Beli Schaal Mesin Meninju Otomatis bekas (78.560)

Kondisi: bekas, 1 Laedpfjzqbl Tox Ac Hef

Kondisi: baik (bekas), Tahun pembuatan: 2004, jam operasional: 37.500 h, Fungsionalitas: berfungsi sepenuhnya, Perlengkapan: dokumentasi / manual, kecepatan rotasi dapat diubah tanpa batas, PERALATAN: Laodezp Ni Dopfx Ac Hef Pengendali FANUC 18i Pemrosesan sisi belakang Spindel sinkron Perkakas yang digerakkan Sumbu C Pompa bertekanan tinggi Konveyor serpihan Sistem penyedotan kabut oli Sistem pemadam kebakaran Ban berjalan untuk komponen Penyalur batang FMB TURBO 3-26

Tahun pembuatan: 1986, Kondisi: siap digunakan (bekas), Daya tekan maksimum: 400kN, jumlah langkah: 100-1200/menit, daya sambungan: 18kW, sambungan udara bertekanan: R 1/2 inci, 6-10 bar, langkah yang dapat disesuaikan: 13, 15, 19, 25, 32, 38, 44, 51, 57mm, langkah tetap maksimum (versi khusus): 57mm, penyetelan tinggi plunger: 60mm, tinggi pemasangan alat: 4 Mm 677, lebar maksimum bukaan pemasangan alat: 690mm, lebar maksimum jalur sabuk: 190mm, tinggi jalur sabuk di atas pelat penjepit: 60-140mm, bukaan alas: 640x220mm, pelat penjepit bawah: 4 Mm 671, pelat penjepit atas: 4 Mm 672, dimensi pemasangan: 4 Mm 667, panjang: 1695mm, lebar: 2185mm, tinggi: 3010mm, berat dengan mekanisme pengumpan: 6,37t. Perlengkapan: kontrol mesin, pelat penjepit alat, dimensi pemasangan, pelat penjepit atas, perangkat pelindung tangan, perangkat pengumpan sabuk BBV 41.202/150, pemantauan ujung sabuk, perangkat pengangkutan dan pengangkatan, dokumentasi lengkap, instruksi pemasangan, pengoperasian, dan pemeliharaan, serta mesin perkakas. Inspeksi di lokasi dimungkinkan. Ljdpfeztra Tsx Ac Hsaf

Kondisi: bekas, Mesin bubut otomatis multi-spindel SCHÜTTE AG 20 Ledpfxjzhcqro Ac Hoaf

Kondisi: bekas, TECHNICAL DATA - Number of axes: 4 - Number of spindles: 2 - Number of turret heads: 2 MAIN SPINDLE - Spindle nose: A2-5 Laodpfxsydfuaj Ac Hof - Spindle drive power: 11 kW - Spindle speed: 45 - 4,500 rpm - Max. diameter of main spindle chuck: 135 mm MAIN SPINDLE - Spindle nose: A2-5 - Spindle drive power: 11 kW - Spindle speed: 45 - 4,500 rpm - Max. diameter of main spindle chuck: 135 mm TURRET 1 - Number of positions: 8 - Travel X/Z: 130 / 145 mm TURRET 2 - Number of positions: 8 - Travel X/Z: 130 / 145 mm ELECTRICAL SUPPLY - Supply voltage: 200 V - Total connected load: 32 kVA WEIGHT AND DIMENSIONS - Required floor space: 3,800 x 1,875 mm - Machine height: 2,420 mm - Machine weight: 4,600 kg OPERATING HOURS - Power-on hours: 10,842 h ACCESSORIES - Control: Fanuc - 3-color status light - Coolant tank - Chip conveyor: rear - Part removal device - Workpiece loading robot * Max. diameter of main spindle chuck: 165 mm

