To promote the development of China industry and innovation of general machine, confirmed by China Government,(TEL:0086-21-56550258) air compressor sales and service Platform is established. It aims at supplying the most advanced and the most competitive air compressors, to push forward integration process of global air compressors. Its service range is piston air compressor, screw air compressor, sliding-vane air compressor, centrifugal air compressor, medium pressure air compressor, high pressure air compressor, technical compressor, natural gas compressor, military compressor, oil free air compressor, spare parts for air compressor, air compressor oil, air receiver, dryer, filter, etc.
air compressor >>Kobelco air compressor>>Kobelco air compressor
Kobelco's Development Philosophy
New product that retains customers' trust. It can be created from revolutionary spirit and unsparing injection of supreme level of updated technology and with consideration given to the world's ecology. We pursue true service with heartfelt sincerity.
Great trust backed up by total reassurance.
New revolutionary concept in products, sales, and services.
Further development of distinguished technology
Least impact on the environment
With sincerity
With serious attention to our customers' needs, with quick responsive serviceWith Kobelco's corporate message "Heart to Heart" in manufacturing products
Kobelco screw compressors are produced at ISO9001 and ISO14001 certified
Discharge air volume 2.3-12.3m³/min 15-75kW Class
The AG and SG series boasts the same basic functions as the top-of-the-line VX and VS series. Kobelion's standard screw compressor series changes the concept of simplicity.
The AG series pursues efficiency and energy saving, supported by new type electronic monitor.
The SG series provides information needed for operation and combines energy-saving control functions and simple operation.
The use of a new type rotor design, the two-box unit design, new dust filter structure, and optimization of the sound absorbing material suppress operating noise,not only on the front side of the unit,but in any directions.New unit design also contributes to gentler operating sound.Moreover, the AG/SG900-1230 (Air-cooled models) employs an invertercooling fan in an attempt to further noise reduction.
New design of the dust filter structure enlarges the intake surface area.
The reduction of the opening area and enlargement of the intake surface area enable the intake of more clean air and significantly reduce noise coming from the sides of the unit. (Air cooled models only of AG/SG370 900 1230)
The world's highest level of clean air is supplied.
The use of a large oil separator element reduces oil mist in discharge air to 0.002cc/m3 or less. The resulting reduction in consumption of lubricating oil cuts the annual running cost.
New type refrigerant
Kobelion built-in dryers are all furnished with new type refrigerant (R407C) with zero ozone-destruction-coefficient.
Improved dust resistance
Intake filters for cooling air and the air-intake port to the airend have been enlarged. Enhanced resistance to dusty environments has also been provided by introducing a two-stage centrifugal dust-removal process.
Automatic oil reclaim system of mechanical seal
Waste oil from the mechanical seal does not need to be discharged outside.
Increased performance, efficiency, and reliability
Increased durability against high ambient temperature
The two-box design inside the package allows for efficient cooling of the unit. Larger coolers and use of a double-sirocco fan enables operation without unexpected shutdown even at an ambient temperature as high as 45ºC.
* Long-time continuous operation at an ambient temperature of 40ºC or higher may shorten the life of lubricating oil, electrical components, O-rings, etc. compared with normal operation.
Inverter cooling fan (AG/SG900-1230) The use of an inverter-controlled cooling fan reduces power consumption of the fan under low loading operation. -A waste of electricity consumption is minimized by controlling fan rotations with discharge air temperature. -Durability is improved by stabilizing temperature inside the compressor unit. -The fan rotation speed is forcefully raised in a high temperature environment to increase cooling capacity.
Motor protection function mounted
A totally-enclosed motor is used in all AG and SG models. The motor is protected by the standard equipment of the motor coil temperature detection mechanism.
Surge killer against 12,000-V lightning and Noise filter are built in.(AG)
Low maintenance
Long-Life Poly-V Belt
Replacement interval is every 12,000 hours. Tension adjustment is not needed during that time.
Equipped with Water-Removal function (Patent pending)
Daily drainage of condensed moisture is not required.
New type controller (SG)
The controller provides information needed for operation and maintenance to make operation even simpler.Furthermore, energy-saving functions are enhanced by three U-, EC-, and EL-mode operation controls . (P- and U-mode operation controls for SG230-SG610.)
