Used Chiron Mill 1250 for sale (11,266)

Condition: excellent (used), Year of construction: 2020, Unique opportunity to purchase this high quality CHIRON 5-axis machining center for profiles. Built and first use in 2020. The spindle was replaced in June 2022 and currently has 4500 operation hours. Machine is in very good condition and it can be inspected under power upon appointment. Availability: on request Including: Chip conveyor (scraper type) Profile bar feeder for bar lengths up to 6 m, for guiding profiles up to Ø 212 mm Coolant system TPF 350 / FKA 900 Coolant through the spindle Pedpfx Aaoyt I Uhshera Fixed 3D probe Type TS 27 R – RENISHAW Renishaw RLP40Q probe system Cnc control SIEMENS 840D X-axis 730 mm Y-axis 400 mm Z-axis 425 mm Maximum spindle speed 15,000 rpm Maximum torque 140 Nm Drilling capacity Ø 42 mm Thread tapping M30 Tool magazine capacity 20 tools Tool taper DIN 69893 HSK A63 Maximum tool diameter 65 mm Milling capacity 500 cm³/min in E355 steel Full technincal specifications in the attached document. Optional: ARMIN automatic robot cell (2024)

Condition: excellent (used), Year of construction: 2002, CHIRON FZ 15S with 4 axis in Perfect Condition Machine can be inspected any time under power Podjrgqu Hspfx Aahera

Condition: good (used), Single Head Capstan Block Wire Drawing Machine Maximum Inlet Wire's Diameter: 30 mm Prodpfx Ajt Ixkzoahoa

Condition: used, functionality: fully functional, machine/vehicle number: D20E/7694, Offer Number: D20E/7694 Machinetype: multiple wire drawing machine - dry Make: SKET / MILL Type: 8 BLOCK Constr. year: inlet wire diameter: 6,5 mm finished wire diamter: 1,6 mm number of drafts: 8 diameter of capstan: 550 mm and 650 mm Prodpfx Aaswi S Ixjhsa speed -meters/sek: 8-12 Location: Europe

Condition: excellent (used), Year of construction: 2008, functionality: fully functional, travel distance X-axis: 730 mm, travel distance Y-axis: 400 mm, travel distance Z-axis: 425 mm, rapid traverse X-axis: 60 m/min, rapid traverse Y-axis: 60 m/min, rapid traverse Z-axis: 60 m/min, torque: 90 Nm, controller manufacturer: Siemens, controller model: 840D PL, overall weight: 10,000 kg, spindle speed (max.): 12,000 rpm, coolant supply: 25 bar, number of spindles: 1, number of slots in tool magazine: 20, Equipment: chip conveyor, documentation/manual, rotational speed infinitely variable, We are Chiron experts. The machine is currently being partially overhauled and is in very good condition. If a probe or another option is needed, we can gladly provide it for an additional charge. FZ15W with 4th and 5th axis Machine dimensions: approx. 4200mm x 2400mm Travel range -X = 730mm -Y = 400mm -Z = 425mm Pedpfowpcfuex Aahora Control: 840D Powerline Main spindle: -Speed: 12,000 rpm -Tool holder: SK40 -Torque: max. 90NM Tool changer -Tool places: 20 Workpiece changer -Peiseler table with Afrocontroller Chip conveyor Coolant system with internal and external cooling Hydraulic clamping device Complete documentation available Geometry tip-top HS runout 0.008mm QC20 measurement 12.6µm (Manufacturer's tolerance 18µm, new machine 23µm, used machine) The machine can be inspected under power.

Condition: good (used), Year of construction: 2000, Chiron FZ 12 W pendulum table Year of manufacture: 2000 Control: Siemens Sinumerik 840 D travel: X 550 / Y 300 / Z 425 spindle speed: 11000 / min spindle mounting: SK 30 Predpfx Ajmp T Nisahea Power: 10 kVA weight: 4000 kg Condition: Used, ready for operation, without rifle power

