PM IE4 motor – efficiency and reliability at a premium standard

Permanent-magnet synchronous motors (PM) in the IE4 Super Premium Efficiency class are one of the key technological elements that set B&D screw compressors apart. Thanks to modern construction and top-quality materials, they deliver maximum energy efficiency, long service life, and stable operation even in demanding industrial conditions.

Why choose a PM IE4 motor?

Maximum energy efficiency (IE4 class)
IE4-class PM motors meet the most stringent international standards for energy consumption. In practice, this means lower electricity bills, reduced CO₂ emissions, and more sustainable operation of compressed-air systems.

Precise control
Thanks to the synchronous design, the PM IE4 motor allows very accurate matching of speed and torque to current demand. The compressor always runs exactly as the production process requires, eliminating energy losses and increasing overall system efficiency.

User comfort – low vibration and noise
PM motors are exceptionally quiet and stable in operation. Reduced noise and vibration translate into greater operator comfort and the ability to install compressors without additional soundproofing.

Long service life and lower maintenance costs
No brushes and a simplified motor design mean a lower risk of failure and far less frequent servicing. This results in lower operating costs and an extended life of the entire compressor system.

Stability and reliability
PM IE4 motors are resistant to load and ensure uninterrupted operation even in continuous duty. This guarantees production without unnecessary downtime and losses.

Built-in inverter

Variable-Speed Drive (VSD) enables precise motor-speed control and significantly reduces inrush current. As a result, the compressor starts smoothly, without sudden load spikes on the power network, which extends component life and improves overall system stability.

Key benefits of using an inverter in B&D screw compressors:

• Significant energy savings – the variable-speed drive matches compressor output precisely to the momentary demand for compressed air. In practice, this reduces energy losses during periods of lower load and yields savings of up to 35% compared to fixed-speed compressors.

• Synergy with PM motor – combining the inverter with a high-efficiency PM IE4 motor (permanent magnets) achieves even higher efficiency—up to 42% energy savings. This is one of the most economical and eco-friendly solutions available in the compressed-air industry.

• Stable working pressure – the inverter eliminates pressure spikes, keeping pressure within a narrow tolerance. This ensures stable operation of production equipment supplied with compressed air and minimizes downtime due to pressure fluctuations.

• Reduced service costs – smooth start/stop limits mechanical wear of the drive and compression system. Fewer on/off cycles also mean longer bearing, coupling, and motor life.

• Lower noise and vibration – using an inverter together with a PM motor significantly reduces noise and vibration. The compressor runs more quietly and comfortably for its surroundings, which is especially important in production halls where many machines operate simultaneously.

• Lower load on the electrical network – reducing starting current eliminates negative impacts on the power supply, which is crucial especially in facilities with extensive electrical infrastructure.

Inverters in B&D compressors are not just an add-on—they are the foundation of economical and stable operation. Combined with a PM IE4 motor, they create a solution with the highest energy-efficiency class in its category.

Control panel

The B&D controller is an advanced control system for screw-compressor operation that reacts in real time to key parameters and protects the unit from unplanned downtime. It works directly with the inverter and a set of sensors (including temperature, pressure, and flow), ensuring optimal operating conditions and full safety for the entire installation.

The clear display provides detailed information such as:

• current alarms and statuses,

• system and airend module temperature,

• operating hours,

• current operating parameters (pressure, load, speed).

B&D controller functions:

• adjustment of minimum and maximum pressure values,

• work-schedule configuration,

• load control,

• remote monitoring and compressor management via Wi-Fi.

Thanks to the built-in connectivity module, the user gains quick access to service data and current operating parameters from anywhere.

B&D Cloud

B&D Cloud is a modern platform for remote monitoring and management of B&D screw compressors, available via a dedicated mobile app. It enables real-time viewing of operating parameters, analysis of device history, and generation of energy reports.

Benefits of using B&D Cloud:

• Full control in the mobile app – monitor the compressor from anywhere, at any time.

• View of key parameters – pressure, temperature, energy consumption, and operating hours.

• Real-time notifications – instant information about faults, alarms, or threshold exceedances.

• Service planning – maintenance reminders and fault prediction to minimize downtime risk.

• Cost optimization – energy-consumption analysis and reports that help increase installation efficiency.

5-year AirSure warranty

Your equipment works around the clock – make sure it stays that way.

Full service protection, genuine parts, and the assurance of reliable operation for years to come.

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