A rotary screw air compressor uses two intermeshing screw rotors to compress air continuously. It is widely used in industrial applications that require a dependable supply of compressed air.

When selecting a screw compressor, consider the required working pressure, free air delivery (FAD), operating hours, load profile, air quality requirements and installation conditions.

A single-stage screw air compressor completes compression in one stage, while a two-stage compressor divides the compression process between two stages.

Two-stage compression, often combined with interstage cooling, can improve compression efficiency under suitable operating conditions. However, the best choice depends on the required pressure, air delivery, load profile and actual machine performance.

Compare the specific power consumption and performance data of the proposed models before making a decision.

Start by calculating your required free air delivery (FAD) and working pressure. Review the air consumption of individual machines, simultaneous demand, production schedules, peak demand and any future expansion plans.

Also consider pressure losses in the piping system, air receiver capacity and any required treatment equipment. A compressor should be selected using the actual system demand rather than motor power alone.

Share your required pressure, estimated air consumption and operating hours with our team to receive a model recommendation.

Configuration options depend on the compressor series and the manufacturer’s available capabilities. Depending on the model, selection factors may include working pressure, motor power, voltage and frequency, cooling method, control configuration and matching air treatment equipment.

Please provide your technical requirements so the manufacturer can confirm feasibility, compatibility, lead time and pricing before placing an order.

For most industrial applications, yes.

Compressed air contains moisture, oil, and dust; without treatment, these contaminants can cause pipeline corrosion, damage pneumatic components, and contaminate products.

• Dryers: Remove moisture; options include refrigerated and adsorption types.
• Precision filters: Remove oil mist, dust, and impurities.

Sollant offers adsorption dryers, refrigerated dryers, and precision filters, providing a convenient one-stop solution for equipment selection.

Not sure what to choose? Contact Sollant for recommendations tailored to your needs.

Oil-injected screw compressors use oil in the compression process for functions such as lubrication, sealing and cooling. The compressed air therefore requires appropriate downstream oil separation and, where necessary, additional air treatment.

Oil-free compressors are designed to prevent oil from entering the compression chamber, but the required air quality should still be verified against the applicable standard and the complete system configuration.

The right choice depends on your industry’s air quality requirements, such as those in food processing, pharmaceutical production or other sensitive applications.

Routine maintenance may include checking and replacing air filters, oil filters and oil separators, inspecting the lubricant, cleaning coolers, checking belts or couplings where applicable, and monitoring operating temperatures and pressures.

Maintenance intervals depend on the specific model, operating environment, lubricant and manufacturer recommendations. For a practical daily checklist, see Sollant Air Compressor: 5 Daily Maintenance Guidelines You Must Know. Always follow the applicable maintenance manual and service schedule.

To help us recommend a suitable compressor, please provide as much of the following information as possible:

• Required working pressure.
• Required air flow or estimated air consumption.
• Preferred motor power, if known.
• Daily operating hours and load profile.
• Power supply voltage and frequency.
• Oil-injected or oil-free air requirements.
• Destination country and required quantity.
• Any special installation