Used Air Dry Machine for sale (82,709)

Condition: excellent (used), Year of construction: 2018, functionality: fully functional, Atlas Copco FX13 compressed air dryer, 10.02 m³/min Dkedpjyrdifjfx Aa Nel

Condition: excellent (used), Year of construction: 1998, Frame Dowel and Slot Mortising Machine by Hofmann HT 200 U with angle adjustment Specialized drilling machine for staircase construction, window manufacturing, and universal applications, featuring pneumatic height adjustment. Angled doweling and spindle boring for balusters can be easily performed thanks to the rotatable drilling unit. Motor with pole-changing capability, two speeds Dkjdpfjyfta Tsx Aa Njl Motor power 1.5 / 1.8 kW, 1400 / 2800 rpm Motor start via convenient handle switch Precision chuck with two inserts: 16mm and M10 thread Table size approx. 1100 x 240mm Linear laser for precise positioning of the workpiece Drilling unit can swivel 65° to the left and right Pneumatic adjustment of the working height, doweling on two levels without repositioning Desired drilling heights can be set for each level using a handwheel and digital counter; switchover is then performed pneumatically from the front Cross adjustment approx. 320mm, stepless or in 12mm increments Drilling stroke approx. 200mm 2 pneumatic workpiece clamps, positionable at the front and rear of the table 2 swivel workpiece supports 2 side stops, also usable as front supports Mobile base Extraction port 80mm 4 used but good drill bits: 9, 12, 16, 19mm Minor paint touch-ups; excellent condition—see original photos A used swivel slot mortising machine in this condition is very rarely available. CE mark User manual Dimensions approx. 1200 x 1200 x 1200mm (LxWxH), weight 310kg. The machine can be demonstrated by appointment at our premises. We only offer machines that are ready for demonstration in our warehouse—see "other offers from this seller."

Condition: excellent (used), Year of construction: 2009, Atlas Copco BD1400 heat regenerating adsorption air dryer Manufacturer: Atlas Copco Model: BD-1400 CE 400V/50 Hz, PDP-40 Year of manufacture: 2009 Volume: 3120 liters Working pressure: 11 bar Volume flow FAD: 1400 l/s / 5040 m³/h Voltage: 400 V / 50 Hz Power consumption: 32,5 kW Dimensions: approx. 2,720 x 2,639 x 2,548 mm Weight: approx. 4,500 kg The dryer incl. control were last in use and are in very good condition. The unit can be inspected by appointment in our warehouse in 76694 Forst. Dkodpfx Aajhl Sfdo Nel

Condition: like new (used), functionality: fully functional, Stringer milling device SCHEER TW 4 + Router HM 16 Everything is in excellent, like-new optical and technical condition, the device has been used very little. Fully functional—ready to use immediately. All machines are intended for commercial use, no DIY store scrap. Treppenwangenfräsgerät SCHEER TW 4 With this device, you can mill treads and risers very precisely and accurately. The hand crank even allows you to machine curved joint surfaces; you can also use it for recesses in other panel materials, such as worktops. Equipped with hardened guide rods, on which the cross support with router is mounted. Featuring ball bearing guide bushings, allowing the device to move very easily, accurately, and safely. The device can be clamped securely onto the stringer or similar workpieces using four screw clamps. The cross support has two stops each in both the longitudinal and transverse directions. Comes with two positioning angles. Complete with manual, tooling, and all accessories. Longitudinal milling travel: 750 mm; transverse milling travel has been increased from 75 mm to 320 mm, significantly expanding the machine's application range. To increase the milling travel, a new base frame made of aluminum profiles was manufactured. The modification work was carried out by a reputable engineering company. Everything works perfectly; this machine is a true one-off. Router SCHEER HM 16 Very good condition, with only minor signs of use. Very robust, thanks to triple-bearing router spindle. Accurate concentricity and flawless milling results. Precise column guidance and torsion-resistant milling table. Constant speed, even under heavy load. Equipped with high-performance motor (shows almost no signs of fatigue). Long service life thanks to soft start (full-wave electronics). Bearings are in good condition. The machine is suitable for the toughest continuous milling operations. Good visibility of the milling spindle; chips are blown away by a powerful fan. Dksdpoyxr T Tsfx Aa Nsl 220V, 1800W. Speed: 18,000 rpm. Fully functional. With M16 female thread mount.

