Buitink Technology has designed and developed the innovative
ZILOO® in order to facilitate working in enclosed spaces
while attached to safety lines or otherwise suspended, and to
reduce physical fatigue. A patent for the ZILOO® has now
been applied for.
The ZILOO® is an inflatable, telescopic tube that
enables you to move and position yourself while suspended in a
silo; for example, during inspection, repair and cleaning work.
In addition to silo inspection and cleaning, the
ZILOO® is also excellently suited for use when
inspecting other enclosed spaces such as wind turbines and rotor
Why use the ZILOO®?
The work of inspecting and cleaning silos is very heavy and
physically demanding, so few people are capable of it. While freely
suspended in a space, one has to somehow move around in order to
clean the entire wall surface. It's for that reason that we
developed the ZILOO®.
Cleaning a silo: extremely heavy and physically demanding
work. To reach every point, the operative has to push off hard and
swing violently back and forth.
Operation of the ZILOO®
The operation of the ZILOO® is very simple and can be
explained in terms of a number of steps.
As an example, we will take a ZILOO® with a starting
length of 3 metres and a maximum final length of 3.3 metres (and a
diameter of 40 cm). In this example, the ZILOO® is used
in a silo with an interior diameter of 3.25 metres (this interior
diameter must always be less than or equal to the final length of
the ZILOO®, and always bigger than the starting
Step1 | introducing the
The ZILOO® is introduced into the silo through a
manhole as a small, folded pack (on a line). This pack is very
light and compact. A ZILOO® that is 3/3.3 metres long
and 40 cm in diameter when deployed measures only 65 x 35 x 35 cm
when folded, and weighs no more than 10 kg. The ZILOO®
can be connected with a hose to a compressed air source (such as a
compressor) that is deployed outside the silo.
Step2 | filling the ZILOO® with
When the ZILOO®, together with the operative, is at the
correct height within the silo, the tool can be pressurised with
air. To do this, you only need to press button 1 on the supplied
compressed air control box. The ZILOO® is now brought to
precisely the right overpressure, so that the tube extends to 3
metres and becomes rigid (and is thus very easy to manoeuvre into
the correct position) but does not yet attain its maximum final
length of 3.3 metres.
Step 3 | raising internal pressure
When the ZILOO® is at the correct position in the silo,
you can press button 2. The internal pressure in the
ZILOO® is raised so that the tube steadily increases in
length telescopically and clamps itself lightly against the silo
wall. The ZILOO® is now fixed in position and will no
Step 4 | raising internal pressure to about 600
After step 3 (you can also proceed immediately to this step after
step 2), you can press button 3. The pressure is now raised still
further to about 600 mbar. This increases the vertical clamping
force of the ZILOO® to about 450 kg (assuming a dry
wall). The ZILOO® is now ready for use. The operative
can now use this for support (or even sit on it) and, with the aid
of the handholds and gripping points installed along the
ZILOO®, move from one side of the silo to the other.
Step 5 | repositioning the
To move the tool again to a different position within the silo,
just press button 1. The pressure will now drop, and the
ZILOO® will shorten from 3.25 metres to 3 metres. The
tool can now be moved to a different position or height, after
which one can press button 2 (or go straight to button 3).
Step 6 | deflating
After use, you can deflate the ZILOO®, roll it up, and
lift it out of the silo through the manhole.
Advantages of the ZILOO®
1. Compact: The ZILOO® is
extremely compact: a tool measuring 40 cm in diameter with a length
of 3.3 metres folds/rolls up into a pack of only 65 x 35 x 35
2. Ultra-light in weight: A
ZILOO® is very light. A complete ZILOO®, with
a diameter of 40 cm and a length of 3.3 metres, weighs no more than
3. No hard or sharp edges: A
ZILOO® is an inflatable product, made of flexible
materials, and has no hard or sharp edges that might damage a silo
4. Reduced physical effort: The
ZILOO® reduces physical effort while working in a silo
or other enclosed space.
Design and possibilities
The ZILOO® is supplied with a compressed air
connection point and control console so that the correct pressure
can be set at the push of a button.
The ZILOO® is also optionally available in an
Bespoke work is always possible, but we offer the following
dimensions and clamping force as standard:
Examples of clamping force (in kg) in final
position, exerted by both ends against the silo wall. This is the
vertical load capacity of the tool, assuming a clean, smooth silo
Standard sizes that are available.
Different sizes are also available on request! The minimum length
is the tube's initial length. The length can be increased steadily
and telescopically until maximum length is attained. An 'x' is
shown in the table when the relevant length in the indicated
diameter is available as standard.
Air and pressure control ZILOO®
If you would like more information about our ZILOO®
or another industrial solution, call us on +31 (0)316-250830 or
email us at email@example.com.
You can also use the contact form below right now, so that we
can contact you: