Used Wire Drawers for sale (4,237)

Condition: not inspected (used), Year of construction: 1996, functionality: unexamined, machine/vehicle number: 6.0138, travel distance X-axis: 630 mm, travel distance Y-axis: 400 mm, travel distance Z-axis: 462 mm, table load: 800 kg, controller model: CHARMILLES ROBOFIL 6020 SI, No minimum price – guaranteed sale to the highest bidder! This machine is being auctioned due to the closure of a business. Bidding commits you to timely collection between 26.01.2026 and 29.01.2026! TECHNICAL DETAILS Travel Paths Travel X-axis: 630 mm Travel Y-axis: 400 mm Travel Z-axis: 462 mm Travel U-axis: ±50 mm Travel V-axis: ±50 mm Workpiece Max. workpiece dimensions: 1,260 x 685 mm Max. workpiece height (immersed): 200 mm Max. load capacity: 800 kg Max. workpiece height between feedthroughs: 360 mm Measuring resolution: 0.5 µm Maximum manual speed: 15 mm/s Ihedsxqallspfx Addjt Wire unwind speed Tension, taper offset Maximum workpiece height for wire threading: 300 mm Work tank dimensions: 1,355 x 760 x 425 mm MACHINE DETAILS Control: CHARMILLES ROBOFIL 6020 SI Dimensions & Weight Dimensions (L x W x H): 4,500 x 2,700 x 2,900 mm Weight: 4,000 kg Electrical Details Operating voltage: 380/400 V Frequency: 50 Hz Rated current: 18 A EQUIPMENT Includes matching workshop drawer cabinet with accessories and documentation

Condition: excellent (used), Mitsubishi wire EDM machine FA20S, year of manufacture: 2006 With accessories Iedewt N Uqopfx Addoht More pictures and data will follow shortly.

Condition: excellent (used), Year of construction: 2015, functionality: fully functional, Technical Specifications Travels (X / Y / Z): 350 × 250 × 256 mm U / V Axis Travels: ± 70 mm Max. Workpiece Dimensions (LxWxH): approx. 750 × 550 × 250 mm Max. Workpiece Weight: approx. 450 kg Table Size: 620 × 400 mm Wire Diameter: 0.15 – 0.33 mm (commonly 0.25 mm) Max. Taper Cutting Angle: ± 30° at 100 mm height Positioning Accuracy: ± 2 µm Psw N Hjxdubzjl Icsrb Wire Threading System: Fully automatic, fast, reliable Generator: Intelligent GF AC Cut, real-time spark control Surface Finish: up to Ra 0.1–0.2 μm (after finishing cuts) Control System: AgieVision (ergonomic, touch display, 3D graphics) Dielectric: Deionized water Machine Dimensions (LxWxH): approx. 2200 × 2200 × 2200 mm Ihsdpsxt Hz Ssfx Addot Machine Weight: approx. 3500–4000 kg

Condition: excellent (used), Year of construction: 2017, operating hours: 19,187 h, functionality: fully functional, pressing force: 140 t, filling opening width: 1,100 mm, filling opening length: 1,600 mm, bale width: 1,100 mm, bale height: 1,100 mm, bale weight: 1,500 kg, overall weight: 52,000 kg, Technical data baler: Manufacturer Bollegraaf Recycling Machinery B.V. Typ HBC 140 Year of construction 2017 Working hours 19,187 hours, stand October 2025 Press power main press 140 tons (max. 153,5 tons) Press power of pre-press 70 tons Feed channel 1,600 x 1,100 mm Capacity per cycle time 4,34 m³ Theoretic cycle time 16 sec. Bale size 1,100 x 1,100 mm Driving motor 2 x 75 kW Connected load 226 kW Full load current 428 A Isdoxrta Espfx Addoht Tying system 5-fold vertical, fully automated Throughput rate at a bulk weight of 30 kg/cbm approx. 30 tons/h bulk weight of 50 kg/cbm approx. 46 tons/h bulk weight of 100 kg/cbm approx. 82 tons/h Bale weight 800 up to 1300 kg, depends on material and bale lenght SPS controller (manuf., type) Telemecanique TSX Micro Operating panel (manuf., type) Schneider MAGELIS Touch Baler dimensions built up with hopper 13,200 x 27,000 x 7,344 mm (l x w x h) Transport dimensions only baler 13.200 x 2.750 x 3.450 mm (l x w x h) Machine weight baler approx. 52 tons Technical data chain belt conveyor: Manufacturer Bollegraaf Typ HBT 1216 Year of construction 2009 Driving motor 7,5 kW Length feeding conveyor 6,750 mm Length elevating conveyor 14,400 mm Length goose neck 2,150 mm Grade 30° Effecting width 1,754 mm Height of side wall feeding conv. 500 mm Height of side wall elevating conv. 800 mm Weight 16 t Pit dimensions 10,000 x 3,200 x 1,200 mm (l x w x d) Comments: The press is currently in operation and is to be replaced by a new machine in the 2nd quarter of 2026. Inspections are possible after agreement. We will not assume liability for the given technical data and possible errors.

