Beli Plunger Berongga Silinder bekas (2.405)

Tahun pembuatan: 1955, Kondisi: siap digunakan (bekas), Satu mesin penggiling silinder bagian dalam konvensional Fortuna tersedia. Jarak antara senter: 1500mm, tinggi senter: 225mm, diameter benda kerja maks.: 450mm, berat benda kerja maks.: 300kg, diameter batu gerinda: 450mm, lebar batu gerinda: 80mm, lubang: 203mm, kecepatan putar: 265 rpm, dimensi mesin X/Y/Z: sekitar 3450mm/1450mm/1550mm, berat: sekitar 4000kg. Dokumentasi tersedia. Inspeksi di lokasi dimungkinkan. Nledpfjyg Nvtox Afvsf

Tahun pembuatan: 2012, Kondisi: siap digunakan (bekas), A Karstens GP Basis CNC cylindrical grinding machine with a swiveling grinding spindle head is available. Grinding length: 650 mm, center height: 250 mm, workpiece headstock: MT4, tailstock: MT4, wheel diameter: 400 mm, spindle diameter: 80 mm, sleeve length: 250 mm, speed: 3,000 rpm, spindle power: 1.5 kW, control: Siemens and Balance System VM25. Documentation available. On-site inspection possible. Nledpfx Asu Nlk Sefvef

Tahun pembuatan: 2013, Kondisi: siap digunakan (bekas), A Tschudin CNC centerless cylindrical grinding machine is available. Workpiece diameter min./max.: 1.5mm/100mm, max. grinding length: 250mm, grinding wheel diameter external/internal: 400mm/203.2mm, peripheral speed: 50m/s, grinding wheel drive power: 11kW, regulating wheel diameter external/internal: 225mm/127mm, speed: 265rpm, inclination: +/-5°, power: 3.7kW. Machine dimensions X/Y/Z: approx. 2000mm/2400mm/1900mm, weight: approx. 6000kg, control system: Fanuc 21i-MB. Includes Knoll Micro Pur 240 F fine filter, Streuli SHSRT300-TL142/180 lifting station, and Kraft & Bauer FB703S-UV3-TFM70° fire extinguishing system. Documentation available. On-site inspection is possible. Nledpfxswwllge Afvjf

Tahun pembuatan: 1979, Kondisi: siap digunakan (bekas), de Nljdpfx Afsyln Dtjvof

Kondisi: bekas, Tahun pembuatan: 2000, Diameter penggerindaan: 500 mm Panjang penggerindaan: 1000 mm Tinggi antara titik: 250 mm Mesin telah diperbaiki sebagian dengan geometri baru dan hanya digunakan selama beberapa minggu sebelum dijual kembali karena kebangkrutan. - Perawatan besar - Geometri meja baru - Pengecatan sebagian di bagian dalam Peralatan cakram gerinda KIRI 400x63x127 mm (Standar) Peralatan cakram gerinda KANAN 300x40x127 mm Nlodpjxzk Niefx Afvjf Perangkat penggerindaan internal Ø120 mm untuk spindel frekuensi tinggi Pengontrol CNC KELCO 120 Sumbu C untuk penggerindaan bentuk tidak bulat. Kel-Poly SUMBU B: Sumbu B yang dikendalikan CNC KELCO 120: v konstan 35 m/detik atau 45 m/detik Spindel penggerindaan internal frekuensi tinggi Unit penggerak untuk spindel MFV dan MFZ Penarikan pinol hidrolik untuk kepala tetap TIDAK ADA penyesuaian mikro pada kepala tetap Insersi pinol pegas Pendingin meja atas Kepala spindel benda kerja standar MK 5 DIN 55026 Ukuran 5" Penyesuaian MIKRO untuk kepala spindel benda kerja standar Perangkat perataan pada meja bawah Pemosisian panjang aktif KELPOS, MARPOSS, dipasang pada kepala gerinda Sistem pengukuran alat KELSET, MARPOSS Sensor pemotongan MARPOSS Pengontrol pengukuran MARPOSS Minialsar siap Filter pita kertas

Kondisi: baik (bekas), Tahun pembuatan: 2001, Fungsionalitas: berfungsi sepenuhnya, Grinding wheel 508x254 (305) mm, regulating wheel 330x254 (305) mm, regulating wheel speed 0–115 rpm, grinding wheel peripheral speed 45 m/sec, grinding diameter 2–150 mm, grinding wheel drive 45 kW, machine weight 6.5 t, space requirement approx. 3.0x1.5 m Nledpfx Asuy Ifgofvof The machine will be equipped with a new Siemens S7 control system including a new operator panel before sale. The dressing spindle for the grinding wheel is electrically operated via a servomotor. The machine will be completely overhauled, with defective parts repaired or replaced. Various options available (coolant system, infeed/outfeed systems, workpiece rulers, etc.).