Condition: as good as new (ex-display), Year of construction: 2022, machine/vehicle number: TR0055_ALMRD225, NEW COMPRESSED AIR REFRIGERATION DRYER ALMIG ALM-RD225 Type: ALM-RD225 incl. 2 x air filters Delivery quantity: 3,50 m³ / min * Compressed air connection 1 1/2 " Dimensions L x W x H: 555 x 505 x 874 mm Weight: 78 kg * Maximum compressed air flow, 35 ° C inlet temperature, 7 bar, 25 ° C ambient temperature, pressure dew point 3 ° C Visit our store. We always have a large selection of new and used compressors in stock! Available immediately. Dkedpfx Aajg Ufx Es Nel

Condition: good (used), Year of construction: 2001, functionality: fully functional, Manufacturer Fasti GmbH Model ERD 65 B Djdpfevzwrbox Aa Nekl Connected load 0.9 kW

Condition: used, Compressed Air Dryer PARKER HIROSS for Compressor Systems Mechanical Condensate Separator, Water Separator Refrigeration Dryer with water-cooled aftercooler for removal of water vapor and cooling of compressed air or gases. 1 unit Aftercooler Type WFN009 DHH16 Air flow rate (standard): 540 m3/h = 9,000 liters/min. Operating pressure (air): max. 16 bar Housing length: 1,020 mm Housing diameter: Ø 105 mm Threaded air connection: G 2" Threaded water connection: G 3/4" Weight of aftercooler: 11 kg Dimensions of aftercooler (L x W x H): 1,030 x 850 x 200 mm + 1 unit Water Separator Type CSP 008 Standard flow rate: 480 m3/h = 8,000 liters/min. Operating pressure: max. 16 bar Threaded connection: G 2" - Filter housing made of aluminum + 1 unit Mechanical Condensate Separator HIROSS SAC 120 Threaded connections: R 1/2" Dkedodzqn Uopfx Aa Nsl Operating pressure: 16 bar Volume: 0.8 liters - operates without compressed air loss All components assembled as shown in the photos Mounted height (upright): 2,000 mm Total weight approx. 40 kg 2 identical units available

Condition: new, Year of construction: 2025, functionality: fully functional, Stair milling machine for mortising treads and risers into stringers and posts. The machine is equipped with a high-frequency milling motor. The machine is brand new. 400 V, 50 Hz. Dkodpfoyxzacex Aa Nol

Condition: repair required (used), Year of construction: 2014, functionality: not functional, travel distance X-axis: 6,000 mm, travel distance Y-axis: 900 mm, travel distance Z-axis: 300 mm, CNC stair milling machine with 4 controlled axes. 4 units Yaskawa servo drives. Working length 5500 mm. Working width 900 mm. Working height 300 mm. HSD 7 kW milling motor with tool change system. 5-position fixed tool changer station. 8-position rotating tool changer station. 20 vacuum suction cups. Conveyor belt with chip removal and extraction connection. Enclosures (mechanical and light barriers). The machine requires a new central monitoring system in the control unit. The machine is in good technical and mechanical condition. Dkjdpfx Ajyxtn Eea Njl

Year of construction: 2026, condition: new, Steel heating and/or hay drying, as well as hay drying installations and drying cabins, installation in containers plug and play (ready for immediate use, also for rental), integration into container(s) or on-site in Switzerland, Austria, or Southern Germany. Power from 80kW up to 500kW, and on request >500kW. Warm air heaters in stock, both new and used! Pellet heater 200kW 19,000 m3/h – ask for our competitive prices! * Used!!! In stock: 1×200kW in container with 3-ton buffer tank * New!!! In stock: 2×200kW with pellet burner. Lanox.eu The Netherlands Dksdekytn Hepfx Aa Njl

Condition: used, Lower and upper drill, tiltable, for chair seats of Old America type or similar products Dksdpfx Asytr Edea Njl no. 4 independent lower groups, tiltable No. 2 upper vertical oscillating groups