Condition: good (used), Hohner Economy 25/40 Wire Stitcher Very good condition. A reliable machine with legendary durability. Technical specifications: Capacity: 206 cycles/min Sewing thickness: 25mm (punching up to 40mm without closing the staple from the bottom) Wire diameter: max. 1mm Iodpfxox N I N Ss Addjht Power supply: 380V Weight: 240kg The machine has an adjustable table for block and booklet stitching.

Condition: excellent (used), Year of construction: 2016, functionality: fully functional, machine/vehicle number: 0044, workpiece weight (max.): 200 kg, travel distance X-axis: 1,800 mm, travel distance Y-axis: 2,000 mm, travel distance Z-axis: 1,100 mm, total height: 2,455 mm, total length: 3,000 mm, total width: 3,760 mm, workpiece height (max.): 250 mm, workpiece width (max.): 750 mm, workpiece length (max.): 550 mm, type of input current: three-phase, overall weight: 3,700 kg, feed length X-axis: 350 mm, feed length Y-axis: 250 mm, feed length Z-axis: 256 mm, Equipment: cooling unit, documentation/manual, Wire EDM system GF AgieCharmilles CUT 2000 with loading robot Power on time: 91,716 h Operating hours: 17,889 h Isdpfxex S Ehkj Addeht The system consists of a CNC wire EDM machine GF AgieCharmilles CUT 2000 with integrated automation/loading robot (WorkPartner) and is ideally suited for precise series and single-part production. The CUT 2000 is designed for highly accurate contour cutting with excellent surface quality and stable process control. It features the Vision-5 control unit (Windows XP), automatic wire threading system, integrated dielectric unit, and coaxial flushing, enabling reliable, low-manned operation. The loading robot (GF WorkPartner) transforms the machine into an automated production cell. Depending on the magazine version, workpieces weighing approximately 400 to 800 kg in total can be handled. Automatic loading and unloading allow for extended run times without operator intervention and significantly increase productivity.

Condition: used, Technical details: wire diameter - max.: 9,0 mm wire diameter - min.: 2,0 mm voltage: 380 V / 50 Hz V control voltage: 220 V Total power requirement: 18 kW Weight approx.: 5,0 t Iodpfx Ajvc Akloddjht dimensions: Schmiermittelanlage: 830 x 650 x 1000 mm dimension machine xH: 3,3 x 1,5 x 1,45 m dimensions electric cabinet LxWxH: 0,7 x 1,5 x 1,75 m WIRING AND CUTTING MACHINE / MACHINE WAS UPGRADED WITH A NEW CONTROL SYSTEM IN 2000 A programmable, electronically-hydraulically controlled universal spring coiling machine for the production of right and left-hand tension and compression springs as well as torsion springs. The springs can be produced with any pitch and shape of spring body. Output max. 90 pieces/min. Outer spring Ø 10 - 120 mm Unlimited wire feed length, speed = 27 - 80 m/min. Coiling device: two-finger system wire thickness Ø 2.0 - 9.0 mm; spring outer Ø Ø 10 - 120 mm Single-finger system: wire thickness Ø 3.0 - 7.0 mm; spring outer Ø max. Ø 60 mm Equipment: 5x feed rollers, wire holder 3 mm two-finger Spring length measuring device LION PRECISION-PANTHER Wire roller holder POST, motor-driven, mandrel holder Ø 1,400 mm Lubrication system Control cabinet cooler RITA Hydraulic unit Optional many accessories and/or spare parts! i.D. *