Kondisi: diremajakan ulang (bekas), Tahun pembuatan: 2017, Fungsionalitas: berfungsi sepenuhnya, lebar roda gerinda: 150 mm, diameter roda gerinda: 305 mm, tahun perombakan terakhir: 2025, Grinding wheel diameter 305x150 mm, workpiece diameter 1-40 mm, machine for plunge and through-feed grinding, PLC control, coolant system, hardened and ground guideways, grinding and regulating spindles hydraulically mounted in three-point hydrodynamic bearings, hydraulically adjustable dressers for grinding and regulating wheel, regulating wheel drive adjustable via DS motor, new German-made electrical system with Siemens components, Siemens S7 control. Nljdpfx Aewi H Uajfvjf

Kondisi: baru, Tahun pembuatan: 2025, lebar roda gerinda: 480 mm, diameter roda gerinda: 720 mm, Workpiece diameter: 1 - 300 mm; grinding wheel diameter max. 725 mm; grinding wheel width 300-380 mm; weight of the base machine approx. 13.5 t; drive power max. 100 kW. Nlsdpfjdld T Rox Afvof Centerless grinding machine for through-feed and plunge grinding, fixed grinding center, grinding wheel diameter 725 mm for maximum service life and productivity, especially with conventional grinding wheels. Hydrostatically guided slides for highest accuracy of grinding and regulating slides. Direct drive via servo motors for both grinding and regulating slides. Dresser with a separate slide for profile template and servo contouring. Height adjustment of the guide rail via servo motor, allowing easy and fast retooling.

Kondisi: bekas, TECHNICAL DATA - Distance between centers: 400 mm - Center height: 125 mm - Max. workpiece weight between centers: 150 kg - Z-axis travel: 600 mm Nljdsuhbxyepfx Afvof - Z-axis rapid traverse: 15 m/min - Table swivel range: +/- 6° GRINDING SPINDLE HEAD - Grinding wheel dimensions: 500 x 80 x 203.2 mm - Peripheral speed: 60 m/sec - Power: 9.5 kW - Head position: -30° WORKPIECE SPINDLE HEAD - Taper: MT5 - Speeds: 5 - 1500 rpm - Power: 2.1 kW - Bore: 34 mm TAILSTOCK - Taper: MT3 - Quill travel: 80 mm ELECTRICAL SUPPLY - Voltage: 400 V - Frequency: 50 Hz - Installed power: 16 kVA WEIGHT AND DIMENSIONS - Required floor space: 3650 x 3050 mm - Machine height: 2000 mm - Machine weight: 4850 kg MACHINE HOURS - Operating hours: 42,000 h EQUIPMENT - CNC: Siemens 840 D - Incremental electronic handwheel - Automatic tailstock center - Diameter and length monitoring - Robot for loading and unloading - Coolant unit - Drip tray - Oil mist extractor - Diamond dresser with dresser wheel - Second grinding head with CBN grinding wheel and rotary wheel dresser - Fire extinguishing system* *Note: Functionality not guaranteed. To be verified by a qualified company designated by the buyer.

