Used Ipurtec Ip-400 for sale (24,102)

Condition: excellent (used), Year of construction: 2006, functionality: unexamined, machine/vehicle number: 06.E.400.020, Manufacturing origin CH Voltage 3x400V - 24(V – DC) Netweight 5500 kg Dimensions 237x206x195 cm TECHNICAL DATA Control Fanuc 21i-MB 3 axes U : work wheel axis W : workpiece / dressing axis X: drive wheel axis Through feed grinding Workpiece diameter Ø 1.5 - 50 mm Plunge grinding Workpiece diameter Ø 1.5 - 100 mm Grinding length max 270 mm Grinding wheel Max. external diameter Ø 400 mm Inner diameter Ø 203.2 mm Max. speed 50 m/sec. Drive power 11 kW Optional drive power 29 kW Regulating wheel Max. external diameter Ø 250 mm Inner diameter Ø 127 mm Speed 5 - 1'000 min-1 Tilting angle +5° / -5 Fpedpfsiqt S Ajx Aaysl Drive power 3.7 kW Positioning accuracy In all 3 axes 0,1 µm Resolution of glass scales 0.05 µm Dimensions Length 2060 mm Width, (with door open) 2370 mm (3120 mm) Height, (with door open) 1950 mm (2100 mm) Weight 5500 kg Compressed air Max. pressure 16 bar Air consumption 165 L/min Air consumption with straightening spindle 250 L/min Temperature +15° / +40° C. errors and omissions excepted-data given without obligation

Condition: new, Year of construction: 2026, Motor, three-phase, 400V with frequency inverter (kW) 4.0 Table dimensions (mm) 600 x 600 Cutting width (mm) 400 Cutting height (mm) 390 Cutting speed (m/min) 50 – 1000 Saw band dimensions (mm) 3600 x 13 x 0.9 Machine dimensions without packaging (mm) 2225 x 1120 x 770 Weight (kg) 465 Standard equipment Precise drive controlled via a frequency inverter Digital speed display Continuously variable belt speed Balanced band pulleys Hard rubberized running surfaces Hardened and ground guide jaws LED work light Height-adjustable guide arm Machine color RAL 7005 / RAL 7035 12 months warranty for single-shift operation OPTIONAL, article no. 410.020 Machine price € 15,450,- Fodpfxeir Ey Ie Aayepl including minimum quantity lubrication and length stop DELIVERY: FREE DELIVERY (within Germany) NOT THE RIGHT MACHINE? WE ARE A FLOTT SUPPORT PARTNER AND CAN OFFER YOU ALL PRODUCTS FROM THE FLOTT RANGE! ASK FOR A QUOTE!

Condition: as good as new (ex-display), Suitable for shelving systems: Shelving system: SSI Schäfer Type: R 3000 Included in the scope of delivery: 01x Impact protection guardrail, 2nd quality Material color: yellow/black/galvanized Overall height: 400 mm Overall depth: 180 mm Fedpfx Aeib H Dtsayjpl Clear width: 400 mm Consisting of: 01x CS Sigma profile, 2nd quality Material color: Sendzimir galvanized Profile dimensions: 300 x 75 x 15 mm Profile type: CS300-2.0 Material thickness: 2.0 mm Length: 300 mm 02x L-shaped impact protection corners, new Material color: yellow/black According to DIN standard Overall height: 400 mm Leg length: 170 x 170 mm Material thickness: 5 mm Weight/piece: 6.10 kg 08x Screws: M12 08x Nuts: M12 16x U-washers: M12 The impact protection guardrail is delivered completely pre-assembled.

Condition: as good as new (ex-display), Year of construction: 2025, operating hours: 500 h, functionality: fully functional, machine/vehicle number: 25-029, total width: 800 mm, total length: 4,700 mm, total height: 1,900 mm, type of input current: three-phase, energy consumption: 2 kWh, Very good metal separator (inductive sorter) for separation of all kinds of metal (incl. stainless steel). Can be used before ECS, behind or stand alone. Ejecting of all metals larger 0.5 / 1 mm possible. Reasonable using for material up to 60 % metal content. Unique flap technology, no pressured air necessary. Machine is ready for using, can be visited or tested. If wished can be equipped with camera. Fsdpfx Aasqabm Ejyopl If the machine is too small we can build also bigger. It is our demonstration machine. Throughput / capacity depending on material and purpose. Price on negotiation!

