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Fluid Centrifuge CA 100

The CA 100 automatic fluid centrifuge is a centrifugal separator for continuous superfine filtering of cooling lubricants and other industrial process fluids. Its main features are high separating capacity down to the smallest particle ranges and automatic sludge draining.

Areas of application:

The fluid centrifuge CA 100 is thus ideally suitable for bath upkeep on central cooling lubricant preparation systems and single machines. This prevents the concentration of finest particles of steel, hard metal, silicon, ceramics, graphite, etc. Further areas of application are sludge concentration of backflush filters and full-flow filtering of smaller fluid quantities in superfinishing processes.

Properties:

Very good price/performance ratio Short regeneration cycle thanks to mechanical brake system Frequency-controlled, wear-resistant direct drive via clutch Sound and oil-mist attenuation by shutter flap Electonic vibration monitoring with automatic stop function Separate speed monitoring of motor and drum Automatic flushing of rotor and centrifugal-force valves Flexible control console, can be erected on 2 sides.

Function:

1. Separating The drum accelerates to maximum rotational speed. As soon as it enters, the contaminated liquid is spread in ring shapes at the drum wall due to centrifugal forces. Since the dirt particles have a higher density than the liquid, they move outwards and accumulate on the drum wall. A skimming pipe takes in the cleaned liquid and conveys it out of the drum.

2. Drying The supply of fluid stops after a settable period of time. At reduced speed the centrifugal-force valves open to allow the remaining fluid to leave the drum.

3. Draining The brake stops and blocks the drum within seconds. Scraper blades rotate in the reverse direction at low speed in the stationary drum. The compact sludge drops out of the centrifuge.

4. Flushing The drum accelerates to drying rotational speed and liquid is entering the centrifuge again for a certain period of time. Then the drying and draining phases start again (see 2. and 3.).

Hydrostatic filter HydroPur

Areas of application:

The HydroPur filter system is a fleece filter for cleaning the cooling lubricant (KSS) in machining processes. It is used as an independent cleaning unit (e.g., when grinding) or as a supplement to chip transport systems (e.g., when milling).

Description

Filtration process:

The dirty coolant goes from the machine tool into the filter trough
Due to the hydrostatic pressure, the liquid flows through the filter fleece, which holds back the dirt particles
The dirt particles form a filter cake that separates even the smallest particles
The clean liquid flows into the filter chamber and collects in the clean tank
Supply pumps supply the machine tool with cleaned coolant as required.

Regeneration process:

The growing filter cake increases the flow resistance
The liquid level in the filter trough increases
The belt drive switches on at a defined level
The carrier belt transports a piece of clean filter fleece onto the filter surface
The level of the liquid decreases again
A sludge container or a take-up unit takes up the dirty filter fleece

Properties	Benefits
Higher hydrostatic pressure compared to flat bed filters	• Higher volume flow • Less fleece consumption • Better level of purity
Build-up of a homogeneous filter cake, especially when grinding	• Good filter quality • Short delivery time
Standardized construction	Favourable price-performance ratio
Modular design with configurable functional units	Optimal coverage of customer requirements
Plug-and-Play via universal, digital interface	Quick installation and start-up
Control with KNOLL SmartConnect	Simple operation and monitoring, also with a smartphone or tablet

Hidrocyclon F 60

Areas of application:

Removing sedimenting solids from liquids of low viscosity such as water and emulsions. Installation as independent cleaning unit on fine machining machine tools.

Function:

Through tangential streaming-in of the liquid, a primary vortex is created. Heavy particles of the liquid are pressed to the wall of the cyclone housing due to centrifugal force. Due to the tapering of the conical cyclone housing, a secondary vortex develops in the lower area which leads the cleaned cooling lubricant back in opposite direction. The dirt particles, together with a small amount of liquid (approx. 1.5 l/min), are removed through the underflow nozzle. The inlet pressure must be approx. 2 bar.

Hydrostatic filter HL

Areas of application:

The hydrostatic filter HL is a fleece filter for cleaning cooling lubricants from machining processes. It is used as an individual cleaning unit (e.g. for grinding), or as supplement to chipconveying systems. The combination of vacuum technology and filter fleece reduces operating costs through low fleece consumption and reduced loss of cooling lubricant.

