Used Kraussmaffei Km 130 - 750 Cx for sale (17,151)

Condition: good (used), Year of construction: 2013, clamping force: 16,000 kN, Equipment: documentation/manual, Clamping force: 1600 t Screw diameter: 135 mm Distance between tie bars V: 1420 mm Distance between tie bars H: 1870 mm Shot volume: 9662 cm3 Type: Horizontal Ibsdpsyh I Emefx Apcsb Drive: Hydraulic

Condition: excellent (used), Year of construction: 2002, Krauss Maffei Injection Moulding Machine KM 420-2700 C2 Year of manufacture: 2002 Machine Description The Krauss Maffei KM 420-2700 C2 injection moulding machine is a robust and precise unit with a high clamping force of 4200 kN, designed for processing thermoplastics. Equipped with a reliable hydraulic system and a precision control system, it ensures stable and repeatable operation in demanding production environments. Technical Data Clamping Unit Parameter Unit Value Clamping force kN 4200 Max. mould opening force kN 250 Moving platen travel force – opening kN 124 Moving platen travel force – closing kN 102 Platen dimensions (H × W) mm 1270 × 1200 Tie bar spacing (H × W) mm 800 × 800 Mould opening stroke mm 1020 Minimum mould height mm 380 Maximum daylight mm 1400 Ejector force (forward / backward) kN 95 / 48 Maximum mould weight kg 6700 Ijdpjxq Akksfx Apcjbb Injection Unit Parameter Unit Value Screw diameter mm 70 L/D ratio - 20 Injection pressure bar 1829 Shot volume cm³ 1097 Shot weight (PS) g 998 Injection speed cm³/s 513 Max. plasticising rate g/s 108 Nozzle contact force kN 173 Electrical and Hydraulic Equipment Parameter Unit Value Rated pump motor power kW 75 Installed heating power kW 36 Number of heating zones – barrel - 7 Oil tank capacity l 1075 Dimensions and Weight Parameter Unit Value Machine dimensions (L × W × H) m 7.06 × 2.33 × 2.51 Total machine weight kg 20,500

Condition: like new (used), Year of construction: 2019, Krauss Maffei Injection Molding Line including a Kraus Maffei Injection Molding Machine, Model 50/55 CX with Krauss Maffei handling unit, Model LRX 100 (serial 2118838); tray unstacking station; discharge blower, collection device and tray filling station; and Kemapack GmbH strapping/wrapping machine. Ibjdpfxemn Tu Hs Apcjb

Condition: like new (used), Year of construction: 2008, operating hours: 61,300 h, functionality: fully functional, clamping force: 1,200 kN, screw diameter: 35 mm, clearance between the columns: 470 mm, pressure: 2,429 bar, Here we are offering the following well-maintained used injection moulding machine as part of our injection moulding machinery trading business. Of course, we are also actively purchasing well-maintained injection moulding machines from model year 2010 onward. We have been a wholesale dealer of injection moulding machines for over 25 years. ++++From Pharmaceutical Cleanroom Production++++ Manufacturer: KraussMaffei Machine type: KM 120-380 EX International size designation: 380 EX / 120 Machine no.: 61011287 Year of manufacture: 2008 Machine hours: 61,300 h Ibjdpfsy D Adtox Apceb Control system: MC5 Technical data - Clamping unit Clamping force: 1,200 kN Tie bar spacing H x V: 470 x 470 mm Platen size H x V: 780 x 735 mm Min. mould height: 200 mm Max. mould height: 450 mm Max. platen distance: 850 mm Opening stroke: 400 mm Ejector stroke: 150 mm Ejector force: 22 kN Centric ring for moving platen D: 160 mm Centric ring for fixed platen D: 125 mm Mould weight: 1,485 kg Technical data - Injection unit Screw diameter: 35 mm Stroke volume: 156 ccm Injection pressure: 2,429 bar Screw length: 23 l/d Screw speed: 289 rpm Plasticising rate: 27 g/s PS Free shot weight: 477 g/s PS Number of heating zones: 5 Dimensions & Weight Machine dimensions LxWxH: 6 m x 1.7 m x 2.19 m Total weight: 9,700 kg Equipment Display language German Display language English +++Extras++++ Automation: Handling unit / extraction robot included – Handling: LR 100-2300 Conveying equipment: roller conveyor included CE marking: available Complete maintenance and inspection history Full latest test report Incl. conveyor belt, incl. cage Machine with water battery Machine without material hopper Levelling elements EUROMAP 12 interface Electrics Schuko socket 10A CEE socket 16A Voltage: 400 V Frequency: 50 Hz Motor current: 80 A Warranty Warranty up to first commissioning Loading / Shipping Free loading onto buyer's truck or free delivery within Germany subject to freight reimbursement Available ex stock Hanover, Germany

