Used Charmilles Technologies Charmilles Technologies Robofil 510 Wire Edm Machine for sale (86,037)

Condition: used, Year of construction: 2008, controller manufacturer: Sonstige, controller model: , _____ Description: Year of manuf. : 2008 Control : Sonstige Movement X/Y/Z : 550/350/400 mm Workingspace: Movement in X/Y/Z:550/350/400 mm Movement in U/V:550/350 mm Table size:900 x 600 mm Workpiece dimensions (max.):1.200 x 700 x 400 mm Load capacity (max.):1.500 kg Dielectricheight (min./max.):0/435 mm Clearance angle (max.):+/- 45°/400 mm Generator: Technology:ISOPULS-Doppelquellengenerator Cutting speed:400 mm²/min Finest arbitration:0,20 μm Ra Wire: Standard diameter:0,25 mm Wire guiding:Closed diamond guides Equipment/Accessory: Tankcapacity:1.200l Dielektrikum Dielektrikumsmanagement I:Filtercartige Dielektrikumsmanagement II:Chiller, Eckert Setup operations:Electronic Handwheel Dedpfx Aszbzb Rokgskn Workpiececlamping:Clampingjaw, EROWA Further Accessory:Misc. Electrodeholder, clamping devices and Erodingwire : Attention:The displayed Deionisationsfilters are not included in our offer.

Condition: refurbished (used), Year of construction: 2004, functionality: fully functional, workpiece weight (max.): 450 kg, travel distance X-axis: 350 mm, travel distance Y-axis: 250 mm, travel distance Z-axis: 256 mm, AGIECUT Classic 2S Year of manufacture: 2004 Travel distances: X = 350 mm, Y = 250 mm, Z = 256 mm Travel distances U/V axis: +/- 70 mm Maximum taper: 30° at a height of 100 mm Maximum workpiece dimensions: 750 x 550 x 250 mm Maximum workpiece weight: 200 (in the bath) / 450 (without the bath) kg Achievable surface quality: Ra: 0.20 µm Djdpfx Aszcaxkekgskn Maximum cutting rate: 300 mm²/min Available wire diameters: 0.20 – 0.33 mm Wire EDM machine with automatic wire threading and re-threading after wire breakage With manual front door (accessible from one side) Includes AGIEJOGGER handbox for convenient setup AGIE IPG generator AGIEVISION control Dimensions (length x width x height): 1640 x 2040 x 2220 mm Net weight: 2580 kg After receiving your order, our machines are cleaned and fully overhauled. Subsequently, a test cut is performed to achieve the best possible surface finish for acceptance. You will receive a 6-month warranty on the machine. We would be happy to offer on-site commissioning and training.

Condition: refurbished (used), Year of construction: 2007, functionality: fully functional, workpiece weight (max.): 800 kg, travel distance X-axis: 500 mm, travel distance Y-axis: 350 mm, travel distance Z-axis: 256 mm, workpiece height (max.): 250 mm, workpiece width (max.): 650 mm, workpiece length (max.): 1,050 mm, GF AgieCharmilles Vertex 3F, Year of manufacture: 2007 Travel ranges: X = 500 mm, Y = 350 mm, Z = 256 mm Travel ranges U/V axis: +/- 70 mm Maximum taper: 30° at a height of 100 mm Maximum workpiece dimensions: 1050 x 650 x 250 mm Maximum workpiece weight: 400/800 kg Achievable surface quality: Ra: 0.05 µm Available wire diameters: 0.03 – 0.33 mm (including fine wire module) Wire EDM machine with automatic wire threading Dksdpozcap Ajfx Akgon With automatically lowerable tank (accessible from 2 sides) Including AGIEJOGGER handheld control unit for convenient setup Including AGIESETUP 3D AGIEVISION 5 control system AGIE IPG-V generator Dimensions (length x width x height): 2800 x 2400 x 2220 mm Net weight: 4500 kg After receiving your order, we will clean, overhaul, and thoroughly test the machine. You will receive a 6-month warranty on this! Includes user training at Techma on your overhauled machine. Optionally, we can also offer you the following services: - Transport - Commissioning - Training - Cooler

Condition: used, Year of construction: 2012, Automatic wire threading, Travel range: x 600 mm y 400 mm Dkodszcdwwopfx Akgon z 310 mm Includes cooler Machine is in excellent condition.

