Jung Jf-520 pirkti naudotą (4 786)

Būklė: labai geros būklės (naudotas), Gamybos metai: 1996, JUNG JF 600 Surface Grinding Machine Jung JF 600 Year of Manufacture 1996 Overhauled 2018 Excellent CONDITION This machine comes from the training workshop of a renowned German mechanical engineering company. Technical Data: Year of Manufacture: 1993 / 2018 Technical Specifications: Table Length: 600 mm Table Width: 250 mm Axis Travel: Longitudinal Travel (X-axis): 600 mm Cross Travel (Z-axis): 280 mm Maximum Distance between Table and Spindle Center: 500 mm Grinding Length: 600 mm Table Speed: Continuously variable from 1 m/min to 24 m/min Creep Feed: from 0.03 m/min to 0.40 m/min Automatic Cross Feed: Continuously variable from 0.010 mm/min to 10,000 mm/min Connection 50 Hz 3x: 380 Volt Grinding Spindle Motor: 9.5 kW Total Power Requirement: 13 kVA Machine Weight approx.: 2,500 kg Machine Dimensions: Length: 2,910 mm Width: 2,320 mm Height: 1,840 mm Various Accessories: Coolant system About the Machine: Itjdpfx Aboyxdals Nji For sale is a Jung JF 600 surface grinding machine. This universal surface grinding machine is in excellent original condition. It comes from an operation where it was only used occasionally for training purposes. The machine features a very user-friendly control system. A grinding travel of 600 mm on the longitudinal axis as well as a cross travel of 300 mm make it particularly suitable for toolmaking, fixture construction, and small batch production. Its comprehensive standard equipment and easy operation distinguish this machine series. The robust spindle head and the double V-guideways in both longitudinal and cross axes ensure long-lasting precision. The intuitive layout of the controls simplifies operation and significantly increases productivity. The guideways are regularly lubricated via central lubrication. The Jung has been mechanically and electrically inspected by us. Take the opportunity to view and test the Jung machine under power at our premises. More surface grinding machines from well-known manufacturers can be found on our website.

Būklė: visiškai atnaujintas (naudotas), Gamybos metai: 2025, šlifavimo ilgis: 600 mm, šlifavimo plotis: 300 mm, šlifavimo disko skersmuo: 300 mm, JUNG JF625 / JF630 Iodpedrmlnsfx Ab Nsti mechanically, geometrically, and electrically completely overhauled according to the JUNG new machine protocol with new SIEMENS control system (12" touch operation panel) incorporating our 25 years of experience in overhauling JUNG machines - new control cabinet with magnetic chuck force control and thyristor control for main spindle motor - control system modernization with 12" SIEMENS touch-operation panel, user-friendly cycle programming and clearly-arranged control panel - remote maintenance module available as an option - clear text error display (multi-language) - new control cabinet with magnetic chuck force control and thyristor control for main spindle motor - electromechanical stepper motor infeed with programmable automatic retraction - roughing/finishing infeed - selectable spark-out strokes - dressing compensation - plunge grinding cycles - automatic central lubrication system - All numeric values (infeed) and on/off functions such as hydraulic and coolant can be set via touchscreen - All analog functions, e.g. spindle speed, magnetic holding force, cross feed speed, and grinding functions are directly accessible to the operator via rotary and toggle switches - with 12 months warranty Grinding area: 600 x 250 mm Delivery time: by arrangement

Būklė: geras (naudotas), Gamybos metai: 1979, Funkcionalumas: visiškai funkcionalus, mašinos/transporto priemonės numeris: 1054, šlifavimo ilgis: 400 mm, šlifavimo plotis: 150 mm, Stalo ilgis: 400 mm Stalo plotis: 150 mm Maksimalus pjovimo ilgis: 400 mm Maksimalus šlifavimo plotis: 150 mm Didžiausias ruošinio svoris: 75 kg Atstumas nuo veleno iki stalo: 400 mm Stalo greitis: 1–24 m/min Šlifavimo akmens skersmuo: 25 mm Veleno greitis: 900–4500 aps./min. Itodpor Eq U Ssfx Ab Noi Pagaminimo metai: 1979