Condition: used, Year of construction: 2005, Technical details: screw size: 90 mm injection shot weight in Polysterol: 1.758 g/PS closing pressure: 6500 kN Ijdpfx Apetunccscebb weight of the machine ca.: 32 t Out of serial production *

Condition: used, Year of construction: 2006, Injection moulding machine Krauss Maffei KM 800-4300 MX, year 2006 The machine is equipped as follows: Ibsdpjw Hwr Djfx Apceb - 5 hydraulic cascade controls - Injection unit with a 90 - MT5 control system - Krauss Maffei handling system - 2 conveyor belts

Condition: ready for operation (used), Year of construction: 2003, clamping force: 1,250 kN, total width: 1,500 mm, total height: 2,100 mm, overall weight: 6,000 kg, product length (max.): 4,400 mm, Hydraulic injection moulding machine manufactured in 2003. This Krauss Maffei KM125-520C2 features a clamping force of 1250 kN and an opening stroke of 900 mm. It has a screw diameter option of 35 / 40 / 45 mm and a shot volume of approximately 156 / 204 / 258 cm³. If you are looking to get high-quality injection moulding capabilities, consider the Krauss Maffei KM125-520C2 machine we have for sale. Contact us for further details. • Opening force: 35 / 28 kN • Tie bar spacing (H × V): 470 × 470 mm Ibodpfx Apoylkxasceb • Mould installation height min.: 300 mm • Opening stroke: 900 mm • Ejector stroke: 150 mm • Ejector force: 22 / 10 kN • Injection unit: SP 520 • Screw diameter options: 35 / 40 / 45 mm • Shot volume: approx. 156 / 204 / 258 cm³ • Injection pressure: up to approx. 1800+ bar (depending on screw) • Screw speed: approx. 391 / 489 rpm • Plasticizing rate (PS): approx. 22–41 g/s (depending on screw) • Pump motor power: 18.5 kW • Installed heating capacity: 13 kW • Oil filling quantity: 345 l • Max. mould weight: 1485 kg • Power supply: 3 phases • Operating voltage: 400 V • Frequency: 50 Hz Additional equipment • Cooler (included)

Condition: refurbished (used), Year of construction: 2008, functionality: fully functional, Screws ø 90-36D, 45-30D, 45-36D Iedpfjyilyksx Apcjbb Compact design, one shared control cabinet, approx. 800 kg/h

Condition: ready for operation (used), Year of construction: 2007, functionality: fully functional, clamping force: 9,500 kN, screw diameter: 120 mm, ejector stroke: 300 mm, opening stroke: 1,900 mm, TECHNICAL DETAILS Clamping force: 9,500 kN Opening force: 665 kN Tie bar distance: 1,400 x 1,150 mm Clamping plates: 1,960 x 1,710 mm Opening stroke: 1,900 mm Min. mould height: 500 mm Max. mould height: 1,200 mm Max. opening width: 2,400 mm Ejector stroke: 300 mm High-performance screw HPS-UN, diameter: 120 mm Ibjdsxup Sispfx Apcjb Nozzle radius: 30 mm Nozzle opening: 12 mm Screw diameter: 120 mm Shot weight (HDPE): 5,420 g Shot volume: 7,634 cm³ Specific injection pressure: 2,257 bar MACHINE DETAILS Dimensions & Weight Dimensions (L x W x H): 12,770 x 3,420 x 2,750 mm Machine weight: 61.5 t

