SAV+ Series PM VSD Screw Air Compressors

In one factory, different processes often have different compressed air requirements: some need only 0.5MPa, while others cannot do without 1.25MPa. If every pressure step gets its own machine, the equipment register becomes complicated and maintenance spares are hard to standardise.

The Fusheng SAV+ Series PM VSD screw air compressor covers working pressure of 0.5-1.25MPa, air delivery of 0.18-15.6m³/min and power of 5.5-75kW within a single series. It is one of the wider pressure ranges in the Fusheng oil-injected screw family, focused on energy efficiency beyond Grade 1, ultra-low specific power and on-site usability.

Wide Pressure Coverage Means Easier Selection

Many series concentrate on 0.7-0.8MPa, while SAV+ stretches the range to 0.5-1.25MPa. The low-pressure end suits conveying and blow-off duties that do not demand high pressure, avoiding the energy waste of "high pressure used low"; the high-pressure end covers processes with higher pressure needs such as laser cutting, bottle blowing and high-pressure testing.

Higher pressure is not better. Each step up in compressed air pressure raises energy consumption noticeably. The value of SAV+ is that it lets users select by their truest air pressure within one series instead of being forced to "buy one step higher."

A Wide Air Delivery Span, from Small Sites to Full Lines

The 0.18-15.6m³/min air delivery span is another strength of SAV+. From local supply for a single machine to central supply for a whole line, a matching model can be found in this series. With the 5.5-75kW power range, selection is more finely graded and avoids the awkwardness of "either too big or too small."

PM VSD: Air on Demand, Waste Cut at the Source

SAV+ uses a PM VSD drive. Compared with the load/unload control of a fixed-speed machine, a VSD model's speed varies continuously with air demand: when demand drops, speed falls and less power is drawn, avoiding the waste of running unloaded and venting air. Starting current inrush is small and line pressure fluctuates less, which is easier on downstream equipment.

High-Efficiency Oil-Cooled Motor and Low-Noise Design

The efficiency advantage of a PM motor has to be protected by heat dissipation. SAV+ uses a high-efficiency oil-cooled PM motor that keeps the motor temperature rise within a sensible range, prevents demagnetisation at high temperature and extends life. At the same time, the unit's very low noise lets it be installed directly at the point of use—saving a compressor room, shortening piping, cutting pressure loss and letting the air supply plan follow the production line flexibly.

Vertical All-in-One Structure

SAV+ uses a vertical all-in-one design, with core parts integrated into a compact vertical body: small footprint, high piping integration and a concentrated service side. For factories short on space or frequently rearranging their layout, this "easy to move, easy to place" form is highly practical.

Technical Specifications

Who It Suits

• Factories with a wide spread of air pressures: processes differ in pressure, and one series can cover them all;
• Shops with marked swings in air demand: VSD control is more economical under fluctuating duty;
• Situations needing low-pressure air: the 0.5MPa low end reduces the waste of "high pressure used low";
• Space-tight lines that want air supplied close by: low noise plus a vertical structure make on-site placement easy.

Selection Advice

1. Select by the truest air pressure: don't blindly go high "to leave margin"—the higher the pressure, the more power it costs;
2. Set the model by peak demand: peak demand sets the model size and the fluctuation range sets the control method;
3. Prefer VSD for fluctuating duty: the energy savings from following speed grow with the range of fluctuation;
4. Consider on-site placement too: if close installation is planned, confirm that noise and heat dissipation conditions are met.

Conclusion

Choosing a compressor is hard not because it is difficult to buy one that works but because it is difficult to buy one that fits exactly. With pressure coverage from 0.5-1.25MPa and an air delivery span of 0.18-15.6m³/min, SAV+ leaves that room to the user. Range itself is a form of value.