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| LENTO Series |
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| Oil-free, water-injected screw compressors |
| Capacity:
0.24 - 4.55 m3/min |
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...Intelligence ...Innovation ...Reliability |
clean compressed air, economically produced:
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- 100% oil-free compressed air
- maximum flexibility through variable and fixed speed
- enormous energy-saving potential
- robust and quiet
- safe in operation by proven design
- clear, simple layout for ease of service
- environmental friendly operation
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Maximum benefits for our customers:
This premise holds true for everyone at ALUP.
Our products benefit from the latest techniques in research and
development and are manufactured according to ISO 9001.
Customer
satisfaction and quality is our highest priority. They fulfil
all acceptance criteria according to ISO 1217 – 3 annex C.
Numerous variations and options allow these products to be
installed in nearly every compressed air application. In
addition, special versions can also be offered. |
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| intelligent compressed air ... everywhere • • • intelligent compressed air ... everywhere |
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Intelligent technology at the point of delivery! |
The
LENTO concept offers technological advantages with no
compromise:
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High
quality, 100% oil-free compressed air is demanded not
only in pharmacy, foodstuffs, electrical engineering and
medical industries, but is very important in all
applications where products of highest quality are
produced. |
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Only water, the
most natural of all raw materials, is used in the
compression process. The result is:
- clean, environmentally friendly compressed air
with no oil; dirt and other dust particles drawn in
are being cleaned by the water treatment system
- clean condensate (pure water) can be fed
directly into the drains system
- lowest temperatures during compression through
optimum heat transfer via the water and this with
minimum energy consumption
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The LENTO
range of speed-controlled direct drive compressors
provide optimum economy by:
- exactly matching the flow from the compressor to
the compressed air requirements at any time
- avoidance of switching cycles and the consequent
costly no-load periods
- energy-saving start-up, with no current surge
- freely selectable operating pressure from
5 – 10 bar
The reduced pressure produced saves you money
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The combination of the
"Energy-saving duo" is unbeatable:
- the LENTO with "fixed speed" covers the
basic load for a compressor station
- the LENTO with "variable speed" takes up any
additional requirement, e. g. peaks in consumption
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The integrated dryer:
- ensures minimum compressed air output
temperatures, i. e. a separate dryer may not be
required
- reduces costs and simplifies installation as no
additional water is required
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Minimised service and
maintenance costs compared with other oil-free
compression systems with fewer service items
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Construction, Technology, Highlights |
 ced:
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Air end
– single stage, water-injected air end
– bronze alloy stator
– polymerised ceramic rotors
– lowest compression temperatures less than 60°C
Motor
– highly efficient drive motor
– IP 55 protection class F
– compact, powerful and safe in operation designed for maximum cooling
plus-Version with integrated dryer
– provides dry compressed air at the input to the compressed air network |
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Total water quality
– Reverse Osmosis system integrated
– Generates Water from a standard mains supply
– Reverse Osmosis water protects the unit and avoids bacteria growth
Direct drive
– Highly effective power transmission
– optimum performance
SCD frequency converter
– fully integrated system
– conforms to EMC directives
Air Control
– the compressor‘s intelligence
– thinks, monitors and records |
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| Data, Facts, Analyses |
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Type |
Operating
overpressure
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Flow* to
ISO 1217 (Appendix C-1996) |
Motor-rated
output |
Length |
Width |
Height |
Weight |
| variable speed |
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bar |
min.
(m3/min) |
max.
(m3/min) |
kW |
mm |
mm |
mm |
kg |
| 22 |
5 – 10 |
0.81 |
3.50 |
22 |
843 |
1105 |
1795 |
595 |
| 37 |
4,5 – 10 |
2.52 |
6.48 |
37 |
2435 |
965 |
1840 |
1090 |
| 55 |
4,5 – 10 |
2.51 |
9.65 |
55 |
2435 |
965 |
1840 |
1090 |
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| fixed speed |
11 |
5 – 10 |
- |
1.81 |
11 |
843 |
1105 |
1795 |
535 |
| 15 |
5 – 10 |
- |
2.52 |
15 |
843 |
1105 |
1795 |
553 |
| 18 |
5 – 10 |
- |
3.10 |
18.5 |
843 |
1105 |
1795 |
577 |
| 22 |
5 – 10 |
- |
3.53 |
22 |
843 |
1105 |
1795 |
625 |
| 30 |
7,5 – 13 |
- |
5.31 |
30 |
2435 |
965 |
1840 |
1121 |
| 37 |
7,5 – 13 |
- |
6.43 |
37 |
2435 |
965 |
1840 |
1193 |
| 45 |
7,5 – 13 |
- |
7.71 |
45 |
2435 |
965 |
1840 |
1216 |
| 55 |
7,5 – 13 |
- |
9.16 |
55 |
2435 |
965 |
1840 |
1273 |
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* V referred to operating pressure of 7,5bar
water-cooled (air-cooled optionally) |
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| Lento, the system solution for: |
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LENTO, the oil-free compressed air
provider as a free-standing system or as
a multi-unit solution for economical, oilfree
compressed air production in the medium
output range.
The benefi ts for you: cost-effective, operationally safe with low maintenance compressed air production. |
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LENTO, the oil-free, speed-controlled
compressed air provider is best suited to take over in existing oil-free compressed air stations as the master “command” system.
The benefits for you: The entire station becomes more economical immediately, and peaks in consumption can be buffered
by “governing”. |
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LENTO, the oil-free compressed air producer,as safe alternative to replace
oil-lubricated with oil-free compressed
air cost-effectively in critical sectors
(such as food, chemicals and
pharmaceuticals).
The benefi ts for you: high security for your
products (no oil present) and fewer waste
disposal problems |
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| intelligent compressed air ... everywhere • • • intelligent compressed air ... everywhere |
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| Products, Concepts, Solutions |
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Built on the needs of the customer
For almost 100 years, we at ALUP have
produced quality air compressors.
With our innovative system concepts
we
offer customised solutions for almost all
applications.
Our endeavour lies not only in supplying
compressors, we offer ourselves as a |
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competent system provider, who is able to
offer solutions to all users of compressed air.
That does not only apply to the consultation
and installation phase of your new compressor(s), but naturally continues in all areas of
service, maintenance
and visualisation.
Made by Experience! |
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Screw
compressors
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Piston
compressors
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Blower
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Turbo
compressors
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Complete
accessories
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Control,
regulate, monitor |
constant speed
2.2 – 500 kW/
4 – 13 bar
variable speed
controlled and
direct drive
5.5 – 260 kW
4 – 13 bar
oil-free, with
water injection
15 – 55 kW/
4 – 13 bar |
oil-free,
up to 10 bar
0.75 – 12 kW
for normal
pressure up
to 10 bar
1.5 – 15 kW
for medium
pressure up
to 15 bar
1.5 – 15 kW
for high pressure
up to 40 bar
2.2 – 45 kW
as a booster for an
input pressure up
to 15 bar and an
output pressure
up to 40 bar
2.2 – 30 kW |
at constant and
fixed speed
0.1 – 250 kW
50 – 1000 mbar |
upon
request |
refrigeration
dryers
0.27 – 100 m3 /min
desiccant dryers
0.08 – 145 m3/min
activated carbon
adsorbers
0.08 – 145 m3/min
filters,
all particle sizes
0.5 – 225 m3/min
complete
condensate
management up to
120 m3/min |
lead-lag control
consumption dependant
control
visualisation
(we bring your
compressed air
to the PC)
tele-monitoring
(the hotline of
your compressed
air station) |
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