Used Weinig Unicontrol 12 for sale (556)

Condition: good (used), Year of construction: 2010, Weinig Conturex C126 CNC Window production machine Description; Year of construction: 2010 Bdodpfsx Tq I Eox Airoi Working width 40-260mm Working heigth 25-150mm Powergrip clamping table Table loading length single table 4 x 2280mm Workpiece length single table cycle 220-2700mm Table loading length double table (combined) 2 x 4630mm Workpiece length double table cycle without follow up 220-5000mm Workpiece length double table cycle with follow up 5000-6000mm Fully new PC & Software 2025 Full description on request Available approx. summer 2026 (Despite our great care all changes, mistakes in technical data, prices and all information is subject to (typing) errors. No guarantee on printed data! Availability subject to prior sales). (Alle Änderungen und Irrtümer in den technischen Daten, Angaben und Preisen vorbehalten! Keine Garantie auf gedruckte Daten!. Verfügbarkeit vorbehaltlich Zwischenverkauf). Prices excl. advertisement cost MachineSeeker / Preise exkl. Inserierungskosten MaschinenSucher Best woodworkingmachines from the Netherlands Holland Die besten holzbearbeitungsmaschinen aus die Niederlande De beste gebruikte machines uit Nederland

Condition: used, The machine is for sale together with all tools as shown in the pictures. Bsdpfx Aioy Rumtsredi

Condition: used, Tenoning spindle 2 Stk. Number of milling agregates 5 St. Spindle diameter 50 mm Control Weinig, PC-Nexus Weinig Unicontrol 10 NC Window System — Optional: Extensive Tooling Set ----- Optionally available (at an additional cost): IV 68 Wood, Wood/Aluminum Bdjdpfx Aiszawizoroi IV 78 Wood, Wood/Aluminum IV 68 Entrance Doors Manufacturer's Technical Description: ----- Item 1: Weinig Unicontrol 10 NC Window System ----- Cross-cut Saw ----- with laser alignment light; motor power: 3 kW; spindle diameter: 40 mm; spindle speed: electronically variable (with brake) from 3,000 to 6,000 rpm. Max. tool cutting circle: 400 mm Axial adjustment: 150 mm via NC axis Radial adjustment: pneumatic, to 8 positions for top edge rounding Horizontal bottom rounding unit ----- Axial adjustment travel: mechanically coupled with cut-off saw 1st Tenoning and Slotting Spindle ----- Motor power (with brake): 15 kW Spindle diameter: 50 mm Spindle speed: 2,925 rpm Max. tool cutting circle: 400 mm Tool clamping length: 640 mm Axial adjustment travel: NC axis Home position (below table): 5–10 mm Radial adjustment travel: fixed 2nd Tenoning and Slotting Spindle ----- Motor power (with brake): 11 kW Spindle diameter: 50 mm Spindle speed: 2,925 rpm Max. tool cutting circle: 400 mm Tool clamping length: 320 mm Axial adjustment travel: NC axis Radial adjustment travel: NC axis Home position (below table): 5–10 mm 1st Profiling Spindle (Climb and Conventional Milling) ----- Motor power (with brake): 11 kW Spindle diameter: 50 mm Spindle speed: 6,000 rpm Tool cutting circle: 140 mm Max. tool diameter: 232 mm Tool clamping length: 400 mm (with outboard bearing) Axial adjustment travel: 350 mm (NC axis) Radial adjustment travel: NC axis Home position (below table): 5–10 mm 2nd Profiling Spindle ----- Motor power: 11 kW Spindle diameter: 50 mm Spindle speed: 6,000 rpm Tool cutting circle: 140 mm Max. tool diameter: 232 mm Tool clamping length: 400 mm (with outboard bearing) Axial adjustment travel: 350 mm (NC axis) Radial adjustment travel: NC axis Home position (below table): 5–10 mm Horizontal Profiling Unit (Top) ----- Motor power (with brake): 3.0 kW Spindle diameter: 40 mm Clamping length: 40 mm Spindle speed: 5,850 rpm Max. tool cutting circle: 130 mm Pneumatic adjustment: 8 positions (axial and radial) 3rd Profiling Spindle ----- Motor power: 11 kW Spindle diameter: 50 mm Spindle speed: 6,000 rpm Tool cutting circle: 140 mm Max. tool diameter: 232 mm Tool clamping length: 400 mm (with outboard bearing) Axial adjustment travel: 350 mm (NC axis) Radial adjustment travel: NC axis Home position (below table): 5–10 mm Vertical Profiling Unit (Right, at Machine End) ----- Motor power (with brake): 3.0 kW Spindle diameter: 40 mm Clamping length: 160 ...

