FASV+-MA PM VSD Screw Air Compressors

Not every plant needs a large air compressor. More often the picture is a single workshop, a few production lines and a handful of pneumatic tools: the air demand is modest, but the expectations for supply stability and for how much the machine "makes its presence felt" are high—it had better not be too noisy, take up too much room, or break down every few days.

The ESSENCE FASV+-MA PM VSD screw air compressor is designed for exactly this tier. It spans five power points from FASV+08A-*MA to FASV+37A-*MA, with power of 7.5-37kW, working pressure of 0.7-1.25MPa and air delivery of 0.42-6.55m³/min. It uses PM VSD starting and direct drive, with noise rated at 68±3 to 72±3 dB(A). As a compressor brand under Fusheng Group, ESSENCE draws on Fusheng Group's established systems for product development and manufacturing, and this shows in its small-power models as well.

Direct Drive: The Detail That Matters More on Small Machines

The drive type of the FASV+-MA is listed as direct drive. The smaller the machine, the more sensitive the share of energy lost in the drive train tends to be—the more intermediate links there are, the more there is to lose. Direct drive makes power transfer between the motor and the airend more direct and the structure simpler, reducing the number of points that need attention and maintenance day to day.

For users who tuck the compressor into a corner of the workshop and want to "install it and mostly forget about it", this design approach is the right fit.

Noise: What Decides Whether a Machine Can Stay in the Workshop

One spec in the data sheet is easy to skip over yet directly shapes the user experience—noise. Across the five power points of the FASV+-MA, noise is 68±3, 68±3, 70±3, 70±3 and 72±3 dB(A) respectively, rising slightly with power.

What this figure means is that it decides whether the unit can be installed close to the point of use. If a separate compressor room has to be built, it brings construction cost, floor space, and the pressure loss and leakage risk of a long pipe run from the room to the point of use. Keep noise under control and these knock-on problems do not arise.

In other words, noise is not just a question of comfort; it directly shapes how the air supply is laid out. If the unit can sit nearby, the piping can be short; if it must be placed far away, pressure loss and leak points increase accordingly.

Five Power Points Covering the 7.5-37kW Small-Machine Range

The power points of the FASV+-MA are 7.5, 11, 15, 22 and 37kW, which together with pressure coverage of 0.7-1.25MPa forms a fairly fine selection ladder. At 0.7MPa, for example, the air delivery of the five models is 0.58-1.15, 0.88-1.75, 1.02-2.55, 1.52-3.80 and 2.62-6.55 m³/min respectively. The steps between adjacent models are small, making it easy to match actual air demand precisely and avoid oversizing.

One point deserves special mention: the voltage/frequency is 220/380V, 60Hz. This differs from the 50Hz supply common in China, so the site power conditions must be verified before selection to ensure the unit matches the grid.

Pressure Steps and Outlet Sizes: Two Details That Are Easy to Get Wrong

The FASV+-MA covers four pressure levels: 0.7, 0.8, 1.0 and 1.25MPa. Taking the 15kW model as an example, air delivery is 1.02-2.55m³/min at 0.7MPa, 0.97-2.43m³/min at 0.8MPa, 0.82-2.05m³/min at 1.0MPa and 0.74-1.85m³/min at 1.25MPa. The higher the pressure setting, the less air you get—if you select only on the "maximum air delivery", that figure actually corresponds to the lowest pressure step.

The air outlet changes as power rises: G3/4 on the three smaller models, G1 on the 22kW model and G1-1/4 on the 37kW model. The step-up in outlet size points to the way the piping should be designed—pipe diameter should match the unit's air delivery; an undersized connection adds pressure loss and leaves the machine "working hard but unable to push the air through". During installation, small models take up little floor space, but room should still be left around the unit for convenient oil and filter changes.

Technical Specifications at a Glance

Who It Suits

• Small workshops and single-machine air supply: modest air demand, but a stable supply is needed;
• Sites with tight space and no room for a separate compressor room: noise is manageable, so the unit can be installed nearby;
• Small production lines with pronounced demand swings: PM VSD starting lets speed track air demand;
• Users who need fine matching across several steps: the five power points form a fine ladder that fits actual demand.

Selection Advice

1. Verify the site power system first: this series is rated at 220/380V, 60Hz, which must match the actual supply conditions;
2. Take air delivery at the target pressure: the figures at 0.7MPa and 1.25MPa differ markedly and cannot be used interchangeably;
3. Factor in the installation location: the noise rating decides whether the unit can be placed nearby, which in turn shapes the piping design;
4. Leave headroom even on small models: air demand may rise as lines are added or equipment is upgraded.

Final Thoughts

Small air compressors are often dismissed as a category with little technical content, but the FASV+-MA shows otherwise: direct drive, noise control and a multi-step power ladder all point to the same goal—letting the machine sit quietly, compactly and reliably where it belongs. For workshops with modest air demand that want to avoid trouble over the long haul, the value of this class of machine lies precisely in these "no fuss" details.