V.Brøndum RONDA 2800H User manual

RONDA®
2800H
IMPORTANT!
Read this manual before you operate the machine.

User Manual - English
V. Brøndum A/S RONDA®2800H Page 2

User Manual - English
V. Brøndum A/S RONDA®2800H Page 3
Preface
The user manual is to ensure a secure operation of the vacuum cleaner, and to ensure that the user is in no
way uncertain as to the use. The manual must be stored near the vacuum cleaner.
Does any uncertainty arise as to the use of the vacuum cleaner or the material collected, the work should be
stopped until all questions have been cleared.
Pictures and drawings are for illustrative purpose and will make the understanding of the manual easier.
In the introduction the user manual will give a survey of the most important safety aspects. Then it will be
explained how the vacuum cleaner is built up, and how to operate it in general.
Chapter 3 ”Technical Data” provides information about function, performance during normal operation and
machine specifications.
Chapter 4 “Composition – Structure –Operation” provides more details on the composition and the operation
of the vacuum cleaner.
Maintenance of the vacuum cleaner is described in chapter 6 “Maintenance and Troubleshooting”.
Information about repair of minor malfunctions can also be found in chapter 6 “Maintenance and
Troubleshooting”.
The spare parts list with ”exploded” drawing of the vacuum cleaner can be used for the ordering of spare parts
and also as an assembly instruction in connection with the replacement of parts.
Finally the user manual contains an EU Declaration of Conformity, information and references to more
information and also the contact information.
Before you use the vacuum cleaner you MUST read the user manual.
The user manual must be kept readily available for all users.

User Manual - English
V. Brøndum A/S RONDA®2800H Page 4
1. Introduction 5
General Description 5
2. Safety Precautions / Warnings 7
2.1 Warning Symbols in the User Manual 7
2.2 Warnings 7
2.3 Safety Precautions / Disposal. 8
2.4 Personal Protective Equipment 10
2.5 Training and Qualifications of the Operator 10
2.6 Danger, if the safery instructions are not followed 10
2.7 Occupational Safety 10
2.8 Safety rules for Operator and Service People 10
2.9 Safety Ruler for Maintenance, Inspection and Repair 11
2.10 Safety Instructions 11
3. Technical Data 13
3.1 In General 13
3.2 Technical Specifications 14
3.3 Mode of operation 15
4. Composition - Structure - Operation 16
4.1 Versions of RONDA® 2800H and use 16
4.2 Description of the main parts 19
5. Assembly 23
5.1 Mounting of Longopac flange for dispenser 23
5.1.1 Mounting of Longopac in dispenser 24
5.2 Mounting of hose for vacuum 28
5.3 Transport 30
6. MAINTENANCE and TOUBLESHOOTING 33
6.1 Cleaning and Maintenance 33
6.2 Maintenance of the Motor Top 33
6.3 Change of Filters 34
6.4 Replacement of the HEPA-filter (Product No. 84.67.5007) 35
6.5 Troubleshooting 36
7. APPENDIX 37
7.1 EU Declaration of Conformity 37

User Manual - English
V. Brøndum A/S RONDA®2800H Page 5
1. Introduction
General Description
The RONDA®2800H has been designed to be adaptable to the user’s needs.
The machine is composed of a basic module: A frame with suction motors / motor top and HEPA filter and also
pre-filter.
The basic module can be used for various tasks, as the collection part can be replaced as required.
Large suction power –3 motors
Multi-tube filter technology continuous suction
power
H-class
Cyclone effect
Filter cleaning during operation
Static electricity dissipation
Copes with both cement and wood dust
Flexible and thought-through collection
oLongopac
oContainer
Possibility of emptying during operation
Possibility of dust-free emptying
Easy to handle
Robust metal frame with large wheels
Telescopic system for low transport height
Hour meter
The basic module cannot be used alone.
The user must choose which collection method suits his needs best.

User Manual - English
V. Brøndum A/S RONDA®2800H Page 6
The RONDA®2800H is designed to fit in a delivery/box van. The front bar makes it easy to raise the machine
to operation position and lower it to transport position, where the height of the machine is no more than 1500
mm (1.5 m).
REMEMBER: Always lock the transport clips of the machine during transport.
Depending on what the machine is to be used for, you can choose the following variants,
1) Collection in a 40 litres container
2) Collection in a 65 litres container
3) Collection in Longopac
4) Collection in Longopac with hose for vacuum
5) Collection with flap valve and Longopac
6) Collection with flap valve, Longopac and hose for vacuum.
See a further description of the different models in chapter 4.

