Areas of application

KNOLL VRF vacuum rotation filters are backflush filters for cleaning cooling lubricants (KSS) from machining processes.

Use as a stand-alone cleaning unit or in combination with chip conveyors (e.g., on machining centres)
Local (for one machine tool) or centralized use (for several machine tools) possible

Features	Benefits
Compact design	Space-saving installation
No filter consumables	Low operating costs
Integrated scraper belt	Problem-free discharge of chips, even from light metal
Universally applicable for different machining processes, materials, cooling lubricants, volume flows and levels of purity	Einfache Auslegung und Planung
Modular construction kit	Specific system according to customer requirements Short delivery time Good availability of replacement parts
Plug and Play through universal, digital interfaces	Quick installation and start-up
Available as a modular system or special system	Individual choice with impact on price, delivery time, and configuration

Description

Filtering process

Contaminated liquid flows through the intake box into the filter.
The filter pump draws contaminated liquid into the interior of the filter drum.
The filter element on the filter drum retains dirt particles as they flow through.
The dirt particles form a filter cake that also separates smaller particles.
The filter pump conveys the cleaned liquid into the tank.
Low and high-pressure pumps supply the machine tool with cleaned cooling lubricant as required.

Regeneration process

The growing filter cake increases the flow resistance; the underpressure rises.
At a defined underpressure, the filter drum rotates and the backwash pump loosens the filter cake.
The scraper belt transports the settled sludge out of the filter into the sludge tank.

Scheme

Downloads

Filter systems

Vacuum rotation filter VRF

Data sheet VRF 150/300/500/700

pdf (1 MB)

Data sheet VRF 250/450/650/900

pdf (727 KB)

Overview of our filter range:

Filter systems for improving the quality of cooling lubricants. They are used to remove ultra-fine particles and foreign matter from the main filter system in the bypass flow.

ByPass bath maintenance filter

Flüssigkeitszentrifuge CA 100 - KNOLL Maschinenbau GmbH

Automatic centrifugal separator for continuous ultrafine filtering of cooling lubricants and other industrial process fluids. Very good price-performance ratio. Max. filter output 120 l/min.

Fluid centrifuge CA 100

The HydroPur hydrostatic filter is a filter fleece for cleaning cooling lubricants during material removal operations.

Hydrostatic filter HydroPur

Hydrozyklon F60- KNOLL Maschinenbau GmbH

Simple, modular centrifugal separator for separating sedimenting solids from low-viscosity liquids (e.g. emulsions) without filter consumables. Filter performance up to 90 l/min per module.

Hydrocyclone F60

Band filter in bevel design for cleaning of cooling lubricant with filter fleece. With simple vacuum technology. Filter performance up to 1,000 l/min per unit.

Hydrostatic filter HL

Compact band filter in trough design for cleaning of cooling lubricant with filter fleece. Filter performance up to 2,000 l/min per unit.

Compact filter KF

Kompaktfilter KF-E - KNOLL Maschinenbau GmbH

Compact band filter in trough design for cleaning of cooling lubricant with filter fleece. Filter performance up to 2,000 l/min per unit.

Compact filter KF-E

Backflush filter for separating superfine impurities from oils and aqueous solutions. The ideal area of application is the tool grinding of hard metal and HSS. High filtration grade (1-3 µm). Filtration capacity up to 480 l/min.

Superfine filter MicroPur®

Chip separators CS are devices for separating short chips, which the conveyor of a hinged or slat conveyor cannot hold back.

Chip separator CS

Simple band filter in flat-bed design for cleaning of cooling lubricant with filter fleece. Filter performance up to 1,000 l/min per unit.

Gravity belt filter PF

Modular backflush filter for treatment of cooling lubricants without filter consumables, usually in combination with a sludge conveyor. Filter performance up to 250 l/min per unit.

Reversible flow filter TURBO

High performance band filter in bevel design for fine cleaning of cooling lubricant without filter consumables. With extended vacuum technology, optionally with precoating system or filter fleece. Filter performance up to 1,500 l/min per unit.

Vacuum filter VL

High performance band filter for cleaning of cooling lubricant without filter consumables, for example profile grinding with processing oil. Filter performance up to 900 l/min per unit.

Vacuum filter VLO

Vacuum rotation filter VRF

Filter systems for improving the quality of cooling lubricants. They are used to remove ultra-fine particles and foreign matter from the main filter system in the bypass flow.

ByPass bath maintenance filter

Automatic centrifugal separator for continuous ultrafine filtering of cooling lubricants and other industrial process fluids. Very good price-performance ratio. Max. filter output 120 l/min.

Fluid centrifuge CA 100

The HydroPur hydrostatic filter is a filter fleece for cleaning cooling lubricants during material removal operations.

Hydrostatic filter HydroPur

Simple, modular centrifugal separator for separating sedimenting solids from low-viscosity liquids (e.g. emulsions) without filter consumables. Filter performance up to 90 l/min per module.

Hydrocyclone F60

Band filter in bevel design for cleaning of cooling lubricant with filter fleece. With simple vacuum technology. Filter performance up to 1,000 l/min per unit.

Hydrostatic filter HL

Compact band filter in trough design for cleaning of cooling lubricant with filter fleece. Filter performance up to 2,000 l/min per unit.

Compact filter KF

Compact band filter in trough design for cleaning of cooling lubricant with filter fleece. Filter performance up to 2,000 l/min per unit.

Compact filter KF-E

Superfine filter MicroPur®

Chip separators CS are devices for separating short chips, which the conveyor of a hinged or slat conveyor cannot hold back.

Chip separator CS

Simple band filter in flat-bed design for cleaning of cooling lubricant with filter fleece. Filter performance up to 1,000 l/min per unit.

Gravity belt filter PF

Modular backflush filter for treatment of cooling lubricants without filter consumables, usually in combination with a sludge conveyor. Filter performance up to 250 l/min per unit.

Reversible flow filter TURBO

Vacuum filter VL

High performance band filter for cleaning of cooling lubricant without filter consumables, for example profile grinding with processing oil. Filter performance up to 900 l/min per unit.

Vacuum filter VLO

Vacuum rotation filter VRF

Areas of application

Features

Benefits

Description

Scheme

Downloads

Overview of our filter range: