Used Arburg Cylinder Kit for sale (10,616)

Condition: like new (used), Machine type: ARBURG 320 Hydronica 35 mm cylinder unit in bi-metal design, completely overhauled Screw including backflow preventer and tip, new 3 heating bands included Ijdpsy Nnilefx Ahyobc Technically inspected and ready for operation.

Condition: used, Year of construction: 2023, operating hours: 15,000 h, clamping force: 160 kN, displacement volume: 23 cm³, injection pressure: 2,500 bar, overall weight: 6,000 kg, screw conveyor diameter: 18 mm, terms of delivery: FCA Pegnitz delivery time: on request Ibedpfx Ahjzp R Izsyoc terms of payment: 100% prior to delivery

Condition: used, Year of construction: 2020, operating hours: 8,555 h, functionality: fully functional, clamping force: 1,500 kN, heating capacity: 19 kW (25.83 HP), pump power: 71 W, power: 53.5 kW (72.74 HP), input frequency: 50 Hz, input voltage: 400 V, input current: 90 A, We are offering this used ARBURG 470 C 1500-400 injection molding machine, manufactured in 2020, from ongoing production. Includes INTEGRALPICKER. Type: 470 C 1500-400 Machine No.: 254634 Year of Manufacture: 05/2020 Operating Voltage: 400 V, 50 Hz Control Voltage: 24 V Rated Current Motor/Heater: 71 / 19 A Total Current: 90 A Total Connected Load: 53.5 kW Pump Operating Hours: 8555 40 mm plasticizing cylinder set (without nozzle) Open nozzle 40 mm with internal thread for screw-in nozzle tips Internal thread up to injection unit 290: M 24 x 1.5 Internal thread from injection unit 400: M 36 x 2 Price: €48,000.00 Available from the end of December 2026. Iodpfszhar Hox Ahyebc If you have any questions or require further information, please send us a message or call us.

Condition: excellent (used), Year of construction: 2013, Arburg 520H 1500-800 e² / Hybrid machine / Production line with the Arburg Multilift H side robot Year of manufacture: 2013 Injection unit: Screw diameter: 55 mm Shot weight: 434 g Injection pressure: 1650 bar Dosing volume: 474 ccm Clamping unit: Clamping force: 150 t Tie bar spacing: 520x520 mm Platen size: 695x695 mm Ejector: electric Clamping unit: toggle Control system: SELOGICA - Touchscreen Additional equipment: Ibodpfx Ahez Ip Rvsyjc Hybrid machine: high-speed, energy-saving and very quiet Euromap 67 Robot interface Control with air valve Hydraulic core pull x 1 Control with hot runner system x 12 Injection unit hardened - bimetal Main motor of the machine - servo motor driven by inverter - energy saving The injection unit is driven by a servo motor, which is controlled by an inverter Machine with cylinder / battery with compressed nitrogen (additional charge for fast operation) Central lubrication Automatic tool height adjustment Kistler sensor - tool pressure control The injection molding machine was operated in a so-called "clean room", has additional protection against contamination and two vapor absorbers Side robot Arburg Multilift H 5-axis robot: Z-axis servo motor driven (electric); X, Y and B axes (rotation) pneumatic Safety package for robots Robot with adapter, conveyor belt with electric height adjustment, protective housing Purchase of the robot and the conveyor belt for an additional charge Dimensions: Weight: 6680 kg Length/Width/Height: 5.03x1.56x2.21 m All offered machines are started by our service technicians before sale. It is possible to obtain a video of the technical tests of the selected machine or to participate in live technical tests at our company in Łódź. Price: On request

