Emeraude ALE Ⅳ (132-400kW)

Class-leading specific power consumption

With specific power consumption as our primary design criterion, we strive to deliver products that maximize energy efficiency for our customers. The integration of ultra-high-efficiency motors and optimized package design has enabled us to set a new benchmark for specific energy performance in its class.

Newly designed high efficiency rotors

A new rotor profile has been designed using advanced analysis technology that KOBELCO has fostered in their long history since developing the first oil free screw compressor in Japan in 1956. KOBELCO has achieved class-leading specific energy consumption thanks to the new rotors which have been designed superior performance.

●Optimization of the inter stage pressure
●Optimization of rotor clearance
●Improvement of shaft sealing structure

Package design for no wasted energy

Internal piping design, high efficiency motors and fans contribute to energy savings. Moreover, gas coolers' optimization decreases the discharge temperature and downsizes auxiliary equipment such as dryers. This leads energy saving of not only compressors but also clean air systems.

Partial-load performance of Inverter model

Inverter model's partial load performance has been improved thanks to IPM motor and superior rotor design. Inverter model supplies required air volume in appropriate power consumption.

Stable pressure control of Inverter model & Energy saving logic of Fixed speed model

Stable pressure control of Inverter model keeps the line pressure lower. And the pressure fluctuation is kept within 0.01MPa. Energy saving logic of Fixed speed model forcibly switch loading to unloading at every capacity control cycle (min 23sec). Excessive pressure rise is eliminated and energy loss is minimized.

Unique design to ensure "Oil-free"

KOBELCO's proven dual vent holes design prevents oil entry in compressor chambers during unload running.

Class 0 certified

KOBELCO has received Class O certification (ISO8573-1 [:0]) for (Emeraude ALE) series from international test institute called TÜV which certifies the highest level of purity for quality classifications of compressed air.

Long life cycle

Long Overhaul cycle has been achieved thanks to long life cycle bearings.

Superior Anti-corrosion performance

Proven Teflon coating and 2nd stage's Stainless steel rotors secure high durability against drain attack and prevent performance deterioration due to corrosion.

Outstanding quietness

Various noise control techniques has drastically reduced sound level. Making the working environment more comfortable.

Package structure for noise reduction

Cooling air inlet points have been put into one place to reduce noise.

Panel design

Noise absorbing material and high sealing ability against abrasive noise reduce noise leakage.

Silencer

Newly designed suction and discharge silencers reduce noise level.

New measurement standard is more stringent than previous one because of 9point average and 1m around the unit.

Easy maintenance

Easy access to key service parts for maintenance thanks to large panels and reduction of internal piping.

Exhaust cleaner without power source or instrument air

Filter type and compact exhaust cleaner has over 99% of oil mist separation performance and keeps inside of unit clean. Moreover, pressure resistance doesn't increase for long time because oil mist is separated itself.

Main motor

IPM motor for Inverter model

Heat loss is small and high efficiency is kept even during low load condition.

Comparison of motor efficiency (for reference)

Comparison of structure

IE3 motor for fixed speed model

Enhancing usability with touchscreen controller

Equipped with a 7-inch full-color touch screen controller, it allows for easy monitoring of compressor operation and various settings.

Group control (up to 6 units)

By interconnecting multiple units, max, 6 units can be automatically operated, achieving optimal energy-saving operation without group controller.

Protection features

●7500V surge protector
●Water flow switch (for water cooled model)
●Emergency stop button
●Motor winding temperature detection
●Password protection
●Power failure protection (within 0.5sec)
●Auto restart after power restoration (within 20sec)