RECOFIL™ by WAMGROUP: Turning Recovered Dust into a Controlled, Cleaner Process

Dust Recovery System
In industrial dust filtration, collecting dust is only the first step. The real efficiency challenge begins immediately afterwards: how to remove the dust from the filter hopper, convey it safely, avoid secondary emissions and manage disposal without exposing operators to unnecessary manual handling.

With RECOFIL™, WAMGROUP addresses this often-underestimated stage of the process. Designed as a pneumatic dust recovery device for fume and dust filters, RECOFIL™ automatically removes the material collected inside filter hoppers and conveys it to a storage or collection point. The result is a cleaner, more controlled and more efficient dust management process, especially in applications where filter hoppers fill frequently or where manual emptying can generate environmental and operational issues.

From dust collection to dust recovery

In many plants, dust filtration systems perform reliably at the air-cleaning stage, but the recovered material still requires manual intervention. Operators may need to empty bins, handle dusty bags, use forklifts, stop equipment or manage local contamination during disposal. Over time, these activities create hidden costs: labour, downtime, housekeeping, operator exposure and loss of process continuity.

RECOFIL™ has been developed to simplify this part of the workflow. Installed beneath the filter hopper, it uses pneumatic conveying to transfer recovered dust without the need for conventional mechanical conveying equipment in the line. In suitable configurations, the system can work with the compressed air already used for filter cleaning, keeping air consumption low and making the solution particularly practical for existing dedusting installations.

It is precisely here that the full value of RECOFIL™ becomes clear: transforming dust discharge from an intermittent manual operation into an automatic, closed loop and repeatable process.

A compact system with a clear operational purpose

The strength of RECOFIL™ is not complexity, but intelligent integration. The device is designed to remove dust from the filter hopper without stopping the plant for bin emptying. This helps maintain continuous filter operation and reduces the maintenance burden typically associated with manual dust handling.

In industrial environments such as metalworking, welding, sheet metal cutting, sand blasting, shot blasting and other dry dust-generating processes, this approach can improve both cleanliness and productivity. Dust is no longer treated only as a waste problem at the end of the filtration cycle; it becomes a material flow that can be managed in a structured way.

For plants with several filters, RECOFIL™ can also be part of a wider recovery architecture. The recovered dust can be directed to a central collection point, silo or FIBC filling station, depending on the process layout and disposal strategy.

RECOFIL™ and EASYFILL™: a practical recovery chain

When combined with EASYFILL™, WAMGROUP offers a complete collection system for dust recovered through RECOFIL™. EASYFILL™ is a dedicated FIBC filling system designed to receive pneumatically conveyed dust from up to four filter units equipped with RECOFIL™ recovery systems. The unit is compact, modular and preassembled, and it can be used with different sizes of bulk bags.

This combination allows plants to move from filter hopper discharge to controlled big bag filling with minimum exposure to the surrounding environment. EASYFILL™ is equipped with a semi-automatic system for quick bulk bag replacement and includes an air jet-cleaned cartridge filter to prevent dust emissions during filling, helping protect both operators and the workplace.

The key benefits can be summarised in one clear operational package: automatic dust removal from filter hoppers, reduced manual emptying, low air consumption, fewer interruptions, controlled transfer to FIBC or storage, lower exposure to polluting dust and reduced disposal-related handling.

Built around WAMGROUP dust filtration know-how

RECOFIL™ fits naturally into WAMGROUP’s long-standing expertise in industrial dust filtration and bulk solids handling. Through the WAM®AIR division, WAMGROUP has developed a broad portfolio of dust collectors and filters for applications ranging from building materials and concrete to food, feed, plastics, chemicals, heavy industries, glass, metalworking, recycling, mining and quarrying.

This cross-industry experience is important because dust is never the same from one plant to another. Particle size, density, abrasiveness, moisture sensitivity, filter configuration and disposal strategy all influence the correct recovery concept. A solution such as RECOFIL™ is therefore not simply an accessory, but part of a broader dust management strategy that connects filtration, conveying, collection and operator safety.

Cleaner plants, safer handling, lower operating pressure

A modern industrial plant must be productive, clean and sustainable all at the same time. This is particularly important in sectors where dust emissions are not just a matter of cleanliness, but also a matter of health and safety, environmental protection and regulatory compliance.

By automating dust recovery, RECOFIL™ helps reduce the need for operators to intervene directly at the filter discharge point. It limits the uncontrolled release of fine particles, reduces the physical effort associated with bin emptying and supports a more organised disposal flow. In practical terms, this means less downtime, fewer manual tasks and a cleaner production area.

For companies investing in upgraded filtration systems, RECOFIL™ also closes a critical gap: it ensures that the material captured by the filter is managed with the same level of control expected from the filtration process itself.

A small device with a measurable impact

Dust recovery may look like a secondary operation, but it directly affects plant efficiency. If filter hoppers have to be emptied manually, if dust escapes during disposal, or if operators need to stop equipment for routine cleaning, the cost is not only visible in labour. It appears in downtime, contamination risk, maintenance and lost process stability.

RECOFIL™ was developed precisely to reduce this operational pressure. Its pneumatic recovery concept, compact installation beneath filter hoppers and compatibility with central collection or FIBC filling systems make it a practical solution for plants looking to modernise dust handling without adding unnecessary complexity.

With RECOFIL™, WAMGROUP brings automation, cleanliness and process continuity to a stage of dust filtration that is often left to manual handling. For industries looking to reduce secondary emissions, protect operators and simplify dust disposal, RECOFIL™ offers a focused and effective answer.

Discover RECOFIL™ and the complete WAMGROUP dust recovery solutions browsing the official WAMGROUP website or contact the WAMGROUP team for technical support and application-specific guidance.

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WAMGROUP is the global market leader in Screw Conveyors and amongst the most prominent players in the field of Bulk Solids Handling & Processing Equipment. The company founded in Modena, Italy, in 1968, employs some...

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