Kondisi: bekas, DATA TEKNIS - Jumlah sumbu: 4 - Jumlah spindle: 2 - Jumlah kepala revolver: 2 SPINDEL UTAMA - Flens spindel: A2-6" - Daya penggerak spindle: 15 [kW] - Kecepatan spindel: 45 - 3500 [rpm] - Diameter maksimal chuck spindel utama: 210 [mm] SPINDEL UTAMA - Flens spindel: A2-6" - Daya penggerak spindle: 15 [kW] - Kecepatan spindle: 45 - 3500 [rpm] - Diameter maksimal chuck spindle utama: 210 [mm] Laedpezf Ra Aefx Ac Hjf KEPALA REVOLVER 1 - Jumlah posisi: 10 - Sumbu lintasan X/Z: 190 / 170 [mm] KEPALA REVOLVER 2 - Jumlah posisi: 10 - Sumbu lintasan X/Z: 190 / 170 [mm] SUPLAI LISTRIK - Tegangan suplai: 380 [V] - Total daya terpasang: 73 [kVA] BERAT DAN DIMENSI - Dimensi ruang diperlukan: 3900 x 2130 [mm] - Tinggi mesin: 2350 [mm] - Berat mesin: 7200 [kg] PERLENGKAPAN - Kontrol: Fanuc 32i - Antarmuka: USB / PCMCIA - Lampu status tiga warna - Pemantauan gaya pemotongan - Tangki cairan pendingin * dengan pompa tekanan tinggi: 15 [bar] - Konveyor serbuk sisa: DROITE - Transformator listrik

Kondisi: bekas, TECHNICAL DATA - Maximum diameter: 26 mm - Maximum feed length: 125 mm - Spindle speed: 366 – 5,020 rpm - Number of spindles: 6 - Central block stroke with taper: 85 mm Hydraulic option: 200 mm - Cross-slide stroke with taper: 36 mm Ljdouhanajpfx Ac Hjaf Hydraulic option: 56 mm - Dimensions: 5,728 x 1,080 x 1,816 mm - Weight: 5,200 kg EQUIPMENT - Counter spindle - Base + drum

Kondisi: bekas, TECHNICAL DATA MAIN SPINDLE - Spindle drive power: 11.7 [kW] - Spindle speed: 6000 [rpm] - Spindle bore: 25.4 [mm] - Minimum resolution C-axis: 0.001 [degree] - Workpiece holder spindle head stroke: 400 [mm] Lasdpfouhadujx Ac Hef - Tool holder slide travel X x Z: 385 x 220 [mm] WEIGHT AND DIMENSIONS - Required installation space: 2200 x 2020 [mm] - Machine height: 2230 [mm] EQUIPMENT - Control system: NUM 1060 - Coolant tank

Kondisi: bekas, TECHNICAL DATA - Number of spindles: 2 - Number of axes: 4 MAIN SPINDLE - Spindle nose: A2-8 - Spindle speed: 3,000 rpm - Max. bar diameter: 80 mm - Max. machinable diameter: 300 mm - Max. diameter over bed: 520 mm - Minimum C-axis resolution: 0.001° SUB SPINDLE - Spindle speed: 6,000 rpm - Max. bar diameter: 53 mm - Minimum C-axis resolution: 0.001° - Travel: 520 mm TURRET - Number of positions: 12 - Travel X/Z: 230 / 460 mm - Driven tool speed: 4,500 rpm ELECTRICAL SUPPLY - Supply voltage: 400 V - Total power: 22.5 kVA WEIGHT AND DIMENSIONS - Footprint: 3,050 x 1,860 mm - Machine height: 1,850 mm - Machine weight: 5,500 kg EQUIPMENT - Control: OSP-P300L-R - Coolant tank * with high-pressure pump - Chip conveyor - Parts remover Laodpsuhbnnsfx Ac Hef - Parts conveyor belt - Bar feeder: Top Automation FU352 - Fire suppression system * * NB: Functionality not guaranteed. To be inspected by a qualified company appointed by the buyer.

Kondisi: bekas, TECHNICAL DATA - Number of axes: 17 - Maximum bar diameter: 25.4 [mm] - Spindle speed: 5000 [rpm] - Spindle drive power: 18 [kW] WEIGHT AND DIMENSIONS - Required floor space: 3500 x 1600 [mm] - Machine height: 1950 [mm] - Machine weight: 8500 [kg] OPERATING HOURS - Power-on hours: 33,026 [h] Lodpfx Acewuu Rgo Hjaf ACCESSORIES - Control system: TORNOS TB DECO - Chip conveyor - Coolant tank: KNOLL * with high-pressure pump * with paper filter - Coolant reservoir - Bar feeder: TORNOS Robobar MSF 522

