Kullanılmış Alzmetall Baz 15 satın al (143)

Durumu: mükemmel (kullanılmış), Delme kapasitesi çelik/GG: 32/45 mm Mil montajı: 4 MK projeksiyon: 300 mm Masa ölçüsü: 445 x 445 mm Hfedpfx Aov D E Hlsd Ron tüy vuruşu: 160 mm Mil hızları: 57 - 1340 rpm Besleme oranları: 0,1, 0,2, 0,3 mm Tahrik motoru: 380 V, 1.4/2.2 kW Alan gereksinimi: 920 x 620 x 1880 mm Ağırlık: yaklaşık 440 kg

Durumu: iyi (kullanılmış), Kolon Delme Makinesi ALZMETALL AB3 ESB İş mili: CM3 Rotasyon: 1 aralık 220 -800 RPM + 1 aralık 800-2900 RPM Masa boyutu: Uzunluk 615 mm x Genişlik 470 mm İş mili hareketi: 160 mm Boğaz derinliği: 280 mm Kayış tahriki ile hız ayarı 360° dönebilen masa Otomatik İniş 3 hız: 0,006 - 0,12 - 0,18 mm/dak. Yağlayıcı pompası Gerilim: 380 V Genişlik: 800 mm Derinlik: 1300 mm Toplam yükseklik: 1900 mm Ağırlık: yaklaşık 800 kg Hjdei Tvv Ajpfx Ad Refn

Üretim yılı: 1978, Durumu: işlem için hazır (kullanılmış), Delme mili hareketi: 160mm, Mil bağlantısı: MK4, Devir sayısı: 1750 devir/dak, Konsol mesafesi: 300mm, İlerleme: 0,3mm/devir, Tabla boyutları X/Y: 620mm/470mm, Makine boyutları X/Y/Z: yaklaşık 620mm/950mm/1900mm, Ağırlık: yaklaşık 450kg. Soğutma sistemi ve diş açma aparatı dahil. Yerinde inceleme mümkündür. Hfodpfxexc Ni Dj Ad Rsn

Durumu: yeni, Drilling capacity in steel (diameter): 40.0 mm Throat (distance spindle to column): 293 mm Drilling stroke: 120 mm Morse taper: 3 MT Table size: 515 x 360 mm Spindle speed: 160 – 2250 rpm Column diameter: 115 mm Feed: 0.10 + 0.20 mm/rev T-slots: 2 x 14 x 224 mm Distance spindle/table: 117 / 701 mm Motor power: 1.45 / 1.90 kW Weight: 285 kg Machine height: 1840 mm NEW ALZMETALL MODEL SERIES 7" TFT LCD display with touch function: * Target spindle speed * Actual speed display * Integrated drilling depth indication * Touch zero-point acquisition * Virtual drilling depth scale on the display * Machine status and warning notifications in the display * Service information * Selectable operator language: DE/EN/FR/ES/IT/NL/RU. Features: - Infinitely variable speed adjustment via adjustment lever - Automatic spindle feed with overload protection - Spindle guard with electrical safety interlock - Three separate buttons for clockwise, counter-clockwise, and stop - Mushroom-head (latching) button for EMERGENCY STOP - Lockable main switch - Clockwise and counter-clockwise operation via contactor control - Control voltage: 24 volts - Protection rating: IP 54 - Paint finish: DD textured paint, signal white RAL 9003, PANTONE 7545c, black Hsdpexab Rhefx Ad Rsfn Including special accessories: - 25. Coolant system B.

Durumu: kullanılmış, Üretim yılı: 2001, With Heidenhain positioning control - Year of manufacture: 2001 - Documentation available: Yes - CE marking present: Yes - Serial number: 856 - Control system: CNC - Motor power: 3.0 kW - Maximum spindle speed: 3000 rpm - Model: Radial Drilling Machine - Digital display: Yes Hjdpfowh Smlox Ad Rsfn - Tool holder: SK30 - Table width: 310 mm - Table length: 980 mm - Drilling capacity: 32 mm - X axis travel: 450 mm - Y axis travel: 900 mm - Spindle diameter: 30 mm - Z axis travel: 300 mm - Max. reach: 322 mm - Digital type: Built-in - Number of axes: 3 - Minimum spindle speed: 1 rpm Financial Information VAT: The listed price is exclusive of VAT VAT/margin scheme: VAT is deductible for businesses Delivery and trade-in possible at any time for all items in the industrial sector Lukas van Rossum