Year of construction: 2025, condition: new, Dimensions (L/W/H) 2650x950x1850 mm Weight 2100 kg Fpjdpfsvz Ewrsx Aayol Total power requirement 15 kw

Condition: excellent (used), Year of construction: 1985, Control: Philips B2T Swinging diameter: 640 mm Machining diameter, longitudinal: 550 mm Fpedpfx Aszpy Rrjayjl Machining diameter on the turret: 450 mm Turning length: 1000 mm Spindle speed: 2,240 rpm Spindle bore: 103 mm 12-position turret, VDI 60 Chip conveyor

Condition: used, Granit marble ATELIERS MAITRE Length: 2000 mm Width: 1200 mm Thickness: 400 mm Height on feet: 910 mm Class 2 Weight: approx 2 T Fpsdpozww Udsfx Aayol

Condition: used, Centrifugal fan, Fan, Exhaust fan, HRV 56N-400/M GL 360, used machine Manufacturer: Venti Oelde Type: HRV 56N-400/M GL 360 Overall dimensions: 1050 × 1120 × 1010 mm Weight: 280 kg Airflow capacity: 14,400 m³/h Year: 2014 Fsdpfx Aajzwz Tdeyepl Electrical data: 22 kW, 400 V, 50 Hz, 39 A

Condition: used, Year of construction: 1999, total length: 7,200 mm, total width: 1,100 mm, total height: 1,700 mm, Colour: Grey Weight: 750 kg - Year: 1999 - Documentation available: No - CE marking present: Yes - CE certificate present: No - Serial number: 251855 - Main motor power [kW]: 2.2 - Max. cutting length [mm]: 6000 - Max. cutting depth [mm]: 160 - Min. saw blade diameter [mm]: 200 - Max. saw blade diameter [mm]: 400 - Arbor saw blade diameter [mm]: 30 - Spindle speed: Manual - Min. spindle speed [rpm]: 2800 - Max. spindle speed [rpm]: 2800 - Voltage [V]: 400 - Current consumption [A]: 11.2 - Fuse [A]: 16 - Power [kW]: 4.5 - Transport dimensions: 7200mm x 1100mm x 1700mm (l x w x h) - Transport weight [kg]: 750kg - Transport packages [pcs.]: 1 Financial information VAT: The price shown is exclusive of VAT VAT/margin: VAT deductible for entrepreneurs Fedezwl Avepfx Aayspl Delivery and trade-in always possible for everything in the industrial sectors Yorick Diebels

Condition: new, functionality: fully functional, machine/vehicle number: 15340, Year of construction: 2027, load capacity: 4,500 kg, lifting height: 20,600 mm, fuel type: diesel, mast type: telescopic, construction height: 3,040 mm, power: 85 kW (115.57 HP), fork carriage width: 1,320 mm, fork length: 1,200 mm, empty load weight: 14,900 kg, total length: 6,730 mm, drive type: Diesel, construction width: 2,480 mm, Rotating telescopic forklift Chassis number: 15340 Fork width: 125 mm Fork thickness: 50 mm ISO class: ISO class 4 = 5,000 - 10,000 kg Mast type: Telescopic Speed class: 20 Condition: New machine Technical condition: New Front tire type: Air Front tire condition: New Rear tire type: Air Rear tire condition: New Fpsdpfxezwrv Ao Aayol Description: Secure your new machine now – only a limited number of units available! Heater, fully enclosed cab, CE certificate, interior mirror, LED, seat, - Tires – ASCENSO MPB400 – 18–19.5 18PR 165B - Interior rearview mirror - LED work lights front and rear - Starter battery with high capacity – 2 × 12 V – 180 Ah – 1200 A - Wheel chock - Market Germany – 20 km/h (12.4 mph) - Easy Link - CE machine approval - Operating manual German - Maintenance manual German