Other displayed descriptions -Discharge temperature -operation mode -remaining time until grease up (only displayed for SG900/1230) -Setting for continuous running when dryer has trouble (only displayed for built-in dryer compressors) -Setting for pre-operation dryer (only displayed for built-in dryer compressors)
New type electronic monitor included as standard (AG)
New type electronic monitor
Two-unit alternate operation and link operation with VX and VS extends the range of applications.
Discharge air volume
3.9-12.4m³/min(0.69MPa) 4.8-15.1m³/min (0.39MPa) 22-75kW Class
Other compressor with inverter ( Kobelion-VSMULTI / Emeraude-VF / Emeraude-VE / Emeraude-ALE-V )
Highest-level energy-saving line-up at low discharge pressure range [Discharge pressure 0.69-0.39 MPa] Remarkable expansion of Wide Range Control and low-pressure operation range. The biggest air volume under low-pressure operation to satisfy your energy-saving demands with abundant merits.
Usefulness pursued at general pressure range [Discharge pressure 0.69-0.59 MPa] The biggest air volume under discharge pressure range of conventional inverter compressor with Wide-Range Control.
Wide Range Control Focus of Energy Saving shifts from "Suppression" to "Effective use"
By direct couple IPM high-speed motor to the compressor.
A Kobelion unit can replace a conventional unit which has larger motor output.
Higher efficiency pursued to maximize Wide-Range Control advantages.
Energy-saving performance under low load condition is uncompromisingly pursued. Expansion of the inverter control range to 10-125%, from 20-100% of a conventional unit, accomplishes optimum energy-saving at any operating conditions.
New type electronic monitor included as standard
-Operation record, weekly timer, daily report management, maintenance information, and operation condition displayed as graphs
Two-unit alternate operation without a group control panel
Two-unit alternate operation of Kobelion models can be done by simple wiring. Unlike conventional units, no specifically designed panel for two-unit alternate operation is needed. First-Started unit or Next-Started unit can be selected from the monitor.
New type electronic monitor
Built-in overhang direct-coupling construction (IPM high-speed motor direct-coupling structure)
Structure to minimize energy loss Screw unit directly coupled with high-speed permanent magnet motor
Kobelion is designed with special emphasis on noise reduction. For reduction of low noise, sound quality as well as operating noise level are improved by thorough review of all spots that might be source of noise.
Inverter fan (Air Cooling type only)
Cooling fan is inverter-controlled type in Kobelion. Energy loss of cooling fan in conventional units have been solved.
Wasteful energy consumption is minimized by the control of fan speed in proportion to the discharge air temperature. Also, durability is improved by stabilizing the temperature inside the compressor unit.
Cooling fan motor: inverter controlled (load change characteristics) VS410AD
Simple Structure with Minimum Number of Parts
-Structure of No motor bearing -Structure of No suction throttling valve -Structure of No mechanical seal
Low maintenance
-Recommended interval of overhaul:Every 6 years (on a 6,000-hr/year operation basis) -Dust filter (Air cooled models only) Surface area enlarged two times larger.
Complete protection of electric equipment
-Built-in DC reactor DC reactor for removing higher harmonic is built in the inverter panel. -Momentary interruption / power outage protection with automatic reset ... 0.1 to 20 sec -Surge killer against 12,000-V lightning and Noise filter are built in.
Environment Suitability
-New type refrigerant Kobelion built-in dryers are all furnished with new type refrigerant (R407C) with zero ozone-destruction-coefficient. -Improved efficiency of oil separator element
Oil separation efficiency improves to 0.002cc/m3 at 0.69 MPa from 0.005cc/m3 of a conventional unit.
-Equipped with Water-Removal function (Patent pending)
Discharge air volume
19.0-26.2m3/min (0.69-0.59MPa) 110-150kW Class
Other compressor with inverter ( Kobelion-VX/VS / Emeraude-VF / Emeraude-VE / Emeraude-ALE-V )
Wide-Range Control implemented for large compressors
Already known for its high efficiency and high performance, the Kobelion series now challenges energy loss reduction for more than 110kW. Never-before-possible wide-range control was implemented through the multi-unit solution, thus making operation easier and enhancing reliability.
Wide Range Control
Focus of Energy Saving shifts from "Suppression" to "Effective use"
-By direct couple IPM high-speed motor to the compressor. ¡¡
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-Wider capacity control range
Capacity control extended to a wider range of 5% to 106% Uncompromising challenge to improve energy saving performance even for low load operation Low load operation of less than 30% is changed over to a single-unit operation, thus saving energy. (About 4kW of energy is saved for a 10% load operation.)
