Stemac Širokopasovni Brusilnik S Pritisno Nogo nakup rabljenega (82.478)

Stanje: delavnici obnovljeno (rabljeno), Leto izdelave: 1987, Funkcionalnost: popolnoma funkcionalen, številka stroja/vozila: 9673240, širina brušenja: 1.100 mm, moč: 15 kW (20,39 KM), vrsta nastavitve višine: električni, dolžina brusnega traku: 1.900 mm, priključek za stisnjen zrak: 6 letvica, širina brusilnega traku: 1.120 mm, Combined sanding unit with contact roller and air sanding shoe Brush roller Pneumatic sanding belt tensioning, motorized thickness adjustment Technical data: - Max. working width: 1100 mm - Max. workpiece thickness: 150 mm - Min. workpiece thickness: 3 mm - Sanding belt dimensions: 1900 x 1120 mm - Feed speed: 5/10 m/min - Main sanding aggregate motor power: 15 kW - Height adjustment motor power: 0.50 kW - Feed belt motor power: 0.5/1.0 kW - Operating pressure: 6 bar - Air consumption: approx. 20 l/min - Extraction connection: 2 x 200 mm - Weight: approx. 2100 kg - Machine width: approx. 1750 mm - Machine depth: approx. 1700 mm - Machine height: approx. 1900 mm Redpstppzvofx Apbsu

Stanje: zelo dobro (rabljeno), Leto izdelave: 1997, Širokopasovni brusilni stroj HEESEMANN LSM 8, letnik 1997 Rodpfx Apjxurxfsbou

Stanje: zelo dobro (rabljeno), Width 110 cm 13 kW Redpfjrf S Rkjx Apbsu You can call or write to us. We can speak and write in German and Russian. You may also send messages in English. 32.4.10.

Leto izdelave: 1993, stanje: zelo dobro (rabljeno), Working width: 1100 mm Working height: 4–160 mm Belt dimensions: 2620 x 1130 mm Feed speed: 3.4–21.4 m/min First unit motor: 11 kW Second unit motor: 15 kW Three-phase power supply: 400V Rsdpoi A Afvefx Apbju Weight approx.: 3100 kg

Stanje: novo, Leto izdelave: 2024, New machine Year of manufacture: 2024 MACHINESEEKER ENQUIRIES: Please understand that we do not offer this new machine outside our sales territory in Germany (Rhine-Main area and North Rhine-Westphalia). Such enquiries will not be answered. Features and technical specifications: - Robust, space-saving 2-belt wide-belt sander for demanding calibration and fine sanding applications - Consistent working height thanks to top-section adjustment - Working width: 1350 mm - Top sanding, with two sanding units - 1st unit equipped with grooved rubber contact roller of proven hardness - Pneumatically (program-controlled) adjustable contact roller, roller height steplessly adjustable via abrasive grit scale - 2nd unit with electronically-controlled segmented sanding pad, segment width 35 mm, featuring quick-change glide strips - Parallel spring-mounted, ground steel pressure roller at infeed - Rubber-coated pressure rollers between sanding units and at outfeed - 15 kW (20 HP) motor, 400 V/50 Hz with soft start for reduced start-up current - Motorized, finely adjustable height setting with digital display - Belt tensioning, tracking and oscillation via pneumatics, compressed air consumption approx. 4 l/min - Optimum safety via automatic instant stop with disc brake in case of belt breakage - Workpiece feed motor 0.75 kW (1.0 HP) with fabric-reinforced rubber feed belt - Complete electrical system with contactor control; automatic star-delta start for main motor, motor protection and ammeter for monitoring stock removal - Pass-through height: 200 mm - Abrasive belt size: 1350 x 2000 mm Comfort features: - Automatic thickness adjustment over the entire working width - Workpiece over-thickness protection with immediate feed stop and automatic elevation of the machine top section - Infinitely adjustable stock removal - Electronic feed regulation via operator panel, continuously variable 3 – 15 m/min - PLC control/programming with color touch screen and TEACH-IN memory (recorded at the push of a button, according to sanding result; no manual input required) - Pneumatic belt tracking control - Workpiece support with rollers at infeed and outfeed - Enormatic: fully automated fast setting and feed solution - eco*-energy-saving mode - Fault diagnostics - Job and operating hours counters Machine in E-Plus version (RE) Rodpsuhiq Defx Apbou Including foldable outfeed table extension 1350 mm, without infeed plate Location: Solingen Availability: short notice

Stanje: pripravljen za uporabo (rabljen), Leto izdelave: 2007, Funkcionalnost: popolnoma funkcionalen, številka stroja/vozila: 2007.10.191, širina brušenja: 1.350 mm, dolžina brusnega traku: 4.800 mm, višina obdelovanca (maks.): 150 mm, širina brusilnega traku: 1.400 mm, Automatic Sander + Dedusting Machine TECHNICAL DETAILS Sanding width: 1,350 mm Working height: 880 mm Workpiece thickness: 3 – 150 mm Conveyor bed: continuous conveyor belt Conveyor bed drive: 4.0 kW / inverter 7.5 kW Feed speed: 3 – 15 m/min Workpiece vacuum clamping system drive: 7.5 kW Units: 3 x cross sanding, 1 x longitudinal sanding, 1 x brushing unit Cross and Longitudinal Sanding Units Cross sanding unit – sanding belt dimensions: 4,800 x 150 mm Sanding belt speed: 2–20 m/s Drive power per cross sanding unit: 15 kW Pressure lamella belt dimensions cross sanding: 4,350 x 140 mm Longitudinal sanding unit – sanding belt dimensions: 2,620 x 1,400 mm Sanding belt speed longitudinal: 1.8 – 16 m/s Drive power longitudinal: 15 kW Pressure lamella belt dimensions longitudinal sanding: 1,900 x 1,380 mm Brushing Unit Brush roller diameter: 120 mm Drive power: 0.75 kW Air Requirements Air requirement cross sanding units: 91.5 m³/min Air requirement longitudinal sanding unit: 30.5 m³/min Air requirement brushing system: 18.0 m³/min Air requirement conveyor belt cleaning: 13.5 m³/min Air output workpiece vacuum clamping system: 40.0 m³/min Total air requirement: 193.5 m³/min Rsdpjyg Exqefx Apbju Overall compressed air consumption: 115 m³/h MACHINE DETAILS Total power connection: approx. 80 kW Operating voltage: 400 V Frequency: 50 Hz Main machine dimensions Dimensions (L x W x H): 2,900 x 2,300 x 2,200 mm Weight: approx. 7,000 kg Dedusting Machine EA 8 – Machine No.: 2007.10.192 Sanding width: 1,350 mm Working height: 880 – 920 mm Workpiece thickness: 3–150 mm Required air velocity: 20 m/s Air requirement: 30.5 m³/min Conveyor bed drive: 1.1 kW / inverter 2.2 kW / 0.75 kW Feed speed: 3–15 m/min Fan drive: 5.5 kW Height adjustment drive: 0.18 kW Power connection: 7.0 kW Dimensions (L x W x H): 1,100 x 2,200 x 2,200 mm Weight: 1,900 kg EQUIPMENT - Operator terminal - Dedusting machine EA 8 - Workpiece vacuum clamping system - Multiple cross and longitudinal sanding units - Brushing unit

Stanje: zelo dobro (rabljeno), Leto izdelave: 2021, obratovalne ure: 3 h, Funkcionalnost: popolnoma funkcionalen, The machine is hardly used, like new, year of manufacture 2021. Table dimensions: 220x80 cm. Rodpfx Ajudy D Tjpbeu

Stanje: skoraj kot novo (rabljeno), Leto izdelave: 2022, Funkcionalnost: popolnoma funkcionalen, HOMAG Sandteq w-300 Rodpjxczmzsfx Apbju Tehnični podatki: - Hitrost pomika traku: 2,5 - 13 m/min - Delovna višina: 900 mm - Delovna širina: 1350 mm - Število obdelovalnih enot: 2 - Debelina obdelovanca: 3 - 160 mm z avtomatskim merjenjem - Dimenzije stroja D x Š x V: pribl. 2115 x 2100 x 2415 mm - Teža stroja: pribl. 4000 kg - Skupna električna moč: pribl. 39 kW - Priporočena predhodna zaščita: 80 A - Vakuumska miza - Q = prečna brusilna enota s Poly V-jermenom / 13,5 kW (2-16 m/s) - X = kombinirana enota s kontaktno valjčko in sistemom pritisnega nosilca / 18,5 kW (2-18 m/s) - Super-finish funkcija: kalibriranje, vmesno brušenje furnirja & laka, fino brušenje furnirja & laka - Krtačna enota - Čistilni rotor z ionizacijo - Powercontrol s Powertouch Stroj je takoj na voljo. Nakladanje na tovornjak je možno.