Properties:

Minimum residual moisture in fleece and waste discharge, resulting in less cooling lubricant loss and reduction of disposal costs
Low fleece consumption
High filter fineness
Trouble-free removal of chips, including light alloy
All-purpose filter for different machining procedures, materials and coolant lubricants

Function:

The contaminated liquid flows through the inlet box into the filter. It then runs through the filter fleece into the filter chamber. From there the filtered medium gets to the clean tank. The vacuum pump generates a vacuum in the filter chamber. The high pressure differential at the filtering surface creates a thick filter cake (concentrate) on the filter fleece. This filter cake also acts as a filter medium and separates smallest dirt particles. As the filter cake increases, the volumetric flow through the filter surface decreases and the level of contaminated liquid rises. At a pre-defined level, the belt drive switches on and conveys the carrier belt together with the filter fleece a little further. Thereby, clean filter fleece reaches the filter surface, the volumetric flow increases and the level of contaminated liquid is reduced again. Once it has emerged from the contaminated liquid, the filter fleece runs over the drying section. The air flow absorbs most of the moisture from the fleece and dirt before they reach the sludge container. A scraper is also available as an option. It scrapes most of the dirt into the sludge container together with a winding unit for the used fleece.

Compact filter KF

Application:

KNOLL compact filters KF are belt filters for cleaning cooling lubricants of machining processes

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

Properties	Benefits
Compact design	Space-saving setup
Good price-performance ratio	Short amortization time
Greater hydrostatic pressure as compared to flat-bed filters	Higher delivery rate, lower fleece consumption and better degree of purity
Sweeping strips and scraper	Problem-free discharge of chips, even light metal ones
Can be used universally for different working processes, materials, cooling lubricants, delivery rates and degrees of purity	Simple design and planning

Description

Filtration process:

Contaminated liquid flows from the side through the inlet box into the filter trough
The filter fleece holds back the contaminant particles during streaming
The contaminant particles form a filter cake, which separates even tiny dirt particles
The filtered fluid collects in the clean tank

Filter belt regeneration:

The growing filter cakes increase the flow resistance
The fluid level in the filter trough increases
The belt drive switches on at a defined level (alternatively: time-controlled)
The carrier belt transports a piece of clean filter fleece to the filter surface
The fluid level decreases again
A sludge container or a winding unit (option) takes up the dirty filter fleece

Compact filter KF-E

Areas of application:

KNOLL compact filters KF-E are belt filters for cleaning cooling lubricants of machining processes

Use as stand-alone cleaning unit or combined with chip conveyors (e.g. in machining centres)
Suitable as pre-separator for downstream superfine filters
Local (for one machine tool) or central (for several machine tools) use possible

Properties

Compact design
Good price-performance ratio
Greater hydrostatic pressure as compared to flat-bed filters
Sweeping strips and scraper
Endless filter belt
No carrying of cooling lubricant by the filter fleece

Function

Filtration process:

Contaminated liquid flows from the side through the inlet box into the filter trough
The filter fleece holds back the contaminant particles during streaming
The contaminant particles form a filter cake, which separates even tiny dirt particles
The filtered fluid collects in the clean tank

Filter belt regeneration:

The growing filter cakes increase the flow resistance
The fluid level in the filter trough increases
The belt drive switches on at a defined level (alternatively: time-controlled)
The carrier belt transports a piece of clean filter belt to the filter surface
The fluid level decreases again A brush and back-flushing device clean the filter belt

Superfine filter MicroPur®

The MicroPur® is a backflush filter for separating superfine impurities from oils. The ideal area of application is tool grinding of hard metal and HSS. In addition to standardised plants for single or several machines, KNOLL offers individual central plants for entire fields of production. Because of its ability to recover valuable raw materials without filter aids, its low power consumption and its low maintenance costs, the filter is particularly economical.

Areas of application:

The MicroPur® is a reversible flow filter for separating superfine impurities from oils. The ideal area of application is tool grinding of carbide metal and HSS. In addition to standardised plants for single or several machines, KNOLL offers individual central filtering systems for entire production areas. Because of its ability to recover valuable raw materials without filter aids, its low power consumption and its low maintenance costs, the filter is particularly economical.

Properties:

High filter fineness (1-3 µm)
Fast and effective regeneration cycle, low backflush volume
Energy-efficient backflush without air
Easy to maintain thanks to good accessibility and fast replacement of filter cartridges
Inexpensive, back-flushable filter cartridges
Energy-efficient, demand-controlled pump control
Flexible modular system requiring minimal space

Function:

Filtering
The filter pump delivers the cooling lubricants tangentially into the filter bowls. Centrifugal force causes larger solids to accumulate already on the housing wall. Then the fluid flows through the filter cartridges from the outside inwards and reaches the filtered coolant tank in the form of filtrate. A filter cake (concentrate) forms on the surface of the filter cartridge; this filter cake supports microfiltration like an additional deep-bed filter.
Regeneration
The growing filter cake causes a reduction in the volumetric flow or an increase in the pressure differential at the filter cartridge. The regeneration phase starts in response to pressure or time control: The feed valve closes and the drain valve opens. The flush pump conveys for a short time the filtered fluid from the inside outwards through the filter cartridge. This dissolves the filter cake and flushes the particles into the drain tank. The fluid is further concentrated by a downstream facility for sludge preparation.