Year of construction: 2013, condition: ready for operation (used), Hydraulic injection moulding machine manufactured in 2013. This Krauss Maffei 35-180 CX features a plasticising size of 180 and a screw diameter of 28 mm. With 2 units available, this machine offers reliable performance for your production needs. If you are looking to get high-quality plastic processing capabilities, consider the Krauss Maffei 35-180 CX machine we have for sale. Contact us for further details. • Axes: not applicable • 2 units available (80 & 81)(82 is sold) Iodpfxszr H Sns Apcjbb • Plasticising size 180 • Plasticising arrangement H • Screw diameter 28 mm • Nozzle radius 10 mm • Nozzle bore 4 mm

Condition: ready for operation (used), Year of construction: 2007, functionality: fully functional, clamping force: 9,500 kN, screw diameter: 120 mm, ejector stroke: 300 mm, opening stroke: 1,900 mm, TECHNICAL DETAILS Ibodpfjy T H A Esx Apcob Clamping force: 9,500 kN Opening force: 665 kN Tie bar distance: 1,400 x 1,150 mm Clamping plates: 1,960 x 1,710 mm Opening stroke: 1,900 mm Min. mould height: 500 mm Max. mould height: 1,200 mm Max. opening width: 2,400 mm Ejector stroke: 300 mm High-performance screw HPS-UN, diameter: 120 mm Nozzle radius: 30 mm Nozzle opening: 12 mm Screw diameter: 120 mm Shot weight (HDPE): 5,420 g Shot volume: 7,634 cm³ Specific injection pressure: 2,257 bar MACHINE DETAILS Dimensions & Weight Dimensions (L x W x H): 12,770 x 3,420 x 2,750 mm Machine weight: 61.5 t

Year of construction: 2000, condition: ready for operation (used), Two injection moulding machines Krauss Maffei are available. 1) Krauss Maffei KM 50 C1, year of manufacture: 1999, injection unit: SP220, screw diameter: 30mm, L/D ratio: 23, injection pressure: 2500bar, shot volume: 85cm³, machine dimensions X/Y/Z: approx. 3200mm/1350mm/1800mm, weight: approx. 2500kg, control: MC4, operating hours: approx. 86000h. 2) Krauss Maffei KM 125 C1, year of manufacture: 2000, injection unit: SP520, screw diameter: 45mm, L/D ratio: 20, injection pressure: 1878bar, shot volume: 217cm³, machine dimensions X/Y/Z: approx. 4500mm/1550mm/2200mm, weight: approx. 5500kg, control: MC4, operating hours: approx. 82000h. Documentation available. An on-site inspection is possible. Ibodpfew Emybsx Apcsb

Condition: ready for operation (used), Year of construction: 1999, operating hours: 82,539 h, clamping force: 8,000 kN, screw diameter: 105 mm, Hydraulic injection moulding machine manufactured in 1999. This Krauss Maffei KM800-5700 MC features a clamping force of 8000 kN and an injection unit size of 5700. It has a maximum mould height of 1,100 mm and an opening stroke of 1,400 mm. If you are looking to get high-quality moulding capabilities, consider the Krauss Maffei KM800-5700 MC machine we have for sale. Contact us for further details. • Clamping Force: 8000 kN • Injection Unit Size: 5700 • Screw Diameter: 105 mm • Number of Hydraulic Core Pulls: 4 • Air Valve: 1 (AS) • Operating Hours: Approx. 82,540 h • Mould Height (Min.): 600 mm • Mould Height (Max.): 1,100 mm • Opening Stroke: 1,400 mm • Platen Dimensions: 1,300 × 1,300 mm • Tie Bar Distance (Horizontal): 1,120 mm • Tie Bar Distance (Vertical): 1,000 mm • Centering Ring Diameter: 250 mm • Water Circuits: 8 per Platen Ibjdpfsznuxhjx Apcob • Service History: Inspected and Pump Connections Sealed by Krauss Maffei in 2025 • Machine Condition: Operational • Conveyor Belt: optional • Handling System: optional