User Manual - English
V. Brøndum A/S RONDA®2800H Page 7
2. Safety Precautions / Warnings
Show responsibility towards other people when using the vacuum cleaner.
Follow the instructions of this user manual during use or maintenance of the vacuum cleaner.
2.1 Warning Symbols in the User Manual
Particularly important instructions concerning the safety, which may cause danger if they are not followed,
have been marked with a symbol.
This symbol is used for safety instructions, the non-observance of which could cause danger to the
personnel.
This symbol warns the user that the non-observance of the instructions could lead to harm to the
device and its functions.
2.2 Warnings
This vacuum cleaner has been designed for collection of dry materials only. NOT for the suction of
liquid.
This vacuum cleaner has not been designed for collection of conductive dust.
DO NOT USE THE VACUUM CLEANER WITHOUT A PROPER GROUND CONNECTION. This
vacuum cleaner has been designed to be used in an outlet with ground connection. It is the user’s
responsibility to make sure that the outlet has ground connection.
Electric vacuum cleaners may develop static electricity during use.
The appropriate filters have to be correctly placed before use.
Never collect something burning or smoking, such as warm ashes, cigarettes or matches.
The container should be clean and dry before you use the vacuum cleaner.
This vacuum cleaner has been designed for indoor use only.

User Manual - English
V. Brøndum A/S RONDA®2800H Page 8
2.3 Safety Precautions / Disposal.
This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction
concerning use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.
The vacuum cleaner is NOT approved for collection of flammable, explosive, poisonous or extremely
health hazardous dust, fluids or gasses.
RONDA2800H can be used for collection of dust hazardous to health according to CEI/IEC 60335-2-69
Annex AA, dust class H.
The user must ensure that the vacuum cleaner is adjusted to the task and that regulatory requirements
are met.
When collecting dust hazardous to health you must use a filter bag and a plastic sack for dust-free
emptying.
Avoid damaging the supply cord. When replacing the supply cord, only use an original supply cord (see
the spare parts list). V. BRØNDUM A/S, an authorized V. BRØNDUM A/S dealer or an equally qualified
person must carry out the replacement in order to avoid danger. Regularly check the mains connection for
damage, such as fissures or ageing. If damage is found, the supply cord must be replaced before further
use.
The vacuum cleaner must be connected to the mains voltage with a reliably operating grounding (HFI or
HPFI circuit breaker).
The plug must be removed from the power supply before any repair or maintenance operations –also
cleaning.
RONDA2800H must be connected to 230 V power supply. Make sure that the voltage and safety fuse of
the power supply correspond with the data of the data plate and the information given in this manual.
The mains socket of the vacuum cleaner is to be used only for the purposes specified in this user manual.
In addition to the use as an industrial vacuum cleaner, this machine is also suitable for commercial use,
e.g. in hotels, schools, hospitals, factories, shops, offices and rental businesses.
Before use the operators should be provided with information, instruction and training for the use of the
appliance and the substances for which it is to be used, including the safe method of removal and
disposal of the material collected.
For user servicing, the appliance must be dismantled, cleaned and serviced, as far as is reasonably
practicable, without causing risk to the maintenance staff and others. Suitable precautions include
decontamination before dismantling, provision for local filtered exhaust ventilation where the appliance is
dismantled, cleaning of the maintenance area and suitable personal protection.
In the case of class H appliances the outside of the appliance should be decontaminated by vacuum
cleaning methods and wiped clean or treated with sealant before being taken out of a hazardous area. All
the appliance parts shall be regarded as contaminated when removed from the hazardous area and
appropriate action taken to prevent dust dispersal.
The manufacturer, or an instructed person, shall perform a technical inspection at least annually,
consisting of, for example, inspection of filters for damage, air tightness of the appliance and proper
function of the control mechanism. On class H appliances the appliance filtration efficiency should be
tested at least annually, or more often, according to national requirements. The test method that may be
used for the verification of the appliance filtration efficiency is given in AA.22.201.2. If the test will not be
passed, it must be repeated with a new essential filter.

