inverter equipped Two-stage Oil-free screw

	No matter what the load condition, Kobelco inverter control achieves ideal energy savings without unnecessary motor rotation. Instantly responding to any changes in demand pressure, pressure fluctuation could be minimized within ±0.01 MPa, thus supplying the required air volume with precisely controlled operating energy.
Equipped with the worldÕs first IPM motor
	IPM motor achieves higher efficiency than either general-purpose induction motors or high-efficiency induction motors. Specifically designed inverter couple with IPM motor can make a power-saving effect that no-conventional inverter can make.
Wide range Control
	Focus of energy savings from “suppression” to “effective use” KobelcoÕs wide range control provides maximum air volume at your required pressure.Remarkable expansion has been achieved in range control and low-pressure operation range. Realizing the biggest air volume under low-pressure operation has met energy-saving needs and provided abundant merit for users.
Line pressure control
	The compressor can be controlled by detecting the pressure from the air line. ●Maintain a necessary pressure in the line ●The best energy saving operation is possible with an optimized discharging pressure ●Keep track of the pressure losses (losses in electric power consumption)
New type electronic monitor with liquid crystal display
	Alternate operation function of two units-Graph display of operating history, weekly timer, daily report management, maintenance information, and operation status. New Type Electronic Monitor
Built-in Higher harmonic reactor as standard
	It reduces harmonics generated by the inverter. * Complies with harmonic suppression guidelines by the Japan Electrical ManufacturerÕs Association (JEMA)
Soft start by KOBELCO inverter
	It reduces peak current when starting-up, thus ensuring smooth start-up and reducing power supply equipment cost.
Stable operations under various environments
○45～370kW Class ○Discharge air volume 6.8～69.1 m3/min Best-in-class performance with full-range line-up. New high-efficiency screw design enhances efficiency. Completely resigned 2-stage compressor air end and reduced pressure loss within the package result in an 8% increase in efficiency. The water-cooled intercooler and aftercooler also feature the industry,s first plate-fin design, thus reducing air pressure loss to one-fifth. Efficient energy saving with “Energy-Saving Logic” which minimize discharge pressure fluctuation Energy-Saving Logic with optimum capacity controls and superb control efficiency is a standard feature. High performance screw unit A completely new design of the two-stage compressor unit and a reduction in package internal pressure losses resulted in an energy saving by 8% over existing models.Furthermore, a plate-fin, the first in the industry, was incorporated for the water-cooled, inter cooler and after cooler, reducing the air pressure loss to 1/5. Ultimate clean air The oil-free design introduces absolutely no oil to the rotor chamber in the process. Stainless steel shaft-seal rings are used to prevent the generation of carbon dust, and KobelcoÕs patented twin atmospheric shaft vents prevent lubricating oil from contaminating the compression chamber even during extended periods of unloaded operations. Improved maintainability ■Extended overhaul schedules ● Recommended overhaul schedule for the 2nd stage was extended to every 6 years, whereas the 1st stage was extended to every 9 years (for an annual operation of 8,000 hours). ● Annual maintenance involves changing the oil, oil filter element and exhaust cleaner only. ■Frequency of capacity control operations ● The life is extended to six times that of conventional models, with reliability and maintainability also improved. Capability with 1.03 MPa specifications All models are equipped with a compressor main unit that can operate with a pressure of up to 1.03 MPa. Improvement on durability for ambient Reviewing the total cooling system including design of coolers and cooling fan with savety margin,the compressor can operate even under ambient temperture of 45℃. New type electronic monitor with liquid crystal display Alternate operation function of two units-Graph display of operating history, weekly timer, daily report management, maintenance information, and operation status. New Type Electronic Monitor Totally enclosed fan-cooled motors are adopted to increase motor durability. Totally enclosed fan-cooled (TEFC) motor with enough capacity is selected to reduce the motor coil temperature and