Durumu: iyi (kullanılmış), Üretim yılı: 1987, Fonksiyonellik: tamamen fonksiyonel, makine/araç numarası: 5742, - St 60, 30 mm'de delme kapasitesi - Kısa iş mili MK 3 - İş mili stroku 120 mm - boğaz derinliği 293 mm Hfedjq U Swgjpfx Ad Rsn - Masa desteği 420 x 300 mm, 2 T yuvası - İşlenmiş taban plakası 320 x 329 mm, 2 T yuvası - Mesafe taban plakası - matkap aynası 1000 mm - Turnike üzerinden besleme - Ağırlık 220 kg - İş mili hızı 160 - 2250 rpm - Çalışma gerilimi 380 V-50Hz - Ayar kolu vasıtasıyla kademesiz hız ayarı - 2 kademeli motor hızı, 700/1435 rpm - Son duraklara ulaştıktan sonra dönüş yönünü değiştiren kılavuz çekme cihazı - Soğutma sıvısı sistemi tamamen monte edilmiştir. - Makine tabanındaki soğutma sıvısı deposu - LED'li çalışma lambası - RÖHM matkap mandreni 1 - 16 mm - Yeni hassas makine mengenesi (test galibi)

Durumu: iyi (kullanılmış), Üretim yılı: 1998, Çelik/dökme demir delme kapasitesi: 32/38 mm Mil bağlantısı: 3 MK Hedpfx Aswup Exed Rofn Kol uzunluğu: 293 mm Tabla ölçüsü: 300 x 300 mm Mandal stroku: 120 mm İlerlemeler: 0,1/0,2 mm Tahrik motoru: 1,5/1,9 kW Gerekli alan: 900 x 450 x 1870 mm Ağırlık: 270 kg

Durumu: kullanılmış, Üretim yılı: 1980, Bağlantı MK 4 Seri numarası 520 Hedpfxow Sydlo Ad Refn Makine ağırlığı yaklaşık 440 kg

Durumu: kullanılmış, Üretim yılı: 1987, Column drilling machine Manufacturer: ALZMETALL Model: AB 3/ES Year of manufacture: 1987 – workshop tested Machine no.: 23348 Standard equipment includes: - Stepless speed adjustment from 260 to 3,500 rpm - Analog speed display - Operating manual Hodpfew Id Uaex Ad Refn Further important technical data: - 28 mm drilling capacity in ST 60 - 160 mm quill stroke - Spindle taper MK 3 - 115 mm column diameter - 500 x 300 mm table size

Durumu: yeni, Drilling capacity in steel (diameter): 40.0 mm Throat depth: 293 mm Drilling stroke: 120 mm Morse taper: 3 MT Table: 515 x 360 mm Speed range: 160 - 2250 rpm Column diameter: 115 mm Thread cutting: M 24 ST60 Thread cutting: M 30 GG20 Feed: 0.10 + 0.20 mm/rev Hfjdpexab Nwsfx Ad Ron Distance spindle/table: 117 / 701 mm Motor power: 1.0 / 1.6 kW Weight: 270 kg Machine height: 1840 mm NEW ALZMETALL MODEL SERIES 7" TFT LCD touchscreen: * Spindle speed setpoint * Actual value speed display * Integrated drilling depth gauge * Touch zero point setting * Virtual drilling depth scale on display * Machine condition and warning notices in display * Service information * Selectable operator language: DE/EN/FR/ES/IT/NL/RU Equipment: - Thread cutting device * For thread cutting with stop * Max. 6 threads/min (thread cutting capacity depends on spindle speed) * Thread depth adjustable via depth stop * Displayed on the TFT LCD (3 tools) - Infinitely variable speed adjustment via control lever - Automatic spindle feed with overload protection - Spindle guard with electrical interlock - Three separate buttons for clockwise, counterclockwise, and stop - Mushroom-head emergency stop button (latching) - Main switch, lockable - Clockwise/counterclockwise selection via contactor control - Control voltage: 24 Volt - Protection class: IP 54 - Finish: DD textured paint, signal white RAL 9003, PANTONE 7545c, black - Initial fill of machine oil: supplied in a separate bottle Including special accessory: - 25. Coolant system B.

