Used Renz Renz Punching Machine Autopunch for sale (64,855)

Condition: used, Year of construction: 2004, functionality: fully functional, machine/vehicle number: 1002570003, total height: 3,450 mm, ram adjustment: 80 mm, installation height: 270 mm, table height: 1,280 mm, total width: 1,700 mm, total length: 3,065 mm, drop-through hole in table: 210 mm, table length: 1,500 mm, table width: 750 mm, pressing force: 63 t, control cabinet height: 2,200 mm, control cabinet length: 1,800 mm, control cabinet width: 600 mm, stroke adjustment: 80 mm, clearance between the columns: 1,540 mm, working width: 1,500 mm, distance between side stands: 360 mm, distance between stands: 2,020 mm, overall weight: 17,000 kg, punching force: 63 t, RASTER punching system RST 630-1500 DH with soundproof enclosure and tool monitoring. The machine is in good condition. Stroke rate: 30 - 700 1/min. Operated in single-shift operation. The machine can be inspected under power. Price on request. Chodpfx Aoyyppbshmsc

Condition: used, Year of construction: 2004, functionality: fully functional, machine/vehicle number: 1002650004, total height: 3,170 mm, ram adjustment: 60 mm, installation height: 270 mm, table height: 1,300 mm, total width: 2,875 mm, total length: 2,875 mm, drop-through hole in table: 150 mm, table length: 1,250 mm, table width: 550 mm, pressing force: 50 t, control cabinet height: 2,200 mm, control cabinet length: 1,800 mm, control cabinet width: 600 mm, stroke adjustment: 60 mm, clearance between the columns: 1,290 mm, working width: 1,250 mm, distance between side stands: 260 mm, distance between stands: 1,690 mm, overall weight: 9,900 kg, punching force: 50 t, RASTER punching system RST 500-1250 DH with soundproof cabin and tool monitoring. The machine is in good condition. Stroke rate: 50 – 800 spm. Previously operated in single-shift mode. The machine can be inspected under power. Price on request. Chjdpfxsyyvgto Ahmsc

Condition: used, Year of construction: 2001, gebraucht 2001 9647 prompt, Zwischenverkauf v Italien 23200 € 1 30 to 1250+N x 1000 mm 1250 mm 1000 mm 40 m/Min 30 m/Min 50 m/Min 30 mm 730 1/Min 300 1/Min 980 mm 4 kW 115 l 4000 mm 2780 mm 1900 mm 4000 x 2300 x 1900 mm + Z mm 4800 kg With 6-way multitool holder MTE6 (max. Dm. 24 mm) 2 Clamping claws Table with Brushes, table dimension 1970 x 2260 mm Foot pedal 2 pcs. additional single matrix holders PC with Euromac Software Eurowin 8.36 Max. Punching force 300 kN Automatic repositioning up to 10.000 mm Max. Punching diameter for single tool 88,9 mm, Max. Punching diameter Multitool Holder MTE6 Dm. 24 mm Max. Opening the clamping claws 7 mm Transport width: 2350 mm User Manual in english and italian CE declaration available WITH LARGE TOOL PACKAGE several pieces of each of the following dimensions: Round: Dm. 2,5/2,8/3/3,12/3,2/3,5/3,9/4,1/4/4,5/5/5,2/5,5/6/7/7,5/8/8,5/9/9 ,5/10/10,5/11/11,5/12/12,5/13/13,5/14/15/16/18/19/20/21/23 Square: 10/12/13/15 mm Cedpfx Ahewirkgemjhc Rectangle: 5x2/20x2/22x4 mm Oblong hole: 10x6,5/12x8,5/12,2x10,7/18x5 mm BUYING USED MACHINERY IS A MATTER OF TRUST - OUR TRANSPARENCY PROMISE We offer you maximum security and complete transparency. • HONEST INSIGHTS: Detailed photos and functional videos of the current condition • LIVE ON-SITE CHECK: Live testing is possible at our facility • DIGITAL DEMONSTRATION: Individual live demonstration via video call • RISK-FREE PURCHASE: 14-day return policy Details:

Condition: ready for operation (used), Max. working width: 430mm, binding element diameter range: 4.7mm-31.75mm, documentation available. An on-site inspection is possible. Chjdpoznx Itefx Ahmec