Condition: used, New compressed air refrigeration dryer, unused compressed air dryer from stock Compressed air dehumidifier SMC type IDFA3E-23 Djdpfx Aaeyif I Uo Nokl Compressed air dryer, compressed air dehumidifier Serial No.: PP0213S Year of manufacture: 2011 SMC compressed air dryer IDFA size 3E Flow rate per hour: 12,000 liters/h (12 m³/h) Flow rate per minute: 200 liters/min. Operating pressure max. 10 bar Operating pressure: 0.15 to 1.0 MPa (manufacturer's specification) Refrigerant: R134a Temperature range: 5°C to 50°C Power consumption: 180 watts Power supply: 230 volts, 50 Hz, 1.2 amps Connection pipe thread: 3/8" - Stainless steel heat exchanger, air-cooled condenser - Condensate separator with automatic drain - Condensate drainage via hose Space required (L x W x H): 410 x 226 x 473 mm Weight: 18 kg New, unused, in mint condition from stock

Condition: good (used), Year of construction: 2015, MANUFACTURER: KAESER Dksdpfeyn Egkox Aa Njl MODEL: TF174 SERIAL NO.: 1216 YEAR: 2015/08 POWER (kW): 2.52 CAPACITY (m³/min): 17 PRESSURE (bar): 16

Year of construction: 2026, condition: new, The purpose of a compressed air refrigerant dryer is to lower the temperature of the compressed air and remove water and oil particles contained in the air flow. Refrigerant dryers are important in applications where moist air could cause corrosion, contamination or damage to tools, machinery or products. By removing moisture, the dryer increases the reliability and durability of compressed air systems. Djdpfx Aaemt Dcxe Nskl The refrigerant dryer is designed for maximum efficiency and durability. The main design elements include: 1. Air-to-air heat exchanger In the first stage of the process, the inlet air passes through a heat exchanger, where it is pre-cooled by the cooler air leaving the evaporator. By using countercurrent flow, heat recovery increases the energy efficiency of the entire system. 2. Refrigeration system evaporator In the second stage, the compressed air is fed to the evaporator, where it is cooled to a dew point temperature of 3°C. This results in the condensation of water vapor and oil particles contained in it. 3. Condensate separator After cooling, the gas and condensate mixture is fed to an efficient separator, where the condensate is separated and automatically drained outside the device. 4. Fan control system The variable speed fan technology allows intelligent adjustment of the cooling intensity to the actual demand, which reduces energy consumption and increases the service life of the components. Technical parameters Inlet/outlet pipe diameter (BSP) 1 1/2" Maximum operating pressure 10 bar Maximum inlet air temperature ≤ 38°C Dew point temperature 3°C Efficiency 7000 l/min Power 1.37 kW Power supply voltage 230 V Dimensions (L x W x H) 1000 x 550 x 920 mm Weight 95 kg Type and amount of refrigerant R410a, 900 g

Condition: as good as new (ex-display), The Plasma-Jet AirPro Compact 1530 Maxpro is a state-of-the-art plasma cutting machine designed for the Plasma Cutting Machines category, offering exceptional performance within the compact product group. Built for efficiency and reliability, this system features a one-piece design that ensures easy transport and rapid setup, ideal for custom and small-series manufacturing environments. With a cutting length of 3,050 mm and a width of 1,550 mm, the machine can handle substantial cutting tasks while minimizing operating costs. It comes configured with high-performance features such as a powerful MAXPRO 200 plasma source, an intuitive PULSER 3 CNC unit, and professional ProNest LT nesting software. The machine utilizes EtherCAT technology for optimal CNC performance, while the robust linear guides provide accurate, long-lasting operation. In addition, a built-in collision guard protects against damage, and a magnetic coupling allows for quick maintenance. Invest in your workshop's capabilities today by requesting a quote for the Plasma-Jet AirPro Compact 1530 Maxpro – a precise solution in the Plasma Cutting Machines product group. Dedeyg Dg Tspfx Aa Njkl

Condition: new, Year of construction: 2026, total length: 1,010 mm, total width: 680 mm, total height: 1,605 mm, power: 7.5 kW (10.20 HP), fuel type: electric, pressure (min.): 6 bar, pressure (max.): 8 bar, Equipment: CE marking, DUCOMP BRD 7.5kW - Screw compressor + Air Tank + Dryer In BRD Series Compressors, the compressor and Dksdpfxeygdk Eo Aa Nsl dryer are mounted on the air tank and their connections are made. It is shipped ready for operation thanks to its internal tank and dryer.