Condition: used, Year of construction: 2005, Machining paths X/Y/Z: 350mm/220mm/220mm, table dimensions X/Y: 680mm/450mm. max. workpiece weight: 750kg, max. workpiece dimensions X/Y/Z: 1000mm/550mm/250mm. Wire diameter range: 0.1mm-0.3mm, wire spool size: 8kg, skewing capacity: 0°-30°. Dimensions X/Y/Z: 2020mm/2050mm/2000mm, weight: approx. 2500kg, operating hours: approx. 60000. Iedex E Ulxopfx Addoht

Condition: excellent (used), Year of construction: 2021, operating hours: 537 h, functionality: fully functional, workpiece weight (max.): 500 kg, travel distance X-axis: 650 mm, travel distance Z-axis: 200 mm, total height: 2,215 mm, total length: 2,820 mm, total width: 1,700 mm, wire diameter (max.): 0.2 mm, workpiece height (max.): 510 mm, workpiece width (max.): 510 mm, workpiece length (max.): 510 mm, type of input current: three-phase, overall weight: 3,220 kg, empty load weight: 3,320 kg, feed length X-axis: 650 mm, feed length Z-axis: 200 mm, feed rate X-axis: 240 m/min, feed rate Z-axis: 240 m/min, table load: 500 kg, input voltage: 400 V, working range: 510 mm, rapid traverse X-axis: 20 m/min, rapid traverse Z-axis: 20 m/min, tank capacity: 930 l, cutting speed: 240 mm/min, travel speed (max.): 240 mm/min, input frequency: 50 Hz, input current: 11 A, Equipment: documentation/manual, 2021 Agie Charmilles CUT AM 500 Wire EDM Machine Discover premium Swiss precision with this 2021 Agie Charmilles CUT AM 500 CNC Wire EDM Machine This high-performance wire EDM machine has only 537 erosion hours and comes from a medical device manufacturing environment, ensuring meticulous maintenance and minimal wear. Ideal for high-precision applications in medical, aerospace, automotive, and mold-making industries. Machine Overview Make/Model: Agie Charmilles CUT AM 500 Machine Type: CNC Wire EDM Machine Year: 2021 Control System: GF Control Erosion Hours: 537 hrs Condition: Very Good – ready for immediate operation Technical Specifications Work Area Max. part dimensions: 510 x 510 x 510 mm Max. part weight (base + parts): 500 kg Dielectric level (min/max): 250–305 mm Iedpfjxtfwxsx Addsht Performance Max. machining speed: 240 mm²/min Surface roughness (Ra):

Condition: used, Steel wire ropes, lifting slings made of steel Length: 10 m Diameter: 25 mm Loops right/left Load capacity: 5 t 6 pieces available 161225ä Ihodpsgzpw Iofx Addst

Condition: good (used), Introma ZD-2 SR Wire Stitcher The machine is in very good condition and ready to use. This is the current production model. Technical specifications: Capacity: 180/min Sewing thickness: max. 25mm Iodpfx Ajx N I N Esddeht Wire diameter: max. 1mm Power supply: 230V Weight: 230kg The machine has an adjustable table for block and booklet stitching. Side and front margins. Instructions included.

Condition: excellent (used), Year of construction: 2020, functionality: fully functional, workpiece weight (max.): 750 kg, travel distance X-axis: 350 mm, travel distance Y-axis: 220 mm, travel distance Z-axis: 220 mm, total height: 2,154 mm, total length: 2,050 mm, total width: 2,234 mm, workpiece height (max.): 220 mm, workpiece width (max.): 550 mm, workpiece length (max.): 800 mm, overall weight: 2,450 kg, warranty duration: 6 months, GF Machining Solutions CUT P350 Year of manufacture: 2020 AC CUT HMI-2 control system Isdpfsxywz Aox Addjht Travel paths (X / Y / Z): 350 x 220 x 220 mm Travel paths (U / V): 350 x 220 mm Max. taper angle: +/- 30° at 200 mm height Integrated Collision Protection (ICP) on all 5 axes Maximum workpiece dimensions: 800 x 550 x 220 mm Maximum workpiece weight: 750 kg Cutting speed: 400 mm²/min Best surface finish: Ra 0.08 µm Available wire diameters: 0.15 mm to 0.33 mm Overall system dimensions: 2050 x 2234 x 2154 mm Total system weight: 2450 kg The machine will be cleaned, completely overhauled, and tested for all functions by us after receipt of order. We are pleased to offer you commissioning of the machine as well as operator training on the control system.