User Manual - English
V. Brøndum A/S RONDA®2800H Page 9
When carrying out service or repair operations, all contaminated items, which cannot be satisfactorily
cleaned, are to be disposed of. Such items shall be disposed of in impervious bags in accordance with
any current regulation of the disposal of such waste.
The upper part of the motor top is a non-dust proof compartment, and when cleaning, the covers of this
compartment are removed by loosening the screws fixing the covers.
IMPORTANT! The motor top must not be covered, when the vacuum cleaner is in use.
IMPORTANT! The motor top must be protected during transport, as described.
RONDA2800H is classified H in accordance with the requirements of the EN 60335-2-69 Annex AA for the
collection of dust hazardous to health.
RONDA2800H is also in accordance with the Machinery Directive (2006/42/EC).
Three labels are included. One in Danish, one in English and one in French.
The standard language of the label on the machine is German. Therefore the label with the language of the
user country is to be placed upon the H-label with the text as shown above.
WARNING: This appliance contains dust hazardous to
health. Emptying and maintenance operations, including
removal of the dust collecting means, must only be
carried out by authorized personnel wearing suitable
personal protection. Operate only after the full filtration
system has been fitted and checked.
H
H

User Manual - English
V. Brøndum A/S RONDA®2800H Page 10
2.4 Personal Protective Equipment
You must wear personal protective equipment adapted to the task.
Be aware that the handling, operation and emptying of the machine can cause situations where it can be
necessary to use for instance
Eye protection
Hearing protection
Work gloves
Respirator
The guide lines for the material being worked with and the internal guide lines for the use of personal
protective equipment must be followed.
2.5 Training and Qualifications of the Operator
The operator that uses, maintains or inspects the vacuum cleaner must have the necessary qualifications.
The operator must rehearse the operation and maintenance in order to obtain a routine. If the operator has not
got the sufficient qualifications, the necessary training must be implemented.
If the safety instructions are not followed, there may be danger to the operator and damage to the
environment.
If the instructions have not been followed, no claim for damages can be made.
2.6 Danger, if the safery instructions are not followed
If the instructions are not followed, the following can happen:
Failure of important machine operations.
Defects in connection with maintenance.
That persons are exposed to the consequences of electrical and mechanical errors.
2.7 Occupational Safety
The safety instructions of this manual, the national regulations for the prevention of danger and the internal
guidelines for the performance of the work must be followed.
The safety guards of the motor top may not be removed during operation.
If substances dangerous for the environment are spilled, these are to be removed in such a way that
there is no danger to persons or the environment. Follow the current guidelines for the collection and
handling.
The risk of electrical hazards must be removed.
2.8 Safety rules for Operator and Service People
It is the operator’s responsibility that the maintenance, inspection and repair are made by qualified service
people only. The service people must study this manual carefully.

User Manual - English
V. Brøndum A/S RONDA®2800H Page 11
Maintenance may only be carried out when the vacuum cleaner has been stopped, and the power
disconnected by pulling the plug out of the socket.
The procedure of stopping, emptying and cleaning the vacuum cleaner must be observed.
The safety guards of the motor top must be remounted immediately after the completion of the
maintenance work.
Before starting the vacuum cleaner again the instructions of this manual must be followed very
carefully.
2.9 Safety Rulesfor Maintenance, Inspection and Repair
You are not allowed to make any alterations to the vacuum cleaner without permit from V. BRØNDUM A/S. For
safety reasons you are allowed to use original spare parts only. V. BRØNDUM A/S cannot be held responsible
if unoriginal spare parts have been used. The vacuum cleaner has been manufactured in accordance with the
relevant norms and standards. Repair and replacement of electrical parts must be performed by authorized
personnel. If not, considerable danger to the operator may occur.
We can only guarantee for safety and healthiness in connection with this machine, if the instructions of this
manual are observed.
If problems, such as breakdown of the machine should arise, you are not allowed to use the vacuum cleaner.
Contact V. BRØNDUM A/S on [phone].
This manual contains all the necessary information about operation and maintenance. The guarantee
becomes void, if the instructions of this manual are not observed.
2.10 Safety Instructions
1. Keep the working area clean. Slippery and greasy surfaces increase the risk of accidents.
2. Be aware of the surroundings. Do not expose the vacuum cleaner to rain. Do not use the vacuum
cleaner in moist or wet surroundings. Do not use the vacuum cleaner near flammable gasses or
liquids.
3. Protect against electrical shock.
Avoid bodily contact with earthed building parts, such as radiator, water pipes and the like and also
electrical appliances with their own earth connection.
4. Keep children and unauthorized persons away from the work place.
Do not let unauthorized persons touch the vacuum cleaner or the supply cord. All unauthorized
persons should be kept at a distance.
When using electrical equipment the necessary safety precautions must be
taken in order to avoid the risk of fire, electrical shock and damage to
persons. The below safety instructions are to be read and followed when
the vacuum cleaner is being used.