Condition: new, Year of construction: 2026, Complete Compressed Air Set: LUFT 1000 INVERTER Screw Compressor + 270L Vertical Air Receiver + IZBERG N10S Air Dryer This complete set includes the LUFT 1000 INVERTER screw compressor, a 270-liter vertical air receiver with full compressed air accessories, and the IZBERG N10S refrigerated air dryer. Designed for professional use, this system is ideal for industrial plants, workshops, and pneumatic installations that demand high performance, energy efficiency, and reliability. The LUFT series screw compressors by the Polish brand CORMAK incorporate the latest advancements in pneumatic technology, paired with high-quality components and materials. Low operating costs, user-friendly operation, robust construction, and high output ensure efficient and hassle-free performance. LUFT 1000 INVERTER Screw Compressor – Technical Specifications: Parameter Value Motor Power 7.5 kW Voltage 400V / 50Hz Output at 0–6 bar 990 L/min Output at 6 bar 950 L/min Output at 8 bar 950 L/min Output at 10 bar 930 L/min Outlet Connection (G) 1/2" Dimensions (L x W x H) 810 x 610 x 850 mm Weight 160 kg IZBERG N10S Refrigerated Air Dryer – Technical Specifications: Parameter Value Inlet/Outlet Pipe Diameter (BSP) 1" Max Operating Pressure 10 bar Max Inlet Air Temperature ≤ 38°C Dew Point Temperature 3°C Flow Capacity 1500 L/min Power Consumption 0.58 kW Power Supply Voltage 230V Dimensions (L x W x H) 380 x 600 x 625 mm Weight 31 kg Refrigerant Type & Quantity R134a, 400 g CORMAK 270L Vertical Air Receiver – Key Features: This 270-liter vertical air tank with an operating pressure of 11 bar is a reliable solution for storing compressed air in industrial environments. It acts as both a buffer tank and a stabilizer for compressor operation. Professional Pressure Vessel Construction – Made from high-grade, 4 mm thick steel, resistant to both pressure and corrosion. UDT Certification & CE Marking – Compliant with EU safety and quality directives. Operating Pressure of 11 bar – Suitable for most pneumatic systems, including those with higher pressure requirements. High Storage Capacity (270 L) – Ensures steady air supply and reduces compressor cycling frequency. Multi-connection Ports – Equipped with five outlets in 1¼", 2", and ½" sizes for versatile system integration. Durable Finish – Internal and external anti-corrosive coating ensures long service life. Space-Saving Vertical Design – Ideal for facilities where floor space is limited. Ideal for: Manufacturing facilities Automotive and industrial workshops Pneumatic tool and machine operation Dkjdpoxazlrofx Aa Nel Compressed air systems requiring stable pressure and high efficiency This comprehensive compressed air solution offers excellent energy efficiency, stable pressure control, and long-term reliability, making it a perfect fit for demanding industrial applications.

Year of construction: 2026, condition: new, functionality: fully functional, The purpose of a compressed air refrigerant dryer is to lower the temperature of the compressed air and remove water and oil particles contained in the air flow. Refrigerant dryers are important in applications where moist air could cause corrosion, contamination or damage to tools, machinery or products. By removing moisture, the dryer increases the reliability and durability of compressed air systems. The refrigerant dryer is designed for maximum efficiency and durability. The main design elements include: 1. Air-to-air heat exchanger In the first stage of the process, the inlet air passes through a heat exchanger, where it is pre-cooled by the cooler air leaving the evaporator. By using countercurrent flow, heat recovery increases the energy efficiency of the entire system. 2. Refrigeration system evaporator In the second stage, the compressed air is fed to the evaporator, where it is cooled to a dew point temperature of 3°C. This results in the condensation of water vapor and oil particles contained in it. 3. Condensate separator After cooling, the gas and condensate mixture goes to an efficient separator, where the condensate is separated and automatically drained outside the device. 4. Fan control system The variable speed fan technology allows intelligent adjustment of the cooling intensity to the actual demand, which reduces energy consumption and increases the service life of the components. Dkedpfomt Dcqsx Aa Nsl Technical parameters Inlet/outlet pipe diameter (BSP) 1 1/2" Maximum operating pressure 10 bar Maximum inlet air temperature ≤ 38°C Dew point temperature 3°C Efficiency 3800 l/min Power 0.9 kW Supply voltage 230 V Dimensions (L x W x H) 850 x 480 x 480 mm Weight 59 kg Type and amount of refrigerant R410a, 650 g