Condition: excellent (used), Year of construction: 2018, operating hours: 34,000 h, functionality: fully functional, Great opportunity! Like-new Salvagnini S4 / P4 from the first owner, built in 2018! The machine is in perfect, like-new condition and ready for immediate use! The system has been regularly serviced by Salvagnini, and the machine is covered by a maintenance contract. Technical data and Salvagnini internal number: Punching machine/shear with rotating station S4Xe.30 Csdozh I Iijpfx Ahmohc consisting of: Conveyor belt TAC30.L2000 Corner turning device DA30 Punching machine S4Xe.30 Punch head H3 Oil-dynamic hydraulic unit HU22E Control and management of the SiX system Right-angle shear CS5S Turning device DF Lower cylinder EI09 Embossing unit BU30 Double rotating punch P2R3132 Double rotating punch P2R3334 Threading roll unit ME35 Device for automatic application of self-adhesive labels LBC (label printer) Portal robot MC30 Conveyor with brushes CTS30 Shear lift table TCV3015 Water-air cooling unit R81E Tools (detailed list available on request) P4Xe-3125 Swivel bending machine including roller and turning station consisting of: Shear lift table TCV3015.CT.RPC Feeder-destacker device PCD3015 Turning device RIP3015 Bending center P4Xe-3125 Upper bending die LS Lower bending die LI Programmable clamping device U1 Standard clamping foot NS Control and management of the SiX system Work surface with balls SFE Device for cleaning and lubricating the bending dies PSE Asymmetrical control for auxiliary bending tools for positive bends CLA-A CLA tool set with "swan neck profile" UCE1500G38 Asymmetrical control for auxiliary bending tools for negative bends CLA-N-A CLA tool set with "swan neck profile" for negative bends UCE1500NG38 Device for V-notch RSU.UR-4 Swiveling device for auxiliary tools T Option for cutting and dispensing profiles CUT.SPC31 T-tool for 90° bends UTZ2 Delivery device/buffer for panels SAP34.POS The system has a hinged belt conveyor for central disposal of the sheet metal sections. These are then conveyed to tipping containers via a swan neck conveyor. Sorting according to stainless steel, aluminum, and black sheet metal is fully automatic. A weighing and level measuring device is integrated and reports the level via the control system. The machine can be inspected and tested by arrangement. Additional videos and detailed images of the system are available on request!

Condition: refurbished (used), Year of construction: 2004, operating hours: 5,000 h, functionality: fully functional, total height: 4,300 mm, ram adjustment: 100 mm, installation height: 500 mm, table height: 1,000 mm, total width: 2,200 mm, table length: 1,400 mm, pressing force: 200 t, control cabinet width: 2,000 mm, stroke length: 160 mm, clearance between the columns: 1,450 mm, working width: 1,100 mm, distance between side stands: 400 mm, overall weight: 27,000 kg, height adjustment type: electric, space requirement height: 4,500 mm, space requirement length: 2,200 mm, space requirement width: 1,800 mm, High-precision cutting and embossing press, U.T accuracy +/- 0.01, ideal for the production of fuel cell stacks or hydrogen electrolyzers. Codpst Nf Agsfx Ahmshc hydrogen electrolyzers. The press is also suitable for (smooth) fineblanking, stroke rate 1 - 70 /min. Eccentric loads are also possible without any problems thanks to 4 connecting rod rams. It is also not possible for the press to jam. The press is completely overhauled and supplied with a new Siemens S7 control system.

Condition: good (used), Year of construction: 2014, operating hours: 5,722 h, functionality: fully functional, machine/vehicle number: 379, punching force: 28 t, sheet thickness steel (max.): 6 mm, working range: 2,080 mm, punching diameter: 105 mm, workpiece weight (max.): 200 kg, overall weight: 9,200 kg, lifting height: 90 mm, input voltage: 400 V, repeat accuracy: 0.03 mm, For sale: a Boschert Compact 1000 Rotation, manufactured in 2014, serial number 379, located in Königsdorf/Bavaria (south of Munich). CNC punching/nibbling machine for sheet metal processing: Cjdpfszkviasx Ahmohc – Punching force 28 t (280 kN) – Trumpf tool system (sizes 1–3, up to Ø 105 mm) – Rotating head: all tools can be rotated 360° continuously – Boschert CNC 32050 control with TFT operating panel, DXF import – Working area 1060 × 2080 mm, repositioning for long sheets – Sheet metal thickness up to 6 mm steel Meter readings taken directly from the control panel (photo in the advertisement): – Machine running: 5,722 hours – Hydraulics running: only 1,285 hours – Stroke counter: 2.3 million strokes The machine has been used little and is currently operational – inspection with demonstration is possible on short notice after arranging an appointment. Video will be provided later. Tool inventory and documentation available upon request. Dismantling and loading will be carried out by the buyer or by arrangement. Payment must be made before collection. Sale as seen, excluding any warranty. Export possible. Quick and straightforward transaction – please include a callback number with your inquiry.