Stanje: zelo dobro (rabljeno), Leto izdelave: 1996, Wide Belt Sander OTT ALPHA 110 - Machine in stock - After technical inspection - Very good condition - Made in Germany - Year of manufacture: 1996 - Segmented shoe – ideal solution for lacquer / veneer work TECHNICAL SPECIFICATIONS: - Working width: 1100 mm - Working height: 1–150 mm - Combi unit with membrane shoe, task-controlled - Main unit motor power: 11 kW - Belt air jet cleaning - Pneumatic belt oscillation - Two belt speeds: 4.5 and 18 m/s - Unit with felt drum - Drum motor power: 0.75 kW - Drum oscillation - Cleaning brush unit - Brush motor power: 0.75 kW - Feed speed steplessly adjustable - Feed speed range: 4–18 m/min - Feed motor power: 1.5 kW - Electric height adjustment - Vacuum table - Fan motor power: 3 kW - Extraction port diameters: 4 x 120 mm, 1 x 150 mm Transport dimensions: Rjdpfx Aogi Dryepbju - Length: 200 cm - Width: 245 cm - Height: 210 cm - Weight: 2,500 kg 1. The Alpha Combi unit is a sanding module with a 150 mm diameter contact roller (hardness 90 Shore) integrated with a sectional pneumatic shoe with section width 27 mm. 2. EMS 27 optical system – detects minimal surface irregularities and adjusts the pressure of individual shoe sections at specific locations on the workpiece. 3. Control of adjacent shoe sections is possible within a range of -2 to +4.

Stanje: zelo dobro (rabljeno), Leto izdelave: 1994, Wide Belt Sander Manufacturer: Bütfering Model: AWS 2 KC 1100 Year of manufacture: 1994 Working width: 1,100 mm Max. workpiece height: 150 mm Number of sanding units: 2 Sanding drum motor power: 15 kW Sanding pad motor power: 11 kW Feed motor power: 1.5 kW Rjdpfsvuza Nox Apbsu Feed speed: 3 - 15 m/min, infinitely variable Weight: approx. 3,300 kg Dimensions: 1,750 x 2,210 x 2,280 mm

Stanje: dober (rabljeno), Leto izdelave: 1995, Večnamenski površinski brusilni avtomat, brusilka za lak, modularni agregatni sistem, končni agregat, brusilni agregat, brusilna postaja, tračna brusilka, tračni brusilnik - maks. širina brusilnega traku: 1350 mm - Brusilni trak: oscilirajoč - Pogon: 11 kW - Število vrtljajev: frekvenčno regulirano - Dimenzije brusilnega traku: 2620 x 1350 mm Redpfx Apsgnnbvsbsu - maks. sprejemna višina obdelovanca: 140 mm - Brusilni agregat: nastavljiv po višini (transportni trak fiksna višina) - Dimenzije stroja: 2210/2320/H2310 mm - Teža stroja: 4500 kg

Stanje: pripravljen za uporabo (rabljen), Leto izdelave: 1995, Funkcionalnost: popolnoma funkcionalen, delovna širina: 1.300 mm, skupna masa: 4.000 kg, delovna višina: 1.000 mm, vrsta nastavitve višine: električni, transportna višina: 1.000 mm, Kalibrirni stroj / Širokopasovni brusilni stroj Proizvajalec: Costa Tip: 71 CCT 1350 Delovna širina: 1300 mm Opremljen z: Rsdpfx Aexl N Thopbju 1x kalibrirni valj (trda guma pribl. 80 Shore), 22 kW, mere brusnega traku 1380 x 2620 mm 1x kalibrirni valj – na novo gumiran (trda guma 60 Shore), 18,5 kW, mere brusnega traku 1380 x 2620 mm 1x brusilni čevelj, 15 kW 1x čistilna krtača 1x izpihovalna enota Regulacija podajalne hitrosti, 4 - 24 m/min. Transportni trak z vakuumom Vakumski ventilator z dušilcem zvoka Delovna višina: 1000 mm Nastavitev višine zgornjega dela stroja (enostavna integracija v obstoječo strojno linijo) Priključek: 380 V 50 Hz, 200 A Skupna priključna moč pribl. 65 kW Dimenzije pribl. 3000 x 2500 x 2400 mm (DxŠxV) Teža pribl. 4000 kg

