Custom 22kW to 315kW Fixed Speed Two Stage Air Compressor

Elily customized 22kW–315kW two-stage fixed-speed rotary screw air compressors adopt advanced two-stage compression architecture to lower overall operating load. Equipped with durable imported SKF bearings and a robust fixed-speed structure, the machines deliver reliable performance with minimal maintenance requirements. Supporting adjustable working pressure from 0.8 MPa to 1.6 MPa, this series provides stable and cost-effective compressed air solutions for medium and large-scale industrial factories.

I. Two-Stage Compression Structure — Lower Load & Higher Durability

The compressor is configured with independent low-pressure and high-pressure rotor groups for staged compression. After the first-stage compression, air passes through an intercooler before entering the second stage. This design divides the traditional single-stage compression ratio of 8–9 into two balanced compression stages of approximately 3 each.

It effectively reduces air-end operating pressure, lowers heat generation, and minimizes mechanical fatigue. Compared with single-stage compressors, the two-stage structure greatly reduces failure rates and improves overall stability, making it highly suitable for 24-hour continuous industrial operation.

II. Optimized High-Efficiency Rotor Profile — Stable Long-Term Efficiency

This unit adopts an upgraded asymmetric rotor profile with optimized sealing strip structure, replacing conventional linear sealing designs. The precision meshing clearance improves volumetric efficiency and enhances overall operational performance by 5%–10% compared with standard compressors.

The large-diameter and low-speed rotor design reduces mechanical friction and operating noise, slowing air-end aging and ensuring consistent efficiency even after long-term continuous operation.

III. Imported SKF Heavy-Duty Bearings — Extended Service Life

The two-stage air-end is fully fitted with genuine Swedish SKF heavy-duty bearings on both ends. These bearings feature strong load capacity and excellent impact resistance, fully adapting to high-intensity 24/7 industrial working conditions.

With extremely low wear rates during continuous operation, the bearings significantly extend equipment overhaul cycles. The overall service life is increased by more than 30% compared with ordinary bearing configurations, effectively reducing long-term replacement costs and downtime losses.

IV. Fixed-Speed Direct Drive System — Simple Structure & Easy Maintenance

Matched with an industrial-grade fixed-speed motor, the direct-drive transmission eliminates gearbox power loss and maintains steady and consistent air output efficiency.

Without complex frequency conversion electronic components, the whole electrical system features simple circuitry and highly universal spare parts. Daily maintenance only requires regular replacement of filters and lubricants, eliminating the need for professional technical operation. The unit can run stably even in unattended factory workshops.

V. Wide Customizable Pressure Range — Adaptable to Diverse Industries

This two-stage fixed-speed compressor supports fully customizable working pressures including 0.8 MPa, 1.0 MPa, 1.3 MPa, and 1.6 MPa. Customers can select precise pressure levels according to actual production demands, avoiding unnecessary energy waste from excessive pressure output.

It perfectly matches the air supply standards for textile and chemical fiber processing, mechanical manufacturing, mining and metallurgy, food packaging and other industries, achieving multi-scene compatibility with one single equipment model.

Product Specifications:

Note: The air output flow will slightly drop when the set working pressure rises. All technical parameters listed are tested values under standard rated operating conditions. Fully customized structural and parameter configurations are available on request.

Applications:

Elily customized 22kW–315kW two-stage fixed-speed rotary screw air compressors are widely applicable to diverse medium and large industrial scenarios that require long-term, continuous, and stable compressed air supply.

In the textile and chemical fiber industry, the equipment provides steady uninterrupted air supply for air-jet looms and air-jet spinning production lines. For chemical and pharmaceutical factories, it delivers reliable compressed air for pneumatic instrument operation and automated material handling systems.

In electronic manufacturing, it supports stable air source supply for SMT workshops and precision processing equipment. In mechanical processing, it serves CNC production lines, batch spraying operations, and industrial air blow-off procedures.

For mining and metallurgy industries, the compressor meets the air demand for rock drilling, mineral processing, and smelting auxiliary operations. In the food and beverage sector, it is widely used for product filling, automated packaging, and pneumatic material conveying. Additionally, it offers stable air supply for dust removal, air purging, and desulfurization systems in the power industry.

Thanks to its constant output performance and durable structural design, the two-stage fixed-speed air compressor remains the optimal choice for industrial production requiring long-duration, stable, and consistent compressed air operation.

Warranty & After-Sales Service

Elily’s customized 22kW–315kW two-stage fixed-speed rotary screw air compressor comes with a 1-year full machine warranty, while core components including the two-stage air end and SKF bearings enjoy an extended 2-year warranty.

We deliver a professional after-sales support system with a 2-hour rapid response for all technical inquiries and service requests. On-site inspection and repair services are available within 48 hours for prefecture-level cities across China.

Each unit is supplied with complete installation guidelines and professional maintenance tutorial videos to support standardized daily operation. Core consumables, namely the three filters and lubricating oil, are kept in sufficient stock all year round and can be shipped out within 48 hours to minimize equipment downtime.

Furthermore, we provide free remote troubleshooting guidance and customized annual inspection and maintenance plans. Tailored annual maintenance packages are available for medium and large manufacturing enterprises to ensure long-term stable and efficient equipment operation.

Logistics and Delivery

Our large two-stage fixed-speed air compressors are fastened on thickened solid wood pallets and fully wrapped with stretch film for reinforcement. This packaging structure safeguards the unit against heavy loads, impact shocks and tilting risks during transit.

For domestic clients, we provide dedicated truck delivery to major industrial cities nationwide, and we can offer auxiliary hoisting and on-site positioning guidance upon arrival.

For overseas export orders, trade terms of FOB and CIF are both available. We supply a complete set of export certifications and customs clearance documents, with all-round protective measures adopted for full sea and land transportation cycles.

Partner Brands

We have long-term cooperation with many well-known enterprises, including China Railway, large textile conglomerates, chemical industrial parks and top food manufacturers. Boasting stable and reliable quality, our medium and large two-stage rotary screw air compressors have become the preferred long-term centralized compressed air supply solution for industrial production.