Used Alfa Laval Avnx 4055 Extended Bowl 10Mc/H for sale (57,988)

Condition: ready for operation (used), 30 kw main drive 3250 rpm 1.2 kg /dcm. exelent conditions Dsdjx Aurkopfx Ailocn

Condition: used, Year of construction: 1994, Available from May Name: Used mobile sludge dewatering system in container Manufacturer: Alfa Laval Type: AVNX 919 Year built: 1994 Max. bowl speed: 3.250 rpm Djdeyxl R Eepfx Ailocn Material: Stainless steel Inner diameter drum: 353 / 202 mm Permissible sediment density: 1,2 kg / dm3 Dimensions: L 7.500 x W 2.450 x H 2.550 mm Empty weight: Approximately 6-7 tons Technical doc.: Yes Message: Available from May Accessories: Container, polymer plant, feed pump, control cabinet, macerator, discharge conveyor Condition: Second hand Price: On demand

Condition: excellent (used), functionality: fully functional, Alfa Laval / Tetra Pak Cream Pasteurization Line Alfa Laval / Tetra Pak Cream Pasteurization Line | Piston Pump, Buffer Tank, Flowmeter, Pasteurizer Complete cream pasteurization line from renowned manufacturers Alfa Laval and Tetra Pak, equipped with high-quality pumps, valves, flowmeters, and control cabinets. The line is designed for hygienic and efficient cream pasteurization in the dairy industry. Capacity: 35,000 liters/hour Main components of the line: 1. Circumferential Piston Pump Manufacturer: Alfa Laval Type: DURACIRC 73 Serial Number: E256143 Year of Manufacture: 2021 Dimensions: 1600 × 600 × 800 mm Included: various valves and stainless steel filter housing 2. Stainless Steel Buffer Tank Tank dimensions: Ø 1100 × 1700 mm Total dimensions: Ø 1200 × 2900 mm 3. Alfa Laval Valves, Type: Unique SSV (6 pcs.) High-quality single seat valves for food applications 4. Flowmeter Manufacturer: Endress + Hauser Model: Promag P / Promag P Dimensions: 200 × 200 × 350 mm High-precision flow measurement for food-grade liquids 5. Centrifugal Pump Manufacturer: LKM Type: LKH 20/155 Power: 5.5 kW Production Number: 20-02319 Dimensions: 700 × 380 × 400 mm Stainless steel construction, suitable for CIP operation 6. Valve Manufacturer: Armaturen AG Type: MA9.31A6 5S Po Dimensions: 600 × 400 × 400 mm 7. Cream Pasteurizer Manufacturer: Alfa Laval / Tetra Pak Type: C10-SH Serial Number: 30104-38526 Year of Manufacture: 2003 Capacity: 1311 liters Operating parameters: Operating pressure (PS): 0 / 20.0 bar Test pressure (PT): 28.6 bar Temperature range (TS): 0 / 130 °C Dimensions: 5000 × 800 × 2200 mm High-efficiency heat exchanger system ensuring stable pasteurization 8. Centrifugal Pump Dcsdpfxextu Ugo Ailjn Manufacturer: Pomac Type: CP29068/230 X 15 Serial Number: 22 818 Year of Manufacture: 12/2011 Capacity: 45 m³/h Power: 15.0 kW Dimensions: 950 × 400 × 500 mm 9. Nocado Valves (5 pcs.) Process valves for food applications 10. Control Cabinets Manufacturer: Eldon and IPBE Dimensions: 400 × 230 × 770 mm 1000 × 300 × 1000 mm The Alfa Laval / Tetra Pak Cream Pasteurization Line is a complete industrial solution with a capacity of up to 35,000 l/h, designed for high hygiene, precise process parameter control, and maximum reliability. Ideal for dairies, cream and milk fat producers.