Kondisi: bekas, TECHNICAL DATA - Distance between centres: 1000 mm - Centre height: 175 mm - Travels (Z/X): 1050 x 275 mm - Max. feeds (Z/X): 10 x 5 m/min - Grinding wheel headstock type: 2 external, 1 internal - External left grinding wheel dimensions: 500 x 63 x 127 mm - Right grinding wheel dimensions: 400 x 63 x 127 mm - Grinding wheel motor power: 7.5 kW - Rotational speed: 1670 - 2110 rpm - Grinding wheel headstock orientation: -15 to +225° - Resolution: 0.001° - Workpiece spindle headstock taper: MT5 - Workpiece spindle headstock speed: 1 - 1027 rpm - Workpiece spindle headstock power: 0.785 kW - Tailstock: MT3 - Quill stroke: 35 mm - Weight: 7000 kg - Hours under power: 47,959 h EQUIPMENT - Distance between centres: 1000 mm - Centre height: 175 mm - Travel (Z/X): 1050 x 275 mm - Max. feeds (Z/X): 10 x 5 m/min - Type of grinding spindle headstock: 2 external grinding wheels, 1 internal grinding wheel - Left external grinding wheel dimension: 500 x 63 x 127 mm - Right grinding wheel dimension: 400 x 63 x 127 mm - Grinding wheel motor power: 7.5 kW - Rotational speed: 1,670 - 2,110 rpm - Grinding wheel spindle head orientation: -15 to +225° - Resolution: 0.001° - Workpiece spindle headstock taper: Morse type 5 - Workpiece spindle headstock rotational speed: 1 - 1,027 rpm Nljdpfx Ajuhbyqjfvef - Workpiece spindle headstock power: 0.785 kW - Counter spindle headstock: Morse type 3 - Tailstock quill stroke: 35 mm - Weight: 7,000 kg - Hours under power: 47,959 h

Kondisi: bekas, TECHNICAL DATA Nledpfsxrg Hxox Afvef - Centre height: 100 [mm] - Distance between centres: 650 [mm] - Max. table swivel: [degrees] - Travel: 650 [mm] - Feed rate: 100 - 3500 [mm/min] GRINDING WHEEL HEADSTOCK - Swivel range: [degrees] - T1 grinding wheel dimensions: 350 x 32 x 127 [mm] - Power: 3 [kW] - Speed: 1600 - 2200 [rpm] - Peripheral speed: [m/s] WORKPIECE HEADSTOCK - Spindle speed: up to 1200 [rpm] - Power: 0.5 [kW] - Taper type: MT4 - Max. workpiece weight: 20 [kg] - Swivel range: 0 - 90 [degrees] ELECTRICAL SUPPLY - Supply voltage: 400 [V] - Power: 8 [kVA] WEIGHT AND DIMENSIONS - Required space: 00 x 00 [mm] - Machine height: 1650 [mm] - Machine weight: 1900 [kg] MACHINE HOURS - Power-on hours: 01 [h] ACCESSORIES - Sony LG20-2 display - Automatic contact detection: SENSITRON 6 - 1 tailstock with fine adjustment - 2 internal grinding spindles: 20,000 / 60,000 [rpm] - Fixed dressing device - Coolant tank - 1 steady rest with three fingers - 3-jaw chuck Ø 100 mm - Various grinding wheels

Kondisi: bekas, TECHNICAL DATA - Distance between centers: 1000 mm - Center height: 175 mm - Table swivel: 9° - Universal grinding wheel spindle headstock - Left grinding wheel dimensions: 400 x 50 x 127 mm - Motor power: 3 kW Nlodpfxexy S A Is Afvef - Spindle speed: 1500 / 1700 / 2200 rpm - Grinding wheel headstock swivel: 270° (3 x 90°) - Internal spindle bore: 90 mm - Workpiece headstock swivel: 180° - Spindle speed: 20 - 400 rpm - Internal taper of spindle: Morse 5 - Motor power: 0.9 kW - Tailstock internal taper: Morse 4 - Tailstock quill stroke: 30 mm - Dimensions: 2860 x 1680 x 1670 mm - Machine weight: 2500 kg ACCESSORIES - Automatic cycle (roughing, finishing, and return) - Dead center - Coolant tank with paper filter - 1 internal grinding spindle - 1 diamond holder - 2 two-button steady rests - 1 three-button steady rest - 1 set of drivers - Various grinding wheel holders

