Used Rippert Extraction for sale (3,909)

Condition: good (used), Sawdust extractor,dust extraction,self-cleaning filter,vacuum ALKO FU RG Filter cleaned pneumatically with compressed air pulses during operation, thus high efficiency of the device. 5,5 Kw fan Capacity 5940 m3/h Filtration area 30m2 Vacuum 3000 Pa Air return with ventilation ducts and summer/winter flap Noise attenuator Manifold with pneumatic gates for connection with machines Bdsdpfx Ajip Nqkjkxjb Control cabinet with technical documentation. Customs sluice Additional 3 kw transport fan for transporting sawdust from the customs sluice Inlet 4 x 250 mm Dimensions: height - 4.35m Width - 1.45m x 1.45m

Year of construction: 2014, condition: excellent (used), Professional pneumatic cleaning cabin with dust extraction. It is used in power plants, cement and gypsum factories, mills and mixing companies, also in the chemical industry As in the metallurgical industry, dust can have a very negative impact on the health of personnel. By using cleaning cabins we prevent dust and hazardous substances from being carried into toilets, changing rooms etc. The cabin provides personnel with a simple option to to clean themselves during working hours, e.g. before The cabin provides staff with a simple option to clean themselves during working hours, e.g. before and during breaks in the morning and at midday and at the end of the shift. Exhaustion made in EX version Year of manufacture : 2014 Filtration surface: 16 m2 Capacity: 2500m3/h Bdodpfohm E S Aox Akxeb Vacuum: 2400 Pa The device is in very good condition

Condition: good (used), Year of construction: 2012, Complete extraction system for DMG DMU 125 P for sale Bdsdpfjyplx Ajx Akxjb

Condition: used, Year of construction: 2016, operating hours: 16,859 h, type of input current: three-phase, suction capacity: 5,000 m³/h, filter area: 80 m², NOVUS AirTower Filter Ventilation Tower, 5,000 m³/h. Industrial filter ventilation for welding halls — designed for a variety of technological processes in production plants, primarily for metalworking. Top-mounted air intake and draft-free air discharge at floor level — directly to workstations. Layered filter ventilation principle; the unit does not require ductwork installation. Cartridge filter elements — self-cleaning via compressed air pulses during operation. Filter cleaning by differential pressure — no compressed air loss. Layered ventilation principle: contaminated air is drawn in from above, filtered, and then released at floor level as clean, breathable air without causing drafts, at a velocity below 1.2 m/s, precisely where workers breathe. Covers a broad 270-degree area. The tower operates on the layered ventilation principle, recommended by trade associations and considered the most effective form of air circulation. Year of manufacture: 2016 Operating hours: 16,859 h Specifications: - 3.9 kW EC fan - Capacity: 5,000 m³/h - Filter surface area: 80 m² - Filter cartridges: 4 pcs - Additional high-efficiency final filter (F9 filtration class) provides increased air cleaning performance and additional protection for the fan in case of main filter failure. - 100 l dust collection drawer Bedpfxsyq Nl Ns Akxsdb - Very quiet operation: 75 dB(A) - Filtration efficiency: > 99.6% - Stock No.: 1109

Condition: good (used), Year of construction: 2009, Dust extraction,filtration,welding fume extraction,self-cleaning cartridge filter,pneumatic,vacuum TEKA AIRTECH P24 The main areas of application for the systems are industrial plants/welding shops where it is where it is not possible to realize spot extraction point extraction or where point extraction is not sufficient to maintain clean air on the shop floor. Side-mounted ducts with point capture point sucks in contaminated air air and lead it to the filter section. Here, contaminants in the form of fine particles cover the surface of the filter patron filter. An administered pulse of compressed air cleans the cartridge filters, automatically at the required intervals. After the impact of the compressed air, the particles collected on the surface of the filters break off off and fall into the dust tank. The cleaned air is returned to the work room through individually adjusted long-range nozzles. At the same time ejection of the purified air directs the contaminated air of the hall towards the toward the extraction channels. Filter cleaned by microprocessor controller with compressed air pulses during operation, thus high efficiency of the device. Low demand for compressed air thanks to the system "Power-Spray" Bdedpfel Dw U Dox Akxeb The AIRTECH unit series is certified by IFA in accordance with EN ISO 15012- 1 or DIN EN ISO 21904-1/-2 and approved for welding fume class W3 as a permanent local extraction device of welding fumes. Parameters: Capacity - 24 000 m3/h Motor power - 15 Kw Fan in sound-absorbing housing Control cabinet with electrical documentation Year of production - 2009 Dimensions: Height - 6.80 m Base width - 1.95 m x 1.90 m Total width - 3.60 m x 2.00 m We have several pieces on offer. The price given in the ad for 1 piece.

