Used Bridge Type Machining for sale (88,260)

Condition: like new (used), Year of construction: 2010, Retrofitted: 2026 Numerical control: HEIDENHAIN TNC-i530 Technical features Dimensions Table dimensions: 8500 x 2500 mmNumber of T slots: 17T slots dimensions: 22 mm Traverses of axis X axis traverse: 8000 mmY axis traverse: 3800 mmZ axis traverse: 1500 mmVertical capacity (VC): 168 / 1668 mmDistance between columns: 3100 mm Milling head Auto-indexing differential head (UAD - 0,02º)Tool clamping system: HydraulicTaper nose: ISO50 (DIN69871) / Pull stud: DIN69872Speed range: 6000 rpmSpindle power: 30 kW Feedrates Rapid feedrate (X / Y,Z): 7200 / 12000 mm/min Weight and dimensions Maximum weight on table: 35000 kgMachine weight approximate: 79000 KgMachine dimensions approximate: 22700 x 7660 x 6800 mm Accessories Guarding: 2 sliding doors with a new perimetral wire-mesh fenceAutomatic tool changer: ATC-60Chip conveyor: 2longitudinal hinge typeElectronic handwheel: New HR-510Coolant: External internal high pressure through spindle Sale conditions Warranty: 6 months mechanical spare partsPrice and sale conditions: On request View all technical features Ledpfx Asz Alwqokmjhn

Condition: like new (used), Year of construction: 2007, Table size 2200 x 1000 mm Longitudinal travel 2050 mm Cross travel 1150 mm Vertical travel 760 mm Spindle speeds 12.000 rpm Lodpfx Ajg Tdavekmehn Spindle taper ISA 40 Power feed 1 - 8.000 mm/min Rapid speed Z-axe 15 m/min Rapid speed X - Y axis 20 m/min Control Heidenhain IT 530 NC Tool change 40 pcs

Condition: like new (used), Year of construction: 1996, Retrofitted: 2026 Lsdpfxoyf Rr Ts Akmehn Numerical control: NUEVO/NEW HEIDENHAIN TNC-320 Technical features Dimensions Table dimensions: 6000 x 2000 mmNumber of T slots: 13T slots dimensions: 22 mm Traverses of axis X axis traverse: 6000 mmY axis traverse: 3800 mmZ axis traverse: 1000 mmVertical capacity (VC): 500 / 1500 mm (direct exit)Distance between columns: 3100 mm Milling head Universal head UM40 (Body B: manual / Body C: 3º auto-indexing) Direct spindleTool clamping system: HydraulicTaper nose: ISO50 (DIN-69871)  /  Pull stud: DIN-69872Speed range: 3000 rpmSpindle power: 30 kW Feedrates Rapid feedrate (X / Y,Z): 7000 / 12000 mm/min Weight and dimensions Maximum weight on table: 15000 kgMachine weight approximate: 50000 KgMachine dimensions approximate: 14740 x 5330 x 5050 mm Accessories Guarding: 2 sliding doors with a new perimetral wire-mesh safety fenceHead changer: automatic with lateral hinge/support in columnChip conveyor: 2 longitudinal palletsElectronic handwheel: New HR-510Coolant: External Internal high pressure through spindle (internal only with direct exit head) Sale conditions Warranty: 6 months mechanical spare partsPrice and sale conditions: On request View all technical features

Condition: used, Year of construction: 1997, functionality: fully functional, total height: 4,000 mm, total width: 5,000 mm, total length: 5,000 mm, overall weight: 16,000 kg, ANAYAK FBZ-HV-2000 – CNC Bed Milling Machine Manufacturer: ANAYAK – Industrias Anayak S.A., Spain Model: FBZ-HV-2000 Machine Type: CNC Bed Milling Machine / Universal Bed Milling Machine Year of Manufacture: 1997 Condition: Used Technical Data • Travel X: 2,000 mm • Travel Y: 935 mm • Travel Z: 1,000 mm • Table Dimensions: 900x • Spindle Taper: ISO 50 • Spindle Speed: 60 - 3000 rpm • Control System: CNC Control HEIDENHAIN TNC 426 • Feed Rate X/Y/Z: 1 - 3000 mm/min • Rapid Traverse: 10 m/min • Universal Milling Head: Yes • Coolant System: Yes • Chip Conveyor: Yes • Electrical Connection: 50 kW • Machine Weight: 16,000 kg Documentation available Lhodpfjz Epz Aox Akmon ANAYAK FBZ-HV-2000 CNC Bed Milling Machine, year of manufacture 1997. Working area X 2,000 mm. Inspection possible by appointment. Sale from current location.

