SuperBlower filter installed at Recycling plant Hamilton

Click to see what happens
when a dust filter explodes

INDUSTRIAL DUST EXTRACTION SYSTEMS & EQUIPMENT 

Complete Range of Industrial Dust Filtration Equipment

If you are looking for dust extraction equipment, our comprehensive range of dust collectors are detailed below. We are very experienced in specifying dust collectors from small workshops, right up to large corporate companies requiring dust extraction on a truly industrial scale. Our dust experience covers any site where there is dust: market sectors such as wood and metal manufacturing, education, food processing, defence, recycling, vehicle exhaust, (including emergency vehicles), and agricultural sectors.

Tell us your dust type, and the number of machines you need to extract from, and we will help provide you with a world leading dust filtration solution! We can share with you technical support, not only from our very experienced sales engineers, but also the considerable knowledge and experience from our major European suppliers and the many thousands of installations globally using their filters. As well as our technical support, several dust collectors from our range below are available ex stock at our warehouses in Auckland with all our other supporting dust products and LIPLOCK ducting range. Whilst larger filters will need to be ordered specifically for your dust solution, our large stock holding makes us unique in the NZ dust filtration industry.

If you have a rough idea of what type of filter specification you may need, browse our selection of filter products below, but for those wanting help with a complete system design, visit our Dust Extraction page or Contact us today for experienced advice for any sized project!

Dust Extraction Equipment Categories

Safest and most Energy efficient filters : SuperBlowers using modern tecchnology for very large air volumes.s

ATEX Filter with VARIpulse

ATEX is the safety standard that governs the design, manufacturing and use of equipment in hazardous areas, and its certification applied to a product should be a critical consideration in any decision making by any company, if they plan to operate in potentially explosive atmospheres which include combustible dust environments.

Our range of filters in the VARIpulse range not only include the most energy efficient cleaning system in the world, they are also ATEX approved, and include our totally unique FLAMELESS venting system VFV.

True ATEX approval does not come from retrofitting an explosion membrane labelled ATEX: ATEX approval is a robust 2 tier process including product assessment and quality assurance. Compliance with this standard will help prevent accidents, but if they do occur,  workers will be better protected.

Our SuperBlower range, suitable for medium to very large scale operations handle air volumes of 7,000-280,000 m3/h and we have installed them in recycling plants, manufacturing/production sites as well as in the grain and seed industry.

Blower Filters available in several sizes with options for discharge, are again for high air volumes up to 50,000m3/h. The circular design gives them strength with no compromise on weight loading. Large dust producers in a range of industries will benefit with this safe energy saving dust collector on site.

Super Jet Filters punch well above their weight due to their design, which will save you energy and space. Capable of moving up to 67,000m3/h with a footprint of only 2.4 x 2.4m, this new design has been popular in busy timber mills and MDF manufacturing sites where the world's  safest and most energy efficient dust equipment is required to fit into a buy existing business. 

These filters are all certified compliant to ATEX:2014/34/EU

ISO 9001:2015 Quality Managment

ISO 45001:2018 Working Environment

ISO 14001:2015 Envirnmental Protection

ISO/AS/NZS 60079 Explosive Atmospheres 

Unique Vertical Flameless Venting to protect employees and staff and pupils in school environments.

School-Safe Dust Collectors 

Our range of Super-Safe modular filters available as 1 module or 2, and capable of being expanded if requirements change, are the perfect dust collectors for a school environment: meeting the ATEX Equipment Directive 2014/34/EU as listed in the Ministry of Education Guidelines to Schools Oct 2022. The unique VFV (Vertical Flameless Venting) is not offered by any other supplier in NZ, or in fact the world. This safety feature ensures that should an explosion occur, the force of the explosion is blown skywards from the roof mounted explosion membrane, and the escape is merely a shock wave. No flames are emiited as with other dust filters, that may have vertical venting but do not have VFV. The filter also remains intact: due to the design and heavier grade construction, it does not explode into pieces with panels, nuts and bolts flying through the air to harm anyone, (pupils/staff), in its path. 

This non explosive feature is essential particularly as school dust extraction is often placed directly outside the technology classroom. The filter is quiet in operation and our Acoustic Booth can  be used to house the fan to ensure operation in the teaching environment is not problematic.

Flexible Modular filters can easily have additional modules added using stock immediately available: saving money when you expand.

Modular Filter Systems

A low cost filter solution that has been available for years, our Modular filters, (sometimes referred to as baghouses), offer flexibility: further modules can be added when greateer capacity is required due to new machines etc. being added to fulfill changing business needs. Being able to reuse the existing filter and grow, without a total replacement required is a huge cost advantage and all additional filter components, (to add one module or two), are readily available ex stock in our Auckland warehouses.

These filters are easily picked up and craned to a new location, or our own installation team can simply remove side panels to extend your existing modular dust collector to give more filter area as required.

Modular filters are often the choice of smaller joinery workshops, are reliable and low maintenance provided the original filter area is sized correctly to avoid annual replacement of filter socks - our policy of specifying a large filter area, avoids this future cost for you - many of our 10year old installations are still operating with the same filter socks. A cheaper quote is never the cheapest, when you consider the total ongoing cost of your purchase!

Spares and accessories all in stock in our Auckland warehouses

Dust Extraction Acessories

As well as our LIPLOCK ducting system, we stock a vast range of accessories to compliment your dust filtration solution. Material handling and clean air fans, VSDs to ensure your fan is operating at the optimal speed for energy efficiency, silencers and acoustic booths to minimise fan noise in senstive areas, duct explosion release for added safety, rotary valves for bin exit and collection, as well as flexible antistatic duct ideal for dust conveyence, and certified as permenantly antistatic with the AS material is in the wall itself.  