Condition: like new (used), 1 unused universal vertical milling head, suitable for an ORADEA / EURO-MILL FUS 32 Design: “MAHO”, ISO 40 shank, quill stroke 100 mm, designed drive power approx. 3-4 kW, max. speed 2000 rpm, … Optional accessories: Prjdpfxeddtwbs Aahja - Multiplier, gear ratio 1:4, ISO 40 shank Price: EUR 499.00 - Attachment for automatic feed device for the vertical milling head quill, “MAHO” system, 6 feeds 0.02 - 0.2 mm/rev Price: EUR 1,880.00 - Cross milling head, additional head for the vertical milling head with spindle taper ISO 30, rotatable, 360 degrees Price: EUR 585.00 plus statutory VAT. Siegfried Volz Werkzeugmaschinen Rüschebrinkstr. 151-153 DE - 44143 Dortmund - Wambel / Germany

Year of construction: 1962, condition: good (used), machine/vehicle number: 162487, Suction capacity: 50 l/min Maximum operating pressure: 10 bar Compressor speed: 1400 rpm Tank: Prjdpfxsdyp R Ro Aahsa Operating pressure: 10 bar Capacity: 50 l

Condition: used, Rotary indexing thread tapping machine, 8-station rotary table. 1 inspection station, 1 vertical and 1 horizontal thread tapping unit. With guide bush 1 mm pitch Chiron, thread tapping unit with guide bush 0.7 mm pitch, M4. One discharge station, coolant system. Prsdpfxoyl Ntpe Aahoa

Condition: good (used), CHIRON FZ 08 KS Magnum is a 5‑axis machining center engineered for precision, high accuracy and reliable production. Travels X450×Y270×Z310 mm; drilling 12 mm; tapping M8. Tool magazine 24 pos., tool Ø max 47 mm (100 mm free), length 160 mm, tool wt 1.2 kg. Spindle HSK‑A40 0–36000 rpm; spindle motor 7 kW; rapid 75 m/min; 3×400V 50Hz; air 6 bar; installed power 14 kW (19 kVA); machine ≈3400 kg; dims 2308×1405×2447 mm. Features: tool‑break control, RS232, switch‑cabinet air‑con, status light. Delivers tight tolerances for automotive, aerospace, medical, watchmaking. Prsdpfjyxn Hcsx Aahoa

Condition: ready for operation (used), Year of construction: 2019, operating hours: 13,572 h, travel distance X-axis: 800 mm, travel distance Y-axis: 530 mm, travel distance Z-axis: 450 mm, controller manufacturer: FANUC, controller model: 31i-B5, spindle speed (max.): 12,000 rpm, spindle motor power: 22,000 W, tool weight: 8,000 g, number of axes: 5, This 5-axis CHIRON FZ18W was manufactured in 2019, featuring a FANUC 31i-B5 control system and continuous 5-axis control. It boasts a spindle speed of up to 12,000 rpm, a tool capacity of 70, and rapid traverse rates of 75 m/min. Ideal for complex machining tasks with its automatic pallet changer and dual rotary tables. If you are looking to get high-quality milling capabilities consider the CHIRON FZ18W machine we have for sale. Contact us for more information. • Number of axes: 5 (X, Y, Z + 2 rotary axes via pallet/rotary table) • Spindle: • AC spindle motor: 7.5 kW (100% duty), 22.0 kW (10% duty) • Max torque: 140 Nm • Taper: HSK-A63 (DIN 69893) • Drilling capacity: Ø 42 mm • Tapping capacity: M30 • Milling capacity: 500 cm³/min (steel E355) • Tool changer: • Type: Fully enclosed chain magazine • Capacity: 70 tools Prodpfx Aajyaz Emshja • Max tool Ø: 78 mm (160 mm with free adjacent positions) • Max tool length: 380 mm • Max magazine load: 240 kg • Tool change time: ~0.9 s • Chip-to-chip time: ~2.6 s • Feed rates & dynamics: • Rapid traverse (X/Y/Z): 75 m/min • Acceleration: 0.6 – 1.2 – 1.4 g • Drives: Direct digital drives with absolute measuring system • Machine functions/utilities: • Automatic washdown of work area and fixtures • Automatic centralized grease lubrication • Hydraulic unit: 200 bar • Compressed air treatment with filtration to 0.01 µm • Cooling unit for machine components • Measuring, monitoring, software: • FANUC 3D collision control • Tool monitoring and sister tool management • Electrical & interfaces: • Ethernet RJ45, USB, PCMCIA • Remote diagnostics: CHIRON remoteLine • Data monitoring & OEE: CHIRON dataLine • Compliance: CE Additional equipment (robots, automation, peripherals) • Automation/palletizing: • Automatic pallet changer IWV 0°/180° (change time ~3.5 s) • Rotary table ATU 200, 2 units • Positioning accuracy/repeatability: ±5″ • Max clamping torque: 1,200 Nm • Max load per side (APC): 250 kg • Max weight difference between pallets: 0 kg • Coolant and chip management: • Through-spindle coolant (predisposition) • High-pressure coolant system up to 30 bar • Coolant filtration: Drum filter TPF 350 S (50 µm) • Chip conveyor: Hinged belt • Coolant tank: 230 L • Pump: 250 L/min @ 1.4 bar • Probing/tool control: • Renishaw RLP40Q probe (predisposition) • Laser tool breakage control (Single F1000)