Condition: ready for operation (used), Year of construction: 1979, functionality: fully functional, Paper punching machine (for creating perforations) for WIRE-O spiral binding. The device is designed for continuous operation and heavy-duty use. The machine has 2 tools for punching 3:1 holes, 4x4 mm square. After the holes are punched, the sheets fall onto a collecting table at the end of the machine. Quick and easy tool change (5 minutes). Maximum sheet size for punching: 550x500 mm, minimum 150x150 mm. Power supply: 1.5 kW, dimensions: 2800x1200x1250 mm, net weight: 950 kg. A video demonstrating the machine's operation can be sent upon request. Csdpfxszuzxho Ahmohc

Condition: excellent (used), Schroeder & Bauer WB 32-1 Universal Wire and Strip Bending Machine Wire Feed Plain Text Display Press Force Monitoring Wire Straightener Bosch Stripping Devices Bracket and Brush Motor with Attached W32/1-32 Tool Soundproof Cabin Barrels of Copper Wire with Punched Parts Control Cabinet Technical Specifications: Drive Power: 7.5 kW Speed (min. - max.): 40-250 rpm Press force / punching unit: 200 kN Longitudinal feed: 250 mm Longitudinal strip width: 50 mm Wire diameter: 6.0 mm Machine weight: 3500 kg Dimensions without electrical components (L x W x H): 3600 x 1500 x 2400 mm Item condition: very good Manufacturer's description, deviations possible. You are purchasing the machine as shown in the pictures. Complete factory closure, large selection of storage platforms, pallet racks, shelving units, and paternosters. High-quality industrial machines, lathes, grinders, and hand tools. Financing through our bank is also possible. komplett-konzept.leasingo.de You can find more punching and bending machines - new and used - in our shop! International shipping costs upon request! Chsdpfx Aog T S Tdohmoc

Condition: used, Year of construction: 1990, serial number 28043 Chedpfx Ahjpxri Homoc weight 3 t pressure 30 t volt 380 V frequency 50 Hz

Condition: good (used), Universal punching machine Dimensions: 145x120x210 cm LxWxH Csdpfxoiki Dbo Ahmjhc

Condition: excellent (used), Complete production line for sale for manufacturing round metal rainwater drainage systems. Production starts from a sheet metal coil, then forms, stamps, and packages the products. All machines are in very good condition. The equipment is fully assembled and intended for mass production of: - Gutters - Gutter ends Chedpsy I Tq Sjfx Ahmsc - Connectors - Corners - Brackets - Downpipe outlets - Elbows - Downpipes - Branch connectors (Tees) - Packaging If you are interested in the offered equipment, have any questions, or would like to receive more detailed information, please do not hesitate to contact us. We will gladly provide the full equipment list, technical specifications, additional photos, or arrange an inspection of the production line. All equipment is connected and can be inspected in operation to see the full production process.