Condition: excellent (used), functionality: fully functional, Alfa Laval / Tetra Pak Buttermilk Pasteurization Line Complete buttermilk pasteurization line from renowned manufacturers Alfa Laval and Tetra Pak, equipped with a buffer tank, circulation pumps, process valves, flowmeter, and control cabinet. The system is designed for hygienic thermal processing of buttermilk in dairy plants. Capacity: 25,000 liters/hour Main components of the line: 1. Siersma Scheffers Stainless Steel Buffer Tank Serial number: Karnemelk Year of manufacture: 1995 Capacity: 1,000 liters Overall dimensions: Ø 1100 × 3000 mm Material: stainless steel (s/s) 2. APV Valves (4 units) High-quality process valves for food applications 3. Pomac Centrifugal Pump, type: CP19555 / 165 x 10 Serial number: 20080 Year of manufacture: 2007 Capacity: 30 m³/h Power: 5.5 kW Dimensions: 700 × 350 × 450 mm 4. Endress + Hauser Flowmeter, model: Promag H / Promag 300 Dimensions: 350 × 200 × 200 mm Provides precise measurement of liquid food products 5. Samson Valve Dimensions: 560 × 300 × 300 mm Application: flow and pressure regulation in process systems 6. Alfa Laval / Tetra Pak Buttermilk Pasteurizer, type: C8-K8M Serial number: 30107-33855 Year of manufacture: 2012 Capacity: 559 liters Operating parameters: PS: 16.0 bar PT: 22.9 bar TS: 120 °C Dimensions: 3200 × 550 × 1850 mm High-performance heat exchanger system optimized for buttermilk processing 7. Hovap Centrifugal Pump, type: HP-5032/170 Serial number: 33740 Capacity: 35 m³/h Dcjdpjxtvftsfx Ailjn Power: 7.5 kW Dimensions: 700 × 320 × 550 mm 8. IPBE Control Cabinet (s/s) Purpose: control and supervision of the buttermilk pasteurization line Dimensions: 620 × 230 × 770 mm The Alfa Laval / Tetra Pak buttermilk pasteurization line with a throughput of up to 25,000 l/h is a complete, integrated system for the thermal processing of dairy products. Use of components from Alfa Laval, Tetra Pak, Pomac, Hovap, Endress + Hauser, and APV ensures high reliability, durability, and process quality.

Condition: used, Year of construction: 1986, Alfa Laval Drehbürstensieb Dcedpfx Aez Ia D Teiljn

Condition: good (used), Year of construction: 2017, Item: LC-10549 – Alfa Laval pump LKH70-110kW Alfa Laval LKH-70 Centrifugal Pump – 110 kW Used Alfa Laval LKH-70 sanitary centrifugal pump, suitable for high-capacity applications in the dairy, food, and beverage industries. The pump is equipped with a large Ø280 mm impeller and a powerful 110 kW motor. Technical data: Manufacturer: Alfa Laval Dcedpezymx Defx Ailjn Type: LKH-70 Year: 2017 Serial No.: 215309 Motor power: 110 kW Frequency: 50 Hz Impeller diameter: Ø280 mm Inlet: approx. DN100 Outlet: approx. DN80 Maximum flow according to Alfa Laval performance curve: up to approx. 260 m³/h, depending on the required head and product characteristics. CE marked Hygienic stainless-steel design Suitable for pumping milk, dairy products, water, and other low-viscosity food products. Original Alfa Laval performance curves are available. Machine located in Denmark and available for sale.