Condition: new, Year of construction: 2026, LUFT 1500 COMPACT Screw Compressor with Refrigerated Air Dryer The LUFT series screw compressor by the Polish brand Cormak represents the latest innovations in pneumatics, combined with the use of high-quality materials and components. Low operating costs, ease of use, ergonomic and robust design, and high performance guarantee efficient and trouble-free operation. Key Features of the Screw Modules in CORMAK Compressors: Modern Technology and Efficiency The screw modules ensure excellent performance and outstanding energy efficiency. Their design focuses on maximizing output while minimizing energy consumption. Precision and Control Thanks to advanced engineering solutions, the screw modules allow for precise control of the compressed air generation process. This translates into stable pressure and optimal operation of the entire pneumatic system. Durability and Reliability The screw modules used in CORMAK compressors are built for longevity. Their sturdy construction and use of high-grade materials ensure reliability even under harsh industrial conditions, minimizing downtime and the need for frequent repairs. Integrated Refrigerated Air Dryer – Top-Level Air Quality Two-Stage Drying System Effectively removes moisture and protects the pneumatic system. Variable-Speed Fan Automatically adjusts cooling capacity according to operating conditions, resulting in energy savings. Dual Filtration System A pre-filter with 3.0 µm accuracy removes larger solid contaminants. A precision filter with 0.1 µm accuracy captures fine oil particles (aerosols) and other impurities, ensuring ultra-clean air. Technical Specifications: Parameter Value Motor Power 11 kW Voltage 400V / 50Hz Output (0–6 bar) 1620 L/min Dksdexnk Acjpfx Aa Nol Output at 6 bar 1580 L/min Output at 8 bar 1350 L/min Output at 10 bar 1230 L/min Outlet Connection Diameter (G) 1" Dimensions 1550 x 740 x 1150 mm Weight 500 kg Manufacturer: CORMAK

Condition: new, Year of construction: 2026, Complete Compressed Air Set: LUFT 1000 INVERTER Screw Compressor + 500L Vertical Air Receiver + IZBERG N10S Air Dryer This professional compressed air set includes: The LUFT 1000 INVERTER screw compressor (7.5 kW, direct drive, with frequency inverter), A 500-liter vertical air receiver with fittings, The IZBERG N10S refrigerated air dryer. This system is designed for industrial facilities, workshops, and all pneumatic applications that require reliable, efficient, and energy-saving compressed air solutions. The LUFT series by the Polish brand CORMAK represents the latest in pneumatic technology, combining innovation with high-quality materials and components. Low operating costs, user-friendly design, robust construction, and high performance ensure efficient and trouble-free operation even in demanding conditions. LUFT 1000 INVERTER Screw Compressor – Technical Specifications: Motor Power 7.5 kW Voltage 400V / 50Hz Output at 0–6 bar 990 L/min Output at 6 bar 950 L/min Output at 8 bar 950 L/min Output at 10 bar 930 L/min Outlet Connection (G) 1/2" Dimensions (L x W x H) 810 x 610 x 850 mm Weight 160 kg IZBERG N10S Refrigerated Air Dryer – Technical Specifications: Parameter Value Inlet/Outlet Pipe Diameter (BSP) 1" Max Operating Pressure 10 bar Max Inlet Air Temperature ≤ 38°C Dew Point Temperature 3°C Flow Capacity 1500 L/min Power Consumption 0.58 kW Power Supply Voltage 230V Dimensions (L x W x H) 380 x 600 x 625 mm Weight 31 kg Refrigerant Type & Quantity R134a, 400 g 500L Vertical Air Receiver – Technical Specifications: Dodpexa Ah Ujfx Aa Njkl Parameter Value Tank Capacity 500 liters Operating Pressure 11 bar Wall Thickness 4 mm Diameter Ø 600 mm Height 2098 mm Weight 145 kg Number of Connections 6 Connection Sizes 1¼", 2", ½" Dimensions (H x D) 209.8 x 60 cm

