Air Compressor Frequently Asked Questions

Required airflow, minimum point-of-use pressure, duty cycle, simultaneous demand, leakage, future growth, air quality and site conditions all influence the selection.

Choose by free-air delivery at the required working pressure. Motor kW is useful for electrical planning but is not the primary sizing value.

Use a realistic allowance for leakage and credible growth. Excessive oversizing can increase unloaded running and operating cost.

The old machine is a useful reference, but we prefer current demand, controller history and pressure measurements because the plant may have changed.

Yes. Depending on the project, we can review the installation, demand, pipework, ventilation, electrical supply and treatment requirements.

Rotary screw compressors are generally suited to sustained industrial demand, multiple users and high annual operating hours.

Piston compressors can suit intermittent, lower-demand workshop use where the stated duty cycle is respected.

VSD is most useful where demand varies and the compressor can operate within a suitable control range. Actual savings depend on the load profile.

Yes. A correctly sized fixed-speed compressor can be effective for a stable base load.

Higher pressure increases the compression work and can worsen leakage. Operate at the lowest practical pressure that still meets the process requirement.

It provides stored air, helps manage short peaks, stabilises pressure and can reduce excessive cycling. It cannot replace compressor capacity for sustained demand.

Receiver volume depends on flow, the usable pressure band, required support time and compressor control. Use our calculator for an initial estimate.

Many industrial systems use one to control moisture. The right dryer type and dew point depend on the process and environmental conditions.

The filter train depends on contamination risk. It may include bulk separation, coalescing and particulate filtration, with activated carbon for specific applications.

No. High-quality filtration may suit many processes, but genuine oil-free compression is required where the process specification demands it.

Supply voltage, phase, frequency, available breaker capacity, cable route and preferred starting method or VSD arrangement.

Enough to remove the compressor’s rejected heat and provide clean cooling air within the manufacturer’s ambient limits. The requirement depends on total installed power and room layout.

Follow the selected model’s service schedule and operating conditions. Dust, heat and high annual hours can justify more frequent inspection.

Yes. The Titan Emporium services and repairs multiple industrial compressor brands, subject to parts and technical support availability.

Yes. Provide the make, model, serial number and service interval so the correct filters, separator, oil and other parts can be identified.

Include application, pressure, estimated or measured flow, operating hours, location, electrical supply, air-quality needs and photographs of the installation or nameplate.

Yes. We can include compressor, receiver, dryer, filters, drains, delivery, installation and commissioning as required.

Yes. We support national supply and selected installation or service work, with project scope confirmed by location.

Selected compressor and parts supply can be arranged for SADC markets. Logistics, duties, local installation and warranty support are confirmed per project.

Call +27 11 338 6008 or email sales@screwcompressorsouthafrica.co.za with the machine details and requirement.