Condition: new, functionality: fully functional, machine/vehicle number: HR14346, Year of construction: 2026, load capacity: 4,500 kg, lifting height: 18,000 mm, fuel type: diesel, mast type: triplex, construction height: 3,040 mm, power: 85 kW (115.57 HP), fork length: 1,200 mm, empty load weight: 14,100 kg, total length: 7,260 mm, drive type: Diesel, construction width: 2,420 mm, Rotatable telehandler Chassis number: HR14346 Fork width: 120 mm Fork thickness: 50 mm ISO class: ISO class 3 = 2,500 - 4,999 kg Mast type: Triplex Gearbox: Hydrostatic Condition: New device Technical condition: New Front tires type: Solid rubber Front tires size: CAMSO A8 158 4LR1 4057020 14PR Front tires condition: New Rear tires type: Solid rubber Rear tires size: CAMSO A8 158 4LR1 4057020 14PR Rear tires condition: New Description: 12 month factory warranty / Max. 2000 operating hours Fpodpfxoyn Tcmo Aayel STVZO, full cabin, CE certificate, interior mirror, exterior mirror, joystick, seat, battery 2x12V wheel chocks TÜV preparation

Condition: excellent (used), Year of construction: 2011, Arburg 520H 1500-400 e² / Hybrid Machine Year of manufacture: 05.2011 Injection unit: Screw diameter: 40 mm Shot weight: 184 g Injection pressure: 2000 bar Dosing volume: 201 ccm Clamping unit: Clamping force: 150 t Tie bar spacing: 520x520 mm Platen size: 695x695 mm Ejector: electric Clamping unit: toggle Control system: SELOGICA - Touchscreen Additional equipment: Hybrid machine: energy-saving and very quiet Euromap 67 Robot interface Core pull control Control system with hot runner system x 8 Injection unit hardened - bimetal Main motor of the machine - driven by a servo motor with inverter - energy saving The injection unit is driven by a servo motor, which is controlled by an inverter Machine with cylinder / battery with compressed nitrogen (additional charge for fast operation) Central lubrication Parallel movements Fodjzy I Iaspfx Aayepl Priamus sensor - tool pressure control Dimensions: Weight: 6010 kg Length/Width/Height: 4.67x1.56x2.21 m All machines offered are started by our service technicians before sale. It is possible to obtain a video of the technical tests of the selected machine or to participate in technical live tests at our company in Łódź. Price: On request

Condition: excellent (used), Year of construction: 2008, Arburg 470C 1500-400 with the Wittmann W711 robot Year of construction: 2008 Fedpfx Ajzy I H Aoayspl Injection unit: Screw diameter: 45 mm Injection weight: 232 g Injection pressure: 1580 bar Metering volume: 254 ccm Clamping unit: Clamping force: 150 t Distance between tie bars: 470x470 mm Size of the clamping platens: 650x650 mm Ejector: hydraulic Clamping unit: hydraulic Control system: SELOGICA touchscreen Additional equipment: Euromap 67 Robot interface Air valve x 1 Hardened injection unit - bimetal Proportional valve on the injection unit - precise injection Robot Wittmann W711 Year of construction: 2007 4-axis robot: 3 axes are driven by servomotors (electric); axis C Travel in axes: X-420, Y-1200, Z-2000 Touch control panel The safety package for robots Robot with adapter Purchase of the robot for an additional charge Dimensions Weight: 4900 kg Length/width/height: 4.44x1.63x2.09 m Drive: Pump/motor: 18.5 kW Heating output: 9.7 kW Total output: 28.2 kW All offered machines are started by our service technicians before sale. It is possible to obtain a video of the technical tests of the selected machine or participate in live technical tests at our company in Łódź. Price: On request

Condition: used, mileage: 161,500 km, power: 235 kW (319.51 HP), first registration: 03/2015, fuel type: diesel, empty load weight: 9,500 kg, maximum load weight: 16,500 kg, overall weight: 26,000 kg, tire size: 315/80R22.5, axle configuration: 6x2, wheelbase: 3,900 mm, next inspection (TÜV): 03/2027, brakes: constant throttle, color: orange, driver cabin: day cab, gearing type: automatic, emission class: euro6, suspension: steel-air, number of seats: 2, Equipment: ABS, additional headlights, air conditioning, cabin, cruise control, differential lock, fog lights, immobilizer system, onboard computer, power assisted steering, seat heater, traction control, Vehicle location: en route / in transit, house delivery, 1 comfort seat, seat heating, electric mirrors, heated mirrors, electric window left, electric window right, air conditioning, sun visor, cruise control, ABS (anti-lock braking system), traction control (ASR), constant throttle, auxiliary drive, automatic transmission, differential lock, fog lights, work lights, rotating beacon, leaf and air suspension, last axle can be lifted and steered, side aluminum underrun protection, sunroof, green environmental badge. Fedpfxezym S Do Aayepl Wheelbase: 3900 mm. Transmission: ZF 12AS-2130 DD 'MAN TIPMATIC' ASF! All information is provided without guarantee as the vehicle is currently en route! ACCESSORY INFORMATION WITHOUT GUARANTEE, subject to change, prior sale, and errors!