Būklė: dilaminuotas dirbtuvėje (naudotas), Gamybos metai: 2025, šlifavimo ilgis: 400 mm, šlifavimo plotis: 200 mm, JUNG JF 415 / JF 420 mechanically, geometrically and electrically overhauled according to the JUNG new-machine protocol fitted with new SIEMENS control system (12" touch OP), incorporating our 25 years of experience in the refurbishment of JUNG machines - New control cabinet with magnetic force regulation and thyristor control for the main spindle motor - Control system modernization with 12" SIEMENS Touch OP cycle control with a very user-friendly control panel - Remote maintenance module optional - Plain-text error display (multilingual) - Electromechanical stepper motor feed with programmable automatic retraction - Roughing/finishing feed - Pre-selectable sparking-out strokes - Dressing compensation - Plunge grinding cycles - Automatic central lubrication - All numerical values (feeds) and on/off functions, such as hydraulics and coolant, can be set via the touch panel - All analog functions such as speed, holding force, crossfeed speed, and grinding functions are directly accessible to the operator via rotary and rocker switches - Supplied with 12 months warranty Grinding range: 400 x 200 mm Delivery time: by agreement Itsdpfx Absc S Agvj Nji We are happy to accept your used JUNG grinding machine as a trade-in

Būklė: naudotas, Gamybos metai: 2001, Šlifavimo ilgis 600 mm Šlifavimo plotis 400 mm Ruoinio aukštis 375 mm Iodpfx Ajy Ehw Iob Njti Skaitmeninis indikatorius 2 ašių HEIDENHAIN Stalo matmenys 650 x 350 mm Maks. stalo apkrova 400 kg Magnetinė plokštė 600 x 350 mm Atstumas nuo šlifavimo veleno centro iki stalo 525 mm Stalas juda išilgai 650 mm Stalas juda skersai 350 mm Stalo padavimo greitis 2 - 28 m/min Šlifavimo disko matmenys 300 x 30 x 76,2 mm Alyvimos galvutė Darbinė įtampa 400 V Bendras galios poreikis 11,0 kW Staklių svoris apie 2,1 t Užimama vieta apie 2,20 x 1,70 x 2,25 m Juostinis filtro įrenginys 1,00 x 0,75 x 0,80 m Elektros spinta 0,90 x 0,40 x 2,25 m - Gamyklos Nr.: 18090201 - Automatinis vertikalus padavimas - Elektrinis rankinis ratas - Skaitmeninis indikatorius 2 ašių HEIDENHAIN - Alyvimos galvutė - Aušinimo įranga - Juostinio filtro įrenginys

Būklė: naudotas, Funkcionalumas: visiškai funkcionalus, tuščias svoris: 3 560 kg, bendras svoris: 18 000 kg, ašių konfigūracija: 2 ašys, pirmoji registracija: 07/2007, kita apžiūra (TÜV): 09/2026, pakaba: oras, padangos dydis: 385/55/22.5, padang padangų: 60 procentas, spalva: pilkas, priekabos stabdys: priekaba su stabdžiais, Gamybos metai: 2007, Įranga: ABS,

Būklė: labai geros būklės (naudotas), I am offering a professional sine magnetic chuck from the renowned German manufacturer K. JUNG GmbH Göppingen. This device is designed for precise clamping of workpieces during grinding, measurement, and toolroom applications. Specifications: • Manufacturer: K. JUNG GmbH Göppingen • Type: Sine magnetic chuck (tilting) • Magnetic workpiece clamping • Tilt angle adjustment with angular scale • High manufacturing precision • Robust cast iron construction • Original wooden transport crate Included: • Magnetic chuck • Original wooden crate • Documentation and setting table • Clamping elements visible in the photos • Operating keys Itedpsza Hl Ejfx Ab Nsi Condition: • Used item • Magnetic surface in very good condition • Normal signs of use and storage • Complete set as shown in the pictures Ideal for: • Tool grinding machines • Surface grinders • Toolrooms • Precision workshops • Production and maintenance departments The item shown in the photos is exactly what is being sold.