Condition: ready for operation (used), Year of construction: 2007, operating hours: 70,000 h, functionality: fully functional, clamping force: 6,500 kN, screw diameter: 95 mm, displacement volume: 3,367 cm³, Clamping force 6500 kN Mould opening force, max. 346 kN Travel force movable platen opening 169 kN Travel force movable platen closing 144 kN Size of mould platens (h x v) 1520 x 1470 mm Distance between tie bars (h x v) 1000 x 930 mm Mould opening stroke 1150 mm Mould height min 600 mm Max. daylight 1750 mm Hydraulic ejector - stroke 250 mm Ejector force 95 kN Injection unit: Screw diameter 96 mm Ls/D ratio 23 Injection pressure 1795 bar Stroke volume 3367 ccm Shot weight (PS) 3064 gr. Injection rate 690 ccm/s Screw speed 153 1/min Plasticising rate max. 104 g/s Nozzle pressure 166 kN Electric and Hydraulic Equipment: Nominal capacity of pump motor 90 kW Installed heating capacity 50 kW Adjustable barrel heating zones 7 Dimensions and weights: Dimensions of the machine ca. 9,83 x 2,90 x 2,80 m Total machine weight 43170 kg Accessories: - Anti vibration pads - Krauss Maffei Robot LR300 X: 1200 mm, servo Y: 1000/1000 mm, servo Z: 3500 mm, servo C: 0 - 90° - Conveyor - saftey guard Ijdpfsx Hzzcsx Apcjbb Additional options: - 1 x air valve - 6 x pneumatic sequentional valves - 12 hotrunner controller - 2 x hydr. core pulls on movable plate - 2 x hydr. core pulls on fix plate

Condition: like new (used), overall weight: 6,400 kg, maximum load weight: 650 kg, load capacity: 500 kg, Vertical basket bottom discharge reconditioned centrifuge with scraper on inertia plate Type KM 125 manufactured by KRAUSS MAFFEI. AISI 316L wetted parts. Ijdpfx Asrrwdbepcobb Suspension: Rigid type centrifuge on inertia plate. Lid: with 3 manual opening closures, lid opening by means of a hydraulic piston (includes hydraulic power unit), a flat sight glass, an inclined sight glass, cake scraper, N2 inlet fittings and with washing tube and loading tube connections Transmission: 37 kW ATEX electric motor Securities: pneumatic lid opening safety piston, lid safety piston detector. lid open detector. detector for tachometer on machine and motor (includes connection box)

Condition: like new (used), Year of construction: 2015, functionality: fully functional, machine/vehicle number: G5-M030-13-2V-R10-15, total length: 7,200 mm, total height: 2,700 mm, input voltage: 400 V, total width: 2,700 mm, Technical Specifications Brand: Schraml Model: TopDRILL M-RX 130 Roto-10 Ibjdjz A D H Ujpfx Apcob Year: 2015 Direction of rotation: Right to left Condition: As is (Very good condition) Parameter Specification / Capacity - Machining height / Max. 1300 mm - Maximum glass height / Unlimited (Open-top model / open-top design) - Maximum glass length / 3200 mm - Glass size for drilling min. 600 x 210 mm - Glass size for milling min. 750 x 210 mm - Maximum glass weight 150 kg - Glass thickness for drilling 4 - 40 mm - Glass thickness for milling 4 - 20 mm - Tool magazine (Roto) Automatic double revolver magazine 10 + 10 (front and rear), total 20 positions - Tool diameter Up to max. 80 mm - Tool connection 1/2" gas thread with length 75 mm - Spindle speed 0 - 12,000 rpm - Spindle cooling Water-cooled - Control & Software Schraml software with Siemens electrical components - Included accessories Automatic sharpening device for tools - Separate vacuum pump for glass fixing - Additional conveyor (1 meter) - Machine dimensions L 7200 mm x W 2700 mm x H 2700 mm - Machine weight 3800 kg - Electrical connection 3x400V + N + PE, 50/60Hz, total power: 25 kW Dismantling, loading and installation can be carried out on request by our service team.