Condition: ready for operation (used), Year of construction: 2006, travel distance X-axis: 300 mm, travel distance Y-axis: 250 mm, travel distance Z-axis: 250 mm, controller manufacturer: FANUC, controller model: 21i-M series, spindle speed (max.): 10,000 rpm, spindle motor power: 3,700 W, number of axes: 3, This 3-axis CHIRON FZ08W was manufactured in 2006. A vertical CNC machining center featuring a Fanuc 21i-M series control, it offers X, Y, Z travels of 300 mm, 250 mm, and 250 mm respectively. It includes a table size of 550 x 300 mm, a spindle speed of 10,000 rpm, and a 12-position tool magazine. Consider the opportunity to buy this CHIRON FZ08W vertical machining center. Contact us for more information. • Condition: Used • Status: Good • Table size: 550 x 300 mm • Permissible load: 200 kg • Tool magazine: 12 positions Pjdpfxjygl D He Aahsra Additional equipment • Chip evacuator

Condition: ready for operation (used), Year of construction: 2014, operating hours: 24,209 h, travel distance X-axis: 730 mm, travel distance Y-axis: 400 mm, travel distance Z-axis: 360 mm, controller manufacturer: FANUC, spindle speed (max.): 12,000 rpm, spindle motor power: 7,500 W, number of axes: 4, This 4-axis CHIRON FZ 15 W Magnum HS vertical machining center was manufactured in 2014. Ideal for precision machining, it offers robust construction and reliability. Consider the opportunity to buy this CHIRON FZ 15 W Magnum HS vertical machining center. Contact us for more information. Prodpfjx D Nl Ujx Aahoa Machine Benefits Technical Machine Benefits • Number of tools per spindle: 48 • Tool holder: hsk-a 63 • Main spindle max. Torque: 95 nm Extra Information Machine still under power

Condition: used, Universal Tool Milling Machine ORADEA EURO-MILL STIMIN (Romania) Model FUS 32 Serial No. 5591 Year of construction: 2009 Travel: X: 560 mm, Y: 320 mm, Z: 400 mm Table size: 950 x 450 mm Tool holder (vertical head): ISO 40 - M16 Tool holder (horizontal spindle): ISO 40 - S20x2 (Deckel-compatible) Spindle speed: 25-2000 rpm, 18 steps Feed rate: 5-400 mm/min, 18 steps Rapid traverse: 1400 mm/min Main spindle motor power: 3 KW Pjdex Hkd Hjpfx Aahsra Electrical connection: 400 Volt, 50 Hz, 10 KW - 3-axis digital readout and linear glass scales by HEIDENHAIN, type ND 780 - Vertical milling head with quill, swivels +/- 90° - Quill travel at vertical head: 100 mm - Manual tool clamping with M16 thread - Counter bearing for horizontal milling with Ø 48 mm bearing bush - Central lubrication - Electrical control cabinet mounted on machine side - Coolant system integrated in machine base - Machine lamp - Including 2 tool holders - Operating manual with electrical diagram Required space (L x W x H): 1800 x 1600 x 1800 mm Weight: 1650 kg Very good condition

