Filter Technology

Folding belt filter

Efficient coolant filtration in a compact design

The folding belt filter is a compact, fully automatic filtration system for cleaning coolants and other metalworking fluids. As a space-saving variant of the pressure belt filter, it is particularly suitable for limited installation spaces, retrofits and industrial applications with high flow rates.

Folding-band filter

Metalworking

Oil filtration

Rolling and Steel Industry

Automotive industry

Machine Tool Manufacturing

The folding belt Filter

Compact folding belt filter for coolant filtration

A folding belt filter is more than a space-saving filtration system: it is a practical solution for industrial coolant filtration. Contaminated coolant is cleaned automatically without requiring extensive installation space or manual intervention. The hinged upper chamber provides quick access to the filter belt and internal components, making maintenance and servicing considerably easier. In daily operation, this means less downtime, less effort and more focus on production.

Folding-band filter

The KÖBO ECO>PROCESS folding belt filter

The KÖBO ECO>PROCESS folding belt filter is a compact variant of the pressure belt filter for fully automatic coolant filtration. Its hinged upper chamber provides quick access to the filter belt and internal components for maintenance and cleaning.With a filter area of 1.5 m² and a flow rate of 50 to 2,000 l/min, the system is particularly suitable for limited installation spaces, retrofits and both central and decentralised filtration systems. Each folding belt filter is configured for the fluid, particle load, required filtration fineness and available installation space.

Technical specifications of the folding belt filter

Filtration fineness

25-120

µm

Filter area

1.5

Flowrate

50 – 2,000

l/min

How the folding belt filter works: Filtration and regeneration

01

Contaminated coolant is pumped into the upper dirt chamber of the folding belt filter. Under controlled positive pressure, the fluid passes evenly through the filter belt or filter fleece. Solid particles are retained on the filter medium and form a filter cake, which further improves particle separation.

02

The filtered fluid collects in the filtrate chamber below and is then returned to the production process. A sensor monitors the differential pressure and therefore the saturation level of the filter medium. Once the specified threshold is reached, filtration stops and regeneration begins automatically. Compressed air dewaters the filter cake, which is then discharged mechanically while a fresh section of filter medium is drawn in.

03

The hinged upper chamber provides quick access for servicing and significantly reduces downtime. Thanks to its compact design, the folding belt filter can be integrated flexibly into existing systems, making it particularly suitable for retrofits and restricted installation spaces.

Advantages of our folding belt filters

80% less space required

The compact design significantly reduces the required installation space compared with conventional flat-bed filters. This makes the system particularly suitable for production environments with limited space, retrofits and central filtration systems.

Flow rate of up to 2,000 l/min

With a flow rate of up to 2,000 l/min, the folding belt filter is suitable for applications with high coolant flow requirements. Actual performance depends on the coolant, its viscosity, the particle load and the selected filter medium.

Easy to maintain

The hinged design provides quick access to all components required for servicing and cleaning. This reduces downtime and simplifies maintenance, particularly during belt replacement or troubleshooting.

Fully automatic operation

The filter operates fully automatically. Its control system monitors the contamination level and controls the belt advance, drying and discharge cycle without requiring manual intervention by operating personnel. This conserves resources and supports reliable production.

Delivered pre-assembled

The system is delivered pre-assembled and ready for installation, including all mechanical and electrical connections. This reduces on-site installation time and speeds up commissioning.

Need a compact filtration solution?

We configure the folding belt filter for your process requirements.

Applications of the folding belt filter

Metalworking

In machining operations, the filter reliably separates chips, grinding dust and fine particles from coolant. It is suitable for milling, turning, drilling and grinding processes and can also be used as a secondary filter in precoat filtration systems.

Oil filtration

Folding belt filters can be used for secondary filtration in oil-based coolant circuits. This improves fluid cleanliness and extends coolant service life.

Retrofitting existing production systems

Thanks to its compact design, existing production lines can be retrofitted with effective coolant filtration while requiring minimal installation space.

Rolling and steel industry

At high flow rates and temperatures, the filter provides robust and continuous fluid filtration.

Automotive industry

Stable filtration performance supports production processes involving different materials and complex geometries, which is particularly important in high-volume manufacturing with tight tolerances.

Machine tool manufacturing

The filter can be integrated directly into machines where installation space is limited, making it suitable for both individual machines and production lines.

Grinding processes

In grinding processes, the folding belt filter removes fine solid particles from coolant. This supports consistent surface quality and longer service life for tools and coolant.

Why choose KÖBO ECO>PROCESS for folding belt filtration?

01

Decades of experience

Our company has many years of expertise in the development and implementation of folding-belt filters for various industries. Through continuous innovation and practical solutions, we have established ourselves as a trusted partner.

02

Complete systems from a single source

We offer our customers a comprehensive range of services, from initial planning through implementation to maintenance and optimization of the systems. This ensures that all components are perfectly coordinated and deliver maximum efficiency.

03

Application-specific system design

Every production environment is unique—that’s why we tailor our folding belt filters precisely to our customers’ specific requirements. Our custom solutions ensure optimal integration and maximum productivity.

04

Fast response times

Our experts are always available to respond quickly to inquiries, issues, or requests for adjustments. Through optimized processes and efficient resource planning, we guarantee prompt handling of all requests, which minimizes downtime.

05

Direct technical support

We place great importance on working closely with our customers. Our support team is with you every step of the way—from your initial inquiry through to final implementation and beyond. Thanks to direct lines of communication, we ensure quick decision-making processes and prompt implementation of your specific requirements.

06

Resource-efficient systems

Our folding belt filters are designed to conserve resources and minimize energy consumption. Through intelligent control systems and durable materials, we actively contribute to sustainability and cost-effectiveness.

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