Condition: used, Year of construction: 2013, functionality: fully functional, GF AgieCharmilles Progress VP3 Year of manufacture: 2013 Travel ranges: X = 500 mm, Y = 350 mm, Z = 426 mm Travel ranges U/V axis: +/- 70 mm Maximum taper: 30° at a height of 100 mm Available wire diameters: 0.15 – 0.33 mm Dsdozcdtxepfx Akgekn Wire EDM machine with automatic wire threading and

Condition: refurbished (used), Year of construction: 2016, functionality: fully functional, workpiece weight (max.): 450 kg, travel distance X-axis: 350 mm, travel distance Y-axis: 250 mm, travel distance Z-axis: 256 mm, workpiece height (max.): 250 mm, workpiece width (max.): 550 mm, workpiece length (max.): 750 mm, GF CUT 2000X Year of manufacture: 2016 Travel distances: X= 350 mm, Y= 250 mm, Z= 256 mm U/V-axis travels: +/- 70 mm Maximum taper: 30° at 100 mm height Maximum workpiece dimensions: 750 x 550 x 250 mm Maximum workpiece weight: 200/450 kg AGIE IPG-V generator Achievable surface quality: Ra: 0.05 µm Available wire diameters: 0.05 – 0.30 mm including Option KIT 50 Including automatic wire changer AWC Water bath machine with automatic wire threading With automatically lowering tank (accessible from 2 sides) Including AGIEJOGGER hand-held box for convenient setup Including AGIESETUP 3D Including glass scales for X and Y axes VISION 5 control unit 15" LCD color screen, membrane keyboard and mouse Including Threading Expert Dimensions (length x width x height): 2095 x 1950 x 2232 mm Net weight: 3600 kg Dodpfxjydk Sko Akgjkn The machine will be completely overhauled and tested by us. An individual test cut is possible upon request. We also offer on-site commissioning and training for this machine.

Condition: refurbished (used), Year of construction: 2012, functionality: fully functional, workpiece weight (max.): 800 kg, travel distance X-axis: 500 mm, travel distance Y-axis: 350 mm, travel distance Z-axis: 256 mm, GF AGIECHARMILLES CUT 3000 Year of manufacture: 2012 Travel ranges: X = 500 mm, Y = 350 mm, Z = 256 mm Travel ranges U/V axis: +/- 70 mm Maximum taper: 30° at 100 mm height Maximum workpiece dimensions: 1050 x 650 x 250 mm Maximum workpiece weight: 400/800 kg Achievable surface quality: Ra: 0.05 µm Available wire diameters: 0.10 – 0.33 mm Wire EDM machine with automatic wire threading Dedpfxjzbbmto Akgjkn With automatically lowerable tank (accessible from 2 sides) Includes AGIEJOGGER handbox for convenient setup Includes AGIESETUP 3D Includes automatic wire changer AWC (using 2 wire spools) VISION 5 control AGIE IPG-V generator Dimensions (length x width x height): 2800 x 2400 x 2220 mm Net weight: 4500 kg The machine will be completely cleaned, overhauled, and thoroughly tested. Subsequently, a laser measurement of the axes will be performed at our facility. We would be happy to carry out an individual test on the CUT 3000 for you. Includes operator training at Techma on your overhauled machine. Optionally, we offer you: - Transport - Commissioning - Cooling unit - Clamping devices - Consumables

Condition: refurbished (used), Year of construction: 2002, functionality: fully functional, AGIECUT Excellence 2F Year of manufacture: 2002 Travel ranges (X/Y/Z): 350 x 250 x 256 mm Travel ranges (U/V): +/- 70 mm Maximum taper: 30° at 100 mm Maximum workpiece dimensions (length/width/height): 750 x 550 x 250 mm Maximum workpiece weight (with/without bath): 200/450 kg Best achievable surface roughness: 0.1 µm Ra Max. cutting rate in cylindrical cutting: 300 mm²/min Available wire diameters: 0.07 - 0.33 mm Includes AGIE universal clamping frame Includes AGIE JOGGER hand box Dkjdpfx Akozbbndjgen Includes AGIE-Setup 3D After receiving your order, the machine will be cleaned, inspected, and thoroughly tested by our technicians. We would also be happy to offer commissioning and training services.