Üretim yılı: 1984, Durumu: işlem için hazır (kullanılmış), Delme kapasitesi çelik/GG: 18/23 mm Mil montajı: 2 MK Hsdpek Tzu Rsfx Ad Rjfn Boğaz: 250 mm Masa boyutu: 250 x 370 mm İş mili hızı: 400 - 5000 rpm Tahrik motoru: 0,48/0,6 kW Alan gereksinimi: 750 x 500 x 1670 mm Ağırlık: 130 kg

Durumu: yeni, Drilling capacity in steel (diameter): 40.0 mm Drilling capacity in cast iron: 45.0 mm Throat: 300 mm Drilling stroke: 160 mm Morse taper: 4 MT Table: 615 x 430 mm Speed range: 100 - 1,800 rpm Column diameter: 145 mm Thread cutting capacity M24 in ST60 Thread cutting capacity M30 in GG20 Feed rates: 0.1-0.2-0.3-0.4 mm/rev Distance spindle / table: 138 / 688 mm Motor power: 1.4 / 2.2 kW Weight: 470 kg Machine height: 1,865 mm NEW ALZMETALL MODEL SERIES 7" TFT LCD display with touch function: * Target spindle speed * Actual speed display * Integrated drilling depth display Hsdpexab Nkjfx Ad Rsfn * Touch-based zero point setting * Virtual drilling depth scale on display * Machine status and warning indicators on display * Service information * Selectable operator languages: DE/EN/FR/ES/IT/NL/RU Equipment: - Thread cutting device * for thread cutting with stop * max. 6 threads/min (thread cutting performance depends on spindle speed) * Thread depth adjustable via depth stop * On TFT LCD display (3 tools) - Infinitely variable speed adjustment via control lever - Electromagnetic feed clutch * with overload protection and electrical safety * Ergonomic cross handle operation * Selectable feed rates: 0.1-0.2-0.3-0.4 mm/rev - Spindle guard with electrical interlock - Three separate buttons for forward - reverse - stop - Mushroom emergency stop button (latching) - Main switch, lockable - Forward and reverse via contactor control - Control voltage: 24 volts - Protection class IP54 - Paintwork: DD structured paint, signal white RAL 9003, PANTONE 7545c, black - First fill of machine oil: oil bottle supplied separately Including special accessories: - 12. LED machine lamp - 24. Coolant system A* integrated in machine base

Durumu: yeni, Drilling capacity in steel (diameter): 40.0 mm Throat depth: 293 mm Drilling stroke: 120 mm Morse taper: 3 MT Table: 515 x 360 mm Speed: 80 - 1,125 rpm Hedpfx Asxabyisd Rofn Column diameter: 115 mm Thread cutting M 24 ST60 Thread cutting M 30 GG20 Feed: 0.10 + 0.20 mm/rev Distance spindle / table: 117 / 701 mm Motor power: 1.0 / 1.6 kW Weight: 270 kg Machine height: 1,840 mm NEW ALZMETALL MODEL RANGE 7" TFT LCD touchscreen display: * Spindle speed setpoint * Actual speed display * Integrated drilling depth indicator * Zero point setting via touchscreen * Virtual drilling depth scale on display * Machine status and warning indicators on display * Service information * Selectable operator language: DE/EN/FR/ES/IT/NL/RU. Equipment: - Thread cutting device * For tapping with stop * Max. 6 threads/min (thread cutting capacity depends on spindle speed) * Thread depth adjustable via depth stop * Displayed on TFT-LCD display (3 tools) - Infinitely variable speed adjustment via control lever - Automatic spindle feed with overload protection - Spindle guard with electrical interlock - Three separate pushbuttons for clockwise, counterclockwise, stop - Emergency stop (mushroom button, latching) - Main switch, lockable - Clockwise and counterclockwise via contactor control - Control voltage 24 volts - Protection class IP54 - Paint finish: DD textured paint, signal white RAL 9003, PANTONE 7545c, black - Initial machine oil fill: oil bottle, supplied loose Including special accessories: - 25. Coolant system B.