- Introduction benefits
Kobelion-VS MULTI brings larger energy saving benefits than single-stage compressors or even two-stage compressors.
Latest monitor focusing on easy-to-use operation
Multi/single changeover operation
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Multi/single unit control allows Kobelion-VS MULTI to perform a backup operation just in case.
Failure tolerance is the same as when running two 75kW compressors
Even if one unit fails, the Kobelion continues running the other unit separately to secure 50% air quantity.
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Built-in overhang direct-coupling construction
Energy loss is minimized by eliminating mechanical loss at power transmission components such as belts and gears in a conventional compressors. Also, the built-in overhang direct-coupling construction and totally enclosed structure of IPM high-speed oil-proof motor eliminate mechanical seal and thus reduce mechanical loss.
Interior Permanent Magnet (IPM) high-speed motor
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Equipped with the world's first IPM high-speed motor that enables Wide-Range Control.
Rotor
Supreme performance pursued by redesigning basic structures of the rotors (the core component).
Environment Suitability
-Improved efficiency of oil separator element
Oil separation efficiency improves to 0.002cc/m3 at 0.69 MPa from 0.005cc/m3 of a conventional unit.
-Kobelion is designed with special emphasis on noise reduction. For reduction of low noise, sound quality as well as operating noise level are improved by thorough review of all spots that might be source of noise.
New type of rotor ?EBuilt-in overhang direct-coupling construction?E A motor cooling structure with oil cooling jacket is employed ?EChange of sound absorbing material.
-Equipped with Water-Removal function (Patent pending)
Self-dry function is featured as standard to remove moisture by microprocessor control, allowing frequent low loading operation.
Reduced installation space enhances layout flexibility
FE (Emeraude-FE) Discharge air volume 2.05-7.7m³/min(0.69MPa) 2.0-6.3m³/min(0.88MPa) 15-55kWClass VF (Emeraude-VF) Discharge air volume5.4-6.4m³/min 37kWClass
Other compressor with inverter ( Kobelion-VX/VS / Kobelion-VSMULTI / Emeraude-VE / Emeraude-ALE-V )
The advanced Emeraude-FE series pursues more severe efficiency. This series has achieved energy saving, reduction of running costs, and improvement of reliability.
Performance of this series has gone up 5 to 10% than that of previous models. This has been achieved by adopting a two-stage compressor with good Specific Power Consumption (kW/m3/min), improving the capability of the cooling system, and reducing the pressure loss of the internal piping.
Providing the ultimate in clean air
The oil-free design introduces absolutely no oil to the rotor chamber in process. Stainless steel shaft-seal rings are used to prevent the generation of carbon dust, and Kobelco's patented twin atmospheric shaft vents prevent lubricating oil from contaminating the compression chamber even during extended unload operation.
Two-stage compression design (standard equipment for all models)
A two-stage compressor is adopted to achieve energy saving, reduction of running costs, and improvement of reliability. The efficiency of this series has gone up 9~34% than that of single-stage oil-free compressors.
Low noise
The noise of exhaust hot air have been reduced by using inverter sirocco fan. At unload or low ambient temperature operation, the inverter sirocco fan operate at lower Rpm and reduced the noise level. The improved design suction duct also help to achieve lower suction noise.
Reduction in noise of Air-Cooled models Reduction of pulse noise A perforated panel silencer is adopted to reduce high-frequency noise of more than 1KHz, and reduce to approx. 15dB on average with less irritating noise.
Advanced "Energy-Saving Logic"* functions now standard *(patent pending)
Advanced "Energy-Saving Logic"* functions now standard *(patent pending)
Minimized Capacity control
-Pressure control range: the Emeraude series features the most efficient control system with a narrower pressure control range of 0.05MPa compared to the conventional pressure control range of 0.1MPa. -With the introduction of "Energy-Saving Logic," unload operation is forcibly performed at every 23seconds of capacity control cycle.By reducing the unload pressure,excessive load operation is eliminated. Through the combination of load-unload switching and timer control, power consumption has been reduced even below previous Kobelco models, producing an economical two-stage high-efficiency compressor, while also reducing running costs.