Condition: used, Year of construction: 2011, Offer: High-Precision and Versatile Punching/Nibbling Machine Boschert Compact 500 CNC Z (Year 2011) – Ideal for Flexible Sheet Metal Processing! We are selling a powerful and reliable punching/nibbling machine from the renowned manufacturer Boschert, which impresses with its advanced features and precision. This machine is the ideal solution for a wide range of punching and nibbling tasks, from one-off pieces to large-scale production. Key Features: • Manufacturer: Boschert • Model: Compact 500 500 x 1000 CNC Z • Year of manufacture: 2011 • Intuitive CNC Control: Multi-axis Ladob controller with graphical user interface for easy programming and visualization of machining processes. • Extended work area for greater flexibility: o X-axis: 0–2000 mm (enables processing of long workpieces) o Y-axis: 0–750 mm (offers ample space for wide sheet metal) • Ultra-fast tool change: Trumpf quick-change tool system ensures minimal downtime and maximum productivity. • Universal tool compatibility: Compatible with the full range of Trumpf tools – reduce your tooling costs and expand your capabilities. Chsdpfex Uxtfex Ahmsc • Secure and precise material handling: o Collet clamping: Ensures a firm grip of the workpiece during processing. o Non-contact repositioning up to 9999 mm: High-precision repositioning device with 2 sheet holders for efficient processing of even very long sheets without loss of position. • Dynamics and precision at their best: o Maximum positioning speed: 60 m/min for fast processing cycles. o Infinitely variable feed rates: Optimal adjustment of processing speed to the material and task. o Highest positioning accuracy: ± 0.05 mm for precise results on every workpiece. • Robust and durable construction: o Y-axis drive: Two ball screw-driven carriages located left and right beside the machine table ensure maximum stability and torsional stiffness. o X-axis drive: Ball screw and four recirculating ball guides guarantee precise and smooth movement. • Specialized equipment for small parts: Stop plate (L-bracket) for secure processing of small parts that can no longer be safely held by the collets – for maximum flexibility and minimal scrap. Condition: The machine is in very good, well-maintained condition and has been serviced regularly. It is immediately ready for operation and offers excellent performance for your sheet metal processing needs.

Condition: excellent (used), functionality: fully functional, Year of construction: 2010, laser power: 4,000 W, X working area max.: 3050 mm Y working area max.: 1550 mm Control: Rexroth IndraMotion MTX Laser power: 4,000 watts Standard equipment: Machine - Sturdy, easily accessible C-frame - Coordinate guidance for high-precision machining - Linear tool changer with 21 tool stations and 4 clamps - Maintenance-free three-phase drive motors - Repositioning device with programmable hold-down - Foot switch for closing clamps - 2 good parts containers - Automatic shutoff Laser station - TruFlow laser - High-frequency excitation - Cooling unit - TASC 3 laser controller Chodpfxoy Saqgs Ahmsc - Enclosed beam guidance - Beam tube ventilation with compressed air - Programmable cutting gas pressure - Laser cutting head with 170 mm focal length - Universal quick-change cutting head device UTI with bus connection - LensLine - FocusLine - ControlLine - NitroLine - SprintLine - ContourLine - FlyLine - PlasmaLine - High-speed cutting - Additional Xp and Yp axes - Ejector cylinder for laser parts - Fast flap for laser parts 500 x 500 mm - Liftable laser cutting support - Slag cone detection - Laser logbook function Punching station - Electro-hydraulic punching head - Rotatable mono-tool holder - Tool length compensation - Programmable hold-down with adjustable force - Stroke counter for punches - Spray lubrication for punches - Punch slug extraction - Warp detection - Flap for punched parts 500 x 500 mm - Fill level monitoring in the punching console Control - Open control system based on Bosch Rexroth IntraMotion MTX - Operating panel with 15" TFT touchscreen - Program management and 80 GB storage capacity - Diagnostic function with laser logbook - Integrated technology data - Teleservice Data transfer - Network connection RJ45 and USB interface Safety - CE marking - Multi-beam light barriers - Monitoring system for, among others, gas pressure, temperature, cooling water - Hydraulic quick shut-off - Protection against stray radiation - Compact extraction unit - TruFlow 4000 - Vibration-dampened installation - Thread forming function - MultiTool function - Chip conveyor with tilting container - Active die - Ejector for small parts - Brush tables with loading aid - Marking function - Repositioning cylinder - Warp detection

Condition: new, tube diameter 1/4" max. 2" Zoll wall strength max. 3,0 mm engine 400Volt / 1,5KW Chedpfx Ahjv Skzksmsc weight 90 kg dimensions 07 x 0,4 x 0,3 m Pipe notcher Maximum wall thickness 3.0 mm Suitable for the following pipes: 1/4", 1/2", 3/4", 1", 1 1/4", 1 1/2", 2"

Condition: excellent (used), Year of construction: 1986, plate thickness 5 mm sheet width 40 mm Chedpfx Ahsxzk I Somoc

