KIMAIR EI Series Two-Stage Rotary Screw Air Compressors

The KIMAIR EI two-stage rotary screw air compressor utilizes two-stage compression technology, which significantly improves compression efficiency compared to traditional single-stage compression. In the two-stage compression process, air is first compressed in the primary compression stage, then cooled in an intercooler before entering the secondary compression stage for further compression. This process effectively lowers the temperature of the compressed air, reduces compression work, and makes the compressor more energy-efficient, resulting in substantial electricity cost savings for enterprises. Actual application data shows that using the KIMAIR EI two-stage rotary screw air compressor can save 15% - 20% in energy compared to single-stage compressors, leading to considerable long-term economic benefits.

Category：

Rotary Screw Air Compressors

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| Product Details

Video Tutorial

KIMAIR EI Series Two-Stage Rotary Screw Air Compressors Principle Explanation Video

KIMAIR Core Advantages

Energy Efficiency Leap

Two-stage compression reduces energy consumption by approximately 15% compared to single-stage compression. The specific power is significantly optimized, resulting in direct electricity cost savings.
Lower Temperature, Longer Life

Interstage cooling significantly reduces the operating temperature of the airend. This extends the life of the lubricant and rotors, with core components designed for a service life exceeding 80,000 hours.
Stable High Pressure

Easily provides a stable high-pressure air source of 0.8-2.0 MPa with minimal pressure fluctuation, meeting the demands of specialized processes.
Easy Maintenance

Utilizes a platform-based design with well-organized access to service points and specialized tools to simplify maintenance procedures.

Technical Specifications

Model	Motor Power		Free air delivery（m³/min）				Lub. Oil（L）	Outlet	Weight（kg）	Dimensions（mm）
Model	（kW）	（Hp）	0.7MPa	0.8MPa	1MPa	1.3MPa	Lub. Oil（L）	Outlet	Weight（kg）	Dimensions（mm）
K30EI	22	30	4.2	3.9	3.4	2.6	15	G1¼	650	14008501600
K50EI	37	50	7.5	7.0	6.2	5.1	35	G1½	980	16009701830
K75EI	55	75	12.0	11.0	9.5	7.8	45	G2½	1600	186013001750
K100EI	75	100	16.2	15.0	13.0	11.0	60	DN65/G2	1800	190015501700
K120EI	90	120	19.5	18.5	16.2	12.5	80	DN80	2500	238017501900
K150EI	110	150	23.1	21.7	19.2	17.0	90	DN100	2800	240018501970
K180EI	132	180	28.5	27.1	23.8	21.0	115	DN100	3200	270019002200
K220EI	160	220	32.0	30.9	28.5	24.0	120	DN100	4200	300018852446
K250EI	185	250	37.9	35.2	31.2	27.5	150	DN125	4950	320019002450
K270EI	200	270	43.0	40.5	35.0	31.0	160	DN125	5000	320019002450
K300EI	220	300	46.0	44.0	38.5	33.0	200	DN125	5100	320019002450
K340EI	250	340	52.0	50.0	42.5	37.5	220	DN125	5200	330024002400
K380EI	280	380	56	54.5	50.5	42.0	235	DN125	7300	345023002750
K420EI	315	420	64	62	55.0	47.0	240	DN125	7400	380024002800

Application Scenarios

Ideal power source for the following application scenarios:

- Mining machinery power, shipbuilding
- High-pressure air source for chemical processes
- Test benches and clusters of pneumatic tools requiring stable high-pressure air

Customer Frequently Asked Questions (FAQ)

Q: How much more expensive is a two-stage compressor compared to a single-stage one? What is the return on investment?

A: The initial investment is approximately 10%-20% higher. However, due to significant energy savings (typically over 15%), the additional cost can be recovered through electricity savings within 1-2 years under high-load operating conditions, resulting in substantial long-term economic benefits.

Q: Is the EI series suitable for replacing piston compressors?

A: Yes, it is highly suitable. When providing an equivalent high-pressure air source, the EI series offers significant advantages such as lower noise, lower vibration, less maintenance, and lower operating costs, making it an excellent solution for energy-saving retrofits of piston compressors.

Why choose the KIMAIR EI series?

- Clear Return on Energy Efficiency Upgrade: Supported by clear energy-saving data, it significantly reduces your high-pressure power costs with a short payback period.
- High Reliability: The two-stage, low-temperature operation concept translates directly into longer core component life and a reduced risk of unexpected shutdowns.
- Best Choice for Upgrades and Replacements: Specifically optimized to replace high-energy-consumption piston compressors or single-stage high-pressure screw compressors, providing a seamless upgrade experience and professional support.
- Globally Proven Design: The product design is based on extensive industrial application feedback and operates stably in numerous demanding high-pressure conditions worldwide.