Inverter cooling fan
In the Emeraude-FE series, the cooling fan is also controlled by the inverter to further save energy.
-The Rpm of the inverter fan is proportional to ambient temperature and load ratio. So that power saving can be achieved with low ambient temperature and low load operation. -Temperature inside the compressor unit can be so stable that the durability is improved.
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
Improving on durability for ambient temperature.
A large cooling fan, fan exhaust cooling system, and the top horizontal position of the cooler are adopted.
-Cooling capability has been improved at 60% than the one of the previous models. -Possible to use & operate the compressor under ambient temperature of 45ºC.
Long-life design
Totally Enclosed Fan cooled moter is selected to reduce motor coil temperature and motor bearing temperature, and that leads to a significant improvement on reliability eventually. A measuring function of motor coil tempereture has been installed for standard equipment.
High-performance intake filter
A two-stage separation system Åicentrifugal separation and filtering separation with high dust collection efficiencyÅj is adopted as a counter measure against dusty environments.
Improved protection for electric parts
-Momentary interruption protection:Within 0.5 sec -Automatic reset from power failure : 0.5 to 20 sec -Built-in 12,000-V thunder surge killer and noise filter
Environmental Friendly
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.
*For basic performance, refer to pages on Emeraude FE for Emeraude VF.
Achieved better performance than conventional units by advanced technologies of Motor & Inverter
A state-of-the-art Interior Permanent Magnet (IPM) motor is adopted as the power source to drive the unit. In combination with its uniquely developed inverter, Kobelco prides itself on delivering a new energy-saving inverter compressor, which boasts the utmost in efficiency and reliability.
Equipped with the world¡¯s 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.
More stable features supporting Kobelco inverter
Built-in Higher harmonic reactor as standard
It reduces harmonics generated by the inverter.
* Complies with harmonic suppression guidelines by the Japan Electrical Manufacturer¡¯s Association (JEMA)
Stable operation under adverse condition
Soft Start by KOBELCO Inverter
It reduces peak current when starting-up, thus ensuring smooth start-up and reducing power supply equipment cost
Elaborate Control with Kobelco Inverter (Variable Speed Control)
Required air volume is produced for optimum operating pattern, thus minimizing energy loss.
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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 ¡À0.01 MPa, thus supplying the required air volume with precisely controlled operating energy.
Kobelco¡¯s 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.
ALE Discharge Pressure 6.8-48.0m³/min(0.69MPa) 5.4-43.6m³/min(0.93MPa) 45-290kWClass ALE V type Discharge Pressure 10.2-43.6m3/min 65-250kWClass
Other compressor with inverter ( Kobelion-VX/VS Kobelion-VSMULTI Emeraude-VF Emeraude-VE )
In Performance, in Efficiency Always First in its Class.
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.
Providing the ultimate in clean air
The oil-free design introduces absolutely no oil to the rotor chamber in process. Stainless steel shaft-seal rings are used to prevent the generation of carbon dust, and Kobelco's patented twin atmospheric shaft vents prevent lubricating oil from contaminating the compression chamber even during extended unload operation.
ALE unit for ultimate maintenance savings
Enhanced rigidity, lower vibration
Unified body construction
Highest level of seal quality
Oil system uses both G-threads and O-ring joints
Water-in-tube design simplifies cooler cleaning
Water-cooled gas coolers feature the industry's first plate-fin water-in-tube structure.
Improved endurance
Totally enclosed fan-cooled motors are installed as standard equipment.
More reliable drainage
Forced drainage is accomplished via timer and solenoid valve.
Enhanced bearing durability
Improved lubricant filters lengthen bearing life.
Complete electrical protection
Reserve power circuits are provided with their own dedicated breaker, and control circuitry is equipped with circuit protectors.
No need for oil mist plumbing
An exhaust cleaner is featured as standard equipment.