Year of construction: 2008, condition: like new (used), We sell a package of 26 cooling systems - Alfa Laval brand evaporators, all of which work on the glycol cooling system. The systems are powered at 220V or 380V or have an interchangeable power supply system according to the user's needs. The year of manufacture of the systems is 2008. We can sell also piece by piece not only as a package upon request. Commercial unit coolers designed for use in small and medium cold rooms from 10 up to 400 m³. Models designed for easy maintenance with immediate access to inspection areas. This series is available as a DX evaporator and brine unit cooler. Finned coil - H(C)FC Inner grooved Cu tubing ø 12 mm, triangular tube pitch - Brine Smooth Cu tubing ø 12 mm, triangular tube pitch - Corrugated Alu-fins - Fin spacings 4, 5.5, 6, 7, 8, 10 and 11 mm. • 1 to 4 AC fans, ø 250 mm up to ø 500 mm, drawing through the coil. Fan motors 230V/50-60Hz/1ph or 400V/50-60Hz/3ph in two noise levels (H/L). Motors with dynamically and statically balanced external rotors, manufactured in accordance with VDE 0530/12.84. • Corrosion resistant materials: coil frame AluZinc, casing strong and durable sheet metal, powder-coated RAL 9002. • Hinged drip tray and side covers for easy installation and maintenance. • Sufficient space for mounting of expansion valve inside the casing. • Mounting brackets allow flush ceiling mounting. • Fitted with schräder valve on the suction connection for testing purposes. • Pumped system available on request. • Stickers indicate fan direction and refrigerant in/out. • Delivery in mounting position. Coolers are mounted on wooden beams. Installation can take place with the use of a forklift. 1 AlfaCubic series (BL, GL, RL) 2 Refrigerant system (E = dry expansion, W=water/glycol, Dedjg N Db Hepfx Ailjcn 3 Noise level (H=high, L=low) 4 Fan diameter (25=250, 35=350, 40=400, 50=500 mm) 5 Number of fans (1 to 4) 6 No. of tube rows (A=4, B=6, C=8) 7 Phases (S= single-phase, D= 3 phases Δ connection) 8 Motor voltage (230V, 400V) 9 No. of circuits 10 Packing (CR=crate) 11 Casing material (AP= powder coated, SS= stainless steel) 12 Defrost system (A= air, E= electric defrost, HG= hotgas) 13 Fin material/coating (AL=aluminium, EP= epoxy coated aluminium) 14 Fin spacing (4, 5.5, 6, 7, 8, 10 and 11 mm) 15 Tube material (Cu=copper) The evaporator coils of these units are high performance and are built-in 1/2 ”fluted copper tube and fin corrugated aluminium with gaps of 3.5, 6 and 8mm. The frame, made of aluminium sheet, is provided with protection collars. This frame has the application of thermostatic expansion valves. Regarding their exterior structure, they are manufactured in aluminium painted in high resistance RAL-9018 polyester colour. The vibrations in these machines are avoided thanks to the fact that their entire structure is compact and highly rigid. All its parts are easily removable for maintenance. These evaporators are fitted as standard with helical fans with high-performance protection grilles and are equipped with 315 or 350mm motors. diameter. Single-phase for 230V 50Hz, with a degree of protection IP-54, with external rotor and low consumption. All motors are connected to a watertight general box, according to IP-55 regulations. Finally, defrosting is carried out with 230V electric heaters built in armoured stainless steel tubes. Its vulcanized ends avoid derivations and are inserted inside the battery and the tray. They are connected to a watertight junction box. Application: Lo

Condition: ready for operation (used), ALFA LAVAL VELVES COMPLETE PROCESSING SMART UNIT WITH CONTROLL BOX Dcjdpfxjz Hwhte Ailen YOM 2015 30 VELVES IN COMPLETE EXCELLENT CONDITION The unit is designed for the automatic safe separation of product flows, the management of different product streams, and the safe cleaning of one line without halting production on the other.

Condition: used, ALFA LAVAL Separator Type: MRPX 318 HGV-74C / 88-1005-01-00 Manufacturing No.: 2969862 Worm Wheel Shaft: 1420–1500 rpm Tachometer: 1420–1500 rpm Revolution Counter: 110–125 rpm Alfa Laval MRPX 318 HGV-74C self-cleaning hermetic separator, complete stainless steel unit in good condition (dismantled). Manufacturing No.: 2969862 Product No.: 88-1005-01-00 Technical Details: - Bowl diameter: approx. 318 mm - Speed: approx. 8,000 rpm - Motor: approx. 22 kW - Capacity: approx. 15,000 – 25,000 L/h (depending on product) - Worm wheel shaft: 1420–1500 rpm - Tachometer: 1420–1500 rpm - Revolution counter: 110–125 rpm - Self-discharging (HGV type) Ideal for milk, whey, juice, or other liquid-solid separation in the dairy or food industry. Clean, complete machine ready for operation or integration into a production line. Location: Denmark Djdpfx Aioxqm Rnolocn Condition: Used / tested Price: Upon request Inspection: Possible by prior arrangement

Condition: used, - Flat bottom tank with 2% slope - Brand : ALFA LAVAL - Total capacity : 30200 liters - Material : 316 L stainless steel - Interior finish : Cold rolled - Exterior finish : Cold rolled - Temperature controlled Djdpfx Asw Ngqtsiljcn ROOF - Conical - 1 off-center chimney at the front Ø 200 mm - 2 stainless steel flags - 1 thermometer - 6 lifting rings RING - 1 oval door 310×420 mm - 1 partial drain valve DN 65 - 1 connection for level sensor BOTTOM - 2% sloped plate with drain - 1 total drain valve with plug DIMENSIONS - Diameter : 2800 mm - Total height : 6000 mm - Ferrule height : 4800 mm - Conical upper dome : 500 mm - Chimney : 300 mm