Stanje: novo, Leto izdelave: 2025, Funkcionalnost: popolnoma funkcionalen, širina brušenja: 1.350 mm, The HSM is the perfectly tailored wide belt sanding machine designed to meet the needs of small and medium-sized craft and industrial businesses. Whether you require effect sanding, cross sanding, lacquer or high-gloss finishing, whether processing panels, solid wood, or veneered workpieces – the Heesemann HSM is the ideal sanding machine for professional woodworking! This wide belt sander is especially interesting for joiners and interior fitters. The HSM is available in predefined standard configurations, equipped with two, three, or four sanding units, and can be fitted with a cross belt for cross sanding applications. Rsdpfx Apew Db Drsbju Units and features can be selected individually. We would be pleased to provide you with a tailor-made quotation.

Stanje: novo, Leto izdelave: 2025, Funkcionalnost: popolnoma funkcionalen, širina brušenja: 1.350 mm, The HSM Compact is the universal surface sanding machine for craft businesses. It is designed for calibration, intermediate sanding of veneers and lacquer, structuring, as well as cleaning of panels, solid wood, or veneered workpieces. Thanks to its compact dimensions, it is optimally suited for a wide range of requirements. With the HSM Compact, you receive a multifunctional sanding center on just 4.5 m² of floor space, ideal for achieving diverse surface qualities. It is Heesemann’s smallest machine, equipped as standard with the patented CSD magnetic pressure beam, allowing you to move away from manual sanding to automation. HSM .2 Compact ROLLER/LONGITUDINAL DLB - Year of manufacture: 2025 - Sanding width: 1,350 mm - Vacuum clamping system with vacuum extraction table and demand-driven suction Rsdpfx Apsw Dbx Njbou - Constant working height (880 mm) - Workpiece thicknesses: 3-200 mm - Automatic workpiece thickness measurement at infeed - Non-driven rollers at machine infeed and outfeed - Electromagnetic pressure beam (CSD) - 15.6″ touch display - LED lighting on the belt support side - Fold-out table with wooden surface at outfeed - Structuring brush unit (Ø 200 mm) incl. 5.5 kW drive via frequency converter and quick-change system, fitted with Anderlon bristles - Cleaning brush unit, horsehair (Ø 120 mm)

Stanje: dober (rabljeno), Leto izdelave: 2001, • Grinding width (mm): 1100 Rsdpfx Aeww Iatepbsu • Workpiece thickness (mm): 3 - 150 • Total grinding units: 1 • Longitudinal belt: 1 • Calibration roller • Cleaning brush: 1 x diameter = 120 mm • Vacuum table • Intermediate lacquer sanding • Constant table height • Carpet cleaning • Longitudinal unit, motor: 15 kW, 1.8 - 18 m/s • Feed rate: 3 - 11 m/min • Abrasive belt length, longitudinal unit (mm): 1,900 x 1,120 • Pressure beam: CSD system, electromagnetic, wear-free • Availability: tested, in stock

Stanje: dober (rabljeno), Leto izdelave: 2000, • Sanding width (mm): 1350 • Workpiece thickness (mm): 3 - 150 • Total sanding units: 2 • Longitudinal belts: 2 • Contact roller diameter = 200 mm: 1 / 15 kW • Combination unit: with small roller • Cleaning brush: 1 x diameter = 120 mm • Vacuum table • Intermediate lacquer sanding • Constant table height Rsdewwlm Dopfx Apbou • Carpet cleaning • Longitudinal unit, motor: 15 kW, 1.8 - 18 m/s • Feed rate: 3 - 12 m/min • Sanding belt length, longitudinal unit (mm): 2,100 x 1,400 • Pressure beam: CSD system, electromagnetic, wear-free • Conveyor belt: new • Availability: inspected, in stock