If you have followed our advice  in correctly sizing the filter area initially, you will not be dealing with annual costs associated with a filter bag change - most of our filters installed even 10 years ago are operating with the original filter socks. A cheaper quote for a smaller filter is never the best purchase decision if you factor in the total running costs for the filter. But if you do require new filter socks or cartridges they can usually be sent out the same day as you place your order.

Our accessories are mostly supplied by our key European suppliers and so are compatible with the whole dust filtration system and are available to you quickly ex Auckland.

Choosing the right Filter type for you :

Choosing by Application/Industry type:

Dust extraction is a precise science and for many purchasing staff in even larger companys, the selection of a new dust filtration system may be a once in a lifetime purchase so any decision should be based on the right factors. You will save money by coming to a company that is installing dust extraction equipment constantly, in a variety of industries, rather than rely on costly consultants who are not experts in this very unique area, nor is the company that completed your air conditioning plant. 

Our experienced staff will visit your site to see how you operate, and assess the dust type and associated risk. In some instances, eg. schools, there are documented mandatory requirements for the dust extraction to be ATEX certified. For others it might be an option, but the huge benefits in safety of our ATEX certified dust filters will be explained to you, and they are often very similar in price to filters offering no technically advanced features at all due to the scale of production.

We will have almost definitely worked in plants in your industry before and will share our solutions - different industries require different considerations which we can help navigate for you to ensure your decision included safety and compliance.

Understanding Technical Specifications:

When presented with information about a proposed dust extraction solution, many companies will focus on powerful fan sizes as the key factor in ensuring their system will suck! This is infact not necessarily true: a too powerful fan on a smaller filter area will result in the dust embedding into the fabric of the filter media so deeply that it cannot drop off to be collected at the filter base and removed as is intended. See how this happens ! The result is with in weeks, or certainly months, the blocked filter bags can no longer pass air and the entire dust collector will likely block. This presents itself as a drastic loss of suction, leaving dust to start building up in your extraction ductwork - dangerous as the duct now becomes very heavy, and because any source of ignition now has material to cause a fire and possible explosion.

For the above reason, many companies end up replacing their filter socks every year - a costlty and unnecessary maintenance cost. NZ DUCT+FLEX technical sales staff with ensure you have the correctly sized filter area - a larger filter always lasts longer with none of the above problems. 

Current Health and Safety regulations require anyone operating, managing or purchasing equipment for your business must, as far as possible, protect employees- having a correctly sized filter is paramount. A larger fan will consume more energy, but it a waste of money if the actual dust collector is too small. 

 The NZ DUCT+FLEX Advantage:

Our partnerships with large European manufacturers supplying dust collectors globally ensures the products we offer is the best money can buy due to the wealth of accumulated experience they have in every possible industry.

All dusts are explosive to varying degrees, therefore dust filters can and do explode. It is rare, but when it does happen the results can be catastrophic, resulting in death or serious injury:

Vertical Flameless Venting - the world's safest Filter!

We are able to offer a range of dust filters with UNIQUE Vertical Flameless Venting: VFVTM Should a filter catch fire and an explosion occur, dust extraction filters with VFV™ vent vertically through the roof via an ATEX approved explosion membrane.

• Vertical release protects the area around the dust filter unit – no need to mark off exclusion areas near a SIDE venting explosion panel.
• There is NO FIRE BALL: all the dust and flames are contained within the filter unit!  Due to the strengthened design, the unit itself actually remains intact, apart from the explosion release panel at the top.

Filters with this VFV™ technology are unique in the Australian and in fact global dust extraction market.

These units have been independently tested and certified by the German FSA test house.

Ask to see the certification or video confirmation from an authorised test house if you are offered a product that makes the same claims – they are often retrofitting explosion membranes to a basic filter assembly which has not been proven to withstand an event,  and the result of airborne panels and thousands of screws will be devastating anyone in its path.

ATEX and IECEx compliant units supplied as required. 

VFV : No flames or fire ball - just vertical shock wave - the safest dust extraction release system ATEX certified filter

VARIpulse™ Cleaning - the world's most Energy Efficient!

Our European designed and manufactured VARIpulse™ filters are the most ENERGY efficient (and SAFEST) filters available worldwide.
The VARIpulse™ cleaning system regulates not only the frequency, but also the power, of the pulse cleaning system for your dust extraction unit.

How can VARIpulse™ save you energy?

• The filter sock cleaning by compressed air is controlled by an automatic sensor
• Cleaning only occurs when VARIpulse™ sensors detect that the filter bags need pulsing, instead of a fixed every 30 seconds or so, which is the system found on most other dust filters.
• Less energy is required to clean the bags and VARIpulse™ saves between 50-90% of compressed air consumption – therefore less load on your compressor!
• When pulse cleaning takes place, each bag is cleaned individually. This is unique to the VARIpulse™ system, saves compressed air, and introduces the cleaning pulse at exactly the correct point above the filter sock. This ensures evenness of cleaning action across EVERY bag in the dust filter.
• Whilst cleaning individual bags, the VARIpulse™ sensors also measure the air flow through the filter socks and adjusts the pulse forces between 1.5bar and 5bar. This saves another 40-60% of compressed air.
• Because the filters are all uniformly cleaned and operating at maximum efficiency, the pressure loss through the filter is maintained at optimum levels, to ensure minimal load on the extraction fan and compressed air motors.

VARIpulse cleaning - sensor adjusts cleaning pressure required in each filter sock - Save money!