Dustcontrol guide for_construction

The Dustcontrol guide
to cleaner construction

Dustcontrol worldwide.
In 1972, Swedish company Dustcontrol AB began the
production of a range of specialist dust extraction vacuums
designed to capture dust at source and thereby protect
construction workers from the health risks associated with
dust. Since then Dustcontrol AB has developed an innovative
range of high-quality dust extraction systems that have earnt
a worldwide reputation for reliability, ruggedness and simple
effectiveness.
As well as addressing the health and safety issues associated
with dust, and in particular the risk of Silicosis, Dustcontrol
extraction systems greatly improve on-site productivity by
creating cleaner, safer and more profitable working conditions
for every trade on every site.
Since 1966 Dustcontrol UK Ltd have been
providing the UK hire industry with a wide
range of specialist dust extraction vacuums, air
cleaners and extraction guards for virtually
every construction application imaginable
and are now the preferred supplier for hire
companies throughout the UK.
We don’t just supply tough, hard working
tools and equipment from our comprehensively
stocked UK offices. When you buy from
Dustcontrol UK you’ll receive the very best in
technical advice, training and customer support.
Dustcontrol UK Ltd.
Old Barn,Home Farm Business Park,
Church Way, Whittlebury,
Northants NN12 8XS
Telephone:01327 858001
Fax:01327 858002
Maintain your health.
Work related exposure to any sort of dust can never be good
for your health, however exposure to some dusts can cause
serious health problems including dermatitis, asthma, Chronic
Obstructive Pulmonary Disease (COPD) and silicosis.
Working in the construction industry regardless of your trade,
means your risk of being exposed to dust containing a mineral
called silica is increased and with it the potential of developing
a disabling respiratory disease.
Dust can affect more than just
the person creating it
SUBSTANCE % SILICA CONTENT
Brick Up to 30
Concrete,cement,mortar 25 to 70
Tile 30 to 45
Sandstone,gritstone,quartz More than 70
Granite Up to 30
Sand,gravel,flint More than 70
Slate Up to 40
Flint More than 80
Dustcontrol worldwide Maintain your health
www.dustcontrol.co.ukE-mail:sales@dustcontrol.co.uk
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What is Silica?
Silica is one of the most abundant minerals on
earth and found naturally in masonry, stone,
sand and aggregates. It’s also used in the
manufacturing of a huge range of building
materials including bricks, blocks, mortar,
roof tiles and concrete products.
Materials containing silica are
perfectly safe, but when the
materials containing silica
are subjected to everyday
site activities such as
cutting, drilling, grinding
and sanding, very fine
dust particles can be
released into the air.
Silica is used in many
construction products
& materials
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RCS – Respirable Crystalline Silica.
These fine silica dust particles known as Respirable Crystalline
Silica or RCS are so small they cannot be seen with the naked
eye and can remain suspended in the air for hours after being
created. Wind and air movement can also spread this invisible
hazard around a construction site affecting not just the person
who created the hazard but also those working around them
and even people living and working nearby.
These RCS particles are extremely hazardous and extensive or
prolonged exposure to them is known to cause a debilitating
lung disease called silicosis, CPOD including chronic
bronchitis and emphysema.
What is Silicosis?
When you breathe in air
containing dust, the hairs and
mucus in your nose and throat
trap the large dust particles but the
fine RCS particles are ‘respirable’
meaning they are carried deep into
the lungs where oxygen is extracted from
the air. The RCS particles are deposited here causing
inflammation and scarring known as silicosis, which
makes breathing more difficult and increases the risk of
developing lung infections and lung cancer.
Silicosis can vary in severity from mild to severe
depending on the levels of exposure. Typically, the
symptoms do not develop until after twenty or more
years of constant exposure and often after retirement.
The early symptoms are shortness of breath, a dry
cough and a general feeling of ill health and as the
disease progresses the symptoms become more severe.
Maintain your health
Your legal responsibilities.
Because RCS carries a health risk it has been classified as
a hazardous substance under the Control of Substances
Hazardous to Health Regulations (COSHH) 2002. These
regulations place obligations on employers to carry out a
sequence of measures which are fully explained in their leaflet
“COSHH: A brief guide to the Regulations” What you need
to know about the Control of Substances Hazardous to Health
Regulations 2002 (COSHH).
The COSHH regulations requires
employers to:
■ Assess the risks to health and decide what
controls are needed;
■ Use those controls and make sure workers
use them;
■ Make sure the controls are working properly;
■ Inform workers about the risks to their health;
■ Train workers.