Būklė: labai geros būklės (naudotas), Gamybos metai: 1978, Grinding length: 500 mm Grinding width: 200 mm O F F E R We can offer you the following from stock, subject to prior sale and errors: JUNG Universal Horizontal Surface & Profile Grinding Machine Model: HF 50 RD Year of manufacture: 1978 _____ Max. grinding length: 500 mm Max. grinding width: 200 mm Table size: 600 x 200 mm Table speed: 1 – 20 m/min Working height under grinding wheel approx.: 350 mm Grinding wheel dimension: 225 x 25 x 51 mm Infinitely variable grinding wheel speed: 1,000 – 4,000 rpm Vertical feed: 0.001 – 0.01 mm/stroke Grinding spindle drive stepless, GS: 0.5 to 1.5 kW Total drive power approx.: 4 kW - 380 V – 50 Hz Weight approx.: 2,000 kg Accessories / Special features: • Thanks to the infinitely variable spindle speeds, this version is also suitable for grinding high-alloy tool steels. The grinding wheel diameter as well as the peripheral speed are set directly at the conversion cabinet. • Automatic grinding carriage feed for both surface and profile grinding operations, with • automatic feed cutoff via contact dial gauge • Automatic operation cycle – rough grinding, finish grinding, spark out – adjustable for all standard grinding processes with and without automatic feed, with continuous cross feed or with table reversal, plunge grinding and profile grinding without cross feed. • Rapid traverse for grinding head vertical adjustment, short-stroke function, fine cross feed • Digital readout for the Y-axis for precise positioning, especially for profile grinding. • Manual straight dresser mounted above the grinding wheel, separate radius dresser (DIAFORM dressing unit for profile dressing also available) • Built-in sine permanent magnetic chuck, 500 x 200 mm, tiltable • Separate wet grinding unit with coolant tank and belt filter • Approx. 3 flanges with and without grinding wheels, balancing scale, operating manuals Condition: Good to very good! Suitable for all grinding tasks! Please click here for a video of the machine: Itjdpfx Abezbczrj Nji HF50RD/4 Availability: Ex stock, immediate delivery possible, FCA Metzingen Payment: strictly net – after receipt of invoice Always a large selection of grinding machines in stock – please submit your enquiry!

Būklė: naudotas, Gamybos metai: 1969, Grinding length 500 mm Grinding width 200 mm Workpiece height 250 mm Total required power 5.5 kW Machine weight approx. 2500 kg Itsdpfx Abst Hwzio Nsi Space requirements approx. m J U N G Horizontal Precision Surface and Profile Grinding Machine Model HF 50 RD Year of manufacture approx. 1969 Machine No. 4082 _____ Maximum grinding length 500 mm Maximum grinding width 200 mm Table size 600 x 200 mm Table speed 1 – 20 m/min Working height under grinding wheel approx. 350 mm Grinding wheel size 225 x 25 x 51 mm Grinding wheel speed, infinitely variable 1,000 - 4,500 rpm Vertical infeed 0.001 - 0.01 mm/stroke Grinding spindle drive, continuously adjustable 0.5 to 1.5 kW Total drive power approx. 6 kW - 380 V – 50 Hz Weight approx. 2,500 kg Accessories / Special Equipment • This version, due to the infinitely variable speed range, is particularly suitable for grinding high-alloy tool steels. • Automatic infeed of the grinding carriage for surface and profile grinding operations with automatic infeed shut-off via dial indicator, as well as with dial indicator holder and dial indicator for height control. • Machine can be set for standard grinding operations with and without infeed, either with continuous cross movement or with table reversal, or for plunge grinding operations without cross adjustment. • Manual straight dresser mounted above the grinding wheel • Mounted permanent magnetic chuck approx. 400 x 200 mm, tiltable • Separately standing wet grinding unit with coolant tank and belt filter • Separate converter cabinet for infinitely variable speed regulation and display of cutting speed. • Approx. 3 flanges with and without grinding wheels, rapid grinding head traverse, Condition : good – ready for demonstration under power, partially overhauled by specialized company (piston rods, lubrication, infeed, dresser, bellows, etc.) Delivery : ex stock – as inspected Payment : strictly net – upon receipt of invoice

Būklė: naudotas, Three-phase motor, electric motor - Power: 1.5 kW - Speed: 950 rpm - Shaft: Ø 22 x 50 mm - Design: B3 - Dimensions: 385/280/H230 mm - Weight: 36 kg Itodpfsdzzgyjx Ab Noi

Būklė: naudotas, Machine light, machine lamp, workspace light - Lamps are unused - Dimensions: 1020/320/H140 mm - Connection: 230 V DC, 1x39 W Isdsdninpjpfx Ab Noti - Quantity: 3 lamps available - Price: per piece - Weight: 16 kg/piece