Condition: refurbished (used), Year of construction: 2014, functionality: fully functional, workpiece weight (max.): 35 kg, travel distance X-axis: 220 mm, travel distance Y-axis: 160 mm, travel distance Z-axis: 100 mm, High-precision wire erosion machine GF CUT 1000 Year of manufacture: 2014 Travel ranges (X/Y/Z): 220 x 160 x 100 mm Travel ranges (U/V): +/- 40 mm Max. taper: 3° at 80 mm height Wire diameter from 0.07 mm to 0.20 mm Best achievable surface finish: Ra = 0.08 µm Max. workpiece dimensions: 300 x 200 x 80 mm Max. workpiece weight: 35 kg Includes AGIEJOGGER handheld control unit for convenient machine setup Dkodpfx Akozbbpnjgjn 15" LCD color screen with jog shuttle and mouse AGIEVISION control system Includes AGIESETUP 3D Includes AGIEDUO dual-wire system for automatic switching between two wire diameters Machine dimensions: 1400 mm x 1900 mm x 1970 mm Machine weight: 2700 kg After receiving the order, the machine will be cleaned, completely overhauled, and thoroughly tested by our specialists. We would be happy to commission the machine at your location and provide training on the control system and machine operation.

Condition: refurbished (used), Year of construction: 2011, functionality: fully functional, travel distance X-axis: 350 mm, travel distance Y-axis: 250 mm, travel distance Z-axis: 256 mm, AGIECUT Progress VP2 Year of manufacture: 2011 Travel ranges: X = 350 mm, Y = 250 mm, Z = 256 mm U/V axis travel ranges: +/- 70 mm Maximum taper: 30° at 100 mm height Dkedpfxjywkuyj Akgsn Maximum workpiece dimensions: 750 x 550 x 250 mm Maximum workpiece weight: 200 kg (submerged), 450 kg (non-submerged) Achievable surface finish: Ra: 0.20 µm Maximum cutting speed: 500 mm²/min Glass scales on X and Y axes for increased precision Available wire diameters: 0.15 – 0.33 mm Submerged wire EDM with automatic wire threading and re-threading after wire breakage Manual front door (accessible from one side) Including AGIEJOGGER handbox for easy setup AGIE IPG-V Generator with Power Module AGIEVISION CNC control Dimensions (L x W x H): 1640 x 2040 x 2220 mm Net weight: 2580 kg Our machines are cleaned and thoroughly overhauled after receipt of order. A test cut with optimal surface finish is then carried out for acceptance. You will receive a 6-month warranty for the machine. We are happy to offer on-site commissioning and training.

Condition: refurbished (used), Year of construction: 2012, functionality: fully functional, workpiece weight (max.): 3,000 kg, travel distance X-axis: 800 mm, travel distance Y-axis: 550 mm, travel distance Z-axis: 525 mm, GF AgieCharmilles Progress VP4 Year of manufacture: 2012 Travel paths: X = 800 mm, Y = 550 mm, Z = 525 mm Travel paths: U = 800 mm, V = 550 mm Maximum taper: 30° at 500 mm height Maximum workpiece dimensions: 1300 x 1000 x 510 mm Maximum workpiece weight: 3000 kg Achievable surface quality: Ra: 0.20 µm Maximum cutting rate: 500 mm²/min Available wire diameters: 0.15 – 0.33 mm Submerged-type wire EDM machine with automatic wire threading and re-threading after wire breakage Including automatic front door Including AGIEJOGGER handbox for convenient setup AGIE IPG-V generator AGIEVISION 5 control system Dimensions (L x W x H): 2900 x 3050 x 2850 mm Net weight: 6000 kg The machine will be cleaned and fully overhauled after order confirmation. A 6-month warranty on all machine parts is included. Dkedpfxoyir N Uj Akgen Commissioning and training can also be offered on request.