Kondisi: bekas, en-001 Ljdpfjwvvrbsx Ac Hsaf

Kondisi: bekas, DATA TEKNIS - Jumlah sumbu : 6 - Jumlah spindle : 2 - Jumlah turret : 2 SPINDEL UTAMA - Hidung spindle : A2-5 - Daya penggerak spindle : 3,7 [kW] - Kecepatan spindle : 8000 [rpm] - Diameter maksimal chuck spindle utama : 110 [mm] SPINDEL UTAMA - Hidung spindle : A2-5 - Daya penggerak spindle : 3,7 [kW] - Kecepatan spindle : 8000 [rpm] - Diameter maksimal chuck spindle utama : 110 [mm] TURRET 1 - Jumlah posisi : 10 - Perjalanan sumbu X/Z : 155/170 [mm] - Perjalanan sumbu Y : +/-25 [mm] - Kecepatan alat gerak : 6000 [rpm] Lodpey Ntm Aofx Ac Hjaf - Daya alat gerak : 1,4 [kW] TURRET 2 - Jumlah posisi : 10 - Perjalanan sumbu X/Z : 155/170 [mm] - Perjalanan sumbu Y : +/-25 [mm] - Kecepatan alat gerak : 6000 [rpm] - Daya alat gerak : 1,4 [kW] SUPLAI LISTRIK - Tegangan suplai : 400 [V] BERAT DAN DIMENSI - Kebutuhan ruang : 3300/1950 [mm] - Tinggi mesin : 2000 [mm] - Berat mesin : 3500 [kg] JAM KERJA MESIN - Jam operasi : 11719 [jam] AKSESORI - Kontrol : Fanuc 32i - Antarmuka : USB / PCMCIA - Lampu status 3 warna - Tangki pendingin * dengan pompa tekanan tinggi - Konveyor serbuk : ARRIERE - Pengambilan bagian t- Konveyor bagian - Robot pemuat benda kerja - Transformator listrik

Kondisi: bekas, TECHNICAL DATA - Number of spindles: 9 - Bar diameter capacity: 26 [mm] MAIN SPINDLES 1 TO 6 - Nominal torque: 18.5 [Nm] - Max. spindle speed: 7000 [rpm] - X-axis travel: 70 [mm] - Z-axis stroke: 125 [mm] MAIN SPINDLES 8 AND 9 - Nominal torque: 15 [Nm] Laedpfx Aouhaq Isc Hof - Maximum spindle speed: 10000 [rpm] - X-axis stroke: 110 [mm] - Z-axis stroke: 125 [mm] SUBSPINDLE 7 - Nominal torque: 15 [Nm] - Max. spindle speed: 10000 [rpm] - Z-axis travel: 300 [mm] ELECTRICAL SUPPLY - Supply voltage: 400 [V] - Installed power: 109 [A] DIMENSIONS - Footprint: 9,100 x 1,805 [mm] - Machine height: 2,800 [mm] - Machine weight: 18,500 [kg] OPERATING HOURS - Operating hours: 82,000 [h] EQUIPMENT - CNC Siemens Sinumerik 840D - Chip conveyor - Bar feeder: SIR 36/33 F - Coolant tank: KNOLL VRF 450/2600   * with high-pressure pump   * with paper filtration   * Capacity: 2,600 [l]

Kondisi: bekas, TECHNICAL DATA - Bar diameter: 5-20 [mm] - Max part length (without counter-operation): 100 [mm] - Max part length (with counter-operation): 80 [mm] - Spindle speed: 5000 [rpm] - Max spindle power: 15 [kW] - Max boring/internal thread cutting power: 3.7 [kW] - Number of CNC axes: 23 - Number of cross slides: 8 - Counter-operation slide: 1 - Longitudinal slides: 7 - Sub-spindle units: 1 - Sub-spindle motor power: 1.1 [kW] Lodjuhaq Ujpfx Ac Hsaf - Dimensions: 5880 x 1400 x 1950 [mm] - Weight: 7200 [kg] EQUIPMENT - TORNOS PNC DECO control - HIRTH coupling drum lock - High-pressure pump - Chip conveyor - Turning tool holder - IEMCA PRA 40/33F bar feeder - Operating hours: 31,600