Condition: excellent (used), CATALOGUE NUMBER 7890 Technical specifications: - track width 245mm - shaft width for the edger 380mm - shaft width for the multi-blade saw 320mm - max. blade diameter 350mm Bdsdpfxo Af Ivuo Airsi - blade arbor diameter for the edger 80mm - blade arbor diameter for the multi-blade saw 65mm - max. cutting height 120mm - table width with clearance 900mm - table length 1780mm – from above: - feed rollers/ejectors - smooth pressure shaft - feed rollers - smooth pressure shaft - insert for short pieces - shaft with saws - 2 smooth pressure shafts – from below: - guide - feed rollers/ejectors - track - central lubrication - laser - stepless feed speed adjustment - feed motor 1.1kW - main motor 30kW - manual lifting of the machine body - manual lifting of the saw shaft - dust extraction nozzle diameter 210mm - overall dimensions L/W/H 1900x1500x1800mm - weight approx. 2000kg ADVANTAGES - German production - stepless feed speed adjustment - floating blade shaft for edging - multi-blade saw sleeve included - laser - insert for short pieces - multi-blade saw, used, very good condition Net price: 55900 PLN Net price: 13000 EUR, depending on the exchange rate of 4.30 EUR (Prices may change due to significant fluctuations)

Condition: ready for operation (used), Year of construction: 1997, travel distance X-axis: 3,000 mm, travel distance Y-axis: 100 mm, travel distance Z-axis: 142 mm, controller manufacturer: SIEMENS, controller model: WS 400-20, CNC processing center manufactured in 1997. This WEINIG / DIMTER Unicontrol 10 features a maximum workpiece length of 3,600 mm and a maximum workpiece height of 100 mm. It includes a powerful cross-cut saw with a spindle speed of up to 3,000 rpm and a tenoning spindle motor power of 15 kW. If you are looking to get high-quality CNC processing capabilities, consider the WEINIG / DIMTER Unicontrol 10 machine we have for sale. Contact us for further details. • Max. workpiece height: 100 mm • Min. workpiece height: 40 mm • Min. workpiece width: 40 mm • Max. workpiece width: 140 mm • Max. workpiece length with CNC stop: 3,500–3,600 mm • X-axis stroke: 3,000–3,500 mm (version dependent) • Cross-cut saw motor power: 3.7 kW • Cross-cut saw spindle speed: 2,800–3,000 rpm • Cross-cut saw max. tool diameter: 400 mm • Cross-cut saw spindle diameter: 40 mm • Tenoning/slotting spindle quantity: 2 pcs • Tenoning spindle diameter: 50 mm • Tenoning spindle clamping length: 400–640 mm • Tenoning spindle max. tool diameter: 400 mm • Tenoning spindle motor power 1: 11 kW • Tenoning spindle motor power 2: 15 kW • Tenoning spindle speed: 2,900–3,250 rpm • Profiling spindle quantity (vertical): 2–3 pcs • Profiling spindle diameter: 50 mm • Profiling spindle clamping length: 320–400 mm Bsdjzug Nrjpfx Airedi • Profiling spindle max. tool diameter (flight circle): 232 mm • Profiling spindle motor power: 11 kW (each) • Profiling spindle speed: 6,000 rpm • Horizontal profiling unit (top) motor power: 3 kW • Horizontal profiling unit spindle diameter: 40 mm • Horizontal profiling unit max. tool diameter: 130 mm • Horizontal profiling unit speed: 5,850 rpm