Condition: excellent (used), Year of construction: 2012, Arburg 520S 1600-400/170 e² / Production line with Geiger robot Year of manufacture: 2012 Injection unit: Screw diameter: 35 mm Shot weight: 141 g Injection pressure: 2500 bar Dosage volume: 154 ccm Clamping unit: Clamping force: 160 t Tie bar spacing: 520 x 520 mm Platen size: 695 x 695 mm Ejector: hydraulic Clamping unit: hydraulic Control system: SELOGICA - touchscreen Additional equipment: 2K injection molding machine with rotary table and Geiger robot Very good technical condition Hybrid machine: energy-saving and very quiet Euromap 67 Robot interface Air valve x 4 Hydraulic core pull x 5 Control system with 12 hot runner zones Reinforced injection units – bimetallic Machine with two cylinders / batteries with compressed nitrogen (additional charge for fast operation) The machine features a built-in servomotor in the injection unit responsible for dosing the plastic Parallel movements Screw diameter in the vertical injection unit: ⌀30 mm - 77 g/PS Integrated Arburg brand conveyor belt and sorting flap Original Weber brand rotary table, highly precise – electrically driven (integrated inverter in the machine) Rotary table and robot available as an additional purchase Dimensions: Weight: 8140 kg Length/Width/Height: 4.81 x 1.84 x 3.45 m Isdpfx Aoz Ip Tdjhyjbc All offered machines are started up by our service technicians prior to sale. A video of the technical tests for the selected machine can be provided, or you can participate in live technical tests at our facilities in Łódź. Price: On request

Condition: excellent (used), Year of construction: 2016, Arburg 570H 2000-400 e² / Hybrid machine / Production line with Wittmann W823 robot Year of manufacture: 07.2016 Injection unit: Screw diameter: 40 mm Shot weight: 184 g Injection pressure: 2000 bar Dosing volume: 201 ccm Clamping unit: Clamping force: 200 t Tie bar distance: 570x570 mm Platen size: 795x795 mm Ejector: electric Ibedpfx Ahez Ip Tqoyjc Clamping unit: toggle Control: SELOGICA - Touchscreen Additional equipment: Machine in very good technical condition Hybrid machine: energy-saving and very quiet Operating hours: h in automatic mode Euromap 67 Robot interface Air valve x 5 Core pull control Air core pull x 3 Injection unit hardened – bimetal Main motor of the machine – servo motor driven by an inverter – energy saving The injection unit is driven by a servo motor, which is controlled by an inverter Proportional valve on the injection unit – precise injection Machine with cylinder / battery with compressed nitrogen (additional charge for fast operation) Central lubrication Automatic tool height adjustment Parallel movements Robot Wittmann W823 Year of manufacture: 2015 4-axis robot: 3 axes are driven by servo motors (electric): X, Y (telescopic), Z; Axis C - pneumatic Travel ranges in axes: X-550, Y-1000, Z-2500 Touch control panel Safety package for robot Robot with adapter, conveyor belt, protective housing Purchase of the robot and the conveyor belt at an additional cost Dimensions: Weight: 8550 kg Length/Width/Height: 5.25x1.71x2.21 m All machines offered are started by our service technicians before sale. It is possible to obtain a video of the technical tests of the selected machine or to participate in live technical tests at our company in Łódź. Price: On request

Condition: excellent (used), Year of construction: 2016, Arburg 570S 2200-290/100/100 / Production line with the Wittmann W823 robot / Operating hours: 20,499 h in automatic mode Year of construction: 2016 Injection unit: Screw diameter: 35 mm Injection weight: 132 g Injection pressure: 2000 bar Metering volume: 144 ccm Clamping unit: Clamping force: 220 t Distance between tie bars: 570x570 mm Size of the clamping platens: 795x795 mm Ejector: hydraulic Clamping unit: hydraulic Control system: SELOGICA touchscreen Additional equipment: 3-component injection molding machine, high speed Very good technical condition Operating hours: 20,499 h in automatic mode Euromap 67 Robot interface Air valve x 6 Hydraulic, needle core pull, controlled by a proportional valve x 4 Control unit with hot runners Hardened injection unit - bimetal Proportional valve on the injection unit - precise injection Machine with two cylinders / battery with compressed nitrogen (additional charge for fast work) The machine is designed for operation with an electric turntable. The machine has an inverter to control the servomotor in the rotary table and an interface for connecting the rotary table Parallel movements Screw diameter in the vertical injection unit: ⌀25 mm - 45 g/hp Screw diameter in the lateral injection unit: ⌀25 mm - 45 g/hp Wittmann W823 robot Year of construction: 2015 5-axis robot: 3 axes are driven by servomotors (electric); axis C and movement A Travel in axes: X-550, Y-1400 (telescopic), Z-3500 Touch control panel The safety package for robots Robot with adapter, conveyor belt and protective housing Purchase of the robot and conveyor belt for an additional charge Dimensions Weight: 10830 kg Length/width/height: 5.53x1.77x3.29 m Ibjdpfjz Iqaxox Ahyjc All offered machines are started by our service technicians before sale. It is possible to obtain a video of the technical tests of the selected machine or participate in live technical tests at our company in Łódź. Price: On request