These regulations are all about controlling exposure
so personal protective equipment (PPE) should only
be supplied and used where risks to health and safety
cannot be adequately controlled in other ways.
The COSHH Regulations also specify the maximum
level of RCS that you can be exposed to during a
working period and is known as a ‘Working Exposure
Level’ or WEL’. The current WEL is set at 0.1 mg/m3
This is an almost impossible amount to imagine but
one mg is equivalent to one cubic millimeter of water
and just 0.1mg is absolute maximum weight of RCS
for every cubic metre of air that you can be exposed to
in a 8-hour work period (WEL)
RCS particles become
embedded in the alveoli deep
within the lungs
Maintain your health
* There is no effective treatment for silicosis.
The dust you cannot see is the
most dangerous
An amount of RCS dust smaller
than a match head inhaled
over a full shift can put your
health at significant risk
* REMEMBER: Follow the COSHH Regulations
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www.dustcontrol.co.uk

Controlling the risk makes good
business sense too.
There are many tasks on construction and work sites that can
potentially create hazardous RCS dust and employers have a
legal obligation to assess, avoid or minimise these risks under
the COSHH regulations. By meeting these obligations you not
only protect the health of everyone on the site but also make a
job, or site, more productive.
A cleaner site improves productivity
& worker co-operation.
There are no benefits to any tradesman having to start work
by cleaning up someone else’s dust before they can start their
own job. Equally, clouds of dust from someone else’s work can
make a job difficult or even unsafe due to restricted vision and
is extremely unproductive.
A cleaner site gives greater customer
satisfaction.
Hospitals, offices, schools and retail areas are all sensitive
environments where fine dust can create damage to IT
equipment, machinery, stock and people. Once fine dust has
been created it’s difficult to remove completely and can be
costly for both you and your customer.
How to minimise and control dust.
If your task creates hazardous dust you will need to carry out
a risk assessment and find the most effective way of removing
or minimising the risk.
Water suppression on petrol cut-off saws is a simple way
of controlling dust on outdoor work, either by using a
pressurised water container or by a hose connected to mains
water supply or bowser. A minimum flow rate of about
0.5litre per minute is required to optimise dust suppression
and this method is particularly useful for civil engineering
and highway work.
Water suppression creates a dust slurry, which may be a
potential slip hazard, so its good practice to collect and
remove the slurry using a Dustcontrol professional wet
pick-up vacuum.
However water suppression is often unsuitable for work
inside buildings and more importantly, it’s not compatible
with most electric power tools.
In these situations the use of a specialist dust extraction
vacuum and source extraction can create a safe, clean and
more productive working environment. Source extraction
means capturing the dust as close to the point it is created
by using a specialist vacuum cleaner and a hose connected
to a purpose built guard attached to the power tool. With
the right vacuum and guard it is an extremely effective
way of removing dust and collecting it safely for disposal.
Most ordinary site vacuums just don’t have the technical
elements required to safeguard your health and will in fact
leave the most dangerous small particles of RCS in the air
you breathe.
Cleaning up dust is
time-consuming
and expensive.
Good dust control measures
make good sense by avoiding
the creation of dust in the
first place,thereby reducing
cleaning-up time and expense.
Greater tool and
equipment life
Using the correct dust control
equipment in conjunction
with your power tools can
keep them working longer
and more effectively meaning
less downtime and increased
productivity.
Controlling risk Controlling risk
A water flow rate of 0.5 litres
per minute optimises dust
suppression
* It’s important to note that ordinary construction vacuums may not have
the important design features found in Dustcontrol extraction vacuums
and therefore may not be suitable for dust extraction.
Professionalism is taking pride in a clean site,improving productivity and
worker co-operation while safeguarding the health of everyone.*
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Extracting dust at its source
What makes Dustcontrol
vacuums different?
Capturing the dust at source – extraction guards
Whatever power tool you are using it’s vital that you have
the correct suction casing to ensure the effective collection of
harmful dust. The Dustcontrol range of lightweight suction
casings is designed so as not to restrict the use of the power
tool and includes casings to fit mini-grinders, grinders,
sanders, drills, demolition hammers and breakers. There are
even connectors that allow two power tools to be connected
to the same vacuum at the same time for efficient working
Many larger tools such as floor grinders and surface
preparation machines are designed with dust guards and
spigots for connecting to a dust extraction vacuum and
Dustcontrol manufacture a wide range of spigots and
adaptors to ensure you have a method of connecting almost
every machine.
Dustcontrol-Triple stage filtration.