User Manual - English
V. Brøndum A/S RONDA®2800H Page 12
5. Put the vacuum cleaner away, or make it ready for transport after use.
Keep the vacuum cleaner in a dry place and inaccessible to children.
6. Do not use force.
Do not use force when operating the vacuum cleaner. Do not step on the hose, or the electrical cord.
7. Choose the correct tool, accessories for the task.
Do not use badly proportioned or light tools for heavy tasks. Do not use tools for anything they are
not intended for.
8. Choose suitable working clothes.
9. Personal protective equipment.
Put on eye and/or hear protection, if necessary. Put on respirator in dusty environments.
10. Protect the electrical cord.
Never carry the vacuum cleaner by the electrical cord. Do not remove the plug from the socket by
pulling the electrical cord. Keep the electrical cord away from heating sources, oil and sharp edges.
11. Choose a safe working position so that there will be no risk of falling in the hose and cord.
12. Keep the machine and equipment in good repair.
Keep the vacuum cleaner clean and dry and follow the instructions of the chapter about
maintenance.
13. Cut off the electricity supply when the vacuum cleaner is not in use.
Remove the plug from the socket before maintenance, repair and when the vacuum cleaner is not in
use.
14. If extension cords are used out of doors, they must be
approved for this.
If extension cords are used, the following guidelines must
be observed.
15. Show attention and be rested.
The vacuum cleaner must not be used, if the user is tired, sleepy or sick or under the influence of
alcohol or drugs / medicine.
16. Check for damage.
Check the vacuum cleaner for damage. Check that the shields etc. have been properly fastened.
Check the electrical switches, and have an authorized service mechanic replace them, if they are
damaged. Do not use the vacuum cleaner, if it cannot be started and/or stopped at the switch.
Length of cord
in meters
Cross section
<16A
<25A
Up to 20 m
Ø1,5mm²
Ø2,5mm²
20-50 m
Ø2,5mm²
Ø4,0mm²

User Manual - English
V. Brøndum A/S RONDA®2800H Page 13
3. Technical Data
3.1 In General
The RONDA®2800H is as the basic model not equipped with any collection equipment (container or bag),
these have to be bought as required by the user.
The RONDA®2800H has many options (see section 4 for more details).
1) Collection in a 40 litres container
Recommended for the collection of heavy materials not demanding dust-free emptying. (Materials not
hazardous to health)
Collection directly into the container –no bag.
2) Collection in a 65 litres container
Recommended for the collection of light materials not demanding dust-free emptying (shavings etc.).
3) Collection in Longopac
Recommended for the collection of all kinds of dust. (Dust-free emptying, replacement of
dispenser/bag can raise the dust).
NOTE: The material will not be emptied into the bag until the machine is switched off.
Is not recommended for materials with threads (carpets, fabric etc.) as the dispenser for Longopac has
grating in order not to suck up the Longopac into the machine during operation.
12 litres can be collected before the machine has to be switched off in order to empty the material into
the bag.
4) Collection in Longopac with Container and Hose for Vacuum
Recommended for the collection of all kinds of dust. (Dust-free emptying, replacement of
dispenser/bag can raise the dust).
The material is emptied directly into the bag as this is kept open in the container by means of the hose
for vacuum.
Approx. 35-40 litres can be collected before the bag/container is to be emptied.
Recommended for materials with threads as there is no grating in the dispenser for Longopac.
5) Collection with Flap Valve and Longopac
Recommended for the collection of all kinds of dust. (Dust-free emptying, and dust-free replacement of
dispenser/bag).
NOTE: The material will not be emptied into the bag until the machine is switched off.
12 litres can be collected before the machine has to be switched off in order to empty the material into
the bag.
6) Collection with Flap Valve, Longopac and Container with Hose for Vacuum.