Durumu: kullanılmış, Üretim yılı: 1975, Çelikte delme kapasitesi (çap) 35,0 mm Hfjdpfx Adoxabuao Rsn Döküm demirde delme kapasitesi 40,0 mm projeksiyon 300 mm delme stroku 180 mm hız 65 - 1750 rpm masa boyutu 425 x 500 mm sütun çapı 155 mm besleme hızı 0,1-0,2-0,3 m/dak mil yuvası MK 4 MK Motor gücü 0,9 / 1,5 kW ağırlık 450 kg Boyutlar U-G-Y 800 x 650 x 1850 mm meslek okulundan bir makine iyi / bakımlı durumda (!!) Teçhizat: - VARIO tahrikli (V kayışı) sağlam motorlu sütunlu matkap - elektro-otomatik mil beslemesi - kutup değiştirme motoru - kademesiz hız ayarı (VARIO tahrik) - ayarlanabilir delme derinliği durdurucu - 2x T-yuvalı makine tablası * El krankı ile yükseklik ayarlanabilir - 1x kullanılmış makine mengenesi - işlenmiş taban plakası - soğutma sistemi - Bağlantı kablosu + bağlantı fişi - Makine titreşim ayakları - orijinal kullanım talimatları

Durumu: yeni, Drilling capacity in steel (diameter): 55.0 mm Throat: 300 mm Drilling stroke: 140 mm Morse taper: 4 MT Table: 615 x 430 mm Speed range: 70 - 1,200 rpm Column diameter: 145 mm Thread M 30 ST60 Thread M 36 GG20 Feed: 0.10 + 0.30 mm/rev Distance spindle / table: 150 / 735 mm Motor power: 1.8 / 2.9 kW Weight: 380 kg Machine height: 1,850 mm Hjdexabn Tspfx Ad Rjfn BRAND NEW ALZMETALL MODEL SERIES 7" TFT LCD display with touch function: * Spindle speed setpoint * Actual speed display * Integrated drilling depth indicator * Touch zero point setting * Virtual drilling depth scale on display * Machine status messages and warning notifications on display * Service information * Selectable operator language: DE/EN/FR/ES/IT/NL/RU Equipment: - Thread cutting device * for thread cutting with stop * max. 6 threads/min (thread cutting capacity depends on spindle speed) * adjustable thread depth via depth stop * via TFT - LCD display (3 tools) - Automatic spindle feed with overload protection - Stepless speed adjustment via hand lever - Spindle guard with electric interlock - Three separate push buttons for right rotation - left rotation - stop - Emergency stop mushroom button (latching) - Main switch, lockable - Forward and reverse rotation via contactor control - Control voltage 24 Volts - Protection class IP 54 - Paintwork: DD textured paint Signal White RAL 9003, PANTONE 7545c, black - Initial fill of machine oil: oil bottle, supplied loose Including special equipment: - 12. LED machine lamp - 24. Coolant system A* integrated in machine base

Durumu: yeni, Çelikte delme kapasitesi (çap) 18,0 mm Projeksiyon 190 mm Delme stroku 80 mm Mors konik 2 kısa iş mili MK Hız 225 - 4.300 rpm Çalışma gerilimi 400 / 50 Hz Volt Masa: 300 x 240 mm Kolon çapı 65 mm Motor gücü 0,37 / 0,55 kW Ağırlık 110 kg Ekipman: - Geniş iş mili hız aralığı - Kademesiz değişken hız ayarı - İşlenmiş taban plakası - Elektrik sigortalı mil koruması - Motor koruma şalterli kilitlenebilir ana şalter - Saat yönünde ve saat yönünün tersine dönüş için ters çevirme anahtarı - Almanca kullanım kılavuzu Hodpfxexaay Uo Ad Rsfn

Durumu: yeni, Drilling capacity in steel (diameter): 30.0 mm Throat depth: 293 mm Drilling stroke: 140 mm Morse taper: 3 MT Table: 515 x 360 mm Speed range: 225 - 4300 rpm Column diameter: 115 mm Distance spindle / table: 132 / 724 mm Motor power: 1.0 / 1.6 kW Weight: 260 kg Machine height: 1790 mm NEW ALZMETALL MODEL SERIES 7” TFT - LCD display with touch function: * Spindle speed setpoint * Actual speed display * Integrated drilling depth indicator * Zero point transfer via touch * Virtual depth gauge on display * Machine status indicators and warning messages on display * Service information * Selectable operating languages: DE/EN/FR/ES/IT/NL/RU Equipment: - Stepless speed adjustment via lever - Spindle guard with electrical interlock - Three separate push-buttons for clockwise - counterclockwise - stop - Mushroom-head emergency stop button (latching) Hedpsxaap Ajfx Ad Rsfn - Main switch, lockable - Clockwise and counterclockwise rotation via contactor control - Control voltage 24 V - Protection rating IP54 - Coating: DD textured paint signal white RAL 9003, PANTONE 7545c, black

