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Kobelco KNW Series air compressor brochures and product information. The heavy-duty air end design has proven itself consistently since Oil-free rotary screw Kobelco KNW air compressors are used in a variety of.

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The design increases gear and bearing life and is not offered on competitive models. To ensure long operating life and smooth operation, the bearings are anti-friction type, and the electric motor is directly coupled to the input drive shaft by way of a flexible coupling.

Kobelco KNW Series air-cooled models include a thermostatic mixing valve to insure proper oil temperature in changing ambient temperatures.

Oil-free air is used for critical instrument air requirements. The Kobelco KNW Series oil-free rotary screw air compressor uses an Allen Bradley programmable controller to control and monitor compressor operation. We provide special packages for the rental market to meet demands of customers that have temporary or emergency needs for clean dry air.

The valve is a positive-closing disc type with orifices, using spring and air pressure to activate. VFD control becomes less energy efficient compared to fixed speed when operated at the upper end of speed range. All values are also available for remote monitoring. Real time pressure and temperature values are displayed on the HMI.


Fixed speed, also known as load-unload, provides energy-efficient operation during loaded and unloaded operation. Air Filter Element with pre-filter.

This reduces the overall energy cost significantly. We are a world leader in oil-free, rotary-screw technology.

Product Information | Kobelco KNW Series

Air is inside of the tubes and water is in the shell. The compressor will not operate until oil pressure is established. The stainless steel, non wearing air and oil seals with dual vents to atmosphere, assure oil-free air. This design includes a patented, high-efficiency super rotor profile and cooling jackets. Other finishes are available for extreme environments.

Kobe Steel Founded inKobe Steel is a machinery and materials manufacturer and provides industry related engineering services. Competitors use carbon rings with single vents and no thrust balance.

In order to reduce axial thrust, an air pressure-operated thrust balance piston is incorporated at each stage, minimizing thrust loading and further improving bearing life. A universal communication module is also available to handle virtually any Ethernet or Serial driver.

Kobelco KNW Series Oil-Free Rotary Screw Air Compressors

We provide nationwide parts and service support through our authorized distributor network. Competitors use an overhung design. These files can then be opened using Microsoft Excel. The Kobelco KNW Series’ compressor air end is a heavy-duty, two-stage design in which both stages are driven by a common gear.

Competitors use a lip seal design, which is prone to wear and leakage. VFD control provides a narrow system pressure band, reduces inrush at start-up, and allows more sfries stops and starts.


Kobelco KNW Series®

Oil-free air is required for process air to prevent product contamination. Simply stated, our Kobbelco Series delivers percent oil-free air for all critical, specialized applications. The powder coating is applied to the base, frame and enclosure. Unloaded horsepower is guaranteed and repeatable. Oil-free air prevents contamination of cans, bottles and packaging made for food and beverage items.

Messages are sent to direct the operator for service, pre-alarms, and alarms, and will be shown when necessary. Oil-free air is required for pneumatic cylinders, blowing and spray guns.

Operations include controlled sequential starting and stopping, pressure control, and protection from conditions that could damage the compressor. For more information please visit www. Internal turbulators provide optimum heat transfer with minimal pressure drop.

This Super Rotor design is mobelco the Kobelco KNW Series is widely accepted iobelco the most efficient two-stage, oil-free rotary screw air compressor on kobelvo market — not to mention that this novel new asymmetric rotor profile has the lowest power consumption per cubic foot of compressed air.

Required settings for pressure control, temperature alarms, and control time delays are viewable and may be modified using the touch screen.