Condition: excellent (used), Year of construction: 2015, Arburg 270C 400-70 Year of manufacture: 11.2015 Injection unit: Screw diameter: 22 mm Shot weight: 31 g Injection pressure: 2000 bar Dosing volume: 34 ccm Clamping unit: Fpodpfx Aaezy Icwjyol Clamping force: 40 t Tie bar spacing: 270x270 mm Size of clamping plates: 446x446 mm Ejector: hydraulic Clamping unit: hydraulic Control system: SELOGICA - Touchscreen Additional equipment: Euromap 67 Robot interface Hydraulic core pull x 1 Hardened injection unit - bimetal Proportional valve on the injection unit – precise injection Dimensions: Weight: 2210 kg Length/width/height: 3.18x1.43x1.98 m All machines offered are started by our service technicians before sale. It is possible to obtain a video of the technical tests of the selected machine or participate in live technical tests at our company in Łódź. Price: On request

Condition: excellent (used), Year of construction: 2012, Arburg 680CB 400-170 / Vertical injection molding machine, tie-bar-less / Very good technical condition. Year of manufacture: 2012 Injection unit: Screw diameter: 25 mm injection weight: 54 g Injection pressure: 2500 bar Metering volume: 59 ccm Clamping unit : Fsdpfxozy Ibyo Aayepl clamping force: 40 t tie bar distance: 0x0 mm Ejector: hydraulic Clamping unit: hydraulic Control system: SELOGICA - touch screen Additional equipment: Very good technical condition Vertical injection molding machine, tie-bar-less Euromap 67 Robot interface Air valve x 3 Hydraulic core puller x 3 Hot runner control x 12 Injection unit hardened - bimetal Proportional valve on the injection unit - precise injection It is possible to change the screw diameter The machine has been regularly serviced by the authorized service Arburg Original Arburg mold crane Dimensions: Weight: 6500 kg Length/width/height: 1.97x1.69x3.40 m All offered machines are started by our service technicians before sale. It is possible to get a video of technical tests of the selected machine or participate in live technical tests in our company in Łódź. Price: Upon request

Condition: used, machine/vehicle number: 008502, Max. panel width: 3800 mm Max. panel length: 3800 mm Fjdey Edp Hjpfx Aayopl Main saw blade projection: 115 mm No of Grippers: 11

Year of construction: 2025, condition: new, Bulk Bag unloading system with lifting crane incl. vacuum pump with a capacity of up to 400kg/h. - Specification of the lifting crane: max. weight per bag: 1T; max. bulk bag size: L1200xW1200xH1700mm; machine dimensions without side crane: L1740xW1740xH5400mm; - Specification of the vacuum pump: Capacity: max. 400kg/h; power: 380V, 1.5kW; hopper diameter: 290mm; discharge diameter: 213mm; height of vacuum pump: 800mm. Fpedpfxov Nk A Nj Aaysl That machine/system is available in different versions for different packaging sizes and with different packaging speeds. Please note that our new prices are often below the usual used prices. Please feel free to inquire and tell us your packaging task. - Usually 30-50 different new machines are available immediately from stock. In addition, we have very short delivery times from approx. 3 weeks for customized machines. Deviations from the sample photo are possible. - All machines are available with full warranty.

Condition: used, functionality: unexamined, Ferwood Code: RU0012096 - Manufacturer Code: 6ES7421-1BL00-0AA0 - Condition: Used - Functionality: Not tested - Compatible Machine: HOLZMA panel saw - If interested, we offer a refurbishment service, please contact us. Fjdpfx Aszmhrfjayjpl