Kondisi: bekas, TECHNICAL DATA - Number of spindles: 6, independently controlled - Bar capacity: 32 mm - Max. spindle speed: 6,300 rpm - Machine equipped with 32 CNC axes - Slide unit 1.1: X and Z axes CNC-controlled - Slide unit 1.2: fixed X axis, Z axis CNC-controlled - Slide unit 2.1: fixed X axis, Z axis CNC-controlled - Slide unit 2.2: X and Z axes CNC-controlled - Slide unit 3.1: X and Z axes CNC-controlled - Slide unit 3.2: fixed X axis, Z axis CNC-controlled - Slide unit 4.1: X and Z axes CNC-controlled - Slide unit 4.2: fixed X axis, Z axis CNC-controlled - Slide unit 5.1: fixed X axis, Z axis CNC-controlled - Slide unit 5.2: X and Z axes CNC-controlled - Slide unit 6.1: X and Z axes CNC-controlled - Slide unit 6.2: X and Z axes CNC-controlled - Counter spindle at position 6.1 EQUIPMENT / ACCESSORIES Laodeuhaxlepfx Ac Hsf - Control: INDEX C200-4 (Siemens SINUMERIK 840D) - Simple NCU - Bar feeder IEMCA SIR MS32/33/P - Central oil supply with high-pressure pump - Chip conveyor KNOLL - Workpiece evacuation with conveyor at position 6 - Cross drilling units at positions 3.1 and 4.1

Kondisi: bekas, TECHNICAL DATA - Number of spindles: 8 - Number of counter spindles: 1 - Hirth coupling - Number of cross slides: 8 - Max. production rate: 50 pcs/min SPINDLES * Max. bar diameter: 21 mm * Spindle speed: 620–6000 rpm COUNTER SPINDLE - Counter spindle of mechanical origin ELECTRICAL SUPPLY - Supply voltage: 380 V WEIGHT AND DIMENSIONS Lasdpfx Acowdahie Hsf - Footprint: 4700 x 1200 mm - Machine height: 2250 mm - Machine weight: 5,850 kg EQUIPMENT - Control system: Fanuc Power Mate - Oscillating stop - Coolant tank - Bar magazine: PRA 40/33F - Bar support and base

Kondisi: bekas, TECHNICAL DATA - Number of axes: 4 MAIN SPINDLE - Spindle nose: A2-6" - Spindle drive power: 11/15 kW - Torque: 218/258 Nm - Spindle speed: 4,500 rpm - Max. bar capacity: 66 mm - Max. machining diameter: 340 mm - Max. swing over bed: 400 mm - Max. main chuck diameter: 190 mm - Minimum C-axis resolution: 0.001° TURRET - Number of positions: 12 - Number of driven positions: 12 - Travel X/Z: 227.5 mm Ljdpfx Aceu Uu R Ns Hoaf - Travel Y: +/-41 mm - Driven tool speed: 6,000 rpm - Driven tool power: 3.7/5.5 kW ELECTRICAL SUPPLY - Supply voltage: 400 V - Total power consumption: 21 kW WEIGHT AND DIMENSIONS - Footprint: 2,000 x 1,600 mm - Machine height: 1,850 mm - Machine weight: 4,800 kg MACHINE HOURS - Power-on hours: 69,240 h EQUIPMENT - CNC control: Fanuc - Interfaces: Ethernet / RS232 / USB / PCMCIA - Coolant tank - Chip conveyor - Oil mist extraction: DONALDSON - Tool measurement probe - Parts catcher - Fire extinguishing system*: SIEMENS * NB: Functionality not guaranteed. Inspection by a qualified company appointed by the buyer is recommended. - Number of driven tool holders: 1 - Number of fixed tool holders: 4 - Collet chuck: EROWA

