KIMAIR KOS Series Oil-free PM Motor Inverter Rotary Screw Air Compressors

The KOS series represents the pinnacle of KIMAIR's oil-free technology, integrating three major advanced technologies: "oil-free dry-type," "Permanent Magnet Motor (PM Motor)," and "Variable Speed Drive (VSD)." It provides a globally leading "ultra-efficient, high-purity air" solution. Ensuring the highest safety standard of 100% oil-free contamination prevention, it achieves ultimate energy efficiency, making it the ultimate air source tailored for top-tier manufacturing and advanced scientific research.

Category：

Oil-free Rotary Screw Air Compressors

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| Product Details

Video Tutorial

KIMAIR KOS Series Oil-free PM Motor Inverter Rotary Screw Air Compressors Principle Explanation Video

KIMAIR Core Advantages

Ultimate Energy Efficiency

- The application of an IE5 PM Motor to an oil-free compressor elevates efficiency to unprecedented levels, achieving 30%-40% energy savings compared to traditional fixed-speed oil-free models.
Absolute Purity Assurance

- Maintains core oil-free dry-type technology, ensuring Class 0 oil-free standards through physical isolation – safe, reliable, with no compromise.
Unmatched Stability

- The PM Motor provides high torque and fast response. Coupled with precision transmission, operation is extremely smooth, with pressure control accuracy reaching ±0.01 MPa (gauge pressure).
Model of Quiet Environmental Care

- Ultra-low electromagnetic noise and optimized mechanical noise control create a quieter working environment.
Optimal Life Cycle Value

- Extremely low electricity costs and outstanding reliability provide an absolutely competitive Total Cost of Ownership (TCO).

Technical Specifications

Model	Motor Power		Free air delivery （m³/min）			Outlet	Weight （kg）	Dimensions （mm）
Model	（kW）	（Hp）	0.75Mpa	0.85Mpa	1Mpa	Outlet	Weight （kg）	Dimensions （mm）
KOS75	55	75	7.0-9.1	6.5-8.0	6.0-7.5	DN65	3100	235016501950
KOS100	75	100	7.0-11.8	6.5-11.2	6.0-10.8	DN65	3200	235016501950
KOS120	90	120	7.5-14.5	7.5-13.5	6.0-12.8	DN65	3350	235016501950
KOS150	110	150	9.0-19.1	8.5-17.4	/	DN80	3750	310018002300
KOS180	132	180	9.6-22.5	9.2-20.1	/	DN80	3850	310018002300
KOS200	145	200	10.6-24.5	9.2-21.9	/	DN80	3850	310018002300
KOS220	160	220	15.2-28.5	14.3-26.2	14.0-24.4	DN80	5400	350020002300
KOS270	200	270	15.7-36.5	15.6-34.0	14.1-30.5	DN80	5600	350020002300
KOS340	250	340	19.0-44.0	18.2-41.0	16.8-38.5	DN80	5800	350020002300
KOS380	280	380	22.5-48.0	19.2-43.5	18.8-40.8	DN80	6000	350020002300
KOS420	315	420	25.0-50.8	25.0-50.6	/	DN80	6200	350020002300
KOS150W	110	150	9.5-19.3	8.9-17.5	7.7-15.8	DN80	2700	270016502000
KOS180W	132	180	9.5-22.5	9.2-20.2	8.6-18.8	DN80	2840	270016502000
KOS200W	145	200	10.6-24.7	9.2-21.9	8.6-20.5	DN80	3250	270016502000
KOS220W	160	220	14.8-29.5	14.3-26.4	14.0-24.4	DN80	4900	320018002170
KOS270W	200	270	15.7-37.5	15.6-34.2	14.1-30.5	DN80	5100	320018002170
KOS340W	250	340	19.0-44.0	18.2-41.3	16.8-38.5	DN80	5300	320018002170
KOS380W	280	380	22.5-48.2	19.2-44.0	18.8-40.8	DN80	5500	320018002170
KOS420W	315	420	25.0-50.8	25.0-50.6	/	DN80	5700	320018002170

Application Scenarios

- Core process air for semiconductor wafer fabs and display panel fabs

- High-end production lines for biologics, vaccines, and antibodies in biopharmaceuticals

- National-level research laboratories and metrology/inspection centers

- Global lighthouse factories with the highest requirements for both energy consumption and air quality

Customer Frequently Asked Questions (FAQ)

Q: Is the KOS series the most expensive oil-free compressor on the market? Where is its value?

A: The KOS series represents the highest technical standard, with an initial investment indeed in the premium range. However, its value lies in: 1) Massive electricity cost savings that quickly offset the purchase cost; 2) Top-tier reliability ensuring continuous production and avoiding costly downtime; 3) Superior air quality protecting core processes and equipment worth millions. From an ROI and risk management perspective, its long-term value is unparalleled.

Q: How is the heat dissipation of the PM Motor solved in an oil-free environment?

A: The KOS series uses a dedicated independent cooling duct and intelligent temperature control system developed specifically for permanent magnet oil-free compressors. The motor's cooling airflow is completely isolated from the compression chamber. This ensures efficient motor cooling while absolutely preventing any external contamination – a clever and reliable design.

Why choose the KIMAIR KOS series?

- Defines a New "Ultra-Efficient, High-Purity Air" Standard: Integrates three major cutting-edge technologies, representing the highest global technical level and energy efficiency performance in this field.

- Empowers Top-Tier Manufacturing: More than an air source, it is critical infrastructure for ensuring yield, product purity, and core equipment safety on advanced production lines.

- Superior Long-Term Investment Value: Despite higher initial costs, its comprehensive advantages in energy consumption, reliability, and maintenance intervals deliver the lowest Total Cost of Ownership for premium users.

- Trusted Strategic Partner: Choosing KOS means choosing to face the most stringent challenges with a leader in air compression technology and sharing the most reliable solutions.