Chip seperator CS

Application:

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

Use as pre-separator for reducing the chip carryover to a downstream cooling lubricant (CL) filter
Use as independent cleaning unit for low purity specifications of the (CL)
Suitable for chips from a density of 2.7 g/cm3 in water-based (CL)

Description

Main functions

Separation

The lift pump conveys the chip/CL mixture tangential to the chip separator
The centrifugal force conveys the chips outwards (primary vortex) before they go down into the chip bunker
A secondary vortex rises upwards and the CL leaves the CS for CL treatment

Draining

Cyclical opening of drain valve
Accumulated chips are flushed from the chip bunker onto the conveyor belt

Combination options

For further requirements, on request we combine the chip separator with

Conveying systems for transporting the chips
Filter systems for cleaning the cooling lubricants and supplying the machine tool

Gravity belt filter PF

Application

KNOLL gravity belt filters PF and belt filters for cleaning cooling lubricants chip-removing working processes.

Use as stand-alone cleaning unit on machine tools or in combination with chip conveyors
Generally local use (for one machine tool)

Properties	Benefits
Good price-performance ratio	Short amortization time
Low maintenance and wear	Low operating costs
Simple layout, easy access to all components	Easy maintenance
Can be used universally for different working processes, materials, cooling lubricants, delivery rates and degrees of purity	Simple design and planning

Description

Filtration process

Contaminated liquid flows through the inlet box into the filter trough
The filter fleece holds back the contaminant particles during streaming
The contaminant particles form a filter cake, which itself separates even the smallest dirt particles
The filtered fluid collects in the filtered fluid tank

Regeneration process

The growing filter cake increases the flow resistance
The fluid level in the filter trough increases
At a defined level, the belt drive switches on (alternatively: time-controlled)
The carrier belt transports a piece of clean filter fleece to the filter surface
The fluid level sinks again
A sludge container takes up the dirty filter fleece

Reversible flow filter TURBO

Areas of application:

The vacuum filter VL is a high performance filter for cleaning the cooling lubricants of machining processes, in particular grinding processes. Depending on the requirement, several filter elements can be used for individual machines (locally) or machine groups (centrally). Its special efficiency is a result of high energy efficiency, low cooling lubricant loss and low disposal costs.

Properties:

Modular system
Can be used with a wide range of plants
Good expandability
Simple, service-friendly design
No filter aids are necessary

Function:

Filtering

Contaminated liquid flows in tangentially through the inlet into the outer part of the filter body.Due to centrifugal force, part of the solids are separated which then settle at the outer housing wall. After flowing through the filter element, which holds back further particles, the liquid reaches the clean area and then the outlet. On the filter element, a filter cake is formed which even separates very small particles. The liquid pressure compresses the air in the reversible flow buffer which then fills up with clean liquid.

Regeneration

The growing filter cake causes the volumetric flow through the filter element to decrease. The regeneration phase begins when a set differential pressure between the contaminated and clean liquid is reached: The drain valve opens while at the same time the clean liquid outlet closes. The air in the reverse flow buffer releases and presses the liquid via a rotating backflushing nozzle from the inside through the filter element. As a result, the filter cake dissolves and then moves through the drain valve to the processing plant (sedimentation basin or belt drive).

Vacuum filter VL

Areas of application:

Properties

Production of pure concentrate with low residual moisture as standard without filter aids
Optimised filter capacity, filter quality and energy efficiency thanks to a flawless control system
Continuous filter process without reverse flushing intteruption
Forced degasification of coolant lubricants in the filter
Can be used for different machining processes, materials and coolant lubricants

Function

Filtering process

The contaminated liquid flows through the inlet box into the filter. It then runs through the filter belt into the filter chamber. From there, a filter pump conveys the filtered medium into the clean tank. The vacuum pump generates a vacuum in the filter chamber. The high pressure differential at the filtering surface creates a thick filter cake (concentrate) on the filter belt. This filter cake also acts as a filter medium and separates smallest dirt particles. The filter and vacuum pumps are regulated demand-driven and and provide for a tranquilized, constant filtering process.

Filter belt regeneration

The permeability of the filtering surface decreases as the filter cake grows. Now the belt drive switches on and conveys the carrier belt together with the filter belt a little further. Thereby, permeable filter belt reaches the filter surface and the volumetric flow through the filter surface continues to rise again. The feed length varies in such a way that the set clock cycle remains constant.