Condition: good (used), Year of construction: 2010, Dust extraction,filtering,welding fume extraction,self-cleaning patron filter,pneumatic,vacuum TEKA AIRTECH P18. The main areas of application for the systems are industrial plants/welding shops where it is where it is not possible to realize spot extraction point extraction or where point extraction is not sufficient to maintain clean air on the shop floor. Bjdpfxjib Dade Akxodb Side-mounted ducts with point capture point sucks in contaminated air air and lead it to the filter section. Here, contaminants in the form of fine particles cover the surface of the filter patron filter. An administered pulse of compressed air cleans the cartridge filters, automatically at the required intervals. After the impact of the compressed air, the particles collected on the surface of the filters break off off and fall into the dust tank. The cleaned air is returned to the work room through individually adjusted long-range nozzles. At the same time ejection of the purified air directs the contaminated air of the hall towards the toward the extraction channels. Filter cleaned by microprocessor controller with compressed air pulses during operation, thus high efficiency of the device. Low demand for compressed air thanks to the system "Power-Spray" The AIRTECH unit series is certified by IFA in accordance with EN ISO 15012- 1 or DIN EN ISO 21904-1/-2 and approved for welding fume class W3 as a permanent local extraction device of welding fumes. Parameters: Capacity - 18 000 m3/h motor power - 11Kw vacuum - 2250 Pa Filtration area - 324 m2 ( 9 filter cartridges 36m2 each) Fan in sound-absorbing housing Control cabinet with electrical documentation Noise level - 72 dB Year of production - 2010 Dimensions: Height - 5.00m Base width - 1.44m x 1.44m Width with outlet channels - 8.5m Total weight about 2400 kg

Condition: excellent (used), Year of construction: 2020, functionality: fully functional, power: 3 kW (4.08 HP), input voltage: 400 V, input current: 5 A, input frequency: 50 Hz, Equipment: CE marking, documentation/manual, For sale: Losman air cleaning units in excellent condition, suitable for applications such as removing oil mist generated in metalworking. The cleaned air is returned to the workspace, and the condensed coolant collected during filtration can be recycled. There are 2 units available, one of which is from 2014. Both units have had their filters replaced. Bdsdpfx Akoyk Sknexsb

Condition: good (used), Year of construction: 1998, filter area: 84 m², suction capacity: 2,000 m³/h, Dust extraction, welding fume extraction, cartridge filter self-cleaning, pneumatic, vacuum for plasma, laser, sandblasting, soda blasting, shot blasting and all kinds of dry dust. The filter is cleaned pneumatically by impulses of compressed air during operation, which makes the device highly efficient. Fan on the clean side, which reduces the risk of explosion to a minimum. Built-in 4 Kw fan Capacity of 2000 m3/h Filtration area 84 m2 Cartridge filter cartridges - 4 pieces. Inlet diameter 200 mm Length - 1.80 m Bodpfottkgxex Akxjdb width - 1.10 m height - 1.80 m