Condition: refurbished (used), Year of construction: 2001, functionality: fully functional, AGIECUT Excellence 3 Year of manufacture: 2001 Travel paths: X= 500 mm, Y= 350 mm, Z= 256 mm U/V-axis travel: +/- 70 mm Maximum taper: 30° at 100 mm height Maximum workpiece dimensions: 1050 x 650 x 250 mm Maximum workpiece weight: 400/800 kg Achievable surface finish: Ra: 0.10 µm Available wire diameters: 0.10 – 0.33 mm Submerged machine with automatic wire threading With automatically lowering tank (accessible from 2 sides) Including AGIEJOGGER handbox for convenient setup Including AGIESETUP 3D AGIEVISION control unit AGIE IPG generator Dimensions (L x W x H): 2800 x 2400 x 2220 mm Net weight: 4500 kg Dodoyx D I Aepfx Akgokn The machine will be cleaned, overhauled, and thoroughly tested by us upon receipt of order. Includes user training at Techma on your overhauled machine Optional: Transport, commissioning, chiller

Condition: refurbished (used), Year of construction: 2007, functionality: fully functional, travel distance X-axis: 350 mm, travel distance Y-axis: 250 mm, travel distance Z-axis: 256 mm, AGIECUT Progress V2 Year of manufacture: 2007 Travel distances: X = 350 mm, Y = 250 mm, Z = 256 mm U/V-axis travel range: +/- 70 mm Maximum taper: 30° at 100 mm height Maximum workpiece dimensions: 750 x 550 x 250 mm Maximum workpiece weight: 200 kg (submerged) / 450 kg (non-submerged) Achievable surface finish: Ra 0.20 µm Maximum cutting rate: 500 mm²/min Glass scales on X and Y axes for enhanced precision Available wire diameters: 0.20 – 0.33 mm Submerged-type machine with automatic wire threading and automatic re-threading after wire break Manual front door (accessible from one side) Includes AGIEJOGGER hand-held pendant for convenient setup AGIE IPG generator with Power Module AGIEVISION control system Dimensions (L x W x H): 1640 x 2040 x 2220 mm Net weight: 2580 kg Dkjdpfx Akjx Uxglegon Our machines are cleaned and completely overhauled after receipt of order. Afterward, a test cut is performed with the finest surface finish for approval. You will receive a 6-month warranty on the machine. We are happy to offer on-site commissioning and training.

Condition: refurbished (used), Year of construction: 2021, functionality: fully functional, workpiece weight (max.): 800 kg, travel distance X-axis: 500 mm, travel distance Y-axis: 350 mm, travel distance Z-axis: 256 mm, GF AGIECHARMILLES CUT 3000X Year of manufacture: 2021 Travel distances: X= 500 mm, Y= 350 mm, Z= 256 mm U/V-axis travel: +/- 70 mm Maximum taper: 30° at 100 mm height Maximum workpiece dimensions: 1050 x 650 x 250 mm Maximum workpiece weight: 400/800 kg Achievable surface finish: Ra: 0.05 µm Available wire diameters: 0.05 – 0.33 mm (incl. KIT 50) Submerged-type machine with automatic wire threading With automatically lowering work tank (accessible from 2 sides) Incl. AGIEJOGGER handbox for convenient setup Incl. AGIESETUP 3D Incl. automatic wire changer AWC (use of 2 wire spools) Incl. Conic-Plus option Incl. Fast-Threading option Dedsych Rzspfx Akgskn Incl. Smart-Threading option VISION 5 control system AGIE IPG-V generator Dimensions (L x W x H): 2800 x 2400 x 2220 mm Net weight: 4500 kg The machine will be fully cleaned, overhauled, and thoroughly tested after receipt of order. We conduct laser measurement of the axes at our premises. On request, we are also happy to carry out a custom test on the CUT 3000 for you. Includes user training at Techma on your overhauled machine We are happy to optionally offer: - Transport - Commissioning - Chiller unit - Clamping devices - Consumables

Condition: refurbished (used), Year of construction: 2018, functionality: fully functional, High-precision wire EDM machine GF CUT 1000 Year of manufacture: 2018 Travel ranges (X/Y/Z): 220 x 160 x 100 mm Travel ranges (U/V): +/- 40 mm Max. taper: 3° at 80 mm height Wire diameter from 0.05 mm to 0.20 mm Best achievable surface finish: Ra = 0.08 µm Max. workpiece dimensions: 300 x 200 x 80 mm Max. workpiece weight: 35 kg Includes AGIEJOGGER hand control unit for convenient machine setup 15" LCD color display with lift keyboard and mouse AGIEVISION control system Includes AGIESETUP 3D Includes AGIEDUO dual-wire system for automatic changeover between two wire diameters Machine dimensions: 1400 mm x 1900 mm x 1970 mm Machine weight: 2700 kg The machine has been cleaned, overhauled, and thoroughly tested by our specialists. We are happy to commission the machine at your facility and provide training on the control system and machine operation. Dedpfx Akey E Intjgjkn