Condition: used, The Mafell HIT-M zero-joint edgebanding machine applies edging material using zero-joint technology to straight, bevelled and free-form workpiece edges. The edging is fed in automatically and bonded to the functional layer of the edging material by means of heat; the BAT-V worktable assists with the guidance and positioning of workpieces in stationary applications. Systainer labelling: HIT-M 65 Lsdpfx Ako Ad D Uhomshn Type plate labelling: HIT-M-2750 Technical data: - Edge height: 10–65 mm - Edge thickness: 0.4–3.0 mm - Inner radius: min. 22 mm

Condition: excellent (used), Year of construction: 1984, functionality: fully functional, travel distance X-axis: 760 mm, travel distance Y-axis: 370 mm, travel distance Z-axis: 335 mm, rapid traverse X-axis: 5 m/min, rapid traverse Y-axis: 5 m/min, table width: 420 mm, table length: 1,200 mm, spindle mount: MK 4, total height: 2,310 mm, total width: 1,900 mm, total length: 2,650 mm, type of input current: three-phase, rotational speed (max.): 4,000 rpm, rotational speed (min.): 40 rpm, workpiece weight (max.): 405 kg, quill travel distance: 150 mm, power: 6 kW (8.16 HP), Equipment: rotational speed infinitely variable, Type control: Heidenhein 150 System resolution: 0,001 mm Ljdpfxeunhy Se Akmehn Documentation for machine

Condition: excellent (used), Year of construction: 1978, functionality: fully functional, I am selling this machine. A video of the machine can be sent via WhatsApp. It can be tested while connected. Very good condition. X 11,500, Y 3,150, Z 2,000, clamping M 100 Includes a support column, 6 pieces of boards with dimensions 6,500 x 1,850 x 400 mm. Rotary table E 20. Heads, etc. This is a complete workstation. Lhodpfxoxwl Tbo Akmjn Weight approximately 200,000 kg.

Condition: new, Year of construction: 2017, functionality: fully functional, operating hours: 25 h, input voltage: 380 V, type of input current: three-phase, total height: 1,500 mm, total length: 5,200 mm, total width: 2,350 mm, overall weight: 2,500 kg, saw band length: 520 mm, saw band width: 580 mm, New machine. Ljdpfsunia Hsx Akmehn

Condition: excellent (used), For sale: a professional, two-spindle eyeletting/riveting machine, Constantin Hang Typ 150 3P, manufactured in Germany in 1983. This machine is designed for the simultaneous installation of two eyelets or rivets, significantly increasing work efficiency. The machine is used in bookbinding facilities, printing companies, and factories producing binders, folders, calendars, tags, and other paper products. It is equipped with two working units, an adjustable table, and precise guides that allow for accurate material positioning. Technical specifications: Manufacturer: Constantin Hang Maschinenfabrik Model: Typ 150 3P Year of manufacture: 1983 Serial number: 35805 Country of manufacture: Germany Type: two-spindle eyeletting/riveting machine Two working heads Lhedpfjz Sm Urex Akmon Adjustable work table Guides and material position adjustment Robust industrial construction Electric drive Condition: used Applications: eyelet installation, riveting, binder production, folder production, calendars, promotional tags, cardboard packaging, bookbinding and printing. The machine is sold in the condition shown in the photos.

Condition: excellent (used), A robust industrial machine of German manufacture, Walther Trowal, model DLT 4, year 1980. This device is designed for surface treatment of metal, aluminum, or plastic parts – the trowalizing process (deburring, edge rounding, polishing, cleaning). A classic drum design – reliable, massive, and durable, typical of “West Germany” production. Technical data: • Model: DLT 4 • Manufacturer: Carl Kurt Walther GmbH & Co. KG, Wuppertal-Vohwinkel (West Germany) • Year of manufacture: 1980 • Drive type: ZOD71N 10 • Motor power: 0.38 kW • Power supply: 380 V / 50 Hz • Rotational speed: 31 / 61 rpm • Range: 3.5 – 7 rpm • Drum diameter: Ø 70 cm • Working length: approx. 80 cm • Net weight: 825 kg Condition description: • The machine is complete, and the drum rotates smoothly and evenly. • Perforation and interior are in good condition. • No signs of cracks or structural damage. • Requires electrical connection and possibly a service inspection. • Ideal for a tool shop, machining facility, or production line. Applications: • Deburring and cleaning parts after machining. • Polishing metal or aluminum components. • Processing screws, bushings, stamped parts, castings, and precision parts. Condition: used, solid, classic Walther Trowal design – requires minor refurbishment or is ready for immediate use. Ledpfx Akez Slhujmohn