Condition: used, offer consist of: - control for stitching wire Horizon stitching wire control function: prevents the stitching wire is used up completely and must be threaded into the stitching head Ijdpfx Aju Srv Heddoht - compatibel with: Horizon SPF-200A

Condition: excellent (used), 2x Hahn+Kolb tool cabinet on wheels with 6 drawers. The price is for one tool cabinet! Both together cost the corresponding 2400 € plus VAT. Used but almost like new. Minor signs of use on the worktop and otherwise fully functional with 2 keys each. Tool cabinet with 6 drawers L x W x H 1025x705x930 mm Drawers dimensions (inside) L x W x H : 1x 880x590x240mm 5x 880x590x65mm The height is including the rollers ! Fully functional. Ijdpfonucgxex Addeht Pickup and shipping (forwarding) possible

Condition: new, Year of construction: 2025, The dual wire feeder has been designed to increase the efficiency and quality of welding processes in the most demanding industrial environments. Thanks to its innovative design that allows the use of two different types of welding wires, this feeder is the ideal solution for CORMAK laser welding machines, offering users a number of benefits. Dual wire feeder for CORMAK laser welding machines Iedpfx Aowl Ewxsddjht The dual wire feeder is the choice that allows for significant improvement in work standards, while offering the flexibility, efficiency and reliability necessary in modern production processes. This solution meets the expectations of even the most demanding users looking for ways to optimize their IMPROVED PRODUCTIVITY - The dual wire feeder reduces machine downtime associated with spool changes, contributing to faster and more efficient production cycles. VERSATILITY - The dual wire feeder allows for quick adaptation to changing project requirements. PROCESS OPTIMIZATION - Users can easily switch between wires with different diameters or properties to tailor the welding process to specific tasks, ensuring high weld quality and work efficiency. IMPROVED WELD QUALITY - By allowing for dual wire to weld material, the feeder provides better alignment at larger gaps, resulting in longer lasting and cleaner welds. REDUCE OPERATING COSTS - Long-term benefits such as reduced downtime and improved work efficiency allow for significant savings.

Condition: used, Year of construction: 2019, Wire EDM Machine Manufacturer: Mitsubishi Electric Model: MV1200S NewGen Year of manufacture: 2019 Operating hours: approx. 9,500 Control: M800 D-CUBES Mitsubishi Electric control system Hybrid construction Travel paths X/Y/Z: 400 x 300 x 220 mm Travel paths U/V: 120 x 120 mm Max. workpiece dimensions: 810 x 700 x 215 mm Max. workpiece weight: 500 kg Ihodpexpfy Sofx Addjt ODS – Optical Drive System Tubular direct drives in the X/Y axes Linear scales in X/Y axes Intelligent AT – Automatic wire threading For wire diameters 0.10 – 0.3 mm Automatic small-hole detection function 5 controlled axes – Prepared for additional axes PFC – Precise Finish Circuit LLS – Long Life System 10 kg wire station Wire alignment block Wire chopper Compressor cooler tä161225

Condition: new, At Wöhler, we have developed a range of wire processing machines that are primarily used in the brush industry. They can roll round wire into flat wire, count and bundle individual wires and crimp or cut both individual wires and entire strands to a specific length. There are also solutions for rewinding or coiling and twisting individual wires into strands. Cut wire strands to an adjustable length and knot the sections into bundles with the Wöhler WCB 200. Ihedpfexzttksx Addet Produce Bucher tufts with the FWB 700. Roll round wire into flat wire with the FWR 250 - including automatic wire thickness regulation. Wind this flat wire onto spools with the DC 510, cut it to size and bundle the counted sections. Wave, cut and bundle wire strands with the DA 400 or the DA 700. Wave and wind wire strands with the STW 87, the STW 96 or the USTW 6000. Spool up to 44 individual wires into one strand - optionally including twisting. Get in touch with us. Together we will also find solutions for tasks not mentioned here.