Condition: excellent (used), Year of construction: 2006, functionality: fully functional, working width: 230 mm, planing height: 120 mm, spindle diameter: 40 mm, total width: 1,400 mm, total height: 1,600 mm, total length: 3,700 mm, overall weight: 1,500 kg, spindle speed (max.): 6,000 rpm, type of input current: three-phase, input voltage: 400 V, table length: 2,000 mm, number of spindles: 5, input frequency: 50 Hz, input current: 67 A, For sale: A highly reliable, premium-quality Weinig Unimat 300 four-sided planing and moulding machine in excellent, low-use condition. Manufactured in 2008, this unit represents one of the final production years of this legendary compact series. Perfect for small to medium-sized woodworking shops that demand top-tier precision and rapid setups. Technical Specifications: • Year of Manufacture: 2008 (Low operating hours, well-maintained) • Number of Spindles: 5 • Spindle Arrangement: Bottom – Right – Left – Top – Bottom • Spindle Speed: 6,000 RPM • Spindle Diameter: 40 mm • Feed Speed: 2-stage manual configuration (6 and 12 m/min) • Working Width: 20 mm up to 230 mm • Working Height: 8 mm up to 120 mm • Infeed Table Length: 2,000 mm • Drive System: Heavy-duty Cardan (universal joint) feed drive system for smooth and powerful workpiece traction • Table Features: Hard-chrome plated tables to prevent resin buildup and minimize wear • Enclosure: Full safety and sound-insulation safety hood (CE certified) • Sold together with additional accessories / cutterheads (ready for immediate operation). • Free loading onto transport: Bdodez Srbmepfx Airoi The machine is in pristine mechanical and visual condition.

Condition: used, Year of construction: 2007, functionality: fully functional, Window and door component production line Manufacturer: WEINIG, Type: UC-Matic Year of manufacture: 2007 Line consisting of: Pos. 1: Infeed Unirex 2000 Transverse + longitudinal conveying system PHV R For the indirect feeding of both identical and different workpiece lengths. System consisting of a transverse conveyor and a roller conveyor - Transverse conveyor, 6 lanes - Loading area for manual filling. - Automatic buffer zone - Automatic part separation using a clamping and reversing device - Transfer to a roller conveyor - Roller conveyor, powered - Pneumatically height-adjustable Adjustment travel, max.: 25 mm Transport length: 2300 mm Roller width: 160 mm Roller diameter: 50 mm Roller spacing, graduated: 120-825 mm Transport speed, fixed: 20 m/min. Motor: 0.2 KW (0.3 HP) 380 V / 50 Hz Pos. 2: Conveyor belts Conveyor belt, powered (TB 250) With center guide Transport length: 1000 mm Belt width: 250 mm Working height, adjustable: 820-1050 mm Guide stop, right: 70 mm Belt speed, fixed: approx. 20 m/min. Motor: 0.2 KW (0.3 HP) 380 V / 50 Hz Pos. 3: Machining center Weinig Unirex 2000 Pos. 4: Transport between machines with double part formation Longitudinal + transverse conveying system LKF 1 For the transport and stacking of both identical and different workpiece lengths at the end of the line. Workpiece reference line: roller conveyor – infeed side System consisting of a roller conveyor and a transverse conveyor - Roller conveyor, powered - Transport length: 2300 mm - Transverse conveyor, 7 lanes, height-adjustable Bdjdpo Agvhpofx Airei Turning device WVU in the transverse conveyor, including options For changing the end face of workpieces. Rotational movement motorized 180° around the vertical axis. Pneumatic height adjustment of the turning device up to the max. wood height (100 mm) 4 x Additional automatic buffer zone (max. 8 zones) Pos. 5: Conveyor belts Conveyor belt, powered (TB 250) Without center guide and glass strip guide plate Pos. 6: Transverse machining Weinig Unitec 15 1. Tenon and groove spindle 2. Tenon and groove spindle Pos. 7: Conveyor belts Conveyor belt, powered (TB 250) Without center guide and glass strip guide plate Transport length: 1000 mm Belt width: 250 mm Working height, adjustable: 820-1050 mm Guide stop, right: 70 mm Belt speed, fixed: approx. 20 m/min. Motor: 0.2 KW (0.3 HP) 380 V / 50 Hz Pos. 8: Longitudinal machining Weinig Univar 12 1. Profiling spindle 2. Profiling spindle Profiling cutter head, horizontal, top 3. Profiling spindle Profiling cutter head, vertical, right Profiling cutter head, vertical, top (in the auxiliary stand) Profiling cutter head, horizontal, bottom (in the auxiliary stand) Pos. 9: Turning system with clamping device Pos. 10: Outfeed of the line Longitudinal + transverse conveying system LKF 1 For the transport and stacking of both identical and different workpiece lengths at the end of the line. Workpiece reference line: roller conveyor - infeed side System consisting of a roller conveyor and a transverse conveyor - Roller conveyor, powered - Transport length: 2300 mm - Roller width: 230 mm - Roller diameter: 50 mm - Roller spacing, graduated: 120 - 825 mm - Transport speed, fixed: 20 m/min. - Motor: 0.2 KW (0.3 HP) 380 V / 50 Hz - Stop height: 30 mm - Transverse conveyor, 7 lanes, height-adjustable - Adjustment travel: 25 mm - Conveying and stacking length: 3000 mm - Support width: 2000 mm - Working height, adjustable: 820-1050 mm - Conveying speed, fixed: 10 m/min. - Moto