Kondisi: bekas, TECHNICAL DATA - Centre distance: 200 mm - Centre height: 100 mm - Travel (X/Z): 130 / 170 mm GRINDING WHEELHEAD SPINDLE - Wheel dimensions: 400 x 63 x 127 mm - Peripheral speed: 45 m/s - Power: 3 kW - Orientation: 30° WORKHEAD SPINDLE - Taper: MT4 - Speeds: 600 - 3000 rpm - Power: 0.5 kW - C-axis indexing accuracy: +/- 0.5° TAILSTOCK - Taper: MT2 - Quill stroke: 30 mm ELECTRICAL SUPPLY - Voltage: 400 V - Frequency: 50 Hz - Installed power: 19 kVA DIMENSIONS - Footprint: 1760 x 2180 mm - Height: 2630 mm - Weight: 4,000 kg MACHINE HOURS - Power-on hours: 46,943 h - Operating hours: 21,529 h ACCESSORIES - CNC: FANUC 16TB - Options: Studer Release B, Pictogramming - Interface: RS232C - Electronic offset levers - Direct measuring systems on X and Z axes - Tailstock with fine concentricity adjustment - Hydraulic backlash compensation for tailstock quill - Swivelling dressing wheel on table: FISCHER AES-72x230/3 - Grinding wheel dynamic balancing: DITTEL HBA 4000 - Diameter measuring system: MOVOMATIC ES400 - Loading/unloading robot system: FELSOMAT - Automatic front door - Coolant system - Electrostatic extraction: ELOSTA BF2000 - Pneumatic collet chuck - 1 grinding wheel holder - 1 grinding wheel - Support arm for Zero-G grinding wheel change - 1 balancing arbor Nljdpfeuhbxmox Afvsf

Kondisi: bekas, TECHNICAL DATA - Distance between centers: 400 [mm] - Center height: 125 [mm] - Max. workpiece weight between centers: 150 [kg] - Z-axis stroke: 600 [mm] - Z-axis rapid traverse: 15 [m/min] - Table adjustment: +/- 6 [°] GRINDING SPINDLE HEADSTOCK Nsdpfjuhbx Hjx Afvslf - Grinding wheel dimensions: 500 x 80 x 203.2 [mm] - Peripheral speed: 60 [m/sec] - Power: 9.5 [kW] - Head position: -30 [°] WORKPIECE SPINDLE HEADSTOCK - Taper: MT5 - Speeds: 5 - 1500 [rpm] - Power: 2.1 [kW] - Bore: 34 [mm] TAILSTOCK - Taper: MT3 - Quill stroke: 80 [mm] ELECTRICAL SUPPLY - Voltage: 400 [V] - Frequency: 50 [Hz] - Installed power: 16 [kVA] WEIGHT AND DIMENSIONS - Required space: 3,650 x 3,050 [mm] - Machine height: 2,000 [mm] - Machine weight: 4,850 [kg] MACHINE HOURS - Operating hours: 31,000 [h] ACCESSORIES - CNC: Siemens 840 D - Offset electronic handwheel - Automatic tailstock center - Diameter and length measurement system - Robot for loading and unloading - Cooling unit - Coolant tray - Oil mist extractor - Diamond dresser with wheel - 2nd grinding head with CBN grinding wheel and rotary wheel dresser - Fire extinguishing system* *NB: Functionality not guaranteed. To be checked by a qualified company appointed by the buyer.

Kondisi: bekas, en-001 Nlodpjuhbx Tsfx Afvof

Kondisi: bekas, TECHNICAL DATA - Centre Height: 125 mm - Distance Between Centres: 400 mm - Grinding Wheel Dimensions: 400 x 127 x 50 mm Nsdsuhbxtjpfx Afvolf - Power: 4 kW - Max. Workpiece Weight: 30 kg - Space Requirement: 3000 x 3520 mm - Weight: 4000 kg EQUIPMENT - FANUC 21i-T CNC - B-axis with 1° accuracy - 3-jaw chuck - Tool holder flanges - 1 external grinding wheel - 1 dressing device - Counter centre with fine adjustment - 1 internal grinding device with spindle 42,000 rpm - Coolant tank with paper filter - Workpiece probe