Condition: excellent (used), Year of construction: 2012, Arburg 520H 1500-800 e² / Hybrid Machine / Production Line with Side Robot Arburg Multilift H Year of manufacture: 04.2012 Injection Unit: Screw diameter: 55 mm Shot weight: 434 g Injection pressure: 1650 bar Dosage volume: 474 ccm Clamping Unit: Clamping force: 150 t Tie bar distance: 520x520 mm Platen size: 695x695 mm Ejector: electric Clamping unit: toggle lever Control system: SELOGICA - Touchscreen Additional Equipment: Hybrid machine: high-speed, energy-saving, and very quiet Control system with air valve Core pull control Hot runner control x 12 Injection unit hardened - bimetallic Main drive motor - servo motor with inverter - energy saving Injection unit driven by servomotor controlled by inverter Machine equipped with cylinder / battery with compressed nitrogen (additional charge for fast operation) Ibsdpfx Ahjz Ip N Ejyoc Central lubrication Automatic mold height adjustment Kistler sensor - mold pressure regulation The injection molding machine was operated in a so-called "cleanroom," and is fitted with extra protective devices against contamination and two vapor absorbers Side robot Arburg Multilift H Year of manufacture: 2012 5-axis robot: Z-axis driven by servo motor (electric); X, Y, and B axes (rotation) pneumatically operated Robot safety package Robot with adapter, conveyor belt with electric height adjustment, safety enclosure Purchase of robot and conveyor belt at extra cost Dimensions: Weight: 6,820 kg Length/Width/Height: 5.03x1.56x2.21 m All offered machines are started up by our service technicians before sale. It is possible to receive a video of the technical tests of the selected machine or to participate in live technical tests at our facility in Łódź. Price: On request

Condition: used, Year of construction: 2013, operating hours: 55,929 h, clamping force: 160 kN, displacement volume: 23 cm³, injection pressure: 2,500 bar, overall weight: 6,000 kg, screw conveyor diameter: 18 mm, terms of delivery: FCA Pegnitz Iedjzp R I Iopfx Ahyebc delivery time: on request terms of payment: 100% prior to delivery

Condition: used, Year of construction: 2001, operating hours: 38,850 h, clamping force: 25 kN, displacement volume: 20 cm³, injection pressure: 1,810 bar, overall weight: 1,900 kg, screw conveyor diameter: 18 mm, terms of delivery: EXW (ex Works) delivery time: on request terms of payment: 100% prior to delivery Iodpsyt R S Aofx Ahysbc

Condition: excellent (used), Year of construction: 2011, Arburg 520S 1600-290/100 / Production line with Wittmann W823 robot / Operating hours: 20,181 h in automatic mode Year of construction: 09.2011 Injection unit: Screw diameter: 35 mm Injection weight: 132 g Injection pressure: 2000 bar Metering volume: 144 ccm Clamping unit: Clamping force: 160 t Distance between tie bars: 520x520 mm Size of the clamping plates: 695x695 mm Ejector: hydraulic Clamping unit: hydraulic Control system: SELOGICA touchscreen Additional equipment: 2K injection molding machine with rotary table and robot Very good technical condition Operating hours: 20,181 h in automatic mode Total number of operating hours: 28,473 h Euromap 67 Robot interface Air valve x 3 Hydraulic, needle core pull, controlled by a proportional valve x 2 Reinforced injection units - bimetal Proportional valves on injection units - precise spraying Machine with two cylinders / batteries with compressed nitrogen (additional charge for fast work) Parallel movements Screw diameter in the vertical spraying unit: ⌀25 mm - 45 g/hp Original turntable Purchase of the turntable for an additional charge Isdpfjz Ip Smox Ahyjbc Robot Wittmann W823 Year of construction: 2015 5-axis robot: 3 axes are driven by servo motors (electric); axis C and movement A Travel in axes: X-550, Y-1400 (telescopic), Z-3500 Touch control panel The safety package for robots Robot with adapter, protective housing Purchase of the robot for an additional charge Dimensions Weight: 6720 kg Length/width/height: 4.41x1.84x3.20 m All offered machines are started by our service technicians before sale. It is possible to obtain a video of the technical tests of the selected machine or participate in live technical tests at our company in Łódź. Price: On request