Kondisi: bekas, DATA TEKNIS - Jumlah sumbu: 6 - Jumlah kepala revolver: 2 SPINDEL UTAMA - Hidung spindel: A2-8" - Kecepatan spindel: 4.000 [RPM] - Daya penggerak spindel: 22 [kW] - Diameter batang maksimum: 80 [mm] - Diameter maksimum pada meja kerja: 780 [mm] - Diameter pemesinan maksimum, revolver 1: 370 [mm] - Diameter pemesinan maksimum, revolver 2: 260 [mm] - Resolusi minimum sumbu C: 0,001 [derajat] KEPALA REVOLVER 1 - Jumlah posisi: 12 - Jumlah posisi yang digerakkan oleh motor: 12 - Kecepatan alat yang digerakkan: 6.000 [RPM] - Daya alat yang digerakkan: 3.7 [kW] - Rentang gerakan X/Z: 225 / 1050 [mm] - Rentang gerakan Y: [mm] - Kecepatan gerakan cepat (X/Y/Z): 25 / 15 / 30 [mm/menit] KEPALA REVOLVER 2 - Jumlah posisi: 8 Laedpfx Acoziqgdj Hjf - Rentang gerakan X/Z: 170 / 1050 [mm] - Kecepatan gerakan cepat (X/Z): 25 / 30 [mm/menit] TAJUK PUSAT - Tipe tajuk pusat: Numerik - Jarak antara ujung: 1030 [mm] SUPPLAI LISTRIK - Tegangan suplai: 200 [V] - Total daya: 54 [kVA] BERAT DAN DIMENSI - Ruang yang dibutuhkan: 4.400 x 2.800 [mm] - Tinggi mesin: 2.570 [mm] - Berat mesin: 9.100 [kg] JAM OPERASI MESIN - Jam operasi: 22.857 [jam] AKSESORI - Pengontrol: Mori MSX-853IV - Lampu status 3 warna - Tangki pendingin * dengan pompa bertekanan tinggi - Penyangga: SMW AUTOBLOK SLU 2 : 12-101 [mm] - Konveyor serpihan: DROITE - Perangkat pengukur alat - Transformator listrik

Kondisi: bekas, DATA TEKNIS - Jumlah poros: 3 SPINDEL UTAMA - Jenis spindel: A2-6 - Daya penggerak spindel: 15 [kW] - Kecepatan spindel: 4000 [RPM] - Diameter batang maksimum: 68 [mm] - Diameter maksimum pada meja kerja: 320 [mm] - Resolusi minimum sumbu C: 0,001 [derajat] KEPALA REVOLVER - Jumlah posisi: 12 - Jumlah posisi yang digerakkan oleh motor: 6 - Langkah X/Z: 210/500 [mm] - Jenis alat: VDI 40 - Kecepatan alat yang digerakkan: 4000 [RPM] - Daya alat yang digerakkan: 3,7 [kW] SENTER - Jenis senter: Manual - Jenis tirus: MK 4 - Langkah senter: 500 [mm] - Langkah pin: 100 [mm] SUPPLAI LISTRIK Lsdpfx Acozrh Sio Hsaf - Tegangan suplai: 400 [V] - Total daya: 17 [kW] BERAT DAN DIMENSI - Luas yang dibutuhkan: 3900 x 1870 [mm] - Tinggi mesin: 1960 [mm] - Berat mesin: 4300 [kg] JAM KERJA MESIN - Jam saat beroperasi: 51376 [jam] - Jam operasi: 11041 [jam] AKSESORI - Pengontrol: Fanuc 18-TB - Tangki pendingin - Konveyor serpihan - Pengambil bagian - Majalah batang: LNS - Chuck 3 rahang

Kondisi: bekas, CNC multi-spindle automatic lathe INDEX MS32C Ljdpfxszpznls Ac Hjaf

Kondisi: bekas, TECHNICAL DATA - Number of spindles: 6 - Max. diameter: 32 mm - Spindle speed: 6,300 rpm - Slide unit 1.1: X and Z axes CNC-controlled Lodpfxouhatpe Ac Hjaf - Slide unit 1.2: X and Z axes CNC-controlled - Slide unit 2.1: X and Z axes CNC-controlled - Slide unit 2.2: X and Z axes CNC-controlled - Slide unit 3.1: X and Z axes CNC-controlled - Slide unit 3.2: X and Z axes CNC-controlled - Slide unit 4.1: X and Z axes CNC-controlled - Slide unit 4.2: X and Z axes CNC-controlled - Slide unit 5.1: X and Z axes CNC-controlled - Slide unit 5.2: X and Z axes CNC-controlled - Slide unit 6.1: X and Z axes CNC-controlled with counter spindle - Slide unit 6.2: X and Z axes CNC-controlled EQUIPMENT - CNC control: SIEMENS 840D - Counter spindle - Polygon turning unit: Slide unit 5.1 - Bar feeder: IEMCA SIR MS32/33 P - Coolant tank: KNOLL * with high-pressure pump - Chip conveyor: KNOLL - Cooling unit - Parts removal - Parts ejector - Fire protection system: KRAFT UND BAUER * Note: Functionality not guaranteed. Must be checked by a qualified company commissioned by the buyer.