Būklė: geras (naudotas), Magnetic plate, magnetic table, sine table, sine plate, back relief grinding device, grinding machine accessories -Version: Cutting tool mold construction for tapered, back-relieved cutting inserts or mold inserts -Angle head for surface grinding machine or measuring machine -Magnetic plate -Angle: adjustable Itodpfeb A Iqdsx Ab Noi -Wooden box -Total weight with box: 35 kg

Būklė: geras (naudotas), Machine spindle, precision spindle, double grinding bench spindle, precision spindle for belt drive, belt drive spindle - Manufacturer: Jung, machine spindle - Type: MP 10z - Speed: max. rpm - Mount: dimensions see photos - Overall dimensions: 545/210/120 mm Itedpfsw Dbzqjx Ab Nsi - Weight: 23.5 kg

Būklė: naudotas, Pump control unit for centrifugal pump, high-pressure pump, water pump, multistage vertical centrifugal pump - Manufacturer: Pentair Jung Pumpen, alarm system with float switch, unused, in original packaging Itedpfxerwqb Sj Ab Nei - Model: Alarm Device AG10 JP44892 - Float Switch: KT JP 46208 - Quantity: 2 alarm devices available - Price: per unit - Carton dimensions: 270/250/H140 mm - Weight: 2.0 kg/unit

Būklė: geras (naudotas), machine spindle, precision spindle, double grinding bench spindle, precision spindle for belt drive, belt-driven spindle -Manufacturer: Jung, machine spindle -Type: MP 5z -Speed: max rpm Itsdpfx Aow Dbyysb Nsi -Mount: dimensions see photos -Overall dimensions: 460/210/115 mm -Weight: 16.2 kg

Būklė: geras (naudotas), Surface grinding machine, grinding machine - Hydraulic horizontal surface grinding machine - Magnetic chuck: 300 x 150 mm - Grinding wheel motor: 1.1 kW, 2800 rpm Itsdpfjd A Idxjx Ab Noi - Water cooling with filter - Grinding wheel diameter: 200 mm - Transport dimensions: 1470/1170/H1920 mm - Weight: 1090 kg

Būklė: geras (naudotas), cylindrical grinding machine, external cylindrical grinding machine, internal cylindrical grinding machine, center grinding machine, center hole grinding machine - max. shaft diameter: 320 mm - max. grinding length: 345 mm - chuck size: Ø 133 mm Itedpsduiw Ajfx Ab Noi - dimensions: 1925/1135/H1755 mm - weight: 1592 kg - function-tested

Būklė: geras (naudotas), Optinis daliklis, precizinis daliklis - maks. centrų aukštis: 76 mm - maks. centrų atstumas: 200 mm - su tvirtinimo žiedais: 3,4,5,6,7,8,9,10,16 mm Itjdpfx Aeb A Iqbob Nei - medinė dėžė - bendras svoris/dėžė: 42 kg - kiekis: 1 vnt.

Būklė: naudotas, Gamybos metai: 1997, Grinding length: 880 mm Grinding width: 510 mm Control: Siemens Max. rotational speed: 4,300 rpm Grinding wheel diameter: 210 - 400 mm Grinding wheel width: 100 mm Total power requirement: 26 kW Machine weight: approx. 7.5 t In our assessment, the machine is in good used condition and can be inspected under power by appointment. Accessories, depicted tools, and clamping devices are only included in the scope of delivery if specified in the additional information. Itjdpswwl N Sjfx Ab Nsi Subject to changes and errors in the technical data and specifications as well as prior sale!