Condition: excellent (used), Year of construction: 1998, I sell the window production set: 1pc. tenoning profiling centre Weinig Unitec 10 1pc. profiling automat centre Weinig Univar 10 Year 1998. Bdedsfzzhyspfx Airsi Moulding heads OERTLI. Available immediately. Total price 17.000 euro. Condition very good !

Condition: excellent (used), Year of construction: 2011, complete window production line WEINIG CONTUREX C 124 with universal drilling head in very good condition Bsdpfx Aezg T Hhjirjdi year of manufacture: 2011

Year of construction: 1998, condition: ready for operation (used), An angular system for Weinig window and door production is available. Max. tool outside diameter: 320mm, max. tool flight circle: 232mm, slotted spindle length: 640mm, profiling and synchronized spindle length: 285mm-320mm, control: Siemens WS400. Including complete tooling and style window. Documentation available. Bedpfx Aotq U A Ioirjdi

Condition: excellent (used), Blade: Z 6 Cutting diameter: 150 mm Bore: 50 mm Length: 150 mm Bdsdpozxb U Rofx Airei Clamping: Hydraulic Price per piece.

Condition: excellent (used), Year of construction: 2011, functionality: fully functional, working width: 230 mm, planing height: 120 mm, spindle diameter: 40 mm, spindle speed (min.): 8,000 rpm, Weinig Powermat 400 4 Spindles Bdodpo Ahidvsfx Airei 230 x 120 mm All Powerlock with 8000 rpm Feed speed 5–30 m/min Bottom 7,5 kW Right + Left combination motor 11,0 kW Top 11,0 kW Radiale CNC controlled setting of width and height in combination with Memory System Infeed table 2,5 m Automatic Waxilitpump Memory System

Condition: ready for operation (used), Year of construction: 2000, machine/vehicle number: 88.961, functionality: fully functional, planing width: 230 mm, spindle diameter: 40 mm, number of spindles: 10, planing height: 120 mm, No minimum price – guaranteed sale to the highest bidder! TECHNICAL DETAILS Bdsdpfxj Af Hgvj Airoi Number of spindles: 10 1st planing axis: 260 mm Spindle 1 Position: Bottom Spindle diameter: 40 mm Planing shaft speed: 8,000 rpm Spindle 2 Position: Right Spindle diameter: 40 mm Planing shaft speed: 8,000 rpm Spindle 3 Position: Left Spindle diameter: 40 mm Planing shaft speed: 8,000 rpm Spindle 4 Position: Right Spindle diameter: 40 mm Planing shaft speed: 8,000 rpm Spindle 5 Position: Top Spindle diameter: 40 mm Planing shaft speed: 8,000 rpm Spindle 6 Position: Bottom Spindle diameter: 40 mm Planing shaft speed: 8,000 rpm Spindle 7 Position: Top Spindle diameter: 40 mm Planing shaft speed: 8,000 rpm Spindle 8 Position: Bottom Spindle diameter: 40 mm Planing shaft speed: 8,000 rpm Spindle 9 Position: Top Spindle diameter: 40 mm Planing shaft speed: 8,000 rpm Spindle 10 Position: Top Spindle diameter: 40 mm Planing shaft speed: 8,000 rpm Planing width: min. 10 mm Planing width: max. 230 mm Planing height: max. 120 mm Infeed table length: 1,975 mm Diameter of feed rollers: 140 mm Conveyor motor power: 5.5 kW Conveyor drive: Cardan drive Feed speed: min. 4 m/min Feed speed: max. 24 m/min Feed speed control: Stepless MACHINE DETAILS Diameter of extraction nozzle: 140 mm Lubrication system: Manual Voltage: 380 V Current consumption: 189 A Fuse rating: 200 A Power: 80 kW Dimensions & Weight Dimensions (L x W x H): 7,100 x 2,100 x 2,200 mm Weight: 6,000 kg Number of transport packages: 1 EQUIPMENT Documentation CE marking