Condition: refurbished (used), Year of construction: 2011, functionality: fully functional, workpiece weight (max.): 800 kg, travel distance X-axis: 500 mm, travel distance Y-axis: 350 mm, travel distance Z-axis: 426 mm, workpiece height (max.): 420 mm, workpiece width (max.): 650 mm, workpiece length (max.): 1,050 mm, GF AgieCharmilles Progress VP3 Year of manufacture: 2011 Dodpfx Ajx Sxa Tokgjkn Travel paths: X= 500 mm, Y= 350 mm, Z= 426 mm U/V-axis travel paths: +/- 70 mm Maximum taper: 30° at 100 mm height Maximum workpiece dimensions: 1050 x 650 x 420 mm Maximum workpiece weight: 400 kg (in the water tank) / 800 kg (without tank) Achievable surface quality: Ra: 0.20 µm Maximum cutting speed: 500 mm²/min Available wire diameters: 0.15 – 0.33 mm Submerged wire-cut EDM machine with automatic wire threading and re-threading after wire breakage With manual front door (accessible from one side only) Including AGIEJOGGER handbox for convenient setup AGIE IPG-V Generator AGIEVISION 5 CNC control Dimensions (L x W x H): 1940 x 2300 x 2600 mm Net weight: 3,460 kg The machine will be cleaned and fully overhauled after receipt of your order. You will receive a 6-month warranty on all machine parts. Commissioning and training services are also available on request.

Condition: new, Year of construction: 2022, operating hours: 1 h, functionality: fully functional, For sale: İkra Makina IPM 2850 automatic strip and wire bending and forming machine. It features a 12-ton press capacity and a 15 kW servo motor. This ensures precise operation for wires with a diameter of 6-16 mm. The machine comes with tooling suitable for manufacturing pipe clamps. By using other tools, it can bend various types of wires and strips. It was never used for mass production. Only a few test pieces were made on it. It is for sale due to a cancelled project. The offer includes the 6 tools, the press machine, and the matching nut welding machine. The sizes of the current tools are: • 40-44 Dsdpfx Aoxuhd Dskgekn • 48-54 • 55-59 • 60-66 • 68-73 • 75-80

Condition: excellent (used), Year of construction: 1999, functionality: fully functional, workpiece weight (max.): 70 kg, wire diameter (max.): 10 mm, type of input current: three-phase, input frequency: 50 Hz, Equipment: cooling unit, OMEGA CM43 Submerged EDM wire The OMEGA CM43 submerged EDM is still connected and working perfectly. This machine achieves the highest precision and is an ideal choice for smaller workshops. Working area (mm) 500 x 350 x 300 Electrode size (mm) 100 x 100 x 100 Dkedpowr Utisfx Akgon Capacity (kg) 70 Electrode mass (kg) 10 Axis travel: X430, Y320 mm dieletric tank: T4 model power supply: 50A Omega Pulse If you need more information. We are here to help! Please contact us using the contact form or give us a call Your ad has been automatically translated. Translation errors are possible.

Condition: used, Year of construction: 1975, Technical details: table length: 430 mm table width: 270 mm x-axis: 300 mm y-axis: 240 mm z-axis: 250 mm total power requirement: 2 kVA weight of the machine ca.: 0,72 t Dkodpfxju Nu Elo Akgon weight: Schaltschrank: ca. 200 kg space requirements of the machine approx.: L:0,9 x B:1,0 x H:2,1 m START HOLE EROSION MACHINE - size of cooling pond: 1000 x 510 x 900mm - incl. electric cabinet: 600 x 550 x 1400mm Machine is on sale as is, without been checked and will be sold as is! i.D. *

Condition: used, Year of construction: 2005, x-axis 450 mm Dsdpjy Umg Hsfx Akgokn y-axis 300 mm z-axis 300 mm table dimensions 820 x 400 mm number of tool places 20 Pos. In our estimation, the machine is in good used condition and can be inspected under power by appointment. Accessories, as well as the tools and clamping devices shown in the images, are included in the scope of delivery only if explicitly noted in the additional information. Subject to changes, errors in technical data and specifications, and prior sale!