Kondisi: bekas, TECHNICAL DATA - Max. machining diameter: 120 [mm] - Max. workpiece diameter: 160 [mm] - Max. workpiece length: 120 [mm] - X/Z travel: 180/430 [mm] - Rapid traverse X/Z: 60/90 [m/min] - Spindle type: A2-5 - Spindle speed: 6000 [rpm] - Spindle power: 10 [kW] Ljdpsuhbf Hefx Ac Hsaf - Turret: 12 stations - Tool type: VDI 40 - Driven positions: 12 - Tool rotation speed: 6000 [rpm] - Loading / unloading time: 2 [s] - Dimensions: 2300 x 2000 x 2700 [mm] - Weight: 5,650 [kg] - Total hours: 14,830 [h] - Cutting hours: 3,600 [h] ACCESSORIES - CNC FANUC 21-iTB - Coolant tank with high-pressure pump - Chip conveyor

Kondisi: bekas, TECHNICAL DATA - Number of axes: 4 MAIN SPINDLE - Spindle nose: A2-8 - Spindle drive power: 18.5 kW - Spindle speed: 4000 rpm - Max. bar diameter: 80 mm - Max. machinable diameter: 366 mm - Minimum C-axis resolution: 0.001° TURRET - Number of positions: 12 - Number of live positions: 12 - Travel X/Z: 280 x 785 mm - Y-axis travel: +/- 50 mm - Driven tool speed: 6000 rpm - Driven tool power: 5.5 kW TAILSTOCK - Tailstock type: Numeric - Taper type: MT5 - Distance between centers: 705 mm ELECTRICAL SUPPLY - Supply voltage: 400 V - Total connected load: 39 kVA MACHINE HOURS - Operating hours: 7,261 hrs WEIGHT AND DIMENSIONS - Required floor space: 3800 x 2143 mm - Machine height: 2232 mm - Machine weight: 6,100 kg ACCESSORIES - Control: MORI MSX-850 III (Mitsubishi 720BM) - Tool measuring probe - 3-color status light - Coolant tank - Chip conveyor Ljdpjyxr U Rjfx Ac Hoaf - 3-jaw chuck: Hydraulic - Number of driven toolholders: 3

Kondisi: bekas, Mesin bubut otomatis multi-spindel GILDEMEISTER GM 20 AC Ledpszpzm Uofx Ac Hoaf

Kondisi: bekas, DATA TEKNIS - Jumlah spindel: 2 SPINDEL UTAMA - Diameter batang maksimum: 42 [mm] - Jarak gerakan: 100 [mm] - Kecepatan spindel: 6000 [RPM] - Daya penggerak spindel: 7,5/5,5 [kW] - Resolusi minimum sumbu C: 0,001 [derajat] SPINDEL LAWAN - Diameter batang maksimum: 34 [mm] - Kecepatan spindel: 5000 [RPM] - Daya penggerak spindel: 5,5/3,7 [kW] - Resolusi minimum sumbu C: 0,001 [derajat] - Jumlah kepala revolver: 2 KEPALA REVOLVER ATAS - Jumlah posisi: 8 - Jarak gerakan X: 140 [mm] - Jarak gerakan Z: 235 [mm] - Jarak gerakan Y: 70 (+/-35) [mm] - Kecepatan alat bantu yang digerakkan: 5000 [RPM] - Daya alat bantu yang digerakkan: 1,0 [kW] KEPALA REVOLVER BAWAH - Jumlah posisi: 6 - Jarak gerakan X/Z: 140 / 310 [mm] PASOKAN LISTRIK - Total daya: 30 [kVA] BERAT DAN DIMENSI - Luas yang dibutuhkan: 2.220 x 1.460 [mm] - Tinggi mesin: 1.700 [mm] - Berat mesin: 3100 [kg] JAM MESIN Ljdpfx Acsuhad Ue Heaf - Jam operasi: 14072 [jam] AKSESORI - Pengontrol: Fanuc Oi-TD - Konveyor sabuk suku cadang - Alat pengeluarkan suku cadang - Konveyor serpihan - Majalah batang dengan pengaturan awal - Transformator listrik