Condition: excellent (used), Year of construction: 2011, Arburg 520H 1500-400 e² / Hybrid Machine Year of manufacture: 2011 Injection unit: Screw diameter: 40 mm Shot weight: 184 g Injection pressure: 2,000 bar Dosage volume: 201 ccm Clamping unit: Clamping force: 150 t Tie bar spacing: 520x520 mm Platen size: 695x695 mm Ejector: electric Clamping unit: toggle lever Control: SELOGICA - Touchscreen Additional equipment: Hybrid machine: energy-efficient and very quiet Euromap 67 Robot interface Core pull control Control with 8 hot runner zones Injection unit hardened - bimetallic Main machine motor - servomotor driven by inverter - energy saving Injection unit driven by servomotor, control via inverter Machine equipped with cylinder/battery with compressed nitrogen (additional charge for fast operation) Central lubrication Parallel movements Priamus sensor - tool pressure regulation Dimensions: Weight: 6,010 kg Ijdpfxsz Ip I Uo Ahysbc Length/Width/Height: 4.67x1.56x2.21 m All offered machines are started by our service technicians prior to sale. It is possible to receive a video of the technical tests of the selected machine or to participate in live technical tests at our facility in Łódź. Price: On request

Condition: excellent (used), Year of construction: 2010, Arburg 470H 1000-400 e² / Hybrid Machine / Production Line with Arburg Multilift Select Robot Year of manufacture: 09.2010 Injection unit: Screw diameter: 40 mm Shot weight: 184 g Injection pressure: 2000 bar Dosage volume: 201 ccm Clamping unit: Clamping force: 100 t Tie bar spacing: 470x470 mm Platen size: 637x637 mm Ejector: electric Clamping unit: toggle lever Control: SELOGICA - Touchscreen Additional equipment: Hybrid machine: energy efficient and very quiet Euromap 67 Robot interface Air valve x 4 Hydraulic core pull x 1 Hot runner control x 12 Hardened injection unit - Bimetal Main motor of the machine - Servo motor with inverter drive - energy saving The injection unit is driven by a servo motor controlled by an inverter Machine equipped with cylinder/bottle with compressed nitrogen (additional load for fast operation) Central lubrication Integrated sorting flap Arburg Multilift Select robot 6kg transverse Year of manufacture: 09.2010 4-axis robot: 3 axes driven by servo motors (electric); C-axis - pneumatic Travel paths in axes: X-400, Y-600, Z-1800 Robot with adapter, conveyor belt, and safety enclosure Purchase of robot and conveyor belt at extra cost Dimensions: Weight: 5180 kg Length/Width/Height: 4.40x1.56x2.02 m All machines offered are started by our service technicians before sale. It is possible to obtain a video of the technical tests of the selected machine or to participate in live technical tests at our company in Łódź. Iedpfxez Ipyqs Ahysbc Price: On request

Condition: excellent (used), Year of construction: 2011, Arburg 520H 1500-400 e² / Hybrid Machine Year of manufacture: 2011 Injection unit: Screw diameter: 40 mm Shot weight: 184 g Injection pressure: 2000 bar Dosage volume: 201 cc Clamping unit: Clamping force: 150 t Tie bar distance: 520x520 mm Platen size: 695x695 mm Ejector: electric Clamping mechanism: toggle lever Control system: SELOGICA - touchscreen Additional equipment: Hybrid machine: energy-saving and very quiet Euromap 67 Robot interface Iedez Ip Nljpfx Ahyobc Air valve x 4 on the fixed platen side Air valve x 3 on the moving platen side Hydraulic core pull x 1 on the fixed platen side Injection unit hardened - bimetal Main motor of the machine - servo motor driven by inverter - energy-saving The injection unit is driven by a servo motor controlled by an inverter Machine equipped with cylinder/battery with compressed nitrogen (additional charge for fast operation) Central lubrication Parallel movements Automatic mold height adjustment Dimensions: Weight: 6550 kg Length/Width/Height: 4.67x1.56x2.21 m All machines offered are started up and tested by our service technicians before sale. It is possible to receive a video of the technical tests of the selected machine or to participate in live technical tests at our company in Łódź. Price: On request