motor bearing temperature,leading significant improvement of reliability. Motor coil thermal detector is equipped for safety aspect. Protection features Various improved protection for Electric parts. ●Momentary interruption protection: Within 0.5 sec. The compressor unit does not stop even when an momentary power failure (momentary power interruption, momentary power drop, temporary blackout) occurs, as long as the interruption time interval is less than the set value. The compressor unit is stopped when the power interruption duration exceeds the set value. ●Built-in 12,000-V lightning surge killer and noise filter. ●Automatic reset from power failure: 0.5 to 20 sec. Example: Setting for recovery after power interruption: 5 sec.; power recovery standby time: 15 sec. Noise Reduction Pulse noise is reduced by the perforated plate silencer, whereas the blade noise from the exhaust fan is reduced by optimum louver, thereby realizing top of its class low noise levels. Exhaust cleaner that requires no oil mist breather piping Conventional countermeasure for oil mist is discharging the oil mist outside of package by using oil mist breather piping, which may cause the environmental problem. To avoid pollution,it was necessary to install filter on the end of piping or corona separation-type mist collector. Newly developed Exhaust Cleaner utilizes super fine filter which can be installed inside the compressor package, and no more breather piping is required. This Exhaust Cleaner has its self oil separation and recovery function. This can prevent differential pressure increase and can realize long term maintenance interval. ○65～250kW Class ○Discharge air volume 5.4～43.6 m3/min(0.69MPa) Ultimate high efficiency and energy saving thanks to Inverter equipped Two-stage Oil-free screw No matter what the load condition, Kobelco inverter control achieves ideal energy savings without unnecessary motor rotation. Instantly responding to any changes in demand pressure, pressure fluctuation could be minimized within ±0.01 MPa, thus supplying the required air volume with precisely controlled operating energy. Equipped with the worldÕs first IPM motor IPM motor achieves higher efficiency than either general-purpose induction motors or high-efficiency induction motors. Specifically designed inverter couple with IPM motor can make a power-saving effect that no-conventional inverter can make. Capability for high pressure applications Air cooled unit (0.88 MPa), water cooled unit (0.93 MPa) Line pressure control (Optional) The compressor can be controlled by detecting the pressure from the air line. ●Maintain a necessary pressure in the line ●The best energy saving operation is possible with an optimized discharging pressure ●Keep track of the pressure losses (losses in electric power consumption) High performance screw unit A completely new design of the two-stage compressor unit and a reduction in package internal pressure losses resulted in an energy saving by 8% over existing models.Furthermore, a plate-fin, the first in the industry, was incorporated for the water-cooled, inter cooler and after cooler, reducing the air pressure loss to 1/5. Ultimate clean air The oil-free design introduces absolutely no oil to the rotor chamber in the process. Stainless steel shaft-seal rings are used to prevent the generation of carbon dust, and KobelcoÕs patented twin atmospheric shaft vents prevent lubricating oil from contaminating the compression chamber even during extended periods of unloaded operations. Improved maintainability ■Extended overhaul schedules ● Recommended overhaul schedule for the 2nd stage was extended to every 6 years, whereas the 1st stage was extended to every 9 years (for an annual operation of 8,000 hours). ● Annual maintenance involves changing the oil, oil filter element and exhaust cleaner only. ■Frequency of capacity control operations ● The life is extended to six times that of conventional models, with reliability and maintainability also improved. Capability with 1.03 MPa specifications All models are equipped with a compressor main unit that can operate with a pressure of up to 1.03 MPa. Improvement on durability for ambient Reviewing the total cooling system including design of coolers and cooling fan with savety margin,the compressor can operate even under ambient temperture of 45℃. New type electronic monitor with liquid crystal display Alternate operation function of two units-Graph display of operating history, weekly timer, daily report management, maintenance information, and operation status. New Type Electronic