Durumu: yeni, Drilling capacity in steel (diameter): 23.0 mm Hodpfx Adoxabwzo Rjfn Throat depth: 250 mm Drilling stroke: 100 mm Morse taper: 2 MT Table size: 370 x 300 mm Spindle speed: 225 – 4300 rpm Column diameter: 90.0 mm Distance spindle/table: 140 / 670 mm Motor power: 0.6 / 0.95 kW Weight: 175 kg Machine height: 1770 mm Equipment: - Mushroom-head emergency stop button (latching) - Reversing switch for clockwise and counterclockwise rotation - Motor protection switch - Stepless speed adjustment - Digital speed display - Protection class IP 54 - Plug (pre-mounted, cable length 2m) - Spindle guard with electrical interlock - Paint finish: DD textured paint, light grey RAL 7035, anthracite RAL 7016

Durumu: yeni, Drilling capacity in steel (diameter): 50.0 mm Throat depth: 300 mm Quill stroke: 160 mm Tapping M 30 Spindle speed: 100 - 1600 rpm Table size: 615 x 430 mm Drill spindle Morse taper: No. 4 short spindle taper Column diameter: 145 mm Feed rates: 0.1-0.2-0.3-0.4 mm/rev Distance spindle / table: 147 / 688 mm Motor power: 1.8 / 2.9 kW Weight: 450 kg Machine height: 1865 mm Features: - Automatic feed with electro-magnetic feed clutch - 4 feed rates: 0.1-0.2-0.3-0.4 mm/rev Hfjdpexabq Iofx Ad Ron - Stepless speed adjustment - Digital speed display - Feed overload protection - Spindle guard with electrical interlock - Digital speed display - Precision ground base plate - Motor 1.8 / 2.9 kW - 100 - 1600 rpm Special accessories included: - LED machine lamp, Pos. 12 - Tapping device, Pos. 20.0 (tapping with adjustable stop) - Coolant system "A", Pos. 24 (coolant base plate, complete) - Digital drilling depth display, Pos. 37.1 (5-digit LED display)

Durumu: yeni, Drilling capacity in steel (diameter): 60.0 mm Thread cutting: M42 Throat depth: 350 mm Drilling stroke: 200 mm Speed: 60 - 1530 rpm Table size: 720 x 510 mm Drill spindle Morse taper: 4 Short spindle MK Column diameter: 200 mm Feed rate: 0.15-0.2-0.3-0.36 mm/rev Distance spindle / table: 159 / 884 mm Motor power: 3.6 / 4.3 kW Hjdpfjxabgiex Ad Rsfn Weight: 605 kg Machine height: 1950 mm Equipment: - Automatic feed with electromagnetic feed clutch - 4 feed rates: 0.15 / 0.2 / 0.3 / 0.36 mm/rev - Infinitely variable speed control - Digital speed display - Feed overload protection - Spindle safety guard with electrical interlock - Digital speed indicator - Machined base plate Including special equipment: - Coolant system mounted in base, pos. 24 - Thread cutting device, pos. 20.0 - LED machine lamp, pos. 12.

Durumu: yeni, Çelikte delme kapasitesi (çap): 30,0 mm Hodexaa Ufopfx Ad Refn Çıkıntı mesafesi: 293 mm Delme strok: 140 mm Morse konik: 3 MK Tabla: 515 x 360 mm Devir hızı: 225 - 4300 devir/dak. Motor gücü: 1,0 / 1,6 kW Kolon çapı: 115 mm Mil / Tabla mesafesi: 132 / 724 mm Ağırlık: 260 kg Makine yüksekliği: 1790 mm Donanım: - Kilitlenebilir ana şalter - Mantarlı acil durdurma butonu - Sağ/sol yön anahtarı - Termik korumalı motor - Kademesiz devir ayarı - Dijital devir göstergesi - Koruma sınıfı IP 54 - Motor yalıtım sınıfı "F" (155°) - Besleme kablosu (fişsiz, kablo uzunluğu 2 m) - Elektrikli güvenli mil koruması - Renk: DD doku boya, sinyal beyazı RAL9003, PANTONE 7545c, siyah