Stanje: rabljeno, Leto izdelave: 2009, Funkcionalnost: popolnoma funkcionalen, delovna širina: 950 mm, širina brušenja: 950 mm, - avstrijska proizvodnja - letnik izdelave 2009 - kombinirana čevelj TEHNIČNI PARAMETRI: - širina brušenja: 950 mm - višina brušenja: 4-170 mm - moč motorja: 11 kW - 1. agregat: gumijasti valj s pnevmatskim pristiskom - premer valja: 110 mm - 2. agregat: kombinirani čevelj - čistilna ščetka: 1,1 kW - pnevmatski pritisk gumijastega valja - čevelj s pnevmatskim pritiskom - pnevmatska oscilacija - pihanje na trak Redpfxjxlr U Io Apbeu - električna nastavitev višine - hitrost brusnih trakov nastavljiva na inverterju - elektronsko pozicioniranje višine brušenja - dve hitrosti podajanja: moč motorja podajalnika 0,55 kW - minimalna dolžina materiala: 400 mm - premer priključka: 3 x 130 mm in 2 x 80 mm - dimenzije stroja (d/š/v): 170 x 150 x 210 cm - teža: ~ 800 kg

Stanje: rabljeno, Funkcionalnost: popolnoma funkcionalen, širina brušenja: 630 mm, višina brušenja: 150 mm, vrsta nastavitve višine: električni, - italijanska izdelava - rabljeni brusilni stroj, v zelo dobrem stanju TEHNIČNI PARAMETRI: - maks. širina obdelovanca: 630mm - maks. višina obdelovanca: 150mm 1 agregat: - gumirani valj z utori za kalibracijo + čevelj + 1 kovinski valj *z vrha: - gumirani vstopni drsni valj - agregat - gumirani izhodni drsni valj *z dna: - gumirani drsni valj - vlečni trak - pnevmatska oscilacija traku s fotocelicami - 2 hitrosti podajanja: 0,28kW - motor: 6kW - električna zavora - električno dviganje mize - delovni tlak: 6-8 bar - premer odsesovalnega priključka: 150mm - skupne mere D/Š/V: 1070x1320x1900mm Redpfx Apow Ip Ekobsu - teža: 722kg

Stanje: novo, Leto izdelave: 2024, New machine Year of manufacture: 2024 2-Belt Wide Belt Sander - Usable working width: 1100 mm Redpfx Asxz Ialjpbsu - Sanding belt dimensions: 1120 x 2150 mm - Max. workpiece thickness: 160 mm - Steel calibration roller type 018: 150 mm - Sanding pad width: 50 mm - Motor power: 14.7 kW - Belt speed: 18/16 m/s - Feed motor power: 0.55 kW - Variable speed feed carpet drive with stepless adjustment: 4/20 m/min - Motorized height adjustment: 0.24 kW - Mechanical belt oscillation "ECO GEAR PATENT SYSTEM" - 1 pc. drum brake for belt deceleration - Pivoting roller for belt tensioning - 3 pcs. pressure rollers with rubber coating - Emergency stop bar at machine infeed - Electronic workpiece thickness display - 2 extraction ports, Ø 160 mm - Automatic table positioning Additional options: - Electronically segmented sanding pad with 20 segments - Increased belt motor power: 14.7 kW instead of 11 kW - Frequency-controlled feed speed - Electronic control of machine functions via 7" touchscreen BASE MACHINE ACCORDING TO CE STANDARDS, Art. 029 PLEASE NOTE: New patented belt oscillation system 1. No valves 2. No photoelectric sensors 3. Not sensitive to dust 4. Energy-saving and environmentally friendly system Availability: short-term Location: Holm

Leto izdelave: 1988, stanje: zelo dobro (rabljeno), Working width: 1080 mm Electric lifting Digital display of working height 1 unit Rodpfxjih H Nhe Apbsu Combination unit Adjustable feed speed Motor power: 11 kW Sanding belt dimensions: 2100 x 1150 mm Weight: 1400 kg