Condition: used, Machine has a defect in the main spindle CNC vertical machining center CHIRON type FZ 22 L high speed Machining center with CNC control FANUC Series 21-M serial no. 179-98 year of construction 1999 Travel X: 2000 mm, Y: 520 mm, Z: 630 mm Table size 2700 x 570 mm Table load 525 kg (per meter) Tool holder SK 40 (DIN 69871) Drilling capacity 35 mm Tapping capacity M27 Tool diameter 75 mm Diameter with free secondary positions 105 mm Tool change speed tool - tool 2.0 sec. Tool change speed from chip to chip 4.8 sec. Distance spindle nose - table 190 to 820 mm Spindle speed max. 10,500 rpm Main spindle drive max. 18.5 kW Mains connection 400 Volt, 50 Hz, 32 kVA - Pendulum machining over 2 work areas (partition wall missing) - CNC control FANUC Series 21-M - Tool changer 40-fold - IKZ = internal coolant supply through the spindle - Spray protection cabin with sliding door - Indirect measuring system - Coolant device with chip conveyor opposite - Electronic handwheel Transport dimensions of the basic machine L x W x H 4600 x 2470 x 2950 mm Prsdpoquhbgjfx Aahea Weight of the machine approx. 7.5 tons. Transport space requirement on the truck L x W x H 12000 x 2470 x 2950 mm Transport Weight on the truck approx. 10 ton. Weight 7.2 tons. good condition - machine has a defect on the main spindle

Condition: new, Year of construction: 2023, CHIRON DZ 26 P five-axis Double-spindle portal machining center Year of manufacture: 2023 Pjdpfeywu Dlox Aahsra Siemens 840D solution line NEW MACHINE! Travel paths: 1200x1100x800 mm Spindle distance: 1,200 mm Pallet size: 800x800 mm, interference circle 1200 mm 2 axes torque swivel device A-axis +/- 120° C-axis double Tool changer: 2x36 positions, HSK-A 63 5-axis milling package Chip conveyor Coolant system KF 400, 30 bar internal coolant supply with recooling Oil mist extraction Clamping hydraulics up to 200 bar Measuring probe Tool breakage monitoring Automatic door Loader interface And much more.

Condition: used, Year of construction: 2002, functionality: fully functional, machine/vehicle number: 213-65, Verfahrweg X-Achse: 300 mm Verfahrweg Y-Achse: 250 mm Verfahrweg Z-Achse: 250 mm Werkstückgewicht (max.):1 kg Anzahl der Werkzeugplätze：12 Pos Steuerungshersteller:Fanuc Steuerungsmodell: 21m 3x / 2x 21iM Kühlmittelzufuhr:1 bar Anzahl der Spindeln:1 Eilgang Z-Achse: 60 m/min Eilgang X-Achse: 40 m/min Eilgang Y-Achse: 40 m/min Drehzahl (max.): 10.000 U/min Werkstückdurchmesser (max.): 63 mm 4.Achse Peiseler AWU P100 die Maschinen wurden 2016 durch Chiron CMS überholt Ausstattung: Dokumentation/Handbuch, Drehzahl stufenlos einstellbar Prodpfxsywmzie Aahsa Die Maschine befindet sich unserer Einschätzung nach in einem guten gebrauchten Zustand und kann nach Terminvereinbarung unter Strom besichtigt werden.

Condition: excellent (used), Year of construction: 2006, operating hours: 14,300 h, functionality: fully functional, machine/vehicle number: 414-46, Year 2006 with Fanuc Series 18i-MB5 Country of manufacture: CE - Germany Net machine weight: 3,400 kg Dimensions: 185x259x250 cm TECHNICAL SPECIFICATIONS Travel X / Y / Z: 450 / 270 / 310 mm Acceleration X / Y / Z: 0.7 / 0.7 / 1.0 g Rapid traverse X / Y / Z: 40 / 40 / 60 m/min Spindle speed max.: 15,000 rpm Tool interface: HSK A 40 Milling capacity in St 60: max 60 cm3/min Drilling capacity in St 60: max Ø 16 mm Threading: up to M12 Tool magazine / positions: 24 – special version with 40 on this machine Tool change time: approx. 0.8 sec Chip-to-chip time: approx. 2.2 sec 5-axis version NC rotary tilting table: +/- 100° Rotary plate diameter: 100 mm Grid drill pattern: M6 x 50 mm 4th axis speed: 40 rpm 5th axis speed: 60 rpm Direct measuring system for 4th and 5th axes: +/-20’’ / +/-20’’ Distance spindle nose – table surface: 170 – 450 mm Maximum workpiece weight: 6 kg Pedpfexqmwbox Aahjra Technical information is provided without engagement and subject to errors or omissions.