The endless filter belt passes through the following stations:

Filtering section (separation of the dirt particles)
Drying section (extraction of liquid from the concentrate)
Cleaning with air or brush (removal of the concentrate)
Backflushing (removal of the residual particles)

Vacuum filter VLO

Areas of application:

The vacuum filter VLO is suited for cleaning cooling lubricants (CL) for grinding processes. A typical application is profile and gear grinding with processing oil. Due to its easy scalability the filtration unit can be used locally for individual machines or centrally for machine groups. In any case the result is clean oil as well as pure, dry concentrate. And all this without using filter aids.

Properties

Pure concentrate with low residual moisture
Continuous filter process without reverse flushing interruption
Scaling of filter capacities from 300 to 900 l/min (oil) with the same floor space possible
Subsequent extension of the unit possible
Redundant design of the filter modules possible
Different filter qualities per filter module possible

Function

Filtration process

A lifting pump conveys the contaminated liquid into the inlet box. After having been cleaned, it flows from there through the endless belt into the filter chamber and afterwards into the clean tank. The filter pump creates a vacuum inside the filter chamber. Due to the high pressure difference on the surface of the filter, a thick filter cake (concentrate) forms on the endless belt. This filter cake acts as a filter medium and separates smallest dirt particles.

Filter belt regeneration

The growing filter cake increases the flow resistance through the filter surface, causing the vacuum inside the filter chamber to rise. When the level reaches a selected threshold value, the belt drive switches on and conveys the endless belt a little further. Thereby, permeable endless belt reaches the filter surface and the volumetric flow increases again.

The endless filter belt passes through the following stations:

Filtration section (separation of dirt particles)
Drying section (extraction of liquid from the concentrate)
Brush-off device (removal of coarse particles)
Backflushing device (removal of superfine particles)

Vacuum filter VLX

Areas of application:

The vacuum filter VLX is a high performance filter for cleaning the cooling lubricants (CL) of machining processes, in particular grinding processes. Due to the high filter capacity, the product is an ideal component of a central cleaning system for several machines. Its special efficiency is a result of high energy efficiency, low cooling lubricant loss and low disposal costs.

Properties:

Production of pure concentrate with lower residual moisture without filter media
Optimised filter capacity, filter quality and energy efficiency thanks to the intelligent control system
Problem-free chip and light alloy discharge
Almost constant filter quality without outlier
Continuous filter process without reserve flushing interruption
Forced degasification of coolant lubricants in the filter, optionally supported by the overhead tank system
Can be used for different machining processes, materials and coolant lubricants

Function

Filtration process

The contaminated liquid flows through the inlet box into the base of the dirt tank and rises. In the filter chamber the vacuum pumps generate a vacuum. The liquid runs through the filter belt, which holds back the dirt particles, into the filter chamber. A thick filter cake (concentrate) is formed which also acts as a filter medium and separates smallest dirt particles. A filter pump conveys the cleaned liquid to the clean tank. The filter and vacuum pumps are regulated in such a way that the system only filters the maximum required liquid quantity.

Filter belt regeneration

As the filter cake is growing, the permeability of the filter surface decreases and the level of the contaminated liquid rises. At a selected fill level, the belt drive switches on and conveys the carrier belt together with the filter belt a little further. Thereby, permeable filter belt reaches the filter surface, causing the volumetric flow to increase and the level of contaminated liquid to decrease again.

The filter belt passes through the following stations:

Prefiltering device (belt already has a thin filter cake)
Filtering section (separation of dirt particles)
Drying section (extraction of liquid from the concentrate)
Blow-off nozzle and knock-off shaft (separation of the concentrate from the belt)
Flushing nozzle (separation of the remaining particles from the belt)

Vacuum rotation filter VRF

Areas of application:

Cleaning of coolant lubricants, emulsions and cutting oils without filter residues. Installation on machine tools for individual machines, machine groups and central plants.

Function

A vacuum pump which has been directly connected with the internal chamber of a filter drum sucks the medium into the interior of the drum. In doing so, the dirt particles on the surface of the filter drum are kept back by means of a superfine filter mesh. Due to the resistance of the accumulating filter cake, the vacuum rises. When an adjustable vacuum is reached, the drum rinsing occurs automatically. An installed scraper chain discharges the sludge. The plant can be controlled via an SPC system or directly from the processing machine.

Szűrő rendszerek

Fluid Centrifuge CA 100

Hydrostatic filter HydroPur

Properties

Benefits

Hidrocyclon F 60

Hydrostatic filter HL

Compact filter KF

Properties

Benefits

Compact filter KF-E

Superfine filter MicroPur®

Chip seperator CS

Gravity belt filter PF

Properties

Benefits

Reversible flow filter TURBO

Vacuum filter VL

Vacuum filter VLO

Vacuum filter VLX

Vacuum rotation filter VRF

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