Condition: used, Year of construction: 1933, functionality: fully functional, travel distance X-axis: 1,600 mm, travel distance Y-axis: 1,259 mm, travel distance Z-axis: 1,500 mm, table length: 1,250 mm, table width: 1,400 mm, overall weight: 10,500 kg, x-travel 1600 mm y-travel 1259 mm z-travel 1500 mm tool adaptor SK 50 weight 10,5 t output 49 kw feed 6000 m/min control Heidenhein 151 1600 min Lhjdpfez Aun Ssx Akmsn table: 1250-1400 mm serial number 1933 weight of the machine ca. 10,5 t

Condition: like new (used), Year of construction: 2015, functionality: fully functional, travel distance X-axis: 3,000 mm, travel distance Y-axis: 1,200 mm, travel distance Z-axis: 1,500 mm, rapid traverse X-axis: 20,000 m/min, rapid traverse Y-axis: 20,000 m/min, rapid traverse Z-axis: 20,000 m/min, position of the milling head: 0.001, spindle speed (max.): 3,500 rpm, table width: 1,500 mm, table load: 10,000 kg, table length: 1,500 mm, type of input current: three-phase, workpiece weight (max.): 10,000 kg, overall weight: 26,000 kg, input voltage: 400 V, LAGUN GORATU GTM 3 MILLING MACHINE (TYPE T) TECHNICAL SPECIFICATIONS Brand: Lagun Model: GTM3 Year: 2016 CNC: Heidenhain iTNC 530 Table: 1500 x 1500 mm X: 3000 mm Y: 1200 mm Z: 1500 mm V (Column cross travel: 1000 mm Automatic milling head - ISO 50 Spindle speed: 4,000 rpm Rotary table (capacity 10 tons) Internal coolant system: 40 Bar Lsdpsy T Sffjfx Akmjhn Spindle power: 28/34.5 Kw Coolant filter PRICE AND FURTHER INFORMATION AVAILABLE UPON REQUEST (CNC, SIEMENS, HASS, LAGUN, FAGOR, CINCINNATI, HEIDENHAIN, MACHINING, PINACHO, MORISEIKI, MILLING MACHINE, LATHE, GRINDER, BORING MACHINE, PRESS, LASER, SHEAR, PRESS BRAKE)