Condition: used, Year of construction: 2012, operating hours: 69,990 h, clamping force: 320 kN, displacement volume: 154,314 cm³, injection pressure: 25,001,280 bar, overall weight: 14,500 kg, screw conveyor diameter: 3,550 mm, terms of delivery: FCA Pegnitz Ibedpfxoxl Hi Te Ahysc delivery time: on request terms of payment: 100% prior to delivery

Condition: excellent (used), Year of construction: 2009, Arburg 370S 700-100/100 / 2K machine / operating hours: 33.544 in automatic mode / very good technical condition Year of manufacture: 2009 injection unit: Screw diameter: 30 mm Iedpfx Aez Iq A Tshyobc injection weight: 65 g Injection pressure: 1390 bar Metering volume: 71 ccm Clamping unit: clamping force: 70 t tie bar distance: 370x370 mm size of clamping platens: 510x510 mm ejector: hydraulic clamping unit: hydraulic Control system: SELOGICA - touch screen Additional equipment: 2K machine Operating hours: 33.544 in automatic mode Euromap 67 Robot interface Air valve x 5 Hydraulic core pull x 2 Control with hot runners Reinforced injection units - bimetal Proportional valves on injection units - precise spraying Parallel movements The vertical injection unit - screw diameter fi 20 mm (29 g/hp) Machine with cylinder / battery with compressed nitrogen (additional charge for fast work) Machine with the built-in conveyor belt Arburg and original sorting flap There is a possibility to buy an original Weber turntable It is possible to change screw diameters in both injection units for the screw diameters recommended by the manufacturer Dimensions: Weight: 4440 kg Length/width/height: 3.48x1.58x2.97 m Drive: Pumps/motor: 15 kW Heating power: 4,9 kW Total power: 19,9 kW All offered machines are started by our service technicians before sale. It is possible to get a video of technical tests of the selected machine or participate in live technical tests in our company in Łódź. Price: Upon request

Condition: excellent (used), Year of construction: 2001, functionality: fully functional, clamping force: 150 kN, screw diameter: 18 mm, clearance between the columns: 220 mm, total length: 2,100 mm, total width: 800 mm, overall weight: 1,550 kg, Clamping force: 15t Year of manufacture: 2001 Injection unit 30 Screw diameter: 18 mm Pump motor power: 5.5 kW Cylinder heating band power: 3.9 kW Tool clamping unit 150 Clamping force: 15 t Distance between columns: 220 x 220 mm Weight: 1550 kg Footprint: approx. 2100 x 800 mm Control system: Selogica Ibsdpsz Egkuofx Ahysc ARBURG Allrounder 220 S 150-30, year of manufacture 2001 Equipment / condition: - Selogica control system with CF card reader - Clamping force 150 kN, injection unit 30, 18 mm screw (screw/cylinder inspected) - Very compact machine, footprint approx. 2.1 x 0.8 m – ideal for small parts - From a tool shop (trial molds and pre-production runs), little used in recent years - No peripherals (dryer and hopper available upon request)

Condition: like new (used), Year of construction: 2023, INJECTION MOLDING MACHINE Arburg ALLROUNDER 1300 T 1000 – 170 Year of manufacture: 2023 Technical Specifications Clamping Unit: Clamping force: 1000 kN – ensures high process stability Rotary table diameter: 1300 mm – optimizes production cycle Usable mold mounting area: 800 × 590 mm Minimum mold height: 300 mm Maximum daylight between platens: 585 mm Injection Unit (3 interchangeable cylinders): Cylinder Ø 30 mm: 83 cm³ at 2200 bar Cylinder Ø 40 mm: 140 cm³ at 1250 bar Cylinder Ø 20 mm: 36 cm³ at 2500 bar Additional equipment: - 2 hydraulic cores – for operating complex molds - 2 pneumatic valves – for additional mold functionalities - GK control – enables direct control of 3 heating zones from the machine - SELOGICA DIRECT control system – precise process control, capability for custom sequence programming Year of manufacture: 08/2023 Pump operating hours: 1062 h Detailed Description The machine is fitted with a hydraulic system featuring two energy-efficient variable displacement pumps and a servo valve for precise pressure and movement control. The hydraulic power unit is mounted outside the injection molding machine’s frame, significantly reducing operational noise. Thanks to precision filters and low oil volume, the oil change interval is extended to 20,000 hours. T2 servo-regulation technology includes: - Two adjustable variable delivery pumps - Programmable, adjustable, and stabilized clamping force - Programmable and manually adjustable nozzle contact force - Capability for simultaneous (parallel) movements (nozzle, ejector, cores) Ibodpfjxzklqox Ahyjc The machine is also equipped with: - Additional continuous oil filtration and cooling system (bypass circuit) - AES system – automatic optimization of main drive operation, reducing energy consumption by smoothly adjusting pump speed according to machine load (for 15–75 kW motors, 380–480V, 50–60 Hz). Required option: 525/02 – adjustable machine cooling circuits Tool plates are equipped with a central injection position and a Ø 125 mm centering hole.