User Manual - English
V. Brøndum A/S RONDA®2800H Page 14
3.2 Technical Specifications
Suction motor, blow through 3 x1100 Watt
Suction motor, voltage 230* Volt
Suction capacity 2550 mmH2O
Air flow, max. 162 l/sec.
580 m3/h
Air flow at the hose coupling (5 metres hose) 83 l/sec.
300 m³/h
Noise level <70 dB(A)
Filter area, multi-tube filter 1.87 m²
Filter area, HEPA 2.2 m²
Height 1495/1765 mm
Length 800 mm
Width 715 mm
Weight without accessories 65 kg
Length of cord 8 m
* Also available in 380V with CEE (blue three-point) plug

User Manual - English
V. Brøndum A/S RONDA®2800H Page 15
3.3 Mode of operation
When the suction motor of the machine is on, the air will be drawn through the machine and collect the dust
particles near the nozzle mounted.
The dust particles will be sucked through the hose into the collection container, where the majority of the
particles will be held back in the collection bag and/or the multi-tube filter.
The air flow and the remaining particles, which have not fallen to the bottom of the collection container or have
been held back in the collection bag or the multi-tube filter, will be carried forward to the HEPA-filter.
From the HEPA-filter the purified air flow will continue through the suction pump (blow through) and will be led
out of the vacuum cleaner through the exhaust and noise reduction filters.
The motor itself is equipped with a thermofuse that will switch off at 115°C.
Therefore it is recommended not to use the vacuum cleaner at temperatures above 35°C, as the operation of
the machine can be unstable.
If the thermofuse switches off, it will take up to 1½ hour before it has been cooled, and operation of the
machine can be resumed.
IMPORTANT! As the motor leads the cooling air through the machine, all the filters MUST be
mounted and intact.
IMPORTANT! Never cover up the motor top when the machine is in use.
IMPORTANT! Never collect warm or glowing materials.
IMPORTANT! Never extract from processes producing sparks.

User Manual - English
V. Brøndum A/S RONDA®2800H Page 16
4. Composition - Structure - Operation
4.1 Versions of RONDA® 2800H and use
1:
RONDA®2800H with a 40 litres container.
Suitable when you want to collect the material directly into a container.
If you want to collect in a bag you must use the Longopac dispenser (81.89.0076
without grating / 81.89.0075 with grating), and also intermediate ring
(85.68.0009). (The machine will then be like (4)).
2:
RONDA®2800H with a 65 liter container.
Suitable when you want to collect the material directly into a container.
Should be used for light materials only (shavings etc.) as the container will be
very heavy when filling up with heavy materials.
3:
RONDA®2800H with Longopac dispenser.
Suitable for collection of cement and other fine and heavy dust that you want to
collect in a plastic bag (Longopac).
12 litres can be collected before the machine has to be switched off for emptying
of the buffer.
NOTE: The Machine does not empty the dust into the Longopac bag during
operation, as the bag is drawn close to the grating of the Longopac dispenser.
The contents will not be emptied into the bag before the machine has been
switched off.

User Manual - English
V. Brøndum A/S RONDA®2800H Page 17
4:
RONDA®2800H with Longopac and hose for vacuum, where the plastic bag is
protected by the container.
Suitable for the collection of large quantities of dust before the vacuum cleaner
has to be switched off and emptied.
This solution can be used if threads etc. are to be collected. (Use the dispenser
without grating 81.89.0076).
5:
RONDA®2800H with Longopac and flap valve for dust-free change of dispenser.
Is used if you want to make sure that no dust will rise from the machine when
changing the dispenser (or container).
Can be used with a 40 litres container (81.77.3982) without Longopac to ensure
that no dust will fall out of the machine during emptying of the container.
5.a:
RONDA®2800H with flap valve and collection directly into container.
Will ensure that no dust and collected material will fall out when the container is
emptied.
If an air escape valve is mounted, the container can be emptied during operation.