Condition: refurbished (used), HEINEMANN DN 400 TV 16 CNC LATHE DISTANCE BETWEEN CENTERS: 4500 MM MAX. SWING OVER BED: 870 MM MAX. SWING OVER CROSS SLIDE: 610 MM SPINDLE SPEED: 1400 RPM SPINDLE BORE: 130 MM AUTOMATIC TURRET: 12 STATIONS SPINDLE MOTOR POWER: 85 KW MACHINE COMPLETELY OVERHAULED AND RETROFITTED Fjdpfx Aajzzdvpsyepl CNC CONTROL: SIEMENS EQUIPPED WITH AUTOMATIC STEADY REST IN CYCLE

Condition: ready for operation (used), This used Jungheinrich Esmena pallet racking system is a compact, high-performance heavy-duty racking solution for industrial storage requirements. The modular high-bay racking is ideal for logistics, industry, large warehouses, and freight forwarding companies. With a shelf load capacity of up to 1,500 kg per level and a bay load of up to 3,000 kg, this immediately available pallet racking system offers an efficient solution for the storage of Euro pallets and heavy loading units. PRODUCT DETAILS: - Height: approx. 400 cm - Depth: approx. 105 cm - Length: approx. 3,080 cm - Shelf load: 1,500 kg - Beams: approx. 270 cm - Beam colour: yellow painted - Uprights: approx. 400 x 105 cm, pre-assembled - Upright colour: blue painted - Levels: Floor + 2 Fpodpfxezzacfe Aayel - Pallet spaces: 99 including floor positions - Version: Used Jungheinrich Esmena SCOPE OF DELIVERY: - 12 x Uprights (approx. 400 x 105 cm), pre-assembled - 44 x Beams (approx. 270 cm) - 88 x Safety pins Price: €2,200 net €2,618 gross You will receive an invoice with VAT shown separately. DELIVERY, INSTALLATION & INSPECTION: - Nationwide delivery within Germany via our partner carriers – freight costs depending on postal code - Professional assembly and disassembly by trained teams available as an option - Rack inspections in accordance with DIN EN 15635 by certified inspectors - Inspection of existing heavy-duty racks from other manufacturers also possible PLANNING & CONSULTATION: Our planning department will be happy to provide you with a non-binding quote – tailored to your specific requirements. Whether new construction, conversion, or expansion – we provide expert advice for your racking configuration. SHOWROOM: Feel free to visit us in our showroom! On site, you can get an in-depth look at our pallet racking, shelving systems, and other storage solutions. Many systems are assembled and ready for demonstration. Our specialist advisors are available to answer your questions and provide individual consultation – we look forward to your visit! Haven’t found the right solution yet? Visit our website for a quick overview of many offers and product variations! INTERESTED OR HAVE QUESTIONS? Simply contact us via message or phone. You can find our phone number on our company page. ☎️ We are available by phone Monday to Friday, 8:00 am to 4:00 pm. Alternatively, send us a message with your name and number, and we will get in touch with you as soon as possible.

Condition: new, Year of construction: 2022, 13.35 rm. Wide span shelving 80 cm deep , Workshop shelving , Storage shelving , Large shelving , Manual storage , Shelving , Small parts storage Data : - Height : approx. 200 cm - Depth : approx. 80 cm - Length : approx. 13.35 running meters Shelf offer consisting of: - 08 x frame approx. 200 x 80 cm, disassembled. - 56 x traverse approx. 185 cm. - 28 x support shelf approx. 184.5 x 79.5 cm. - 56 x beam / load distributor. - Incl. safety pins - Model : BLT , Type WR20/80 - Load: 400 kg shelf load, with evenly distributed load. - Levels: 4 x storage levels. - Chipboard, natural. - Uprights blue. - Galvanized beam - New from stock. - other quantities available! We can pre-assemble the frames for a small surcharge of 6€/net per piece. -- IMMEDIATELY AVAILABLE SEVERAL TIMES-- Price : 1724,00 € net Fpedpfx Aozy Uquoayol plus legally valid VAT. You will receive an invoice with VAT shown. Transportation : On request, delivery is carried out by our partner forwarding company, the costs for this depend on the zip code. Assembly : If required, our trained staff will be happy to assist you with the professional assembly and disassembly of your factory equipment. Our recommendation : Let us know what you need... We will be happy to help you with the realization of your projects, from planning and ordering to installation.