Condition: ready for operation (used), Year of construction: 2000, operating hours: 22,000 h, functionality: fully functional, machine/vehicle number: 28217, travel distance X-axis: 2,700 mm, travel distance Y-axis: 1,200 mm, travel distance Z-axis: 1,500 mm, spindle speed (max.): 6,000 rpm, overall weight: 18,500 kg, The combination of the Zayer 20 KF 3000 machine, the Heidenhain TNC 426 control system, and a swivel universal head (Huron type) transforms this milling machine into a versatile and powerful production hub. The swivel head completely eliminates the biggest drawback of large machines – the need to constantly reposition and re-clamp heavy workpieces for machining at different angles. Here’s how precisely this head works with the Heidenhain system and what possibilities it offers. Kinematics and capabilities of the swivel head. The head in ZAYER machines consists of two inclined dividing planes that rotate relative to each other. This design allows for: Transition from vertical to horizontal: In a few moments, you can change the machine from a vertical machining center to a horizontal milling machine. This makes it possible, for example, to simultaneously machine the top of a workpiece and, a moment later, mill its sides. Milling at any angle: The head allows you to position the spindle in space at unusual angles, which is crucial for machining inclined surfaces, chamfering large plates, or creating converging pockets. Enormous rigidity: Although the head is movable, its design locks with tremendous force (mechanically or hydraulically). The machine does not lose any of its ability to perform heavy rough machining (so-called “hogging” with a large chip). Cycle 19 and PLANE in Heidenhain TNC 426 – The magic of software. The biggest challenge with a swivel head is the mathematics – when you tilt the tool, the zero points in the X, Y, and Z axes change. Heidenhain TNC 426 solves this automatically using dedicated geometric functions: Cycle 19 (Machining Plane): You inform the control system of the angle at which you have physically rotated the head. The computer immediately recalculates the entire coordinate system. The tool moves in the axis at an angle, and you program as if you were working on a flat surface. Coordinate transformation: You don't have to manually calculate the tool offset after rotating the head. The controller knows the exact dimensions of the machine's kinematics and automatically corrects the position of the X, Y, and Z axes. Angular drilling: After calling Cycle 19, the standard drilling cycle (e.g., deep drilling) automatically performs the feed movement in the inclined axis – the operator writes the program in the Z axis, and the machine physically moves with a combination of the X, Y, and Z axes. Production benefits in the workshop. Machining 5 sides of a workpiece from a single setup: You place a 5-ton steel block on the table. You clamp it once. By rotating the head, you machine the top and all four sides without moving the workpiece with a crane. This guarantees perfect maintenance of geometric tolerances (perpendicularity and parallelism of the surfaces). Time savings and safety: Repositioning a large workpiece on the table often takes hours and carries the risk of accidents or damage to the table. With this head, you only reposition the tool – manually using dividing plates or in an automatic version from the program. Ledpfx Aozrd Tvokmohn

Condition: used, Year of construction: 1994, functionality: fully functional, overall weight: 27,000 kg, spindle diameter 125 mm x-travel 2000 mm y-travel 1600 mm Control Siemens 840 C Lhsdpjztfwxjfx Akmen z-travel 1400 mm 600 mm ja total power requirement 40 kW weight of the machine ca. 27 t

Condition: good (used), Year of construction: 1999, functionality: fully functional, x-travel 4000 mm Lhsdsxzuz Nopfx Akmen y-travel 1000 mm z-travel 1500 mm Control Heidenhain 355 weight max. 10 t ja more pictures available

Condition: used, Year of construction: 1980, No minimum price – guaranteed sale to the highest bidder! Ljdpfx Ae Aa Ahrokmjhn Loading: December 1st to December 10th. TECHNICAL DETAILS General Information Machine type: Universal bed-type milling machine Machine weight: approx. 11 tons Travel distances X-axis travel: 1,600 mm Y-axis travel: 800 mm Z-axis travel: 630 mm Spindle and tool holder Spindle taper: SK 50 Speed range: 20–2,000 rpm Horizontal milling spindle: SK 50 Vertical milling spindle: SK 50 Feed rate and rapid traverse Feed rate: 10–6,000 mm/min Rapid traverse: 6 m/min Work table Table load capacity: max. 5,000 kg Control system Control system: Philips NC 6664 Axes: 4 Program memory: available Rotary table Rotary table: NC-controlled Diameter: 630 mm Electrical data Total power requirement: 18 kW Control cabinet Control cabinet dimensions: 1,800 × 530 × 2,000 mm Dimensions Space requirement: approx. 4.6 × 2.9 × 2.62 m EQUIPMENT NC-controlled rotary table Hydraulic tool clamping Coolant system Chip conveyor Horizontal milling spindle Vertical milling spindle Separate control cabinet Safety emergency stop

Condition: ready for operation (used), functionality: fully functional, No minimum price – guaranteed sale to the highest bidder! Loading: December 1st to December 10th. TECHNICAL DETAILS GENERAL Machine type: Tool milling machine Manufacturer: Infratirea Oradea Type: FUS 25 Year of manufacture: 1986 Machine number: 2,628 WORKING AREA Travel X-axis: approx. 400 mm Travel Y-axis: 300 mm Travel Z-axis: 300 mm TABLE Table dimensions: 860 × 400 mm Number of slots: 6 SPINDLE Tool holder: SK 40 MACHINE DETAILS ELECTRICAL DATA Lhjdpfe Ad Avwex Akmjn Operating voltage: 400 V Frequency: 50 Hz DIMENSIONS AND WEIGHT Length: 1,500 mm Width: 1,200 mm Height: 1,800 mm Weight: 1,000 kg EQUIPMENT 3-axis digital display Mounted machine vise Vise jaw width: 160 mm