Būklė: beveik kaip naujas (naudotas), Funkcionalumas: visiškai funkcionalus, keliamoji galia: 30 000 kg, kuro tipas: elektrinis, statybinis aukštis: 180 mm, bendras svoris: 800 kg, JUNG JLA 15/30 G – sunkiasvorio transportavimo važiuoklė iki 30 t Profesionali sunkiasvorio transportavimo važiuoklė, skirta mašinų perkėlimui iki 30 t. Nuomojamas profesionalus JUNG sunkiasvorio transportavimo važiuoklių komplektas, skirtas sunkioms mašinoms ir įrenginiams perkelti, įvesti ir išvesti. Isdpfx Ajzi Dhusb Nsti Ši sistema susideda iš elektriniu varikliu varomos sunkiasvorio transportavimo važiuoklės JUNG JLA 15/30 G ir dviejų tvirtų sunkiasvorio važiuoklių JUNG FB 15 G. Elektrinės važiuoklės maksimali apkrova – 15 t. Kartu su dviem tvirtomis sunkiasvorio važiuoklėmis, visa sistema pritaikyta iki 30 t bendros apkrovos. Naudojimo sritys: • Mašinų perkėlimas • Gamybos perkėlimas • Įrenginių ir įrankių mašinų įvedimas ir išvedimas • Presai ir liejimo mašinos • CNC apdirbimo centrai • Transformatoriai ir valdymo spintos • Pramoninės įrangos ir specialiosios mašinos Komplektacija: • 1 elektrinė sunkiasvorio transportavimo važiuoklė JUNG JLA 15/30 G • 2 tvirtos sunkiasvorio važiuoklės JUNG FB 15 G • 2 sulankstomos važiuoklės (darbinis ilgis apie 2400 mm) • 4 hidrauliniai mašinų keltuvai JUNG JH 10 G plius (10 t) • 4 svirties siurbliai • „Tele Radio“ nuotolinio valdymo pultas su nešiojamuoju diržu • 2 atsarginės baterijos nuotolinio valdymo pultui • Kroviklis nuotolinio valdymo pultui • Važiuoklės baterija 48 V / 60 Ah • Baterijos įkroviklis 48 V / 50 A • 12 apkrovos paskirstymo plokštės • 2 vielinio trosų kabliai • Svirtinis strypas Transportavimo duomenys: 1 siunta: medinė dėžė su priedais (1200 × 800 × 1150 mm), apie 380 kg. 2 siunta: padėklas su elektrine važiuokle, įskaitant važiuoklės bateriją (1200 × 1200 × 400 mm), apie 350 kg. Bendras svoris: apie 730 kg. Nuomos sąlygos: • Nuoma skirta tik komerciniams klientams. • Grąžinkite visiškai ir išvalytą. • Trūkstamos arba pažeistos dalys bus apmokestintos pagal jų atstatymo vertę. • Nuomos laikotarpiu nuomotojas atsako už nuostolius ir sugadinimus. • Eksploatuoti gali tik kvalifikuotas personalas. • Gamintojas: JUNG Hebe- und Transporttechnik GmbH • Tipas: JLA-e 15/30 G (be kėlimo) • Pagaminimo metai: 2017 • Elektrinė važiuoklė: 15 t maksimali apkrova • Visa sistema: iki 30 t bendra apkrova • Valdymas: „Tele Radio“ nuotolinio valdymo pultas • Važiuoklės baterija: LiFeMnPO₄, 48 V, 60 Ah, 2,88 kWh • Kroviklis: AXIMA FLEXIS 48 V / 50 A Elektrinė važiuoklė • Matmenys: apie 1215 × 835 mm • Aukštis: 180 mm • Svoris: apie 198 kg (be baterijos) • Važiavimo greitis: 6,5 m/min • 16 poliuretano ratai Ø 140 × 59 mm • Pasukamo disko atrama Ø 215 mm Tv irta važiuoklė JFB 15 G • Talpa: 15 000 kg • Aukštis: 180 mm • Važiuoklės dėžutė: 460 × 205 mm • Atramos plotas: 220 × 120 mm • Reguliavimo diapazonas: 415–1300 mm • Svoris: apie 68 kg

Būklė: naudotas, Jung F 50 plokščioji šlifavimo staklė Būklė: naudota Techniniai duomenys Šlifavimo ilgis: 500 mm Šlifavimo plotis: 200 mm Šlifavimo aukštis iki veleno centro: 285 mm Stalo dydis: 700 x 200 mm Veleno apsisukimų dažnis: apie 3000 aps./min Šlifavimo diskas: 225 x 20 x 51 mm Padosava: rankinė per rankenėlę Greitas kreipimas Išlyginimo įtaisas Itodpsyuy Eusfx Ab Nsi Matmenys I / P / A: apie 1850 mm / 1300 mm / 1750 mm Svoris: apie 1400 kg