Year of construction: 2026, condition: new, The purpose of a compressed air refrigerant dryer is to lower the temperature of the compressed air and remove water and oil particles contained in the air flow. Refrigerant dryers are important in applications where moist air could cause corrosion, contamination or damage to tools, machinery or products. By removing moisture, the dryer increases the reliability and durability of compressed air systems. The refrigerant dryer is designed for maximum efficiency and durability. The main design elements include: 1. Air-to-air heat exchanger Dkjdpfemt Dbhox Aa Njl In the first stage of the process, the inlet air passes through a heat exchanger, where it is pre-cooled by the cooler air leaving the evaporator. By using countercurrent flow, heat recovery increases the energy efficiency of the entire system. 2. Refrigeration system evaporator In the second stage, the compressed air is fed to the evaporator, where it is cooled to a dew point temperature of 3°C. This results in the condensation of water vapor and oil particles contained in it. 3. Condensate separator After cooling, the gas and condensate mixture is fed to an efficient separator, where the condensate is separated and automatically drained outside the device. 4. Fan control system The variable speed fan technology allows intelligent adjustment of the cooling intensity to the actual demand, which reduces energy consumption and increases the service life of the components. Technical parameters Inlet/outlet pipe diameter (BSP) 1" Maximum operating pressure 10 bar Maximum inlet air temperature ≤ 38°C Dew point temperature 3°C Efficiency 1500 l/min Power 0.58 kW Supply voltage 230 V Dimensions (L x W x H) 380 x 600 x 625 mm Weight 31 kg Type and amount of refrigerant R134a, 400 g The price given is a NET price. The price does not include transport costs. For more information, please contact us by phone or email. We invite you to familiarize yourself with the offer on our website.

Year of construction: 2026, condition: new, The purpose of a compressed air refrigerant dryer is to lower the temperature of the compressed air and remove water and oil particles contained in the air flow. Refrigerant dryers are important in applications where moist air could cause corrosion, contamination or damage to tools, machinery or products. By removing moisture, the dryer increases the reliability and durability of compressed air systems. Dkjdpfxsmt Dcfj Aa Njl The refrigerant dryer is designed for maximum efficiency and durability. The main design elements include: 1. Air-to-air heat exchanger In the first stage of the process, the inlet air passes through a heat exchanger, where it is pre-cooled by the cooler air leaving the evaporator. By using countercurrent flow, heat recovery increases the energy efficiency of the entire system. 2. Refrigeration system evaporator In the second stage, the compressed air is fed to the evaporator, where it is cooled to a dew point temperature of 3°C. This results in the condensation of water vapor and oil particles contained in it. 3. Condensate separator After cooling, the gas and condensate mixture goes to an efficient separator, where the condensate is separated and automatically drained outside the device. 4. Fan control system The variable speed fan technology allows intelligent adjustment of the cooling intensity to the actual demand, which reduces energy consumption and increases the service life of the components. Technical parameters Inlet/outlet pipe diameter (BSP) 1" Maximum operating pressure 10 bar Maximum inlet air temperature ≤ 38°C Dew point temperature 3°C Efficiency 2800 l/min Power 0.58 kW Supply voltage 230 V Dimensions (L x W x H) 420 x 700 x 690 mm Weight 37 kg Type and amount of refrigerant R134a, 550 g

Condition: new, Year of construction: 2025, Combustion chamber output: 350 kW Working output: 279 kW Flue gas outlet diameter: 200 mm Hot air distribution ducts: 1 x 600 mm Combustion chamber length: 1200 mm Combustion chamber width: 740 mm Combustion chamber height: 1040 mm Air delivery: 17,800 m³/h Hot air fan power consumption: 3 kW Flue gas fan power consumption: 600 W Designed for room volume: 5,000 m³ Dksdpfeyffylox Aa Nsl Area to be heated: 1,000 m² Oven height without hot air ducts: 2,500 mm Oven width: 1,100 mm Oven length without flue gas fan: 1,900 mm Weight: 850 kg

Condition: excellent (used), Year of construction: 2010, Ingersoll Rand TMS 80 Refrigerant Dryer Capacity: 8.2 m3/min Dkodsymmbtepfx Aa Nol Year of manufacture: 2010 The dryer is fully operational.

Condition: used, Year of construction: 2010, Operating hours: 58,730 h Technical data: Dsdpsydlycefx Aa Nokl Max. compressed air pressure: 14 bar Ambient temperature, max.: 50°C Refrigerant: R410A, 0.86 kg Connection: 230 V Weight, approx.: 154 kg