Condition: excellent (used), Year of construction: 2014, functionality: fully functional, machine/vehicle number: 591.063.002.0050, travel distance X-axis: 550 mm, travel distance Y-axis: 350 mm, travel distance Z-axis: 400 mm, table width: 600 mm, overall weight: 2,850 kg, table length: 900 mm, Equipment: documentation/manual, The AgieCharmilles CUT 300 Sp is a high-performance and versatile wire EDM, ideal for precision manufacturing of molds, prototypes, and complex components, offering: * extensive spatial travels Ihedpfxjwwrk Nj Addst * large dielectric capacity * ability for taper cutting * robust CNC control system.

Condition: excellent (used), Year of construction: 2017, operating hours: 7,166 h, functionality: fully functional, workpiece weight (max.): 3,000 kg, travel distance X-axis: 800 mm, travel distance Y-axis: 600 mm, travel distance Z-axis: 510 mm, total height: 2,815 mm, total length: 3,475 mm, total width: 3,130 mm, This machine is very well maintained and in excellent condition. You can inspect and test this machine under power. Ihedsvdu Hzspfx Addjt Price is ex works, without dismantling. Manufacturer: Mitsubishi Electronic Year of manufacture: 2017 MODEL: MV4800 Operating hours: approx. 7,166 hrs Application type: Wire EDM Machine type: Wire-cut EDM machine Technical Data – Mitsubishi MV4800 General Information Width: 3,130 mm Depth: 3,475 mm Height: 2,815 mm Weight: 5,700 kg Movements X-axis travel: 800 mm Y-axis travel: 600 mm Z-axis travel: 510 mm U/V travel: 200 (+/-100) mm Workpiece Diameter over bed: 1,250 mm Diameter over saddle: 1,020 mm Workpiece diameter: 505 mm Maximum table load: 3,000 kg Worktable External length: 1,080 mm External width: 780 mm Price significantly reduced. This machine is being sold due to business relocation.

Condition: good (used), Year of construction: 2013, functionality: fully functional, machine/vehicle number: 03DR2150, workpiece weight (max.): 1,500 kg, travel distance X-axis: 600 mm, travel distance Y-axis: 400 mm, travel distance Z-axis: 310 mm, total height: 2,150 mm, total length: 2,687 mm, total width: 3,030 mm, overall weight: 3,500 kg, Equipment: cooling unit, Wire-Cut EDM Machine The machine comes from productive operation and is in fully functional, used condition. All relevant assemblies are complete; the generator cabinet, control system, wire feed, and AT system (Automatic Threader) are all present and complete. Running times according to control system: Processing time: approx. 29,062 h NC on-time: approx. 43,836 h Ready-/TFT downtime: approx. 8,966 h Maintenance records (excerpt): Filter change: last performed at 176 h / 200 h Resin change: 21 h / 1000 h Oil refill: 742 h / 1000 h Conductivity sensor: 742 h / 1000 h Current supply rotation: 57 h / 80 h The machine is complete but shows typical signs of use after more than 10 years in operation Accessories are extensive and well organized Servicing always confirmed as per control system Automatic threading system included Accessories / Equipment: Original Mitsubishi nozzle & roller/bearing kit: various guide rollers upper and lower diamond guides nozzle set (upper/lower nozzle) drying stones / assembly tools NSK/Japan replacement bearings spare tension rollers Manufacturer’s wooden box Mitsubishi Electric Spare and consumables: resin container (packed) filter elements quick adhesive components A/B pH test strips process chemicals (for EDM) logbook / maintenance records Documentation / manuals: complete folders: Operator’s Manual MV Part 1 & 2 training materials “Advance Series” operating instructions (German) Ihodpfx Adox Hadvedjt maintenance and AT maintenance sheets Travels (X / Y / Z): 600 × 400 × 310 mm Working table / workspace: table size: 840 × 640 mm (square table) max. workpiece dimensions: 1050 × 800 × 295 mm max. workpiece weight: 1,500 kg Wire data: wire diameter: 0.1–0.3 mm max. wire feed: 23 m/min tension: 0.5–25 N automatic threading (AT), including fine-threading Taper cutting: opto-linear T/C device, ±75 mm (X/Y), max. taper angle 15° at 260 mm workpiece height Generator / Control system: transistor-controlled pulse generator 15" LCD touch control 6-axis simultaneous control integrated 2D and 3D CAM (Parasolid viewer) NC memory up to 1 GB USB interfaces (2×) Dielectric system tank capacity: 860 l filter flow rate: 50 l/min paper filters (2 pcs) resin container 10 l (ion exchanger)

