Integral gear technology - Atlas Copco Indonesia

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Integral gear technology

Giving your process the extra edge, integral gear technology is the industry’s most efficient and compact gear design. With its process-oriented engineering know-how and vast experience, we are a proven market leader in applying integral gear design to the gas and process business

Contact our experts for integral gear technology

Highest efficiency

Due to multi-speed capability for optimal speed on each stage and reliability for your process.

Smallest possible footprint

Due to compact design single gear box and single coupling. No need for additional gear box and no additional coupling at higher compression service

Intercooling after each stage possible

Resulting in isothermal compression: less power consumption and installed power of the driver system

Improving compressor and expander efficiency

Operating two pinions through one common bull gear, integrally geared design provides multi-speed capability for your turbocompressor and turboexpander. This allows you to run each machine stage at its optimum speed, ultimately giving you best efficiency possible. Generally, it is economically desirable to use the smallest possible compressor. The higher the flow coefficient, the larger the suction rate for any given impeller diameter. For a multi-stage compressor, the first stage impeller is designated to have the maximum flow coefficient. The flow coefficient of the subsequent impellers decreases as inlet volume decreases, if the shaft speed is constant (e.g. single shaft technology). Increasingly, that leads to sub-optimal designs as the suction volume of the subsequent compressor stages decreases.

Optimal efficiency and cost

With integral gear technology, the speeds of the subsequent impellers along the compression are adopted in order to achieve the best possible design in terms of your equipment efficiency and cost. As a matter of fact, integral gear technology is extremely well suited to customize compressors to your specific process conditions and requirements – especially for higher pressure ratios.

The roots of integral gear technology

Our track record includes hundreds of integrally-geared units built according to API 617, chapter 1 and chapter 3. Integrally geared equipment was introduced almost 70 years ago in the air separation industry. Subsequently, it emerged as a proven technology, benefiting from advancements in aerodynamic, rotor-dynamic and thermodynamic knowledge, and from advanced methods to producing accurate rotating and various complex components – all this at reasonable costs. Improvements to shaft seal technology further drove the move, with integrally geared compressors being fully accepted by refinery and petrochemical markets after its inclusion into 7th edition of API 617 in chapter 3 in 2002. With decreasing complexity, higher reliability and lower weight through compact design, that’s even more so the case today.

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GT-Series centrifugal compressors

six stage integrally geared turbocompressor for PSA tail gas application

GT-Series centrifugal compressors

Use integral gear technology, the industry's most efficient gear design, in your process. See how

Use integral gear technology, the industry's most efficient gear design, in your process. See how

Use integral gear technology, the industry's most efficient gear design, in your process. See how

Industries using integrally-geared technology

Turbocompressors and turboexpanders for your process needs

LNG industry

Go inside our compressor and expander solutions for the growing LNG industry

Chemical and petrochemical

Find out how we serve the complex requirements of the chemical & petrochemical industry

Farmer in tractor fertilizing wheat field at spring with npk

Fertilizer

Our centrifugal compressor solutions drive the fertilizer industry. See how

fuel gas booster compressors for natural gas driven power plant

Power Generation

Understand how our compressor, dryer and blower solutions maintain your power plant's uptime

Industrial Gases

Integrally-geared or single-shaft compressors for your application needs in industrial gases.

expander generator for geothermal and waste heat recovery

Renewables & Energy Recovery

See first-hand how our solutions tap into the vast potential of new energy sources