Condition: excellent (used), CATALOGUE NUMBER 7651 Technical data: - track width 250mm - roller width 250mm - max. disc diameter 400mm - disc bore diameter 70mm - max. cutting height 120mm - table width with clearance 810mm - table length 1780mm – from above: - pawls/deflectors - smooth feed roller - pawls - smooth feed roller - saw arbour - 2 smooth feed rollers – from below: - guide - pawls/deflectors - track - central lubrication - stepless feed rate adjustment - feed motor 1.1kW - main motor 37kW - manual body lifting - manual saw arbour lifting - diameter of dust extraction nozzle 200mm - overall dimensions L/W/H 2150x1480x1760mm Bjdpfx Aiezulvwerjdi - weight 1735kg ADVANTAGES - German production - stepless feed rate adjustment - multi-blade saw, used, very good condition Net price: 46900 PLN Net price: 10910 EUR, depending on the exchange rate of 4.30 EUR (Prices may vary due to higher fluctuations)

Condition: excellent (used), Year of construction: 2006, functionality: fully functional, 100 m/min Engine power: 5.5 kW Control panel Accelerator Dimensions: 500 x 150 cm Hydraulic drive Year of manufacture: 2006 5 transverse chains Bodpfxj Ahimho Airedi Pneumatic pressure roller for the drive rollers

Condition: excellent (used), Catalog number: 7959 TECHNICAL DATA - track width: 250mm - shaft width: 250mm - max. blade diameter for multi-blade saw: 350mm - blade arbor diameter: 70mm - max. cutting height for multi-blade saw: 120mm - table width with clearance: 830mm - table length: 1780mm – from above: - fences - roller, sliding pressure roller, metal, smooth - fences - pressure roller, sliding - saw shaft - pressure roller, sliding, metal, 2 pcs – from below: - guide strip - fences - track - electric adjustment of the machine body, up/down - manual adjustment of the saw shaft - central lubrication - stepless feed rate adjustment - feed motor: 1.1kW - main motor: 37kW - diameter of the dust extraction nozzle: 170mm - overall dimensions (L/W/H): 2000x1500x2000mm Bdsdpfx Ajzxq Efjirji - weight: 1850kg ADVANTAGES - German production - Used multi-blade saw, very good condition Net price: 45900 PLN Net price: 10675 EUR, depending on the exchange rate of 4.30 EUR (Prices are subject to change due to larger fluctuations)

Condition: excellent (used), Catalog number 7961 TECHNICAL DATA - track width 250mm - roller width 250mm - max. disc diameter 350mm - disc bore diameter 70mm - max. cutting height 100mm - table width with clearance 940mm - table length 1700mm - from above: - pawls/ejectors - pressure roller, metal, smooth - roller with saws - pressure roller, metal, smooth 2 pcs - from below: - guide - pawls/ejectors - sliding roller, smooth - track - central lubrication - feed motor 4kW - main motor 37kW - stepless feed speed adjustment - manual body lifting - manual roller with saws lifting - diameter of dust extraction nozzle 200mm - overall dimensions L/W/H of the machine 1800x1500x1700mm - weight 1956kg ADVANTAGES – German made – stepless feed speed adjustment – multi-blade saw, used, very good condition Net price: 22900 PLN Net price: 5326 EUR, depending on the exchange rate of 4.30 EUR (Prices may change due to higher fluctuations) Bdedpfxszxqqbe Airji

Condition: excellent (used), Four-sided planer WEINIG CUBE - used - Reversible knife system, electric height adjustment, lubricant pump, dust-tested, width and height display via laser, stacking system Cube Mech ----- Technical data ----- Planer width: 260 mm, Planer height: 160 mm, Number of spindles: 4, Motor spindle 1: 5.5 kW, Motor spindle 2 + 3: 5.5 kW, Motor spindle 4: 5.5 kW, Feed speeds: 6-12 rpm, Bsdez Hk Slopfx Airjdi Extraction nozzle Ø: 250 mm Quality information: - Feed system checked - Table guides checked - All settings checked - Complete basic inspection - Complete basic cleaning - Pneumatics checked - Ready for immediate use