User Manual - English
V. Brøndum A/S RONDA®2800H Page 18
6:
RONDA®2800H with Longopac, container for protection of the Longopac bag,
hose for vacuum for the continuous filling of material into the bag and flap valve
for dust-free emptying and emptying during operation.
Emptying during operation is suitable for large tasks, where you want to empty the
machine without stopping the collection.
This solution can be used for the collection of threads etc. (Use dispenser
81.89.0076).
5 + 5.a + 6) Flap Valve:
Are used if you want to continue the work during emptying (with hose for vacuum, container and Longopac).
The flap is locked, and the container can –after pressure equalization by the hose for vacuum –be pulled out
together with the Longopac bag. Then you can dispose of the bag.
The dust being collected in the meantime will remain in a buffer above the flap valve until the flap valve is
opened again.
The flap valve can be locked during transport or change of dispenser, if you want to prevent the dust from
being sprinkled from the machine.
The flap valve can be used with dispenser without grating for the collection of threads etc.
4 + 6) Hose for Vacuum and Container:
This unit is used to create a negative pressure on the outside of the bag, when a plastic container is used.
It is necessary to use a plastic container with hose for vacuum, if you want the collected material to be emptied
directly into the bag. The bag is drawn to the outside wall of the container, and the collection capacity of the
bag will be equal to that of the container, before the machine is to be stopped / emptied.
This composition is to be used, if the material to collect is frayed, as you can use the Longopac dispenser
without grating (81.89.0076).
If dust hazardous to health is to be collected, it is recommended always to use a plastic container for the
protection of Longopac so that no external influence (objects) will tear a hole in the bag.
REMEMBER –if you want to use the hose for vacuum you must also buy a 40 litres container (81.77.3982).
REMEMBER –if you want to use the hose for vaccum with flap valve you must also buy a 25 litres container
(81.77.3985).

User Manual - English
V. Brøndum A/S RONDA®2800H Page 19
3 + 4 + 5 + 6) Longopac Dispenser
The best dispenser in the market for Longopac. After having placed the bag cassette in the dispenser you lock
one end with a rubber ring and the other end is pulled over the edge of the cassette. The end of the bag is
closed with a cable tie. The dispenser is pushed back into the machine and turned a little. The machine is
ready for use.
Now you can collect approx. 12 litres –whereupon the machine has to be switched off in order to have the
collected material emptied down into the bag. After having emptied the material down into the bag you can
resume the collection, or you can close the Longopac bag with a cable tie and dispose of it. If you want to
collect more than 12 litres before emptying the machine, you must use a hose for vacuum with container.
NOTE: The machine will not empty dust into the Longopac bag during operation as the bag is sucked close to
the grating of the dispenser.
REMEMBER always to use a dispenser with grating (81.89.0075) in case of Longopac operation, without hose
for vacuum or flap valve.
4.2 Description of the main parts
RONDA2800H is designed as an effective industrial vacuum cleaner for the collection of fine dust and dust
hazardous to health. Below follows a description of the main parts and how they work and operate.
Motor Top with Suction Motor and HEPA-Filter
The motor top is equipped with an integrated handle and switches for the powerful suction motors.
The three powerful suction motors of the RONDA2800H are placed in the motor top.
Operation of the machine can generate or produce static electricity, which can be inconvenient for the work.
Therefore the supply cord has a separate wire (conductor) for connection to earth. Any static potential will be
diverted through this wire.
The motor top is provided with a HEPA-filter dust class ”H”
(EN60335-2-69).
The filter holds back the very fine and small dust particles that are not
held back by the multi-tube filter. The filter holds back particles >0.3
m (0.0003 mm). The actual filter surface is 2.2 m2and is protected
by a metal grating.
The HEPA filter must be changed annually or more often.

User Manual - English
V. Brøndum A/S RONDA®2800H Page 20
Adapter Ring with Vacuum Indicator and Shock Valve
The motor top is mounted on the adapter ring and fastened with three
container clips. A vacuum indicator (1) and a shock valve (2) are mounted
on the adapter ring.
The vacuum indicator measures the vacuum between the multi-tube filter
and the HEPA-filter. The scale of the vacuum indicator has a green and
red area. If the pointer reaches the red area during operation, it indicates
that the filter is being blocked and that the air velocity in the suction hose
consequently will fall and become too small. You can clean the filter
during operation by using the shock valve.
Filter Container with Multi-Tube Filter
The large multi-tube filter of the RONDA2800H is mounted in
the filter container. The multi-tube filter has been tested with
quartz-dust particles, of which more than half is less than 5 m. (5
m is the same as 0.005 mm.)
The surface of the filter is 1.87 m2and has a fine Teflon-coating.
The Teflon-coating repels the dust, which will in this way not stick
so easily to the filter material.
The filter consists of a large number of tubes (channels) mounted
on springs. During operation the tubes vibrate, and part of the
dust sucked on to the surface of the filter will fall down in the
collection container.
1
2