Condition: used, Year of construction: 1970, Schlitzmaschine / Slot machine Krause-Y-32-UM-2-69Schlitztiefe / slot depth max. 32cm Codpfx Ajiiduajhmshc Normal Schlitzbreite / Normal slot width 3mm Hub des Druckstückes / stroke of the pressure piece ca. 30mm Stanzhübe / punch strokes per minute ca. 84 Online-Video-Inspection by Skype-Video We would be very pleased with your visit - more machines on Stock Available Immediately - Can be inspect On Stock Emskirchen / Nürnberg - Can be test

Year of construction: 2007, condition: ready for operation (used), An Amada CNC turret punching machine for medium format sheets including an MP300 M loading unit, Wilson X-Sharp grinding machine and numerous standard and special punching tools are available. 1) CNC turret punching machine Amada, year of manufacture: 2007, punching force: 300kN, max. sheet dimensions X/Y: 3000mm/1500mm, max. sheet thickness: 6.35mm, stroke rate: 600 strokes/min, simultaneous positioning speed: 128m/min, repeat accuracy: +/-0.1mm, machine dimensions X/Y/Z: approx. 5100mm/3200mm/2300mm, weight: approx. 18000kg. 2) Automatic sheet loading and unloading system Amada MP 300 M, max. sheet dimensions X/Y: 3000mm/1500mm, min. sheet dimensions X/Y: 1000mm/300mm, sheet thickness range: 0.8mm-6mm, max. load capacity per pallet: 3000kg, max. stacking height: 400mm, max. sheet weight: 170kg, max. pallets: 9, pallet change time: 25s, sheet loading time: 18s, weight: approx. 4900kg. 3) Wilson X-Sharp tool grinding machine. Documentation available. On-site inspection is possible. Cedpfxewhp N De Ahmjhc

Condition: excellent (used), Year of construction: 2011, functionality: fully functional, punching force: 28 t, sheet thickness (max.): 10 mm, sheet thickness steel (max.): 6 mm, punching diameter: 76 mm, overall weight: 16,000 kg, throat depth: 1,500 mm, Equipment: safety light barrier, Boschert Multipunch 1500 8-station tool changer incl. 4-station and 8-station multi-tool base bodies (with current tooling consisting of 18 punching tools) Punching force: 280 kN (28 tons) Travel ranges: x – 30500 mm (repositioning up to 9999 mm) y – 1580 mm Punch arm overhang: 1850 mm Tooling system: Trumpf Gr2 (76mm) as well as Boschert Revotool Labod 32065 graphic control / workshop programmable Max. sheet thickness: 6 mm (clamp opening) Max. installation height: 90 mm, stroke length 30 mm upwards and downwards, steplessly programmable. Table width, left + right: 3250 mm each Table depth: 3250 mm Table height: 900 mm Overall width: 6860 mm Overall depth: 5040 mm Overall height: 2080 mm Drive power: 25 kVA Machine weight: 16,000 kg Hydraulic oil capacity: 160 l Color: Blue RAL5017 / Light gray RAL7035 Machine year of manufacture: 2011 Ball roller table Punching slug extraction Cjdpfx Ahezw Dz Djmshc Fast hydraulics (400/800 strokes) very well-maintained condition new screen with accessories

Condition: as good as new (ex-display), functionality: fully functional, Year of construction: 2024, control type: CNC control, laser type: fiber laser, laser power: 3,000 W, power: 2 kW (2.72 HP), warranty duration: 24 months, Equipment: CE marking, centralized greasing system, cooling unit, documentation/manual, dust extraction, The Yawei HPML30510 is a combined laser punching and cutting system for highly precise and efficient sheet metal processing in industrial applications. The machine combines servo-electric punching with laser cutting, achieving high processing speeds while maintaining low energy consumption. Cjdpfx Aoz D Th Djhmshc Thanks to its robust construction, automated systems, and modern CNC technology, the HPML30510 is particularly well-suited for demanding series production. The machine offered here is a demonstration model, in stock, immediately available, in new condition, and is offered with delivery (within Germany), commissioning, warranty, etc. It includes a comprehensive set of tools. It can be tested under power. Operating mode: Servo punching / laser cutting Punching force: 294 (30) kN (t) Laser power: 3000W Max. processing size (punching): 1600 x 3000 mm Max. processing size (cutting): 1500 x 2500 mm Max. material thickness: 6.35 mm (sphere) / 3 mm (brush) Max. punching diameter: 88.9 mm Stroke rate: 2000 cpm Punching frequency (1mm pitch): 700 cpm Punching frequency (25.4mm pitch): 400 cpm Accuracy (punching/cutting): ±0.10 mm Combined accuracy: ±0.15 mm Clamps: 4 pcs Tool stations: 38 pcs CNC system: Siemens 840Dsl CNC axes: 11 Max. sheet metal speed: 102 m/min Turret speed: 30 rpm Max. load: 180 kg Dimensions (length): 8000 mm Dimensions (width): 8000 mm Dimensions (height): 2300 mm Machine weight: 20000 kg

