Kobelco compressor Instruction Manual - AG370, AG610. Kobelco Kobelion II VS series Kobelco Kobelion II Oil-Flooded Screw Compressors achieves the maximum level of discharge volume and efficiency in its range.
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65 - 270kW Class
Discharge air volume 10.5 - 49.3 m3/min(0.69MPa)
Discharge air volume 10.5 - 49.3 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 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.
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
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
![Kobelco screw compressor manual hydraulic Kobelco screw compressor manual hydraulic](/uploads/1/1/3/8/113839383/941517728.png)
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
Alternate operation function of two units-Graph display of operating history, weekly timer, daily report management, maintenance information, and operation status.
Built-in Higher harmonic reactor as standard
* 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.
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.![Kobelco Screw Compressor Manual Kobelco Screw Compressor Manual](/uploads/1/1/3/8/113839383/912637622.png)
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.
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.
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.
This Exhaust Cleaner has its self oil separation and recovery function. This can prevent differential pressure increase and can realize long term maintenance interval.
Summit of high-tech for extreme efficiency. Premium energy saver with industrial top notch Air-End, super premium efficiency (IE4 equiv) IPM motor, built-in overhung design. Much wider range, much better usability. Energy saving with Inverter Super premium efficiency IPM motor (IE4 equiv) Built-in overhung design New Wide Range Control Kobelink compatible Resistance to high ambient up to 50℃ |
Kobelco Oil Free Compressor
BUILT-IN OVER HUNG DESIGN, |
Super Premium Efficiency IPM Motor (IE4 equiv)New Kobelion VS series equips super premium efficiency IPM (interior permanent magnet) motor, which efficiency is equivalent to IE4 of IEC standard. IPM has better efficiency from low load to high load compare to induction motor. This IPM is with oil cooled jacket cooling system with insulation class H, which has better resistance to high ambient conditions. (*) Standard of motor efficiency is defined by IEC (Electrotechnical Commission) standard and it defines IE1=Standard Efficiency, IE2=High efficiency, IE3=Premium Efficiency, and IE4=Super Premium Efficiency for induction motor. As IPM is synchronous motor, IPM is not defined in this scheme. IPM equipped on VS series has the efficiency beyond IE4 of induction motor, and has good efficiency in wide range of the working load. |
Summit of Inverter controlSince we applied first IPM motor on Inverter compressor in 1998, we have been accumulated know-how for nearly 20 years. Wide Range Control and Built-in Overhung Design are some of our unique technology leading inverter compressor in the world. 'Providing exact volume and pressure what user needs.' It is quite simple in words, but adjusting compressor speed depends on the demand of factory load which will change from moment to moment without hunting or overshoot is quite delicate issue. New Kobelion VS series offers maximum energy saving with minimum pressure fluctuation backed by own algorithm to run inverter of Kobelco as a pioneer of inverter compressor. |
New Wide Range ControlIn case that required pressure of compressor is 0.5MPa, you may be able to use one size smaller compressor. Wide Range Control of Kobelion VS can deliver much higher flow when it runs at lower pressure point. Kobelion VS senses line pressure and automatically change maximum rpm limit. New Kobelion VS achieves much higher flow and much wider pressure range. As a leading company of Inverter compressor, we can offer cutting-edge value. |
Kobelco Screw Compressor Manual
New Generation Smart Controller NGSC-700 ControllerKobelink-Remote monitoring system'NGSC-700 for VS series equips 7.0 inch full color touch operation monitor. Sophisticate LCD interface enables you to figure out following information at a glance.'
Various user interface |
Kobelco Screw Compressor Manual Diagram
Compressor Group ControlUp to 6 units of compressor can be control by inbuilt sequencing function without external control panel. (Hard wire connections are needed) Available only for NGSC-700/430 mounted model) | Other features
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