Sierra series oil-free screw air compressor:

Ingersoll Rand screw air compressor and Ingersoll Rand centrifugal compressor technology have passed ISO oil-free zero level certification. The ISO 8573-1:2010 Level 0 standard specifies the air quality level standards used in high demand production industries such as food and beverage, pharmaceutical, textile, and electronics. It is a strict grading standard that covers strict requirements for suspended solids, water vapor, and oil content. Sierra oil-free air compressors can provide reassuring and pure compressed air with unparalleled energy-saving effects.

Advanced technology

The durable two-stage compressor and oil-free screw technology are the core of the Sierra unit. This makes Sierra a robust machine in the industry. Excellent performance rotor, reliable large gear drive system, advanced super coating, durable ball bearing system, stainless steel air seal, and uniquely designed labyrinth seal. This design provides dual protection against leakage and corrosion.

Super coating

Decades of experience in oil-free screw compressors tell us that rotor coating is an important factor in extending the performance of air compressors. The super coating is specifically designed for oil-free air compressors, with its strong surface adhesion and ability to resist environmental temperature changes, providing unprecedented protection for the rotor and host housing.

Ingersoll Rand Unit

The characteristic of the Sierra unit is the ability to create benefits for customers. The environmental temperature design of 115 ℉ (46 ℃) can eliminate annoying shutdowns caused by high temperatures in summer or dirty coolers. The unit is connected by stainless steel pipes, aluminum water separators, and anti-corrosion components, which extends the service life of the unit and ensures that you receive high-quality compressed air.

Multiple option design

You can choose between air-cooled or water-cooled units. The performance possessed by both types of units. There are also multiple optional options available for you to choose from to meet your different needs, such as outdoor installation, low temperature protection, NEMA4, and more.

Sierra has extraordinary reliability

Since its launch in 1993, Ingersoll Rand's oil-free screw air compressors have been renowned worldwide for their unparalleled reliability. Its durable design makes it a model of high efficiency and long lifespan in the industry. With Ingersoll Rand's oil-free screw air compressor, you will receive a deeper commitment to uninterrupted operation 24 hours a day, 7 days a week.

UitraCoat super coating - reduces operating energy consumption and extends rotor service life

After prolonged use, the coating on the surface of the rotor of an oil-free screw air compressor will peel off. In this case, the rotor is more susceptible to corrosion caused by impurities in the air and changes in ambient temperature, leading to a decrease in the efficiency of the air compressor, deterioration of compressed air quality, and damage to other components. Every oil-free screw air compressor from Ingersoll Rand has its rotor and main engine surface treated with a special super coating to ensure a strong bond between the coating and the mechanical surface, making it difficult to peel off.

At the same time, the intercooler and stainless steel secondary rotor of Ingersoll Rand oil-free screw air compressor are connected by stainless steel and aluminum pipes, which avoids the corrosion of the pipes by the coolant generated during the cooling process, thereby further extending the life of the super coating and rotor. Overall, the super coating air compressor brings higher reliability, excellent compressed air quality, and longer rotor life, greatly increasing the trouble free operation time and reducing system energy consumption.

Exquisite skills

The durable two-stage compression host includes two pairs of high-performance rotors and a reliable large gear drive system.

Advanced UitraCat super coating, durable ball bearing system, stainless steel air seal, and uniquely designed labyrinth seal - all of these unique designs have been tested over time and are efficient and reliable.

With a long history of oil-free technology, since the introduction of Ingersoll Rand's oil-free screw air compressors, we have produced and sold over a million pairs of oil-free rotors, which are widely used in various industries, especially in pharmaceuticals, food and beverage, and electronics, where compressed air quality is highly demanded. Stainless steel rotor, Ingersoll Rand was the first to use stainless steel as the material for the second rotor to ensure the service life of the main engine, thereby ensuring the reliable operation of the air compressor. The high-efficiency intake valve of Ingersoll Rand adopts an industry-leading hydraulic adjustment mechanism to replace the pneumatic adjustment mechanism, which avoids regular replacement of pneumatic components and reduces unnecessary downtime and maintenance costs.

Double sealed, Ingersoll Rand's oil-free screw air compressor adopts a unique stainless steel air seal and labyrinth oil seal. With this double seal, you can ensure absolute oil-free compressed air.