Condition: used, Year of construction: 1996, Item: AL-010188-Alfa Laval Separator MRPX314HGV-74C Djdexqqqlepfx Ailscn Alfa Laval MRPX 314 HGV-74C Milk Clarifier Separator Pre-owned Alfa Laval MRPX 314 HGV-74C self-cleaning clarifier separator in stainless steel construction. Manufactured by Alfa Laval Separation A/S, Søborg, Denmark. Complete unit in good used condition – ideal for clarification of milk or other low-solids dairy liquids. Technical Details Type: MRPX 314 HGV-74C Manufacturing No.: 2969923 Product No.: 881007-01-00 Bowl speed: approx. 8,000 rpm Drive motor: approx. 11 kW Operation: self-cleaning (automatic sludge discharge) Material: acid-resistant stainless steel (AISI 316 L) Bowl volume: approx. 6 L Capacity: up to 10,000 L/h for milk clarification Design: hermetic bottom feed with paring-disc liquid outlet Features • Continuous separation of milk and whey with minimal product loss • Gentle, hermetic feed system – prevents air entrainment and foaming • Automatic solids discharge system • Includes complete bowl assembly: - Top Part No.: 538544-80 - Bowl No.: 537872-80 - Bottom Part No.: 537503-64 Condition Machine disassembled, cleaned, and stored indoors in Denmark. Available for inspection by appointment. Price Price on request (EXW Denmark)

Year of construction: 2014, condition: ready for operation (used), machine/vehicle number: 5125781, Alfa Laval ALDEC 45 Decanter Centrifuge – For Sale Alfa Laval ALDEC 45 industrial decanter centrifuge in very good working condition. The machine has been well maintained and is suitable for continuous solid-liquid separation applications. Key Specifications: Manufacturer: Alfa Laval Model: ALDEC 45 Year: 2014 Machine / Serial No.: 5125781 Maximum Bowl Speed: 4,200 rpm Main Motor: Approx. 22 kW Back Drive Motor: Approx. 5.5 kW Bowl Diameter: Approx. 360 mm Processing Capacity: Approx. 3–15 m³/h, depending on feed characteristics and separation requirements Continuous industrial operation Heavy-duty stainless steel construction Dcodpfx Aszu S Uysilen Location: Türkiye Condition: Very good, ready for operation Suitable for various industrial separation applications, including wastewater treatment, sludge dewatering, chemical processing, food processing and other solid-liquid separation processes. The machine is available for inspection. Additional photos, technical details and videos can be provided upon request.

Condition: good (used), Year of construction: 2023, Alfa Laval LKH-UP70 Centrifugal pump Serial: 298034 Dedpfxsu N Hz Se Ailjcn 2023, Stainless centrifugal pump, 22Kw motor, 3Ph

Condition: excellent (used), ALFA LAVAL CAF 2H/1 – Double-Head Aseptic Filler – Stainless Steel ALFA LAVAL CAF 2H/1, a 2-head aseptic filler, designed for the sterile filling of liquid, semi-liquid, and viscous food products into large-format aseptic packaging within industrial processing lines. The dual filling head configuration allows operation with two stations, facilitating process continuity and increasing operational flexibility. This type of equipment is especially suitable for packaging pre-sterilized products that must be maintained under aseptic conditions until sealing. Its stainless steel construction, protected filling zones, and automatic control system allow it to be integrated with sterilizers, aseptic tanks, and complete processing lines for fruits, tomatoes, and other food products. MAIN FEATURES -Manufacturer: ALFA LAVAL -Model: CAF 2H/1 -Type: Automatic aseptic filler -Number of heads: 2 Dcjdpfx Aezxk Tpsilsn -Dual filling station configuration -Product filling under aseptic conditions -Designed for pre-sterilized product -Automatic process control system -Sanitary product circuits -Construction primarily in stainless steel -Integrated process instrumentation and valves -Central control panel -Closed filling zones with safety guards -Roller conveyors for handling the packaging -Designed for industrial operation -Integrable into complete aseptic processing lines PROCESS The ALFA LAVAL CAF 2H/1 receives the product that has already undergone sterilization and guides it to the filling heads, maintaining the required hygienic conditions during filling. The packaging is positioned at the corresponding station and connected to the filling system, with the product transferred within a protected and controlled zone. Once filling is complete, the packaging can be removed and replaced with another to continue production. The 2-head configuration is particularly useful for maintaining an efficient workflow during packaging changeover operations. APPLICATIONS Especially suitable for processors of tomatoes, fruits, and vegetables, as well as manufacturers of purees, pulps, concentrates, juices, and sauces that need to package sterilized products for storage or distribution. Depending on the installed configuration, it can be used with aseptic bags in drums, bins, or other industrial containers. It can be integrated with aseptic sterilizers, buffer tanks, sanitary pumps, CIP systems, and UHT lines. Machine available for inspection. Additional technical information, dimensions, additional photographs, or videos can be provided upon request.