Durumu: yeni, Drilling capacity in steel (diameter): 40.0 mm Drilling capacity in cast iron: 50.0 mm Throat depth: 300 mm Quill stroke: 160 mm Morse taper: MK 4 Table: 615 x 430 mm Tapping capacity in steel: M24 Tapping capacity in cast iron: M30 Hsdpfxoxaa R He Ad Rsfn Speed range: 100 - 1,800 rpm Feed rates: 0.1 / 0.2 / 0.3 / 0.4 mm/rev Distance spindle / table: 147 / 688 mm Total power requirement: 0.6 / 1.8 kW Weight: 470 kg Machine height: 1,865 mm Equipment: - Electromagnetic feed clutch - With overload protection and electric cross handle switching - Lockable main switch - Motor protection switch - Mushroom head emergency stop button (locking) on front panel - Infinitely variable speed adjustment - Digital speed indicator - Protection class IP 54 - Spindle guard with electric safety interlock - Motor insulation class "F" (155 degrees) - Operating manual in German Including special equipment: - LED machine lamp Pos. 12 - Tapping device Pos. 20.0 (tapping with depth stop) - Coolant system "A" Pos. 24 (base plate for coolant, complete) - Digital drilling depth display Pos. 37.1 (5-digit LED display)

Durumu: yeni, Drilling capacity in steel (diameter): 55.0 mm Hfodpfx Ajxaa E Rod Rsn Thread cutting capacity: M30 / M42 Throat depth: 300 mm Drilling stroke: 140 mm Speed range: 70 - 1,200 rpm Table size: 615 x 430 mm Drill spindle Morse taper: 4 (short spindle MT4) Column diameter: 145 mm Feed: 0.10 + 0.30 mm/rev Distance spindle / table: 150 / 735 mm Weight: 380 kg Machine height: 1,850 mm Equipment: - Automatic feed - Feed device 0.1 + 0.3 mm/rev - Stepless speed adjustment - Digital speed display - Feed overload protection - Spindle guard with electrical safety interlock Including special equipment: - Coolant system mounted in the base, item 24 - Thread cutting device item 20.0 (thread cutting with stop) - LED machine lamp item 12

Durumu: yeni, Drilling capacity in steel (diameter): 40.0 mm Tapping capacity: M24 Throat depth: 293 mm Drilling stroke: 120 mm Morse taper: 3, short quill MT Table size: 515 x 360 mm Spindle speed: 80 - 1125 rpm Hedpfx Adsxaar Rj Refn Feed rate: 0.10 + 0.20 mm/rev Column diameter: 115 mm Distance spindle/table: 117 / 701 mm Total power requirement: 1.0 / 1.6 kW Weight: 270 kg Machine height: 1840 mm Equipment: - Main switch with lockable motor protection switch - Emergency stop mushroom push button (latching) - Infinitely variable speed adjustment - Digital speed display - Feed overload protection - Protection class IP 54 - Spindle guard with electric interlock - Operating manual in German Including special equipment: - Tapping device Pos. 20.0 (tapping with stop) - Coolant system "B" Pos. 25.

Durumu: yeni, Drilling capacity in steel (diameter): 40.0 mm Throat depth: 293 mm Drilling stroke: 120 mm Morse taper: 3 MT Table: 515 x 360 mm Spindle speed: 160 - 2250 rpm Column diameter: 115 mm Feed rate: 0.10 + 0.20 mm/rev Distance spindle/table: 117 / 701 mm Total power requirement: 1.45 / 1.90 kW Weight: 285 kg Dimensions (L x W x H): 500 x 800 x 1840 mm Equipment: - Automatic feed 0.10 + 0.20 mm/rev - Infinitely variable speed control - Short spindle MT 3 - Mushroom emergency stop button (latching) - Reversing switch for clockwise and counterclockwise rotation - Digital speed display - Feed overload protection - Chuck guard with electrical interlock - 2 m cable with 16A plug - Operating manual in German Including special equipment: - Coolant device "B" Pos. 25. Hfodpfx Aexaakasd Ron