Ultra-low frequency speed
control technology far
surpasses standard VSD
compressor systems.
Capable of lower than 15Hz
operation, this system is
truly capable of constant
variable pressure operation
and significant energy
saving.
HIGH RELIABILITY
USoft-start feature allows
for little or no impact on the
power supply system and
marginalises mechanical
wear and tear up on start-up
Leakage is always present
in any air system. At full
pressure a good system can
loose 0.2Mpa. Zerlion VSD
machines can reduce that
loss by up to 25% simply by
supplying the air pressure
that is required.
MUTE ENVIRONMENTAL PROTECTION
Advanced Vector variable
frequency control reduces
vibration and noise. The unit
can be used without the
requirement for a special
room. This means saving
of all resources required to
install a machine in an
external location such as
pipe and power lines and
land. Oil exhaust output is
lower than 3ppm thus
negating enviromantal
impact.
ENERGY SAVING 30% & LONGER LIFE
Utilising frequency control
for the cooling fan and
drive motor allows for up to
30% energy savings. This
translates into less frequent
servicing of the screw
compressor thus further
significant savings are
achieved over the life of the
machine.
FEATURES
1. Two-stage compression reduces the compression ratio of each stage, reduces internal leakage, improves volumetric
efficiency, reduces bearing load, and increases the life of the air end.
2. Two-stage PM VSD replaces single-stage compression, and the displacement is increased by nearly 15%, which can
achieve an additional 15% energy saving effect.
3. The rotor adopts the latest patented rotor UV profile, which has been refined by more than 20 procedures to ensure the accuracy, reliability, and effectiveness of the rotor profile.
4. Two-stage PM VSD air compressor mainframe is more efficient and more energy-saving. It can save up to 40%
energy compared with ordinary industrial frequency machines. Calculated at 8000h/unit/year, it can save electricity
costs 30,000 USD per year.
ADVANTAGE
1. More Energy Efficient
Two-stage PM VSD rotor is directly driven through the gears, and each stage of the rotor can obtain the best speed.
The Air end is always running at the best energy-saving speed. The frequency conversion soft-start reduces the energy
consumption of the air compressor during startup. By controlling the pressure between stages, the compressor always
works at the best efficiency point under different working conditions. Compared with single-stage fixed speed air
compressor, in principle, two-stage PM VSD air compressor can save 40% energy.
2. More Stable
There is no mechanical transmission failure, the motor, and the male rotor adopt an integrated shaft structure, and there
is no need for coupling and gear transmission, eliminating the hidden danger of coupling and gear failure.
3. More Efficient
PM VSD motor+ no transmission efficiency loss.
PM VSD motor has the advantages of energy-saving and excellent performance.
The one-piece structure can reduce the efficiency loss of coupling and gear.
4. More Comfortable
Low noise and low vibration. No motor and bearing noise, no gear noise, no coupling noise.
5. More Compact
The PM VSD motor is small in size, and the integrated structure saves space.