Perhaps the most important element of any Dustcontrol
dust extraction vacuum is its three-stage filtration
system and it’s a key feature that sets it apart
from other machines.
Stage 1 – Cyclonic filtration
As the airborne dust is carried at high velocity into the body
of the vacuum the powerful motor ‘spins’ the air and
centrifugal force ensures the heaviest coarse particles
of debris are thrown out to the sides of the cyclone
body where they fall into the collection bag below. This design
gives long lasting performance.
Stage 2 – Main Filter
Once the heavy particles have been removed by cyclonic
filtration, the air is drawn through a conical pleated filter that
removes over 99% of the remaining dust particles. A pleated
filter has a very large area in relation to its physical size allowing
the extraction units to be compact in relation to the filter area
they contain.
Stage 3 – HEPA Filtration
The HEPA filter is the final stage in the Dustcontrol filtration
sequence and it’s this part of the process that removes the
smallest particles that can be the most dangerous to your health.
Under EN-1822-1 HEPA filters are classified according to their
efficiency with different levels ranging from H10 to H14.
Dustcontrol uses H13 grade, which can separate up to
99.995% of the particles of between 0.15 and 0.30 µm
(micron) in size, which are the hardest particles of all to
capture. Dust extraction vacuums are also tested according
to IEC.60335-2-69 and classified into one of three categories
- L for Low, M for Medium and H for High. All Dustcontrol
extraction vacuums meet the highest machine class ‘H’ standard
for hazardous dusts due to their design and the 99.995% Hepa
13 filtration efficiency. (Units for use with asbestos require
further approvals).
Drills and breakers can be
coupled to dust extraction
Superior filtration Superior filtration
Surface preparation tools are
often designed with inbuilt
source extraction guards
Comparing notes:
■ A strand of human hair is
approximately 100 µm in
diameter
■ Particles smaller than 10
µm are invisible to the
naked eye
■ A particle of tobacco
smoke is on average
between 0.01 to 10.0 µm
■ Most bacteria are between
0.35 to 10.00 µm
Extraction guards are available for
over 300 power tools
HEPA 13
filters
are used
throughout
the entire
Dustcontrol
range
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Pulse cleaning.
Inevitably after heavy use the main filter on a Dustcontrol
dust extraction vacuum will become partially blocked,
especially when large volumes of fine concrete dust are
being collected. With Dustcontrol dust extraction vacuums
a warning light tells you when this has happened and
prompts the operator to carry out a simple process
known as pulse cleaning, without switching off
the machine. Pulse cleaning is done by blocking
the inlet, then opening and closing a flap-valve,
which reverses the flow of air through the main filter
dislodging the particles of dust. This is quickly done with
very little working time lost.
Dust-free bag exchange.
Dustcontrol extraction vacuums have a dust-free
bag exchange system that means the dust-
collecting bag can be replaced simply without
exposing the operator to harmful dust particles
and then safely disposed of.
Dustcontrol extraction vacuums.
Choosing the right tool for the job
DC 1800
The DC 1800 is the ideal vacuum for general cleaning work
and source extraction from handheld power tools including
mini-grinders (with up to 125mm suction casings), jigsaws
and small drills. Being extremely portable the DC 1800 is the
perfect vacuum for repair and light refurbishment work in
offices, shops and buildings where space is at a premium and
minimal dust, noise and disruption are vital.
Easy maintenance DC 1800
DC 1800
A highly portable
machine powerful
enough for dust
extraction
TECHNICAL DATA – DC 1800
Weight 10 kg
Flow at open 190 m3
/h
inlet,max
Neg pressure 115/230V
21/24 kPa
Power 115/230V
consumption 1200/1400W
Noise level 68 dB(A)
Dust free bag replacement Reverse pulse filter clean
Three point dust extraction
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Dustcontrol extraction vacuums.
Choosing the right tool for the job
DC 2800C
A wide range of tradesmen engaged in refurbishment,
M & E and general construction activity find the DC 2800c
the perfect source extraction vacuum for use with a broad
range of handheld power tools including dry diamond core
drills, mini-grinders, circular saws and sanders. Weighing just
14kg, it’s extremely portable and easy to manoeuvre making it
equally useful as a general purpose cleaning vacuum.
DC 2800C DC 3800 Twin
TECHNICAL DATA – DC 2800c
Weight 14 kg
Flow at open 190 m3
/h
inlet
21/24 kPa
Power 115/230V
DC 3800c Twin – With integrated pre-separator
Floor grinders and surface scabblers can create exceptionally
high volumes of fine dust and coarse debris that can quickly
overload most extraction vacuums. The DC 3800c Twin
overcomes this problem, giving highly productive source
extraction by separating and removing 80 – 90% of the
coarse particles of dust into the first cyclone or, pre-separator.