Būklė: labai geros būklės (naudotas), rida: 250 km, galia: 382 kW (519,37 AG), pirmoji registracija: 01/2026, kuro tipas: dyzelinas, padangos dydis: 385/65-22,5, ašių konfigūracija: 6x4, ratų bazė: 4 500 mm, kuras: dyzelinas, kuro bako talpa: 590 l, stabdžiai: retarderis, spalva: juodas, vairuotojo kabina: miegamoji kabina, pavaros tipas: automatinis, emisijos klasė: Euro 6, pakaba: plienas-oras, krovimo vietos ilgis: 68 000 mm, Gamybos metai: 2026, Įranga: ABS, AdBlue, Bluetooth, EBS (Elektroninė stabdžių sistema), autonominis šildytuvas, borto kompiuteris, centrinis užraktas, diferencialo užraktas, elektrinis langų reguliavimas, elektriškai reguliuojamas veidrodis, elektroninė stabilumo programa (ESP), kranas, kruizo kontrolė, navigacijos sistema, oro kondicionavimas, priekabos jungtis, priešrūkiniai žibintai, retarderis, suodžių filtras, sėdynės šildytuvas,

Būklė: naudotas, Gamybos metai: 1953, Šlifavimo disko skersmuo x plotis apie 200 x 25 mm Magnetinė tvirtinimo plokštė apie 450 x 170 mm Stalo skersinis judėjimas 200 mm Šlifavimo veleno aps./min – 3000 Šlifavimo disko skylė 51 mm Svoris apie 1300 kg Šlifavimo galvutės reguliavimo tikslumas 0,001 – 0,013 mm Šlifavimo ilgis 600 mm Plokščiojo šlifavimo staklės Itedpfexu Nw Ejx Ab Nei Įskaitant šlifavimo disko nuėmimo įrenginį 1 papildomas šlifavimo disko laikiklis Staklės iki paskutinio laiko buvo naudojamos retkarčiais.

Gamybos metai: 2016, būklė: paruoštas naudoti (naudotas), Parduodama CNC plokščių ir profilių šlifavimo staklė Jung. Šlifavimo matmenys X/Y: 300 mm/600 mm, stalo matmenys X/Y: 300 mm/1000 mm, atstumas nuo veleno centro iki stalo: 150 mm–600 mm, didžiausia stalo apkrova: 400 kg, stalo aukštis: 925 mm, eigos X/Y/Z: 600 mm/450 mm/345 mm, pastūma X: 40 m/min, pastūma Y/Z: 4 m/min, šlifavimo veleno apsisukimai: 5000 aps./min., didž. šlifavimo rato matmenys X/Y/Z: 400 mm/60 mm/127 mm. Staklių matmenys X/Y: apie 3300 mm/2300 mm, svoris: apie 4500 kg, valdymas: Siemens 840D sl. Komplekte priedai. Yra dokumentacija. Galima apžiūra vietoje. Isdpfezg Iqnox Ab Neti

Būklė: naudotas, Gamybos metai: 1961, Technical Details: Grinding length: 600 mm Grinding width: 200 mm Workpiece height: 270 mm Grinding length with magnet: 500 mm Distance spindle center to clamping surface, min.: 350 mm Grinding spindle speed: 1,000...4,700 rpm Table clamping surface: 720 x 200 mm Table load capacity: 60 kp Magnetic chuck size: 455 x 180 mm (DC) Magnetic table: vertical tilt 90° longitudinal Total power requirement: 2.0 (2.7 HP) kW Machine weight approx.: 1,600 + 176 kg rectifier Machine dimensions approx. (LxWxH): 1.4 x 1.8 x 1.7 m Machine transport dimensions: 1.4 x 1.8 x 1.6 m Control cabinet dimensions: L: 850 x W: 450 x H: 1,100 mm Grinding wheel dimensions: Ø 225 x 20 x bore Ø 51 mm The magnetic plate (24V) is cooled. Isdpfx Abeu Ngg Uo Njti Grinding spindle: The grinding wheel infeed is electric, vertical 270 mm, Z-axis feed 0.002 mm to unlimited Incremental feed 0.001 - 0.010 mm Maximum permissible circumferential speed: 35 m/sec. Equipped with coolant tank, pump and magnetic separator, as well as grinding wheel - size Ø 152 x 14 mm Plus various accessories (in cabinet) such as several grinding wheels and balancing flange The machine is pre-equipped for an extraction unit. *