Condition: used, Year of construction: 2011, functionality: limited functionality, machine/vehicle number: 82110802, travel distance X-axis: 8,000 mm, travel distance Y-axis: 1,300 mm, travel distance Z-axis: 2,000 mm, table width: 1,150 mm, table length: 9,950 mm, rotational speed (max.): 4,000 rpm, rotational speed (min.): 1 rpm, input voltage: 400 V, power: 38 kW (51.67 HP), We are offering this used Kiheung RIGITRAX bed milling machine, manufactured in 2011. Manufacturer: KIHEUNG Model: RIGITRAX Serial number: 82110802 Date of manufacture: 09/08/2011 Voltage: 400 V Frequency: 50 Hz Machine hours: Control on = 11,609 hours Machine on = 40,384 hours Program running = 15,962 hours Spindle running time = 14,324 hours (As of 10/26) Further technical data can be found in the attached PDF. Machine loading will be handled by the customer. The machine is currently being disassembled. Lhodpfsz Ruy Njx Akmjn Its functionality was recorded in a video in week 41. If you have any questions or require further information, please send us a message or call us.

Condition: used, Year of construction: 2015, operating hours: 10,000 h, functionality: fully functional, travel distance X-axis: 7,800 mm, travel distance Y-axis: 3,300 mm, travel distance Z-axis: 900 mm, table width: 2,500 mm, table load: 16,000 kg, table length: 6,000 mm, table height: 500 mm, total height: 3,300 mm, total width: 5,000 mm, total length: 7,800 mm, type of input current: three-phase, rotational speed (max.): 3,000 rpm, workpiece weight (max.): 16,000 kg, overall weight: 60,000 kg, quill diameter: 150 mm, year of last overhaul: 2015, input voltage: 380 V, We offer this used Titan AFL bed type milling machine, year of construction 2015. Manufacturer: Titan Model: AFL Year of manufacture: 2015 Condition: used Category ID: 1170 Type ID: 2584 Machine type: bed type milling machine Ledszxc Ifspfx Akmohn If you have any questions or need more information, feel free to send us a message or give us a call.

Condition: used, Year of construction: 1980, functionality: limited functionality, machine/vehicle number: 4119, travel distance X-axis: 1,450 mm, travel distance Y-axis: 365 mm, travel distance Z-axis: 415 mm, total width: 3,400 mm, total length: 4,200 mm, overall weight: 3,500 kg, Last major overhaul in 2006 Swiveling spindle head, 360° Control: Digital display Clamping area: 1800 x 400 mm Table load: 1000 kg Travel in the longitudinal direction: 1450 mm Travel in the transverse direction: 365 mm Travel in the vertical direction: 415 mm Spindle connection: SK40 Spindle speed: 31.5-45-63-90-125-180-250-355-500-710-1000-1400 rpm Feed rate in the longitudinal direction: 8-1200 mm/min Feed rate in the transverse direction: 8-1200 mm/min Feed rate in the vertical direction: 4-600 mm/min Spindle drive: 7.5 kW Feed motor: 3.2 kW Lsdpfxsz Nfbze Akmohn Coolant pump: 0.18 kW Hydraulic system: 0.37 kW Total connected load: 12 kVA Weight, approx.: 3500 kg Space requirement, approx. (L x W): 4200 x 3400 mm Technical data subject to change without notice. Errors and prior sale excepted.

Condition: used, The automatic profiling machine Weinig Type Univar 10 is designed for profiling and rebating windows, doors, individual components and similar workpieces with circumferential profiles. Its mechanisation enables single-person operation, making the machine suitable for efficient processing in window and door manufacturing. Technical data: - Year of manufacture: 1998 - 1. Profiling spindle – Motor: 11 kW - 1. Profiling spindle – Spindle diameter: 50 mm - 1. Profiling spindle – Clamping length: 320 mm - 1. Profiling spindle – Stroke: 4 x 80 mm - 1. Profiling spindle – Design: hydraulic - 1. Profiling spindle – Synchronisation device - 2. Profiling spindle – Motor: 11 kW - 2. Profiling spindle – Spindle diameter: 50 mm - 2. Profiling spindle – Clamping length: 320 mm Lhodjztv Easpfx Akmen - 2. Profiling spindle – Stroke: 4 x 80 mm - 2. Profiling spindle – Design: hydraulic