Condition: ready for operation (used), Year of construction: 2003, functionality: fully functional, filter area: 378 m², Equipment: documentation/manual, Venti Oelde Extraction System RK 126 ZS 3 – Industrial Quality, Airflow approx. 43,800 m³/h, 378 m² Filter Surface, Year 2003, incl. 3 Fans, incl. Pipework, incl. Air Recirculation, excl. Spark Extinguishing System For sale is a high-quality extraction and filtration system from Venti Oelde (Type RK 126 ZS 3) with an airflow of approx. 43,800 m³/h. This system is ideal for medium-sized manufacturing operations, offering an excellent combination of performance, size, and integration capability. Bdjdjywflmopfx Akxob 👉 Particularly interesting for companies seeking a powerful yet easily integrable central extraction solution. Technical Specifications - Airflow: approx. 43,800 m³/h - Filter surface: approx. 378 m² - Year of construction: 2003 - Main fan: approx. 45 kW - Auxiliary fan: approx. 22 kW - Total power: approx. 67 kW - Robust industrial-grade construction Scope of Delivery - Filtration system - Fans - Piping system - Incl. air recirculation - Rotary valve - Steel structure - Controls / switch cabinets (if available) Condition - System was in industrial use - Fully operational until dismantling (according to previous owner) - Well-maintained overall condition - Viewing expressly encouraged Special Features - Excellent ratio of performance to size - Much easier to integrate compared to large-scale systems - Powerful drive units (45 kW + 22 kW) - Immediately available – no lead times - Optional dismantling support can be organized at additional cost!!!! The machine offered is sold as a used system. Sale is made under exclusion of any liability for material defects. The machine is sold as inspected, with no warranty or guarantee of any kind. The seller provides no guarantee regarding functionality, performance or suitability for any specific purpose. Disclaimer Any liability for material defects is excluded. This does not apply to damages arising from injury to life, body or health, or in cases of intentional or grossly negligent conduct on the part of the seller. Dismantling and Transport Dismantling of the machine is the responsibility and at the expense of the buyer. The buyer bears all costs and risks for dismantling, loading, and transportation. Transfer of Risk Risk passes to the buyer at the latest when dismantling or loading begins. Other No liability is assumed for hidden defects. All machine information (e.g., year, operating hours, technical data) is provided to the best of our knowledge, but without guarantee.

Condition: good (used), Filter hose chip extraction, dust bag, filter, filter bag for chip extraction, dust extraction, extraction system, ventilation ducts and fittings, exhaust hose, extraction hose -Ventilation hose: Exhaust hose with flange -Flange: Ø outside 290 mm, slightly curved -Length: 3500 mm Bsdpfjpyk Nfex Akxedb -Number: 20 hoses available -Price: per piece -Weight: 1.6 kg/piece

Condition: used, suction capacity: 1,600 m³/h, negative pressure: 2,800 Pa, Mobile station welding fume extractor, dust extractor , filter ESTA SRF K-15 FM Fan of 2.2 Kw (three-phase) located on the clean side Extraction arm with a range of 3 m Capacity 1600 m3/h Vacuum pressure 2800 Pa Possibility to connect a second extraction arm( inlet 2 x 140mm) SRF K series is designed for extraction and filtration of welding fumes and light grinding dust. It is an excellent solution to the problem of welding fumes and other dust contaminants. Welding or soldering fumes are filtered with a filtration efficiency of 99.9%. The high airflow rate can even pull out large clouds of smoke. Automatic filter cleaning manually activated - after finishing work, connect the compressed air line to the device and manually start the filter cleaning procedure. The filter cartridge is automatically cleaned by pulses of compressed air through a rotary nozzle, which significantly extends the life of the cartridge. During welding, the device does not need to be connected to the compressed air network and thus remains mobile. Bodotpui Ispfx Akxjdb

Condition: used, Extraction system, central extraction system, room air filter system ETS Efficient Technical Solutions GmbH Central welding fume extraction system Year of construction approx. 2005 Volume flow approx. 5000 m³/h Extraction connection at filter inlet 1200 x 150 mm Exhaust air connection at filter outlet 400 x 300 mm Motor power 10 kW Bdedpjicic Hsfx Akxeb Mains connection 400 Volt, 50 Hz - Control cabinet for wall mounting - Pocket filter - Maintenance flap for filter change - Radial fan on top of the unit Space requirement L x W x H 2000 x 1650 x 3650 mm Transport height without fan 3100 mm Weight approx. 2000 kg Very good condition

Condition: used, Welding fume extraction unit for wall mounting, KEMPER extraction device Type 85400 Serial number: 279092 Year of manufacture: 1997 Volume flow: 1700 m3/h Static pressure: 2000 Pa Extraction connection: Ø 250 mm Motor power: 1.5 kW Power supply: 400 Volts, 50 Hz - Radial fan - Designed for a mechanical air filter with approx. 99% separation efficiency - Main filter defective (surcharge for new main filter: EUR 195 net) - Articulated extraction arm Ø 150 mm, approx. 2 meters long - Extraction pipe with 3 joints and extraction hood (adapter connection to filter housing missing) - No external control unit, without filter monitoring, without start switch - Air outlet: 250 x 140 mm Required space (L x W x H): 680 x 660 x 1100 mm Weight: approx. 120 kg Good condition Bjdpfx Aeu S Tfgekxsdb Surcharge for new main filter: EUR 195 net