Condition: good (used), Year of construction: 2008, Cutting hours: 7922 h Fanuc 310 iS-WA CNC X/Y/Z travels: 370 × 270 × 255 mm Max workpiece size: 700 × 600 × 250 mm Tank dimensions: 770 × 600 mm U axis: ±60 mm Ihjdpfox Dit Sex Addst V axis: ±60 mmMachine fully overhauled by Fanuc

Condition: excellent (used), Year of construction: 2017, functionality: fully functional, machine/vehicle number: 591.063.060.0016, workpiece weight (max.): 1,500 kg, travel distance X-axis: 550 mm, travel distance Y-axis: 350 mm, travel distance Z-axis: 400 mm, table width: 600 mm, overall weight: 2,800 kg, table length: 900 mm, Equipment: documentation/manual, The CUT P 550 model from 2017 is an advanced five-axis wire EDM machine, ideal for precise industrial applications: Ihedpfewwrtwex Addot * wide angular range capabilities (up to 30–45°), * efficient and intelligent IPG generator, * accuracy within a few µm, * advanced automation systems and anti-collision protection, * stable, durable design enabling fully automatic operation.

Condition: excellent (used), Year of construction: 2017, operating hours: 8,500 h, functionality: fully functional, workpiece weight (max.): 1,500 kg, travel distance X-axis: 600 mm, travel distance Y-axis: 400 mm, travel distance Z-axis: 310 mm, total height: 2,150 mm, total length: 2,687 mm, total width: 3,030 mm, workpiece height (max.): 305 mm, workpiece width (max.): 1,050 mm, workpiece length (max.): 820 mm, type of input current: AC, table width: 840 mm, overall weight: 3,500 kg, table length: 640 mm, positioning accuracy: 0.003 mm, ### Price heavily reduced ### This machine is very well maintained and in very good condition. The machine is still in production. You can view and test this machine with power on. Price is ex works, without dismantling. Manufacturer: Mitsubishi Electronic Year of manufacture: 2017 MODEL: MV 2400R MV-R Series – Power for Precision Production hours: approx. 8,000 hours Application type: EDM / wire cutting Iedpfxovq Rh Uj Addsht Machine type: Wire EDM machine Technical specifications - Mitsubishi MV 2400R X-axis movement: 600 mm Y-axis movement: 400 mm Z-axis movement: 310 mm Travel (X / Y / Z) in mm: 600 / 400 / 310 Travel (U / V) in mm: 150 / 150 (+/- 75) Max. workpiece dimensions (W x D x H) in mm: 1050 x 820 x 305 Max. workpiece weight in kg: 1500 Table dimensions (W x D) in mm: 840 x 640 Overall dimensions (W x D x H) in mm: 2687 x 3030 x 2150 Machine weight in kg: 3500 Price greatly reduced.

Condition: excellent (used), Year of construction: 2012, functionality: fully functional, machine/vehicle number: 591.063.050.0035, workpiece weight (max.): 1,500 kg, travel distance X-axis: 550 mm, travel distance Y-axis: 350 mm, travel distance Z-axis: 400 mm, table width: 600 mm, overall weight: 2,850 kg, table length: 900 mm, Equipment: documentation/manual, Professional Wire EDM Machine AgieCharmilles CUT 300 (2012) Premium wire electrical discharge machining center from GF AgieCharmilles, ideal for precision manufacturing, tool & die making, and aerospace applications. Ihjdpfjwwq S Sex Addjt

Condition: used, Year of construction: 2004, functionality: unexamined, machine/vehicle number: 80.4055.0109, workpiece weight (max.): 1,000 kg, travel distance X-axis: 450 mm, travel distance Y-axis: 350 mm, travel distance Z-axis: 360 mm, table width: 700 mm, overall weight: 9,000 kg, table length: 500 mm, Makino EDNC 43 CNC Sinker EDM CNC sinker EDM machine (electrical discharge machining) Control: Makino MGF / MGF‑20 / MGF‑60 – stable and widely used in industry Working axes: X = 450 mm, Y = 350 mm, Z ≈ 350 mm Table: 700 × 500 mm, load capacity up to 1000 kg Iedpfxswww Sxo Addjht C‑Axis: full rotation – ideal for rotary electrodes