The remaining dust is then removed by the second cyclone
containing the main and HEPA filters. The airflow capacity
of this machine is powerful enough for most concrete floor
grinding machines with a grinding head diameter of up to
800mm, yet it can still be easily moved and transported.
DC 3800c
A combination of two powerful motors, high cyclone capacity
and large filters makes the DC 3800c range ideal for source
extraction jobs where large volumes of dust are created.
Whether you are sawing, drilling, grinding or breaking,
the extensive range of source extraction guards and bellows
available means the DC 3800c can be used in conjunction
with wall-chasers, surface preparation equipment, saws, drills
and breakers for highly productive, dust-free working.
TECHNICAL DATA – DC 3800c
Weight 35 kg
Flow at open 320 m3
/h
inlet
Neg pressure, 115/230V
maximum 21/24 kPa
Power 115/230V
Noise level 115/230V
75/70 dB(A)
TECHNICAL DATA –DC 3800c
Twin – With integrated
pre-separator
Weight 54 kg
Flow at open 320 m3
/h
inlet
maximum 21/24 kPa
Power 115/230V
Noise level 115/230V
75/70 dB(A)
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DC AirCube
On any construction or refurbishment project there will
inevitably be airborne dust created by people, materials and
processes that cannot be controlled by source extraction.
This dust can be particularly problematic in sensitive areas
like hospitals, schools, offices and retail areas where the
minimisation of dust is essential.
The DC AirCube air cleaner can be extremely effective in
these applications and works by circulating the air in a room,
or, enclosed work area, through a highly efficient HEPA filter,
cleaning the air and removing the hazardous airborne dust.
By installing a DC AirCube within an sealed work area and
ducting the Aircube’s exhaust through the screening, a negative
pressure can be created within the work area to further
enhance their effectiveness in controlling airborne dust.
DC 5800c AirCubes
DC 5800c
On large or long-term construction sites there may be a
demand for dust extraction in separate areas or on different
floor levels, all at different times. To avoid having multiple
machines on site or, to be constantly shifting one machine
around, the installation of a centrally located DC 5800c and a
temporary ducting system can provide powerful, ducted airflow
for up to four multiple users, depending on their applications.
Cyclone separator top
When really large amounts
of dust are produced,a DC
5800 can be complemented
with a cyclone separator top
mounted directly onto a 200
litre standard barrel.Other pre-
seperators are also available to
meet your disposal
needs.
Additions
Tools with source extraction can
be simply and quickly connected
into the suction network,with
higher levels of productivity
ensuring an entire project can
become a dust free working
environment.
The DC 5800c can also be used for source extraction in tough
work environments where high volumes of dust are generated,
such as floor grinding. The use of in–line pre-separators to remove
the bulk of the dust ensures the performance of the filtration
system is maximised and high productivity is maintained.
TECHNICAL DATA –DC 5800c
H x W x L (mm) 1920 x 760 x 1150
Weight 170 to 210 kg
Flow at open inlet 470 to 800 m3/h
Negative pressure,max 28 kPa
Motors from 5 to 9,2 kW
Pre-separators can also play an important role where the
collected materials are required for re-use. A typical example was
an historic building restoration project where, old lime mortar
was mechanically removed from joints in walls using
grinders with source extraction
guards. The old mortar was
recovered in a Dustcontrol
pre-separator, recycled
and re-used in the
new mortar ensuring
the integrity and colour
of the re-pointing
was maintained
and provided an
environmentally
sustainable
solution.
DC AirCube
Weight 13 kg
Flow at open 400 m3
/h
outlet
Neg pressure, 400 Pa
maximum
Power 230V,170W/
consumption 115V,190W
Noise level 48 dB(A) spd 1
67 dB(A) spd 2
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Temporary centralised
extraction system
By circulating the air through a highly
efficient HEPA filter,the air in the room is
cleaned from airborne dust.
*
AirCube pictured in print press
factory

Useful information and contacts:
www.hse.gov.uk
www.coshh-essentials.org.uk
www.opsi.gov.uk/stat.htm
Health & Safety Executive
Infoline - 0845 345 0055
DUSTCONTROL UK LTD.
Old Barn,
Home Farm Business Park,
Church Way, Whittlebury,
Northants NN12 8XS
sales@dustcontrol.co.uk
01327 858001
01327 858002
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