KIMAIR PE Series Two-Stage PM Motor Inverter Rotary Screw Air Compressors

The PE series represents KIMAIR’s premier energy-efficiency product line, seamlessly integrating two cutting-edge technologies: permanent-magnet synchronous variable-frequency drive and two-stage compression. Designed to deliver world-leading energy-efficiency solutions for the most demanding high-pressure, variable-load industrial applications, it achieves exceptionally low total lifecycle costs and serves as a core piece of equipment for enterprises seeking to achieve deep energy savings and carbon neutrality.

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PM Motor Inverter Rotary Screw Air Compressor

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Video Tutorial

KIMAIR PE Series Two-Stage PM Motor Inverter Rotary Screw Air Compressors Principle Explanation Video

KIMAIR Core Advantages

Peak Energy Efficiency

Combines an IE5 Permanent Magnet Motor with two-stage compression, achieving up to 40-50% energy savings compared to traditional high-pressure fixed-speed units, setting a new benchmark for industry energy efficiency.
Ultra-Wide Efficient Operating Range

Maintains nearly constant high efficiency across a wide range of load and pressure variations, unaffected by fluctuating operating conditions.
Ultimate Reliability

Ultra-low operating temperature (due to two-stage compression + high-efficiency cooling) combined with wear-free permanent magnet drive ensures unparalleled operational life and stability.
Intelligent Brain

Standard with KIMAIR Smart Control System, enabling adaptive optimization, predictive maintenance, and seamless cloud connectivity.

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)
K30PE	22	30	4.2	3.9	3.4	2.6	15	G1¼	650	14008501600
K50PE	37	50	7.5	7.0	6.2	5.1	35	G1½	980	16009701830
K75PE	55	75	12.0	11.0	9.5	7.8	45	G2½	1600	186013001750
K100PE	75	100	16.2	15.0	13.0	11.0	60	DN65/G2	1800	190015501700
K120PE	90	120	19.5	18.5	16.2	12.5	80	DN80	2500	238017501900
K150PE	110	150	23.1	21.7	19.2	17.0	90	DN100	2800	240018501970
K180PE	132	180	28.5	27.1	23.8	21.0	115	DN100	3200	270019002200
K220PE	160	220	32.0	30.9	28.5	24.0	120	DN100	4200	300018852446
K250PE	185	250	37.9	35.2	31.2	27.5	150	DN125	4950	320019002450
K270PE	200	270	43.0	40.5	35.0	31.0	160	DN125	5000	320019002450
K300PE	220	300	46.0	44.0	38.5	33.0	200	DN125	5100	320019002450
K340PE	250	340	52.0	50.0	42.5	37.5	220	DN125	5200	330024002400
K380PE	280	380	56	54.5	50.5	42.0	235	DN125	7300	345023002750
K420PE	315	420	64	62	55.0	47.00	240	DN125	7400	380024002800

Application Scenarios

- Critical process air systems in large-scale petrochemical and coal chemical industries
- Testing and production in high-end equipment manufacturing and aerospace sectors
- Flagship energy-saving project for corporate energy centers

Customer Frequently Asked Questions (FAQ)

Q: What is the approximate payback period for the PE series?

A: Although the initial investment is higher, the remarkable energy savings in continuous, high-pressure, variable load applications can shorten the payback period to 2-4 years. The subsequent continuous energy savings become pure profit for the enterprise, offering very substantial long-term financial returns.

Q: The PE series is highly efficient. Does this impose higher demands on the cooling system and operating environment?

A: This is an important technical concern. Please rest assured. As an industrial-grade compressor, the PE series' requirements for the basic operating environment (e.g., ventilation, ambient temperature, air quality) are consistent with the same standards as comparable compressors. We have not imposed stricter installation conditions due to its efficient design.
1. Follows General Environmental Standards: The PE series is designed for standard industrial ambient temperatures (typically -5°C to +45°C) and requires installation indoors with good ventilation and low dust levels. These are the standard installation practices followed by all KIMAIR screw compressors, including the SI and PS series.
2. Efficient Design Optimizes Internal Heat Balance: The efficiency of the PE series offers internal thermal management advantages. The IE5 PM motor generates lower heat losses, and the two-stage compression reduces the single-stage compression ratio and discharge temperature. This means that under the same environmental conditions and load, the total heat load the cooling system needs to manage is potentially lower, contributing to enhanced overall system thermal stability and reliability.
3. Matched with a Robust Cooling Support System: To ensure sustained peak performance, the PE series is equipped with a high-efficiency cooling system (e.g., large-sized coolers and smart fan control) matched to its high power density. The design goal of this system is to ensure that under any permitted operating condition, critical component temperatures are maintained within the optimal range, guaranteeing its promised ultra-high energy efficiency and ultra-long life.

Why choose the KIMAIR PE series?

- The Ultimate Answer for Peak Energy Efficiency: Represents the top-tier energy efficiency level for global screw compressors, acting as a strategic asset for enterprises pursuing deep energy savings and carbon neutrality goals.
- Lowest Total Lifecycle Cost (LCC): The higher initial investment is quickly covered by enormous energy savings, leading to an unparalleled advantage in long-term operating costs.
- Impeccable Reliability: The combination of ultra-low temperature operation and a wear-free permanent magnet drive defines a new standard for industrial equipment reliability.
- Symbol of Brand and Strength: Choosing the PE series strongly demonstrates your enterprise's commitment to excellence, long-term value, and social responsibility.