Condition: used, Tube end forming machine,Spiro Pneumatic Tube Notching Machine / Assembly Stand, Spiro Manual Tube Notching Machine, Used Machine Technical Specifications Csdpfxezwxwge Ahmshc Manufacturer: Spiro Development AB (Made in Sweden) Year of Manufacture: 2008 Type: Manual Tube Notching Machine (with pneumatic assistance) Frame Construction: Heavy-duty aluminium machine-building profile frame Operation: Foot-switch-controlled pneumatic operation Design: Adjustable-height and adjustable-distance tube support stand for convenient positioning and machining of long tubes Overall Dimensions Width: 2350 mm Depth: 930 mm Height: 1450 mm

Condition: good (used), Year of construction: 2006, functionality: fully functional, punching force: 30 t, total height: 1,900 mm, working range: 10,000 mm, travel distance X-axis: 10,000 mm, travel distance Y-axis: 1,250 mm, overall weight: 6,400 kg, throat depth: 1,250 mm, compressed air connection: 6 bar, space requirement width: 4,000 mm, space requirement length: 3,200 mm, space requirement height: 1,900 mm, input voltage: 400 V, Euromac ZX INdex 1250/2000/30 *Includes Multitool 6 *Includes various tooling Year of manufacture: 2006 Punching force: 30 tons Working area: 1250 x 2000 X-axis movement: 2000 mm with extension up to 10,000 mm Y-axis movement: 1250 mm X-axis speed: 50 m/min Y-axis speed: 50 m/min Stroke: 30 mm Max. stroke frequency (in steps of 1 mm, 1 mm sheet thickness): 730 1/min Max. stroke frequency (in steps of 25 mm, 1 mm sheet thickness): 300 1/min Table height: 980 mm Codpoz Dutujfx Ahmshc Motor power: 5.5 kW Oil tank: 115 l Length: 4000 mm Width: 3200 mm Height: 1900 mm Transport dimensions: 4000 x 2300 x 1900 mm Weight: 6400 kg Includes 6-position multitool holder 2 clamping jaws with automatic repositioning Table with brushes Automatic repositioning up to 10,000 mm Max. punching diameter with single tool: 88.9 mm Max. punching diameter multitool holder MTE6: diameter 24 mm Max. opening of the clamping jaws: 7 mm Transport width: 2350 mm Operating manual in English and Italian CE declaration available

Condition: used, Year of construction: 2004, functionality: fully functional, Bograma BSM 750/220/15 Servo punching line, year of manufacture 2004 Bograma BSM 750/220/15 Servo, year of manufacture 2004 Bograma sheet feeder TA 15, year of manufacture 2004 Bograma shingled delivery SAB 750, year of manufacture 2004 Csdpfjygr I Sjx Ahmshc

Condition: used, functionality: fully functional, Wire-O binding machine ECL 360 Renz Used RENZ ECL 360 Electric wire-O binding machine Chedpez Hkxfofx Ahmec Features: Integrated hanging device Diameter adjustment via handwheel and adjustment scale Pitch settings: 2:1 / 3:1 / 4:1 Maximum binding thickness: 34 mm (approx. 340 sheets) Approx. 400 binding cycles per hour Wire element diameter: 3/16" (5.5 mm) to 1 1/2" (38 mm) Activation via electric foot pedal 230 volts.

Condition: good (used), Brand Boschert Model EL 500 Digital Year of construction 2009 Press force 28 tons Throat depth 180 mm Punching capacity 40 mm in 6 mm Worktable size 500x1000 mm Chedpfx Ahow Hyc Somec Number of strokes 180 pcs Dimensions 2400x1580x1540 mm Weight 2000 kg Power 5 kW