Kobelco Screw Compressor Manual

Kobelco-screw-compressor-manual 1/1 Downloaded from web01.srv.a8se.com on December 1, 2020 by guest Books Kobelco Screw Compressor Manual If you ally compulsion such a referred kobelco screw compressor manual book that will have the funds for you worth, acquire the unconditionally best seller from us currently from several preferred authors. Kobelco KNW Series rotary screw compressors deliver 100% oil-free air for your critical applications. Oil-free air allows you to produce the highest quality products, lower your costs and protect your employees and the environment. Kobelco KNW Series compressors are the logical choice. This course is designed for KNW compressor service personnel who are responsible for maintenance and equipment repair. This should be of interest to companies who own and operate a Kobelco KNW Series oil-free rotary screw compressor and are responsible for maintaining their compressed air system. GENERAL DESCRIPTION The Kobelco KNW Series air compressor is a heavy duty, two-stage, rotary screw design that provides completely oil-free compressed air. Compressor Oil-Free compressed air is guaranteed by a unique seal arrangement that separates the bearings and gear chambers from the compression section of each stage.

65 - 270kW Class
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

Kobelco Screw Compressor Manual Pdf

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

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

Screw Compressor Used


* 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.
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.

Vane Compressor

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.

At KOBELCO, we build the Kobelco excavator service repair manual download with features you won’t find anywhere else. The Kobelco repair manual will let you power through the toughest jobs, get more done in less time, balance performance with efficiency and stay safe while you do it all. Discover how easy it is to repair and maintain your Kobelco with an authentic Kobelco Service Repair Manual PDF!

BUILT FOR POWER

We know what it’s like to sit in the operator’s seat when you hit something solid. The power boost button on most excavators can deliver the extra force you need to break through, but only in short bursts.

That’s why we designed the detailed instructions for repair in the KOBELCO excavator workshop manual to have no time limit. You’ll never be left demanding power your machine just can’t deliver. Expert and clear instructions comes standard in all KOBELCO conventional excavators – from the Kobelco SK210LC manual on up. The Kobelco service manual is downloaded directly from the website, so the service and repair you need is always right there at your fingertips when you need it. All in easy to read PDF format.

BUILT FOR SAFETY

It’s pretty much impossible to avoid what you can’t see. That’s why we lowered the rear hood of our machines to help you see out the back and removed cab supports to put a single window on the right. From the operator’s chair of a KOBELCO excavator manual PDF, you get a complete understanding of every aspect of Kobelco Service and repair procedures. And that level of detail in the KOBELCO PDF manual might just let you see the end of the job sooner.

The KOBELCO excavator manual also give complete repair procedures for rear camera and rear working lights to help you keep an eye on what’s happening behind the machine. Plus, swing flashers let others know when to stay out of your way.

BUILT TO MULTITASK

When it comes to complicated tasks, the KOBELCO excavator manual will guide you through every service and repair like a pro. Our exclusive KOBELCO manual PDF online download feature allows you to repair the Kobelco without experiencing any loss of power or downtime.

Instead of relying on multiple websites to maneuver through repair topic questions and answers, you can use a single KOBELCO excavator manual to safely and precisely perform every service and repair yourself. And when carrying other heavy loads, you’ll have enough power going to the right places to maintain stability.

Screw

BUILT FOR EFFICIENCY

It’s simple math: extra power often comes at the cost of extra fuel consumption. With KOBELCO excavator workshop manuals, you don’t have to sacrifice either. You get best-in-class Kobelco workshop manual guidance every time you fire up the engine – no matter how tough the job. Three operating modes let operators dial in the perfect balance of fuel economy and jobsite productivity to suit the needs of the day. Use H-mode for heavy-duty operations, S-mode for standard jobs and the ultra-efficient ECO-mode when repairing and servicing using the Kobelco workshop manual is a top priority.

Generation 10 machines take that efficiency even further. They average a 7% increase in work volume per hour while providing up to a 10% increase in fuel efficiency in S-mode and a further 6% in ECO-mode.

BUILT IN THE USA

We’re proudly producing many of our KOBELCO excavator online PDF manuals in Moore, South Carolina. This state-of-the-art workshop manual facility can produce more than 1,800 machines a year with plenty of room to expand. It’s just one way we can be sure our KOBELCO online excavator manuals are truly built like no other.

We also support our research for the KOBELCO manual through our 100,000 square-foot parts and workshop manual facility and North American headquarters in Katy, Texas. The central KOBELCO online manual PDF location allows us to send the KOBELCO manual to you via online download anywhere you need, while onsite workshop PDF facilities allow us to train dealers to provide the best possible KOBELCO service manual download at their locations across the Americas.