Condition: ready for operation (used), Year of construction: 1997, functionality: fully functional, machine/vehicle number: 194-03, travel distance X-axis: 2,000 mm, travel distance Y-axis: 400 mm, travel distance Z-axis: 425 mm, table width: 450 mm, table length: 2,280 mm, TECHNICAL DETAILS Travel X-axis: 2,000 mm Travel Y-axis: 400 mm Travel Z-axis: 425 mm Pjdpfx Aaoyhnfcjhsra Total number of axes: 3 Table length: 2,280 mm Table width: 450 mm Number of T-slots: 3 T-slot spacing: 150 mm T-slot width: 18 mm Spindle speed: 10,500 rpm Number of tools: 20 Tool diameter: 65 mm Diameter with free adjacent slots: 180 mm Max. tool length: 220 mm Max. tool weight: 8 kg MACHINE DETAILS Control: SIEMENS SINUMERIK 810 M Connection: 50 Hz 3x 400 Volt Spindle motor: 18 kW Total power requirement: 31 kVA Dimensions & Weight Dimensions (L x W x H): 4,000 x 3,010 x 3,040 mm Machine weight approx.: 7,200 kg EQUIPMENT Coolant system Chip conveyor Electronic handwheel

Condition: repair required (used), Year of construction: 2001, functionality: limited functionality, travel distance X-axis: 2,000 mm, travel distance Y-axis: 450 mm, nominal power (apparent): 37 kVA, controller manufacturer: Sinumerik 840 D, overall weight: 7,000 kg, spindle speed (min.): 10,000 rpm, Equipment: chip conveyor, - SK 40 tool holder - The machine is currently idle. - The buffer battery is empty, which has caused the connection to the PLC to be interrupted. The machine can be inspected under power at any time. Podpjywpa Iofx Aahjra

Condition: good (used), Year of construction: 2006, Spindle 12000 TR:MN CN SIEMENS SINUMERIK 258-38. Number of hours on the counter: 85 642 hours total machine power 30 KVA stroke X 300 mm, stroke Y 400 mm, stroke Z 425 mm spindle speed 12000 rpm Prjdpjn D D Nhefx Aahsa travel speed 60m/min tool attachment SA40 2 UNITS AVAILABLE

Condition: used, Chiron FZ18W Magnum rotopallet 1999 CNC Siemens 840D X 630 Y 400 Z 425 tables (2) 850x450mm 20 tools ISO 40 / 18kW / 140 Nm Prsdpfx Aashkkwbjhea 40m/min HAWE hydraulics automatic doors swarf conveyor 6 ton 3,6 x 2,25 x 2,85 machine can be inspected under power in our warehouse Mimu Machine Tools (Italy)

Condition: repair required (used), Year of construction: 2019, functionality: fully functional, In operational condition: MAXMILL NVM1166 - HISION VMU1100 - HISION V180 Prodpfxoy Iyw Se Aahsa

Year of construction: 2006, operating hours: 82,068 h, condition: good (used), functionality: fully functional, machine/vehicle number: 258-22, Moving column machine in steel-concrete composite construction with workpiece changing device. Low-maintenance model from the world-renowned manufacturer CHIRON. Predpsmt A Ivefx Aahsa Double spindle - vertical - machining center incl. chip conveyor KNOLL AE 1058.009 and a compound unit (already dismantled). Prescribed maintenance intervals for plant and plant parts have always been observed. TECHNICAL DETAILS Drilling capacity in steel: 60: 2 x 6 36 mm (with insert drill) Guides: with long term grease lubrication speed range: 20-12.000 rpm CNC control: SIEMENS 840D spindle distance in X-axis: 250 mm X-axis: 300 mm Y-axis: 400 mm Z-axis: 425 mm (with variable tool change plane) rapid traverse speed 60 m/min in X-, Y- and Z-axis Main spindle drive: 1 piece with 2 AC motors power at 100 % ED: 9,5 kW power at 15 % ED:14,0 kW Drive: digital direct drives with indirect absolute path measuring system (no reference point approach) tool places: 212 Tool diameter: max. 65 mm Tool diameter with free neighboring places: max. 175 mm Tool weight: max. 2.5 kg (5.0 kg at 2 stations) Tool change time: approx. 0.9 s (depending on control) Chip-to-chip time: approx. 2.1 s (control-dependent) Workpiece changing device: 0 / 180 Tool holder: HSK A 63 1 MACHINE DETAILS type of current: 3 / N / PE - 50/60 Hz operating voltage: 400 V power: 44 kVA rated current: 63 A Coolant system HL 450 / 900 LATE CONVEYOR Manufacturer: KNOLL Type: AE 1058.009 Year of manufacture: 2006 EQUIPMENT - CHIRON maintenance manual on screen - Operating hours and piece counter - Socket 230 V - Socket for portable mini handwheel - Control cabinet cooler as door-mounted unit - Signal lamp - splash guard cladding - chip conveyor - mini control panel - Rinsing gun - Central pneumatic connection - Fixture flushing - 70 bar HP pump - 1 internal cooling package with suction unit - Fully enclosed working chamber - Extraction unit with air cleaner - Extraction capacity 800 m³/h - CHIRON mold life monitoring with: - Automatic loading door of the splash guard - "opening" and "closing", actuation via two-hand start release - Integrated IWW 0/180° workpiece changing device - Chiron Lasercontrol Single F500 - Ethernet connection RJ45 at the control cabinet instead of in the control panel - Pneumatic and hydraulic connections - Central hydraulic and pneumatic connection prepared for max. 20 connections, 6 connections are designed including connection couplings, 4 of them for hydraulics, max. 210 bar and 2 for uncontrolled pneumatics. - 4 Additional hydraulic connection(s) - Hydraulic power unit - 2 Hydraulic aggregate extension for further clamping circuits