Condition: reconditioned (used), Fully refurbished and tested. Very good condition. Complete with tools for bowl Dcodsuccrkjpfx Ailon cyclone foundation plate vibration damping feet owm - operating water module controlcabinette (not tested or reconditioned)

Condition: excellent (used), functionality: fully functional, Complete Industrial Ammonia Refrigeration System (R717) A complete refrigeration system based on ammonia (R717) refrigerant, designed for industrial applications in food processing plants, cold stores, freezing facilities, and high-performance process installations. The installation includes compressor units, pressure vessels, heat exchangers, circulation pumps, and control panels. Main system components: Ammonia separator vessel Manufacturer: Retech Refrigeration Technologies A/S Type: PSH-0820 Number: 346601 Year of manufacture: 1994 Capacity: 1,092 l Design pressure: -1 / +22 bar Test pressure: 29 bar Refrigerant: R717 Djdpfoydqpvox Ailscn Equipment: 2 ammonia pumps Dimensions: 2,700 × 1,300 × 2,400 mm Condenser / Heat exchanger (Shell & Tube Condenser) Manufacturer: Sabroe Refrigeration Type: COSB 411904 Year of manufacture: 1994 Refrigerant: R717 Capacity: 134 / 61.9 l Dimensions: 2,500 × 800 × 2,300 mm Pressure vessel Manufacturer: Tortmans Capacity: 80 l Refrigerant: R717 Dimensions: 1,300 × 500 × 1,400 mm Intermediate cooler Manufacturer: Sabroe Refrigeration Type: DVEA 051411 Serial number: 92578 Year of manufacture: 1994 Max. working pressure: 26 bar Capacity: 340 / 10 l Refrigerant: R717 Dimensions: 1,000 × 800 × 2,300 mm Compressor unit (Sabroe skid): 2 × single-stage reciprocating compressor Sabroe Type: CMO 28 Serial numbers: 99008 / 99007 Year of manufacture: 1994 Capacity: 2 × 190 m³/h Pressure: 20 bar Refrigerant: R717 Sabroe separator Type: GHEA 0520 Serial number: 92419 Year of manufacture: 1994 Capacity: 600 l Alfa Laval heat exchangers: • M10-BWFDT – 37.2 l (year 1993) • M10-BWFGT – 67.4 l (year 1994) Overall skid dimensions: 3,700 × 2,500 × 2,050 mm Additional heat exchanger: Manufacturer: Alfa Laval Type: M10-BWFD Factory number: 30101-12952 Year of manufacture: 1995 Capacity: 104.0 l Design pressure: 25 bar Design temperature: 110°C Dimensions: 1,700 × 500 × 1,000 mm Grundfos circulation pumps (set): LP 80-125/124 – 50 m³/h (several units) LP 100-125/130 – 85 m³/h (2 units) LP 65-125/117 – 42 m³/h UPS 50-120 F – 3 × 400–415 V, 50 Hz Two-stage compressor: Manufacturer: Sabroe Refrigeration Type: TSMC 108 L Serial number: 99112 Year of manufacture: 1994 Refrigerant: R717 Capacity: LP – 276 m³/h Pressure: 18 bar Dimensions: 2,200 × 1,100 × 1,550 mm Control panels (3 units): 2 × panel with Siemens touchscreen – 1,200 × 500 × 2,200 mm Sabroe ammonia plant control cabinet – 2,000 × 500 × 2,300 mm Auxiliary cabinet – 800 × 300 × 800 mm