Extended maintenance cycle
-Recommended general overhaul schedules
1st-stage:Every 9 years 2nd-stage:Every 6 years
-Capacity control Maintenance :Every 3 years -Annual maintenance:Changes of oil and oil filters only
Water-in-tube cooler design facilitates elimination of scaling Cooler cleaning schedules can be extendedeven longer
with the addition of an optional water conditioning unit Example of maintenance costs (Based on overhaul costs of 100 for previous models)
New Type Electronic Monitor with LCD Display
Alternate operation of two units New electronic monitor
Graphic display of operating history, weekly timer, daily report management, maintenance information, operation status
New Type Electronic Monitor
Advanced "Energy-Saving Logic"* functions now standard *(patented)
Minimized Capacity control
-Pressure control range: The Emeraude series features the most efficient control system with a narrower pressure control range of 0.05MPa compared to the conventional pressure control range of 0.1MPa. -With the introduction of "Energy-Saving Logic," unload operation is forcibly performed at every 23seconds of capacity control cycle.By reducing the unload pressure,excessive load operation is eliminated. Through the combination of load-unload switching and timer control, power consumption has been reduced even below previous Kobelco models, producing an economical two-stage high-efficiency compressor, while also reducing running costs.
Conventional Capacity Control
New Type Capacity Control
Delivers high performance without influence from installation environments and unpredictable variables
Operation is possible even in ambient temperature conditions up to 45C¡ã. The totally enclosed fan-cooled motor is designed for high resistance to external dust and moisture. The controller is built to IP65 specifications for protection against unanticipated water leakages. The air end is designed with power to spare, for operation up to 1.03 MPa. Full range of functions to protect electronic components, including
-Control circuit is equipped with an insulated transformer,so that primary surge voltage shall not be transferred to the secondary circuit. In addition, a noise filter is installed to protect the controller unit. -Momentary interruption protection:Within 0.5sec -Automatic reset from power failure:0.5 to 20sec
Reduction in noise of Air-Cooled models
Reduction of pulse noise
A perforated panel silencer is adopted to reduce high-frequency noise of more than 1KHz, and reduce to approx. 15dB on average with less irritating noise. Reduction in noise of ventilation fan wind A louver is attached to the suction vent of the cooling air to reduce wind noise.
Reduction in noise of ventilation fan wind
A louver is attached to the suction vent of the cooling air to reduce wind noise.
Principle of perforated panel silencer
Achieved better performance than conventional units by advanced technologies of Motor & Inverter
A state-of-the-art Interior Permanent Magnet (IPM) motor is adopted as the power source to drive the unit. In combination with its uniquely developed inverter, Kobelco prides itself on delivering a new energy-saving inverter compressor, which boasts the utmost in efficiency and reliability.
Equipped with the world¡¯s 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.
More stable features supporting Kobelco inverter
Built-in Higher harmonic reactor as standard
It reduces harmonics generated by the inverter. * Complies with harmonic suppression guidelines by the Japan Electrical Manufacturer¡¯s Association (JEMA)
Stable operation under adverse condition
Soft Start by KOBELCO Inverter
It reduces peak current when starting-up, thus ensuring smooth start-up and reducing power supply equipment cost
Elaborate Control with Kobelco Inverter (Variable Speed Control)
Required air volume is produced for optimum operating pattern, thus minimizing energy loss.
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 ¡À0.01 MPa, thus supplying the required air volume with precisely controlled operating energy.
Capacity control of ¡°Energy-Saving Logic,¡± ¡±Pressure Stabilizing Control,¡± and conventional control
Inverter control
Capacity control by Variable Speed Control
Power consumption of Energy-Saving Logic and Kobelco inverter
Energy-saving operation is precisely controlled by new feature ¡°Line Pressure Control¡±
Operation environments and conditions under which compressors are operated are always different. Kobelco¡¯s Line Pressure Control maintains the optimal pressure with sensing changes in pressure loss. just by entering the required pressure on the monitor. The optimum-level of energy-saving operation can be achieved by the optimum discharge pressure for each compressor. * The line pressure sensor is optional.
The second stage discharge pressure and line pressure are displayed simultaneously on the monitor so that pressure loss can be monitored in real-time. When the pressure loss increases and the second stage discharge pressure reaches at the compressors specified pressure limit, maintenance alarm is displayed on the monitor to prevent compressor from overloading.
Discharge air volume 48.0-121.7m³/min 270-640kWClass
Ideal Turbo Compressor
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
Features ITCS for energy-saving performance
The built-in ITCS computer monitors unit operation, controlling capacity,while its self-diagnosis function helps prevent unexpected down time.
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.
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Intake filters for cooling air and the air-intake port to the airend have been enlarged. Enhanced resistance to dusty environments has also been provided by introducing a two-stage centrifugal dust-removal process. 
Cooling fan is inverter-controlled type in Kobelion.