Condition: excellent (used), Year of construction: 2016, functionality: fully functional, overall weight: 875 kg, volume flow: 2,750 m³/h, Donaldson dry extraction unit for sale Capacity: Bsdpfx Asulgl Iskxjdb Q 2.750 m³/h 5,5 KW further technical data see pictures Condition very good. Can be viewed at any time

Condition: used, Substation for wood chip extraction – Wood chip extraction system Brand: Fida Installed power: 37 kW System equipped with 98 filter bags (Ø 250 mm, height 2810 mm), designed to ensure high suction and filtration capacity. Bsdpfx Akjyx Digoxsdb Overall dimensions: 8500 x 2500 mm

Condition: like new (used), Year of construction: 2024, machine/vehicle number: 35.09.021.24, functionality: fully functional, operating hours: 285 h, power: 11 kW (14.96 HP), input voltage: 400 V, input current: 22 A, input frequency: 50 Hz, type of input current: three-phase, volume flow: 8,000 m³/h, intake vacuum (max.): 30 mbar, suction capacity: 9,000 m³/h, intake manifold diameter: 350 mm, filter area: 16 m², noise level: 76 dB, actuation type: electric, total height: 2,260 mm, total length: 2,275 mm, total width: 1,140 mm, overall weight: 350 kg, year of last overhaul: 2026, Equipment: CE marking, documentation/manual, Dear Sir or Madam, Due to an upcoming company takeover and the expansion of our joinery, we are selling our Felder extraction system, which is only 1.5 years old. The machine is in like-new condition and has all inspection and testing documentation available. Should you have any further questions, we are at your disposal. Information: Commercial and industrial woodworkers benefit from Felder clean air extraction units, tested for wood dust, available in various price and performance categories. Mobile and space-saving, the RL 125, RL 140, RL 160, RL 200, RL 250, RL 300, and RL 350 models offer flexibility and top performance in minimum space. All models achieve a residual dust content of less than 0.1 mg/m³, meeting dust class H3 requirements. Unlike conventional extraction systems, Felder positions the fan on the clean air side, generating a negative pressure throughout the system and preventing dust leakage in case of leaks. Bedpoyu Hw Djfx Akxedb Performance and speed adjustment via negative pressure measurement - Chip containers The longitudinally mounted chip containers ensure optimal filling of the chip bags. The optimized fastening system allows for quick bag changes. - Cartridge filters Greater filter area with similar space requirements Reduced filter load Maximized filter service life - JET cleaning system Continuous jet pulses of compressed air clean the filter automatically, ensuring consistently optimal extraction performance. - Machine connections High standard: water fire extinguisher and pneumatic filter cleaning. Optional: powder fire extinguisher. Further information can be found in the attached diagrams. This machine can be inspected and tested on site. ! This item is being sold used by our company. Exchange, return, and warranty are excluded!

Condition: excellent (used), Year of construction: 2010, Tekol / Trumpf Laser Welding System Tekol LAP S4 with TRUMPF TruPulse 44 and TBH GL230 Extraction Unit Description: For sale is a professional laser welding system Tekol LAP S4 equipped with an integrated TRUMPF TruPulse 44 pulsed Nd:YAG laser and TBH GL 230 extraction and filter unit. This system is an enclosed precision laser welding station designed for fine, pinpoint, and low-distortion welding of metal components. The pulsed laser enables highly controlled heat input, clean weld spots, and reproducible results. Ideal for precision engineering, toolmaking, repair welding, prototyping, and small series production. Enclosed safety housing with protection system, control panel, rotary indexing table, and extraction/filter system. Technical Data – Tekol LAP S4 Operating voltage: 400 V ~ N / PE Mains type: 3~ 400 V, 50 Hz Nominal current: 32 A (approx. 22.5 kVA) Control voltage: 24 V DC Dimensions: Length: approx. 1330 mm, Depth: approx. 1300 mm, Height: approx. 2030 mm Weight: Machine: approx. 800 kg Travel: X-axis: approx. 160 mm Y-axis: approx. 100 mm Z-axis: approx. 100 mm Rotary indexing table: 2-station Technical Data – Laser TRUMPF TruPulse 44 Laser type: Nd:YAG pulsed laser Wavelength: 1064 nm Max. average power: 42 W Min. pulse power: 201 W Max. pulse power: up to 3 kW Pulse duration: 0.2 – 50 ms Max. pulse energy: 30 J Bdodpfx Akeyi Sgaoxob Max. pulse frequency: up to 900 Hz Beam parameter product: 16 mm·mrad Technical Data – Extraction Unit TBH GL 230 Voltage: 230 V / 50–60 Hz Power: 0.36 kW Free-blowing air volume: approx. 390 m³/h Effective air volume: approx. 330 m³/h Max. negative pressure: 4000 Pa Sound level: approx. 51 dB(A) Weight: approx. 40 kg Multi-stage filter system: - Pre-filter - Particle filter - Activated carbon filter Total weight approx. 900 kg Condition: used Scope of supply: (see photos) - Tekol LAP S4 laser welding system - TRUMPF TruPulse 44 laser unit - TBH GL 230 extraction unit - Documentation / folders / data carriers - Keys and accessories as shown (Specifications and technical details are subject to change and errors!) If you have further questions, please feel free to contact us by phone.