Condition: excellent (used), type of input current: three-phase, input voltage: 400 V, input frequency: 50 Hz, Complete discstack separator. Dcsdpfx Aieucct Ijlsn

Condition: good (used), Name: Replacement Rotor for Alfa Laval Manufacturer: Alfa Laval Type: ALDEC 506 Year built: - Inner diameter drum: 450 mm Interior drum length: 1.240 mm Dcjdpsza Dt Tofx Ailsn Material: Stainless steel Dimensions: L 1.930 x W 450 x H 450 mm Empty weight: 1.000 kg Technical doc.: No Condition: Used-good Price: By request

Condition: good (used), Alfa Laval LKH70 Centrifugal pump Dcedpfx Aju N Hxdoilon Serial: 49700 Stainless centrifugal pump, 22Kw motor, 3Ph

Condition: good (used), Alfa Laval LKH70 Centrifugal pump Serial: 39398 Stainless centrifugal pump, 30Kw motor, 3Ph Dcjdpfx Asu N Hv Noiljn

Condition: good (used), Alfa Laval LKH70 Centrifugal pump Serial: 83321 Dcedpfou N Hybsx Ailsn Stainless centrifugal pump, 30Kw motor, 3Ph

Year of construction: 2012, condition: excellent (used), Alfa Laval Centrifugal pump Type LKH 85/240, 25,0 kW , Stainless Steel. Used! Good condition! Dodpehck S Ejfx Ailocn Inlet: 6" - Outlet: 6"

Condition: used, Year of construction: 2009, The *Alfa Laval M10-MBASE* is a compact and highly efficient plate heat exchanger, designed for demanding applications in the beverage and food industry, chemical processing, and general heating and cooling duties. *Technical Specifications* *Type:* M10-MBASE *Heat transfer area:* 2.6 m² *Plate material:* Stainless steel Alloy 316, thickness 0.50 mm *Gasket material:* NBRFF Clip-On (Nitrile rubber) *Plate pack thickness:* 63 mm *Total weight:* 232 kg *Total volume:* 13 liters *Dimensions:* Height 672 mm, width 618 mm, depth 530 mm *Connection standard:* DIN NW100 *Bolts:* M20 Dodsz Iavpjpfx Ailecn *Expandable:* up to 17 additional plates *Operating Data* *Design pressure:* 10 bar *Test pressure:* 14.3 bar *Design temperature:* up to 120 °C *Minimum temperature:* 0 °C *Typical flow examples (according to datasheet):* Wine: 2,000 L/h (heating 12 → 17 °C, Δp = 47 kPa) Hot water: 2,000 L/h (cooling 30 → 24 °C, Δp = 22 kPa) Fruit juice: 240 L/h (heating 21 → 75 °C with 90 °C hot water, Δp ≈ 40–50 kPa) *Design Features* *Plates with parallel flow channels* ensure high efficiency and low pressure drop. *Clip-on gaskets* for easy maintenance and cleaning. *Robust frame and pressure plate construction* with M20 tightening bolts (length 360 mm). *Flexible capacity expansion*, up to 17 additional plates can be installed. *User-friendly assembly* with clear A/B plate markings. *Typical Applications* Beverage pasteurization (e.g., wine, juice, beer) Hot water and cooling water circuits CIP cleaning systems General process heat transfer in industrial applications

Condition: ready for operation (used), Further information will follow. Dcodpoq Aax Isfx Ailjn Please contact us if you are interested.

Condition: repair required (used), Year of construction: 2017, functionality: not functional, AS-07251-Alfa Laval Clarifier Module 10 m3/h ALFA-LAVAL PURE SOX (SWPX 810 SGV-34CGL) CLARIFIER MODULE, 316SS. Capacity min. 10,000 L/H Offering 4 identical units INCOMPLETE! Only for spare parts (Machine without bowl) Max. bowl speed 7200 RPM, rated at 10,000 LPH, bowl volume 15 L, sludge capacity 9.4 L, liquid discharged under pressure, solids discharge pump with cyclone tank, 35 kW motor 460/3/60/1728 RPM, Pure SOx scrubber, unitized on a common skid with all valves, piping, control panel, tools, spares, and manual Year of Manufacture 2017 Dsdpew Ap I Ajfx Ailocn