Kondisi: bekas, TECHNICAL DATA - Distance between centres: 650 mm - Centre height: 175 mm - Max. workpiece weight between centres: 80 kg - Travel X/Z: 285 / 800 mm - X-axis programmable feed rate: [mm/min] - Resolution: 0.0001 mm - Z-axis programmable feed rate: [mm/min] - Resolution: 0.0001 mm - Table swivel range: 0 - 8.5° GRINDING WHEEL HEADSTOCK - T1 grinding wheel dimensions: 500 x 63 x 203.2 mm - Speed: 50 m/s - Power: 9 kW - Manual swivel range: -15 / +195° - Minimum increment: 2.5° - Internal grinding: 40,000 rpm - Power: 3 kW Nljdpfx Afeylc R Usvsf WORKPIECE HEADSTOCK - Taper type: MT5 - Speed: 1 - 1,500 rpm - Power: 1.8 kW - Bore: 30 mm - Minimum resolution C-axis: +/- 0.5° TAILSTOCK - Taper type: MT4 - Quill diameter: 50 mm - Quill stroke: 35 mm ELECTRICAL SUPPLY - Supply voltage: 400 V - Total power/drive capacity: 20 kVA WEIGHT AND DIMENSIONS - Required floor space: 2,670 x 2,050 mm - Machine height: 1,900 mm - Machine weight: 4,000 kg MACHINE OPERATING HOURS - Power-on hours: 190 h ACCESSORIES - Control: FANUC Oi-TD - Electronic handwheel - 3-colour status beacon - Oil mist extraction unit - Linear measurement systems axes: X / Z - Dynamic balancing of grinding wheels: MPM - Automatic contact detection: SENSITRON 6 - Fixed dressing device - Workpiece measuring probe - Coolant tank: 375 l * with paper filter

Kondisi: bekas, DATA TEKNIS - Jarak antara titik tengah: 1000 [mm] Nedpfezrp Edjx Afvslf - Tinggi titik tengah: 180 [mm] - Berat benda kerja maksimum antara titik tengah: 100 [kg] DUDUKAN SPINDEL GERINDA - Penggerindaan luar * Daya: 7,5 [kW] * Dimensi roda gerinda: 500/80/203 [mm] DUDUKAN SPINDEL PENAHAN BENDА - Kecepatan: 10-800 [RPM] SUPPLAI LISTRIK - Tegangan suplai: 400 [V] AKSESORI - Pengontrol: Fanuc Oi-TF - Lampu indikator status tiga warna - Peralatan pengukur alat: Marposs - Tangki pendingin * dengan filter kertas * dengan pendingin pendingin

Kondisi: bekas, TECHNICAL DATA - Centre height: 100 [mm] - Centre distance: 650 [mm] - Internal grinding length: 100 [mm] - Ø Internal grinding: 3 to 40 [mm] - Max table swivel: 30 [°] - Workpiece holder headstock * Spindle speed (variable): 60–1200 [rpm] * Motor power: 0.5 [kW] * Internal taper: Morse 4/2 - Grinding wheel dimensions: 350 x 30 x 127 [mm] - Grinding wheel headstock * Power: 3 [kW] * Swivel angle: 15/30 [°] - Max workpiece weight: 20 [kg] - Total power consumption: 5 [kW] WEIGHT AND DIMENSIONS - Required space: 3000 x 1400 [mm] - Machine height: 1600 [mm] - Machine weight: 1900 [kg] ACCESSORIES - Complete internal grinding attachment: 45,000 [rpm] - 1 complete coolant unit - 1 tailstock with fine adjustment Nlodpfx Afsuhby Rsvof - 1 reversible and adjustable dressing device - 1 pivoting diamond holder - 2-axis digital readout X, Y - 3-point steady rest

Kondisi: bekas, 1 Njdpjy Tb Aaefx Afvslf

Kondisi: bekas, DATA TEKNIS - Jumlah poros: 3 - Tinggi tengah: 175 [mm] Nodpfx Aouhbydjfvolf - Jarak antar tengah: 1000 [mm] POROS LINEAR - Panjang penggerindaan: 500 mm - Rentang gerakan X x Z: 267 x 650 [mm] SPINDEL PENGGERINDA - Dimensi roda penggerinda luar: 500 x 80 x 203 [mm] - Daya spindel penggerinda: 7,5 [kW] - Kecepatan potong: 44 [m/s] SPINDEL BENDA KERJA - Jenis tirus: CM5 - Sumbu C: +/-0,5 [°] - Daya: 1 [kW] - Kecepatan putar: 30–1000 [rpm] SPINDEL LAWAN - Jenis tirus: CM3 - Langkah selongsong: 35 [mm] - Diameter selongsong: 50 [mm] - Maks. berat benda kerja antara tengah: 130 [kg] PASOKAN DAYA - Tegangan suplai: 400 V, 50 Hz - Dimensi mesin: 2700 x 2350 x T. 2100 [mm] - Berat: 4.000 [kg] JAM OPERASI - Jumlah jam operasi: 17.775 AKSESORI - Pengontrol CNC FANUC 16i-TA - Sistem pictogram - Studer RELEASE C - Kendali jarak jauh dengan roda tangan elektronik - SENSITRON - Perangkat penyeimbang dinamis Hydrobalance HBA 40000-1 - Lengan peraba panjang otomatis MOVOMATIC C25 - Lengan pengukur diameter luar in-process MOVOMATIC - Pelindung roda penggerinda dengan kemiringan otomatis - Perangkat berlian tetap pada spindel benda kerja - Tangki pendingin: 375 [l] - Filter kertas - Sistem penyedot kabut oli - Flens dudukan roda penggerinda