Condition: used, Year of construction: 1993, suction capacity: 1,500 m³/h, negative pressure: 3,600 Pa, Dust extractor,welding fume extractor by Herding. Self-cleaning, pneumatic filter for plasma, laser, sandblasting, sodding, grinding plaster, cement, plastic and all kinds of dry dust. The filter is cleaned pneumatically by pulses of compressed air during operation, thus high efficiency of the device. High-quality filter cartridges of HSL type are made of sintered polyethylene with the possibility of cleaning have several times longer service life compared to ordinary cartridges. As standard, the coating is made of PTFE, which in combination with the body material (PE) provides a very high chemical durability. 4 Kw fan Capacity - 1500 m3/h Filtration area - 38 m2 Control cabinet Bsdpfx Aetq Ufvokxjdb Inlet diameter - 180 mm Mag. no: 0848/2

Year of construction: 2025, condition: new, The PR EXC extraction arm is manufactured in accordance with the requirements of ATEX Directive 94/9/EC concerning equipment intended for use in potentially explosive atmospheres. The extraction arm meets the requirements of Equipment Group II for gases and dusts. The local extractor is therefore suitable for workplaces requiring the safe handling of explosive gases and dusts. The device is suitable for use in Zone 1 or 21; these are areas where an explosive atmosphere is likely to occur during normal operation. Application The design and features are unique, as highlighted: Exceptionally easy to handle, especially due to its stable positioning, the extraction arm features an optimally designed hood, maximum extraction efficiency, and maximum collection capacity. The ATEX environment PR arm is designed according to Fumex’s core principles: Support arms positioned externally Technical Data Length – 3000 mm Bedpoygurmsfx Akxsdb Dimensions – Ø 160 mm Marked EX II 2 GD Load-bearing parts with electroconductive powder coating and plastic parts made from electroconductive polypropylene.

Condition: ready for operation (used), Year of construction: 2002, machine/vehicle number: 560123, functionality: fully functional, volume flow: 16,000 m³/h, total length: 12,000 mm, total width: 2,400 mm, Equipment: CE marking, TECHNICAL DETAILS Capacity: 16,000 m³/h Number of filter bags: 180 pcs Connection diameter: 600 mm Main fan: 22 pcs Bjdpfxoyh Nyfs Akxjdb MACHINE DETAILS Dimensions (L x W): 12,000 x 2,400 mm EQUIPMENT CE marking