Condition: used, Year of construction: 2006, Wire erosion / EDM Travel distance X: 300 mm Travel distance Y :200 mm Travel distance Z: 200 mm max. workpiece size X: 500 mm max. workpiece size Y: 300 mm max. workpiece size Z: 200 mm max. workpiece weight: 300 kg table size X: 536 mm table size Y: 337 mm with AWF ( Automatic Wire Feeding ) U / V axis: 80x80 generator: 60 Ampere submerged Control: Sodick LN1W Dsdpfxey Uvpdj Akgskn Taper Cutting Capacity: ±20° / 80 mm Wire Diameter: 0.15–0.30 mm

Condition: used, table length 400 mm table width 300 mm x-travel 300 mm y-travel 250 mm z-travel 250 mm Dodovwgq Sjpfx Akgekn weight of the machine ca. 1,2 t dimensions of the machine ca. 2000 x 1200 x 2500 mm The machine is supplied with a wide range of accessories

Condition: used, Year of construction: 2004, Working range 1.050 x 650 x 250 mm max. workpiece weight 400 (800) kg control Agievision AGIE max. conicity 30° / 100mm travel -x axis 500 mm travel -y axis 350 mm travel -z axis 426 mm travel U x V-axis mm rapid traverse X-axis 3 m/min rapid traverse Y-axis 3 m/min rapid traverse U-axis 0,6 m/min rapid traverse V-axis 0,6 m/min Djdpjw Spa Njfx Akgokn rapid traverse Z-axis 0,6 m/min wire dia. 0,2...0,33 mm total power requirement 12,1 kVA weight of the machine ca. 3,9 t dimensions of the machine ca. 2,8 x 2,4 x 2,3 m Wire Eroding Machine AGIE - Agiecut Progress 3

Condition: used, Year of construction: 1997, functionality: fully functional, type of input current: three-phase, year of last overhaul: 2012, Basic information: Control system: Siemens S7-400 Technical details: Material processed to date: Steel wire Number of drawing steps: 12 Technical condition: New electrical system in 2012 Maximum inlet wire diameter: 4 mm Minimum inlet wire diameter: 3 mm Maximum finished wire diameter: 1.3 mm Minimum finished wire diameter: 0.78 mm Maximum inlet wire tensile strength: 1225 N/mm² Number of blocks: 12 Block axis: vertical Drawing die diameter: 450 mm Drawing die thickness: 43 mm Drawing die diameter: 27 mm Water pressure: min. 2 bar Control method between drawing dies: Guide rollers Dedpfx Ajzb N Raekgokn Air pressure: 6 bar Drawing die cooling: Water Drawing die cooling: Water Drive type: Three-phase motor Motor manufacturer: SIEMENS Drive power: 22 kW Motor controller: Siemens Sinamics Operating voltage: 400 V Frequency: 50 Hz Electrical cabinet: present Guide rail: present Production direction: from left to right Consisting of: KOCH unwinder KOCH dancer KOCH KHS 800 S single spooler

Condition: as good as new (ex-display), Year of construction: 2023, operating hours: 8,400 h, functionality: fully functional, travel distance X-axis: 600 mm, travel distance Y-axis: 400 mm, travel distance Z-axis: 300 mm, overall weight: 3,700 kg, A demonstration machine is for sale. Travel range: X-axis: 600 mm Y-axis: 400 mm Z-axis: 300 mm U-axis: ±50 mm V-axis: ±50 mm Max. workpiece dimensions: 990 x 620 x 295 mm Max. table load: 550 kg Max. taper: ±21º / 100 mm Machine weight: 3700 kg Machine height: 2210 mm Machine dimensions: 2480 x 2980 mm Standard wire diameter: 0.15 to 0.3 mm Max. weight of wire spool (kg): 10 kg (P10) Surface quality: Ra 0.35 Capacity of the water system (l): 1000 Machine equipment: Transformer Windows CE touch screen controller Automatic wire threading (AWT) SD Master Tubular linear drive Collision protection X/Y/Z/U/V axes 0.1-μm resolution in the linear scale PC acrylic filter tank cover Standard remote box Water chiller Flush gun Protective door lock Dkjdpeza Eppjfx Akgjn 3-filter water tank design CE conformity configuration Demineralized water tank