Condition: excellent (used), functionality: fully functional, Hydraulic feeder type 814 300 80 m/min. Motor power: 5.5 kW Bdodpe Ahimaefx Airsi Control panel Year of manufacture: 1991

Condition: excellent (used), - Number of spindles: 4. - Planing width: max 120 mm. Bjdpfx Aoygy Tpoirodi - Planing height: max 100 mm. - Motor power: typically 4 x 3 kW. - 4 feed speeds - Spindle diameter: 30 mm.

Condition: good (used), Weinig planing head Bore – 50 Bdedpfx Aijz N A Thjroi

Condition: excellent (used), Year of construction: 1995, MACHINE CONNECTED, WORKING IN GOOD CONDITION, POSSIBILITY OF TESTING - INCLUDED IN THE TOOL SET The Weinig UC 10 combined mortise, tenon and rebate machine for the flexible production of various windows, elements and doors without changing tools. Frame-by-frame production, serial or one-piece. - Units: 1. Cross cut saw: ø 40 mm, 3 kW 2nd tenoning and slotting spindle: clamping length: 320 mm, ø 50 mm, stroke: 8 x 80 mm, 11 kW 3rd profiling spindle 1: clamping length: 320 mm, ø 50 mm, stroke: 4 x 80 mm, 11 kW Bodpfx Aielc N N Uerodi 4th profiling unit, horizontal from above, 3 kW, ø 40 mm, clamp length: 40 mm 5th profiling spindle 2: clamping length: 320 mm, ø 50 mm, stroke: 4 x 80 mm, 11 kW 6th profiling unit, vertical right, 3 kW, ø 40 mm, clamp length: 160 mm - Studio window unit - Slat conveyor with conveyor belt for automatic return transport to the operator - NC axis: feed height adjustment - Milling package THE MACHINE HAS 3 SETS OF TOOLS FOR WOODEN WINDOWS - PROFILES 68/78/92

Condition: ready for operation (used), Year of construction: 2015, Weinig Powermat 700 6x 40mm Spindles. CNC on spindles 3, 4 and 5. Width 20-230mm Bdjdpfo Af Iu Tjx Airei Height 10-160mm Memory system Automatic lubrication system for bedplates. No 1.  11kW - Bottom 7000rpm No 2. 7.5kW - Right 7000rpm No 3. 7.5kW - Left 7000rpm No 4. 15kW - Top 7000rpm No 5 . 11kW - Top 7000rpm No 6 . 11kW - Bottom 7000rpm Electronically variable feed. 40m/min Short infeed table. Marathon coating for machine bed plates. Manuals & hand tools.

Condition: excellent (used), Year of construction: 2004, Weinig Dimter Opticut 200 Classic optimizer - after the technical review Bdsdpfx Aegz Tbdoiroi - year of production 2004 - declaration of conformity, DTR - German production TECHNICAL PARAMETERS: min./max. entry length of the element 800/3500 mm min./max. entry width of the element 80/200 mm min./max. element input thickness 12/80 mm type of wood hard / soft dash cutting wood classification max. feed speed 120 m / min acceleration 5 m / s saw blade diameter fi 500 mm saw hole diameter 30 mm saw spindle speed 4600 U / min duration of 1 cycle 0.7 - 1.2 sec a powered conveyor at the entrance and a marking station with side tables for two markers conveyor belt total power 15 kW length measurement - fluorescence camera for 3 qualities receiving station - conveyor belt full optimization total length 8300 mm stub diameter 80 and 120 mm OptiCom Direct control power supply 400 V / 50 Hz

Condition: used, Year of construction: 1996, functionality: fully functional, High-performance planing and profiling machines / four-sided planer Manufacturer: Weinig Model: Hydromat 30 / H 30 N System originates from a parquet factory Bsdpfx Aijz D Exberjdi Planing width: approx. 220 mm Planing height: approx. 120 mm Spindle arrangement: Bottom (joiner), 22 kW Right, 7.5 kW Left, 18 kW Top, 30 kW Spindle diameter: 50 mm Feed speed adjustable, 12 – 120 m/min. Voltage: 380 V, 50 Hz