Kondisi: bekas, TECHNICAL DATA - Number of axes: 6 - Center height: 175 mm - Distance between centers: 650 mm LINEAR AXES - Grinding length: 800 mm - Stroke X x Z: 310 x 850 mm GRINDING WHEEL HOLDER SPINDLE HEADSTOCK - Continuous orientation (B axis): +/- 9° - B axis precision (High speed machining): 0.001° - Outer grinding wheel dimensions: 500 x 80 x 20 mm - Grinding wheel holder spindle drive: 12.5 kW - Rotational speed: 1400–3200 rpm WORKPIECE HOLDER SPINDLE HEADSTOCK - Taper type: ISO50 - C axis indexing accuracy: 0.001° Nljdpfxeu Haf Ej Afvjf - Power: 4 kW - Rotational speed: 1–1000 rpm SYNCHRONISED TAILSTOCK SPINDLE - Taper type: CM4 - Quill stroke (W axis): 90 mm - Quill diameter: 50 mm - Power: 1.6 kW - Max. workpiece weight between centers: 50 kg ELECTRICAL SUPPLY - Supply voltage: 400 V, 50 Hz MACHINE HOURS - Working hours: 36,000 EQUIPMENT - CNC FANUC 31i-A control - Software: * StuderWIN * Pictogramming * StuderThread only cycles * StuderTechnology - Remote control with electronic handwheel - Linear scales on X and Z axes - Automatic length probing arm MOVOMATIC C25 - In-process external diameter gauging arm MOVOMATIC DM205 - Coolant tank 375 liters - Paper filter - Oil mist extraction - Grinding wheel loading arm - Powered diamond dressing by manual dial (100 mm diameter) on table - SENSITRON - Automatic dynamic balancing DittelM6000 - Grinding wheel holder flanges - Interface for AROBOTECH steady rest - B3 PROFIBUS interface for automatic loading

Kondisi: bekas, DATA TEKNIS - Jarak antar ujung: 1000 [mm] - Tinggi antar ujung: 175 [mm] - Rentang pergerakan X/Z: 285/1150 [mm] - Kecepatan umpan terprogram pada sumbu X: [mm/menit] - Resolusi: 0,0001 [mm] - Kecepatan umpan terprogram pada sumbu Z: [mm/menit] - Resolusi: 0,0001 [mm] DUDUKAN CAKRAM GERINDA - Orientasi: 0/30 [derajat] * Dimensi cakram gerinda: 500x63 [mm] DUDUKAN BENDAPAN - Tipe kerucut: ISO50 - DUDUKAN PENAHAN PASOKAN LISTRIK Nsdpfext U Rhjx Afvelf - Tegangan suplai: 400 [V] JAM KERJA MESIN - Jam operasi: 30064 [jam] AKSESORIS - Pengontrol: FANUC Oi-TD - Roda tangan elektronik - Perangkat penyesuaian otomatis - Tangki pendingin * dilengkapi dengan filter kertas

Kondisi: baik (bekas), schleifmaschine-001 Njdpsxcblqefx Afvslf

Kondisi: baik (bekas), Tahun pembuatan: 2011, Diameter penggerindaan maksimum 290mm, panjang penggerindaan maksimum 800mm, ukuran roda penggerinda 290mm x 63mm (diameter lubang). Pengontrol Fanuc 21i-TB, Nsdpfx Afjtudfdjvjlf kecepatan kepala kerja 1.000 rpm, daya spindel 5 kW, kemiringan meja +6/-3,5 derajat, sudut kemiringan kepala kerja 0-90 derajat. motor spindel internal 1,5 kW. dilengkapi dengan cairan pendingin.