Condition: used, Year of construction: 2014, functionality: fully functional, travel distance X-axis: 2,000 mm, travel distance Y-axis: 1,200 mm, travel distance Z-axis: 1,500 mm, spindle speed (max.): 6,000 rpm, CNC control: HEIDENHAIN iTNC 530 (HSCI) with a 15.1" flat-screen display and a pivoting control panel 2. Work table / Clamping surface Length: 2,200 mm Width: 1,000 mm Maximum transport load: 7,200 kg Number of T-slots: 7 Size of T-slots: 22 H12 mm Reference slot: 22 H7 mm T-slot spacing: 140 mm 3. Automatic milling head (Option -AIH60A OIL) Design: Diagonal, swiveling in 2 planes Speed range: 0 – 6,000 rpm (Option) Tool holder: DIN 69871 AD (ISO 50) / Taper DIN 69871 Draw bolt: DIN 69872 Form A Tool clamping force: 15,000 N Lhedpfxoz Tugbj Akmjn Lubrication: Automatic grease cycle lubrication (housing made of steel cast GS 60, designed for 45 kW and max. 2,000 Nm) 4. Main spindle drive motor / Manufacturer: Siemens, main spindle drive, Type: 1PH7 Drive power max. (Option): 36 kW from 376 rpm (standard equipment 30 kW) Maximum torque (Option): 930 Nm (constant up to 376 rpm; optional in gearbox up to 1,460 Nm or 1,750 Nm) Speed control / Gearbox: 3-stage (oil-cooled) with automatic switching and helical gears made of hardened chrome-nickel steel Spindle speeds (6,000 rpm Option): Low range: 0 – 984 rpm Medium range: 918 – 2,456 rpm High range: 2,404 – 6,000 rpm 5. Axis drives and axis feeds Axis drive motors: Manufacturer Siemens (digital AC drives) Rapid traverse max. (X/Y/Z axis): 15,000 mm/min Working feed max. (X/Y/Z axis): 12,000 mm/min Feed force max. (X/Y/Z axis): 24,000 N Measuring system: Linear measuring system “Heidenhain” (0.001 mm) in all axes Machine weight: approx. 17,000 kg Connection power: approx. 54 kVA Materials: Machine bed, work table, machine frame and vertical slide made of lamellar graphite cast iron GG30; milling slide made of nodular graphite cast iron GJS-600 Guide rails: Hardened and ground with Turcite B sliding strip coating (in X/Y/Z) Hydraulic system: Manufacturer Rexroth (including hydraulic weight compensation in the vertical axis) Lubrication & cooling: Automatic central lubrication of axes/ball screws, control cabinet with lighting and air conditioning unit Additional control: Portable electronic handwheel “Heidenhain HR-410” with axis selection, additional electric foot pedal for manual tool change Enclosure & Safety: 4-sided splash guard enclosure with large sliding doors, safety switches (CE compliant) and safety fencing for the rear.

Condition: excellent (used), WSK Intermarking Fritz Wagner Type 1164 – hot stamping / foil gilding machine Lodpfx Aez Sm Ucekmshn

Condition: like new (used), Year of construction: 2026, functionality: fully functional, TRI OPTIQUE Manufacturer: PELLENC Type: M 2800 BB HR Working width: 2,800 mm Option installed in June 2024: separator for all types of metal, including stainless steel, metal sensor. New belt. The machine is capable of sorting all types of plastic by quality, all metals including stainless steel, and wood. The machine has just been serviced. Feeding system: Manufacturer: SINEX Type: MU 75 6500 Power: 2 x 3 kW Output conveyor 1: Manufacturer: RMIS Lhsdjyy Aa Tjpfx Akmen Output conveyor 2: Manufacturer: ARVAL

Condition: ready for operation (used), Year of construction: 1996, travel distance X-axis: 2,000 mm, travel distance Y-axis: 800 mm, travel distance Z-axis: 800 mm, spindle speed (max.): 2,500 rpm, Heidenhain TNC 407 control unit Table: 2000 x 700 mm Travel: 2000 x 800 x 800 mm Spindle: SA 50 Maximum spindle speed: 2500 rpm Weight: 10000 kg Lhodpfjzbrkpox Akmon