Monitor Built-in Higher harmonic reactor as standard It reduces harmonics generated by the inverter. * Complies with harmonic suppression guidelines by the Japan Electrical ManufacturerÕs Association (JEMA) Soft start by KOBELCO inverter It reduces peak current when starting-up, thus ensuring smooth start-up and reducing power supply equipment cost. Stable operations under various environments Totally enclosed fan-cooled motors are adopted to increase motor durability. Totally enclosed fan-cooled (TEFC) motor with enough capacity is selected to reduce the motor coil temperature and motor bearing temperature,leading significant improvement of reliability. Motor coil thermal detector is equipped for safety aspect. Protection features Various improved protection for Electric parts. ●Momentary interruption protection: Within 0.5 sec. The compressor unit does not stop even when an momentary power failure (momentary power interruption, momentary power drop, temporary blackout) occurs, as long as the interruption time interval is less than the set value. The compressor unit is stopped when the power interruption duration exceeds the set value. ●Built-in 12,000-V lightning surge killer and noise filter. ●Automatic reset from power failure: 0.5 to 20 sec. Example: Setting for recovery after power interruption: 5 sec.; power recovery standby time: 15 sec. Noise Reduction Pulse noise is reduced by the perforated plate silencer, whereas the blade noise from the exhaust fan is reduced by optimum louver, thereby realizing top of its class low noise levels. Exhaust cleaner that requires no oil mist breather piping Conventional countermeasure for oil mist is discharging the oil mist outside of package by using oil mist breather piping, which may cause the environmental problem. To avoid pollution,it was necessary to install filter on the end of piping or corona separation-type mist collector. Newly developed Exhaust Cleaner utilizes super fine filter which can be installed inside the compressor package, and no more breather piping is required. This Exhaust Cleaner has its self oil separation and recovery function. This can prevent differential pressure increase and can realize long term maintenance interval. ○270～640kW Class ○Discharge air volume 48.0～121.7 m3/min Turbo Compressor with dramatic energy-saving and maintainability expand the range of achievement. High efficiency Thanks to the most advanced aerodynamics technology by KOBELCO, new titanium impeller has been developed. lt achieves 5% better efficiency than conventional model and equivalent to the 3 stage machines by 2 stage. ■Impeller ITCS mounted to increase the power and energy savings The computer manages optimum load/un-load operation,and self-diagnostic system to avoid sudden failure. And also this cam manage the maintenance interval to increase the maintainability. You can operate the machine with just pressing the Start/Stop button with its sophisticated user-friendly interface. 5% better efficiency than conventional model,thanks to precise machined Impellers and low pressure loss coolers. New Type Electronic Monitor  High reliability Simple 2-stage construction allows fewer parts (less 1 cooler and 1 pinion from 3-stage machine). Since there is no auxiliary motor except Main motor, less possibility of stop from motor trouble. In addition,rigid one-piece cast iron cooler with gear box decrease its vibration. Easy maintenance ■ Superior capacity control valve No instrument air is required. ■ Automatic drain valve Highly reliable electric type drain valve is equipped as a standard. ■ Built in type air coolers Simple one-pass type plate fin coolers are equipped. Water flows in tube side for easy cleaning. Substantial options ■ Totally enclosed noise cover (Noise level about 75 dBA) Low noise specification without cover (about 85 dBA) can also be available ■ ED series energy-saving dryer Rotating absorbent dehumidifier that utilizes exhaust heat ●Energy saving-type that requires no electric heat, steam or purged air to regenerate the absorbent. ●Complete unit-type that saves space. ■ Stainless steel cooler ●SUS304 tube and SUS tube sheet. ●Cupronickel or other materials also available (option) ■ Exhaust cleaner for oil mist High performance oil mist cleaner promise pure clean oil free air. Recovered oil will be returned to gear box without any pollusion. ■ Electric power limiter In case that there is no need for flow increase in winter season (character of turbo compressor), energy consumption and start-up current can be saved with continued suction valve control.