Year of construction: 2026, operating hours: 20 h, condition: new, functionality: fully functional, operating temperature: 60 °C, air pressure: 2.5 bar, conveyor belt width: 400 mm, heating capacity: 18 kW (24.47 HP), product height (max.): 200 mm, product length (max.): 800 mm, product width (max.): 400 mm, machine/vehicle number: 45664, Beltline / Conveyour Cleaning System 400 WRD is developed as a compact and efficient solution for parts washing directly in the production line. The Beltline Series is specifically designed for industrial parts washing and degreasing of components with a certain level of complexity or weight, or in applications where gentle handling is required. The energy-efficient design reduces both operating costs and manual handling, making the solution ideal for both small batch production and continuous operation. Standard equipment: Siemens PLC Grundfos pump Fodpfjzy Eqxsx Aayjpl Fully insulated construction Automatic level and pressure monitoring You can find technical details in the PDF attached document.

Condition: new, Cantilever shelf, double-sided, new goods Data: - H: approx. 400 cm Fpodpfx Aaszy Uy Nsyel - W: approx. 256 cm - L: approx. 18.45 linear meters - Cantilever arms: approx. 120 cm - Axle dimension: approx. 131 cm - New goods from the factory - Double-sided - 500 kg load per arm - 2250 kg load per stand - Stands in hot-dip galvanized. - Cantilever arms in hot-dip galvanized. - Arms are screwed. - Arms adjustable in 200 mm increments. - Levels: base + 4 storage levels (5 storage levels) - Delivery time approx. 4 weeks Shelf consists of: - 015 x stands, double-sided, including base approx. 400cm made of IPE160. - 120 x cantilever arms approx. 120 cm made of IPE 80, without deflectors - including all necessary connecting elements and screws. Why BLT cantilever racks? - Certified German manufacturer DIN EN 1090 - Made in Germany - All specified load capacities of the shelf uprights and cantilever arms can be statically verified, at 100% load. - All shelving systems are supplied in hot-dip galvanized versions. They can therefore be set up inside and outside and do not rust like painted systems. Consistent appearance for many years. - We use the legally required hot-dip galvanized screw sets in accordance with DIN EN 15048-1 - Long availability guarantee - The stand base and stand back are welded together, which provides additional safety and short assembly times because the feet do not have to be screwed to the stand back. - Brackets made of angle steel, so no adjustment using turnbuckles is necessary. This shortens the assembly time. - No slotted hole system, so no weakening of the stand profile. Price: €12,450.00 net plus statutory VAT. You will receive an invoice with VAT shown. Transport: Delivery is carried out by our partner shipping company on request, the costs for this depend on the postcode. Assembly: Our trained staff will be happy to assist you with the professional assembly and disassembly of your business equipment if required. Our recommendation: Let us know what you need... We will be happy to help you with the realization of your projects, from planning to ordering to assembly.

Condition: new, Extraction capacity of filter unit at spigot*: 2600 m³/h (free-eye) Total power consumption*: 0.62 kW Operating voltage: 400 V, 50/60 Hz,3Ph+PE Noise level*: 66 db(A) Fodpfx Aaopkwauoyopl Dimensions L/W/H in mm: L 111 / W 508 /H 545 Colour: RAL 7035 Weight: 111 kg Manufacturer: ISI Industrieprodukte GmbH *Depending on filter equipment Special voltage or special colour on request NEW: Pre-filter system (optional) Application: Extraction of oil mist, emulsion mist (for emulsions with higher oil contents) and smoke, for small to very large machine workrooms | Oil mist separator. Your advantages of the ELBARON series: - 18 unit variants available - Direct from the manufacturer - ISI-TRONIC as standard (digitalised filter control) - Electronically controlled EC fan as standard - Speed and air flow rate adjustable - Simplex (single-stage) or duplex (two-stage) available - Wide range of air flow rates available - Adaptable to pollutant load and air performance requirements - Large range of mounting and connection accessories - Quality Made in Germany We have developed the ELBARON® filter series for use in machining operations with pure oil or for separating oil mist and smoke (oil mist separator). For many years now, the digital electrostatic air filters of the ELBARON® series have been among the most efficient filter units on the market and are in use worldwide. Our filter units are already digitalised as Option and can be controlled, for example, with a laptop. The ELBARON® unit series comprises 18 unit variants and can be optimally designed for your application in terms of size and performance. ELBARON® units impress with their long service life and absolute functional reliability. Our electrostatic filter cells are dimensioned in such a way that the best possible filter efficiencies, service lives and trouble-free operation are achieved under economic aspects.