Leto izdelave: 2021, stanje: novo, številka stroja/vozila: GWH432125, Working width 1,100 mm, Abrasive belt dimensions 1,120 x 2,150 mm, maximum working thickness 160 mm, combined sanding unit with calibration roller D = 150 mm, pneumatic segmented sanding pad with programmable control, motor 15 kW (20 HP), sanding belt speed 18 m per second, infinitely variable feed conveyor 4 - 20 m/min, feed motor 0.55 kW (0.75 HP), electric table positioning with 0.24 kW motor and digital LCD height display, mechanical "ECO GEAR SYSTEM" (belt oscillation), automatic conveyor centering, automatic emergency table lowering, check control panel, automatic sanding drum exclusion via control panel, grit compensation in 6 steps, 2 rollers each at infeed and outfeed, dust extraction connection D = 160 mm, machine complies with CE regulations dimensions approx. L x W x H: 1,650 x 1,800 x 2,025 mm weight approx. 1,300 kg, Rjdpfehgmmasx Apbsu (equivalent model to Unitek LC 1120 1N KRT) immediately available from stock in Seevetal, subject to prior sale, exclusive of transport, installation, and commissioning.

Stanje: dober (rabljeno), Leto izdelave: 2008, Funkcionalnost: popolnoma funkcionalen, HESSEMANN 3-HEAD SANDER: Abrasive belt dimensions: 2,620 x 1,400 mm 1 Longitudinal sanding unit (with contact roller for calibration work (steel)), Diameter: 250 mm Belt speeds: approx. 18 m/s, 22 kW Anti-wear brake unit, automatic length adjustment Dust extraction device controlled according to the workpiece; reverse-running abrasive belt; abrasive grain compensation via computer. Belt speeds: 1.0 - 18 m/s Drive: 15 kW 1 Longitudinal sanding unit Belt speeds: 1.0 - 18 m/s Drive: 15 kW Incl. stepless sanding speed adjustment via electronic frequency controller, with double quantity of suction holes for the dust extraction device. Anti-wear brake unit, automatic adjustment for varying abrasive belt edge lengths, dust extraction device controlled depending on the workpiece, switchable, reverse-running abrasive belt. Rjdpfx Apex Rdn Tobeu 2 Pressure beams with selective pressure regulation system – CSD® system Continuously adjustable pressure of individual pressure elements, for both single and multiple feed. Distance: 32 mm. Part tolerance compensation up to 2 mm by maintenance-free pressure magnets. Working width as well as start and end of sanding on the pressure beam are electronically controlled. The pressure elements are actuated by electro-lifting magnets, allowing the sanding shoe pressure to be infinitely variable as the workpiece passes through the machine. This innovative CSD® technology ensures always consistently proportional pressure depending on the shoe’s overlap on the workpiece. The risk of edge-through (“burn through”) is almost eliminated thanks to this continuous dynamic pressure control.

Leto izdelave: 1996, stanje: pripravljen za uporabo (rabljen), Maximum grinding width 1000 mm Single unit 15 kW motor Rjdpfoihaz Usx Apbeu Electric table lifting

Stanje: zelo dobro (rabljeno), Leto izdelave: 2006, Technische Daten: - Arbeitsbreite: 1350 mm - Pneumatische Oszillation - Vakuumtisch - Stand-alone Maschine (Tischhub/-senkung) 1. Kombi-Aggregat: - Motorleistung: 18,5 kW - Stahlkalibrierwalze Redpfx Apjvdtxijbsu - Stufenlose Bandgeschwindigkeitsregelung - Segmentiertes Schleifpad (52 Segmente à 26 mm) 2. Kombi-Aggregat: - Segmentiertes Schleifpad (52 Segmente à 26 mm) - Motorleistung: 7,5 kW - Stufenlose Bandgeschwindigkeitsregelung - Bürste am Materialauslauf - Stufenlose Vorschubregulierung - Pneumatische Bandreinigung

Stanje: pripravljen za uporabo (rabljen), Leto izdelave: 2000, Funkcionalnost: popolnoma funkcionalen, številka stroja/vozila: AE/020112, skupna širina: 1.300 mm, skupna masa: 2.750 kg, število valjev: 4, Brez minimalne cene – prodaja zagotovljena največjemu ponudniku! PODROBNOSTI STROJA Skupna širina: 1.300 mm Električni podatki Nazivna napetost: 400 V Frekvenca: 50 Hz Faze: 3 ~ Nazivni tok: 180 A Kratkostični tok: 10 kA Maks. obremenitveni tok: 420 A Rjdpfx Apsxmhiwsbju Teža: 2.750 kg OPREMA Dva zgornja valja Dva spodnja valja Opomba: Stroj je bil demontiran v okviru likvidacije in je naložen na tovornjak. Ob razstavljanju je bil popolnoma delujoč.