Condition: used, Year of construction: 2021, overall weight: 200 kg, input voltage: 400 V, total width: 800 mm, total length: 1,350 mm, total height: 1,500 mm, volume flow: 216 m³/h, space requirement height: 1,500 mm, space requirement width: 800 mm, space requirement length: 1,350 mm, filter area: 2 m², negative pressure: 31,500 Pa, power: 3 kW (4.08 HP), transport height: 1,500 mm, transport length: 1,350 mm, transport width: 800 mm, tank capacity: 80 l, No. 04520 Mobile extraction unit / mobile dust extractor ESTA WHISPERSOG 3.0 FM Unused, year of construction 2021, in new condition Industrial vacuum cleaner for cleaning work and machine extraction Bedpoylb Ixsfx Akxjdb The WHISPERSOG high vacuum cleaners work more quietly than conventional industrial vacuum cleaners with the same performance. They are designed for continuous operation and can be used not only as industrial vacuum cleaners, but also as mobile dust extractors for direct extraction on machines. By using permanent filter cartridges, operating costs can be significantly reduced compared to disposable filters. The dust produced can be easily disposed of using the patented tipping device. Areas of application: Removal of coarse, fine and free-flowing dust during cleaning work / Direct extraction of machines in continuous operation Motor power 3 kW Electrical connection 400 V Maximum negative pressure 31500 Pa Maximum air volume flow 216 m3/h Extraction nozzle diameter 50 mm Filter surface 2m2 Dust collection container 80 liters Potential-free contact for automatic activation when machine is started Including electrical connection cable with 16 A plug, 10 waste bags and technical documentation Transport dimensions approx. 1350 x 800 x 1500 mm LWH Weight approx. 200 kg To avoid possible misunderstandings, an on-site inspection is possible and recommended by appointment Sold as is Technical specifications, condition description, year of construction and scope of delivery according to manufacturer's brochure or previous owner, without guarantee Subject to prior sale For used machines, any warranty is excluded, the following applies: “sold as seen” Terms of payment: Prices plus VAT, payment before collection or dispatch Terms of delivery: ex warehouse

Year of construction: 2012, condition: good (used), functionality: fully functional, For sale is a CFT compact filter technic top-mounted dust extraction system, type HKAF 12-30 The system is fully functional and ready for use immediately after connection All documentation for the system available thanks to CFT Digital Contact details can be passed on after purchase. Technical data: Year of construction: 2012 Length: 2476 mm Width: 1277 mm Height: 2330 mm Weight: 600 kg Exhaust air flow rate: 28 m3/min Filter elements: 12 pieces Filter area: 30 m² Filter material PMB 600*500 Bdsdpfx Akerfcpmoxeb Shock valves: 4 pieces Rotary cycle control unit: 12 cycles Compressed air parameters: 4.5 bar Loading & or shipping possible for an additional charge Prices plus VAT Viewing possible by appointment. Contact us, our team will be happy to help you. Trade-in or exchange possible! Machines purchase / sale PURCHASE / SALE OF PRODUCTION & METALWORKING MACHINES AND MUCH MORE. Do you need a high-quality but inexpensive metalworking machine for your production? Or do you want to sell yours? For further information or contact options, please visit our website

Condition: excellent (used), functionality: fully functional, suction capacity: 900 m³/h, Exhaust extraction system for trucks, complete with 0.75 kW fan and hose reel, hose length approx. 10 m. Three units available. Bdedpfx Asyv R S Askxob

Condition: used, Year of construction: 2009, negative pressure: 16,000 Pa, filter area: 40 m², volume flow: 5,800 m³/h, RUWAC dust extractor, extractor, dust collector, vacuum filter, self-cleaning, dust collector for extraction of metal dust, mineral dust, hard fibers, combustible, hazardous, toxic substances and efficient collection of process dust, sandblasting, sodding, grinding, polishing and all kinds of dry dust. Thanks to the wide performance range, these devices are perfectly suited for almost all applications applications - both as a single-station solution and as a central solution. All dust collectors are equipped with large-size filters for dust class M. The unit in the version with dust explosion protection (ATEX zone 22) - EX II 3D , T= 70 °C The high-pressure fan is located behind the filter on the clean side, which reduces the risk of explosion to a minimum. Pocket filter cartridge - multi-pocket (area of 40 m2) 20 Kw fan. The unit has a frequency converter (Danfoss VLT). Capacity 5800m3/h Bdedpfx Aotqt Uxskxsb Vacuum 16,000 Pa Electromotive cleaning of the filter by means of vibrating motors. Complete with dispenser (for sticky dusts) for automatic addition of filter additives to protect filter cartridges. Inlet diameter - 300 mm

Condition: good (used), Year of construction: 2012, functionality: fully functional, volume flow: 18,000 m³/h, filter area: 120 m², Filter hose length 2000 mm Mechanical/pneumatic shaking Base assembly with agitator and screw discharge Bedpfx Aowhlkwskxjdb Gear motor 2.2 kW Connection for briquette press with air recirculation