Condition: new, functionality: fully functional, power: 55 kW (74.78 HP), Year of construction: 2026, Ball Mill for Powder and Mining Plant: Structure, Function, and Technical Details A ball mill is a key grinding machine widely used in mining, metallurgy, cement, chemical, and powder-making industries. It is designed to grind various ores and other materials into fine powder through impact and attrition between steel balls and the material inside a rotating cylindrical shell. In mining plants, ball mills are essential for ore beneficiation, preparing materials for flotation, magnetic separation, or leaching processes. In powder production, they ensure uniform particle size and high surface area for further processing. Working Principle Prjdoq Nf U Ejpfx Aahsa The ball mill operates on a simple yet effective principle: as the cylindrical shell rotates around its horizontal axis, the grinding media (steel or ceramic balls) are lifted along the inner wall by centrifugal force and friction. When they reach a certain height, they fall freely, striking and grinding the material below. This repeated motion causes both impact and abrasion, reducing the material to the desired fineness. The grinding process can be performed in dry or wet conditions depending on the application. Structural Composition A standard ball mill consists of several main components: Feeding part: Equipped with a feeder or screw conveyor to ensure uniform material input. Discharging part: Can be grate type or overflow type, depending on the discharge method. Rotating part: The cylindrical shell made of steel plates, lined with wear-resistant liners. Transmission system: Includes motor, reducer, small transmission gear, and electrical control. Grinding media: Steel balls or ceramic balls of different diameters for efficient grinding. The internal liner design and ball size distribution are optimized to achieve maximum grinding efficiency and minimal energy consumption. Technical Details Typical Specifications: Feeding size: ≤25 mm Discharge size: 0.074–0.4 mm Capacity: 0.65–615 t/h (depending on model and material hardness) Cylinder speed: 18–38 r/min Power: 18.5–4500 kW Liner material: High manganese steel, rubber, or alloy steel Grinding media load: 30–45% of cylinder volume Operating Modes: Dry grinding: Suitable for materials that must remain moisture-free, such as cement clinker, limestone, and quartz. Wet grinding: Common in ore beneficiation, where water or slurry improves grinding efficiency and particle uniformity. Application in Mining Plants In mining operations, ball mills are used after crushing to further reduce ore size and liberate valuable minerals. They are integrated into grinding circuits with classifiers, hydrocyclones, and flotation systems. The ground material is classified by size, and oversized particles are returned to the mill for regrinding. This closed-circuit system ensures consistent product fineness and efficient energy use. Common Applications: Gold, copper, iron, and zinc ore grinding Cement clinker and slag processing Silicate and ceramic powder production Coal and mineral powder preparation Conclusion A ball mill is an indispensable piece of equipment in both powder production and mining beneficiation plants. Its ability to grind materials into fine, uniform particles makes it vital for downstream processes such as flotation, sintering, and chemical reactions.