Condition: used, Year of construction: 2005, operating hours: 63,000 h, functionality: fully functional, clamping force: 400 kN, screw diameter: 25 mm, For sale is an injection molding machine of the brand Arburg and the type 270S 400-60 The machine is fully functional and ready for immediate use Technical data Year of construction: 2005 Operating hours: 63,000 h Cylinder: Ø 25 Clamping force: 400 kN Core pull: 1*Hydraulic Internal pressure transducer On request, transportation and loading can be organized at an extra charge. can be organized throughout Europe. Isdju Hqh Repfx Ahysbc Prices plus VAT Viewing possible by appointment. Contact us, our team will be happy to help you. Trade-in or exchange possible! Machines purchase / sale PURCHASE / SALE OF PRODUCTION & METALWORKING MACHINES AND MUCH MORE. Do you need a high-quality but inexpensive metalworking machine for your production? Or do you want to sell yours? For further information or contact options, please visit our website

Condition: used, Year of construction: 2005, operating hours: 40,000 h, clamping force: 25 kN, displacement volume: 230 cm³, injection pressure: 2,500 bar, overall weight: 2,500 kg, screw conveyor diameter: 18 mm, terms of delivery: FCA Pegnitz Ibsdpfx Asynbcnohyec delivery time: on request terms of payment: 100% prior to delivery

Year of construction: 2015, condition: used, There are two Arburg ALLROUNDER 270S 350-70 available, an on-site inspection is possible. Ibsdpez S It Sofx Ahyjc

Year of construction: 2016, condition: ready for operation (used), A fully equipped Arburg injection molding machine including clean air supply Filter Fan Unit and removal robot is available. Clamping force: 1600kN, screw diameter: 45mm, max. cylinder heating: 450°C, total connected load: 85.5kW, machine elevation: 100mm, operating hours: approx. 13361h. Arburg Multilift H: axis: B, Z-axis stroke: 1400mm, conveyor belt length: 2500mm, conveyor belt width: 600mm, deposit height range: 900mm-1300mm, temperature resistance: 160°C. Documentation available. An on-site inspection is possible. Ibodpfjyab Nfsx Ahyjc

Year of construction: 2016, condition: ready for operation (used), A fully equipped Arburg injection molding machine including clean air supply Filter Fan Unit and removal robot is available. Clamping force: 1600kN, screw diameter: 45mm, max. cylinder heating: 450°C, total connected load: 85.5kW, machine elevation: 100mm, operating hours: approx. 9171h. Arburg Multilift H: axis: B, Z-axis stroke: 1400mm, conveyor belt length: 2500mm, conveyor belt width: 600mm, deposit height range: 900mm-1300mm, temperature resistance: 160°C. Documentation available. An on-site inspection is possible. Isdpfxoyab I Us Ahyebc

Condition: used, Year of construction: 1998, Serial No. 174520, control unit, manufacturer Arburg, closing force 400 kN, screw diameter 20 mm, sprue picker, manufacturer TecnoMatic, type micro cnc, vacuum separator, manufacturer Piovan, type DPA20, year of manufacture 2016, microprocessor control, 2 temperature control units, internal numbers 14 and 19, F, drying cylinder, desiccant dryer, manufacturer Piovan. Iedpfjz Hl H Rjx Ahyobc

Year of construction: 2018, condition: used, There are six Arburg ALLROUNDER 320C 500-170 available, year of manufacture: 1x 2006, 1x 2008, 2x 2012, 1x 2013, 1x 2018, an on-site inspection is possible. Ibedjz Sr Rnopfx Ahyec