Condition: excellent (used), Manufacturer: KRAUSS MAFFEI Type: KM 120-380 EX Control: MC5 Year of manufacture: 2008 Operating hours: 10113 h Technical data, clamping unit Clamping force: 1200 kN Tie bar spacing h x v: 470 x 470 mm Platen size h x v: 780 x 735 mm Minimum mold height: 200 mm Maximum mold height: 450 mm Maximum mold thickness: 850 mm Opening stroke: 400 mm Ejector stroke: 150 mm Ejector force: 22 kN Centering of moving platen D: 160 mm Centering of fixed platen D: 125 mm Tool weight: 1485 kg Technical data, injection unit Screw diameter: 35 mm Injection volume: 156 cc Injection pressure: 2429 bar Screw length: 23 l/d Screw speed: 289 rpm Plasticizing rate: 27 g/s PS Injection rate into free air: 477 g/s PS Number of heating zones: 5 Dimensions & Weight Machine dimensions L x W x H: 6 m x 1.7 m x 2.19 m Total weight: 9700 kg Equipment • Screen display in German • Screen display in English • CEE socket 16A • Hydraulic core pull, 2x • Machine with water manifold Iodpjzyn Igefx Apcsbb • Machine without material hopper • Leveling elements • EUROMAP 12 interface • Schuko socket 10A

Condition: excellent (used), Year of construction: 2009, operating hours: 35,808 h, functionality: fully functional, clamping force: 800 kN, screw diameter: 40 mm, displacement volume: 204 cm³, injection pressure: 1,860 bar, injection weight: 186 g, Here we offer the following well-maintained used injection moulding machine as an injection moulding machine dealer: Of course, we also purchase well-maintained injection moulding machines from the 2010 model year onwards. We have been a wholesale dealer for injection moulding machines for over 25 years. Manufacturer: KraussMaffei Model: KM EX 80-380 (fully electric) Serial number: 61013142 Year of manufacture: 2009 Operating hours: 35,808 h Control system: MC 5 Fully functional Condition: very well maintained Machine comes from original German ownership xxxxx without robot / without temperature control unit xxxxx Extras: - Pneumatic needle shut-off nozzle - 1 pneumatic valve on BWAP - Pneumatic control for 1 hot runner - Pneumatic control for hot runner/cold runner - Reject chute - Nozzle guard door – ejector area safety door foldable - Euromap 18 interface on FWAP - Electrically actuated ejector plate in BWAP - Hydraulic auxiliary unit for core pulls - Injection-compression control - 2 x hydraulic core pulls (on BWAP and FWAP) - Pressure relief for core pulls on BWAP and FWAP - Water manifold, 8 circuits - 8 heating zones for hot runner - Extrusion injection circuit with position control - 3 x 230V sockets, 2 x CEE 16A / 1 x CEE 32A - EUROMAP 67 signal interface for robot - Start-up sequence, quality assurance package, cycle time analysis, cycle memory, event protocol - BluePOWER package: energy consumption display - Graphics analysis package, trend chart - Interface for temperature control unit - Cycle time analysis, actual cycle time optimization Injection unit: Screw diameter: 40 mm Ibodpfx Apsyrd U Uecjb Shot weight: 186 g / PS Injection pressure: 1,860 bar Shot volume: 204 cm³ Clamping unit: Clamping force: 80 t / 800 kN Tie bar spacing: 420 x 420 mm Platen size: 655 x 670 mm Mould installation height: 250 mm Max. platen gap: 750 mm Ejector stroke/force: 100 mm / 22 kN Clamping unit fully electric Warranty: Warranty until first commissioning Loading/Shipping: Free loading onto buyer’s truck or free delivery within Germany against reimbursement of freight charges Available from our warehouse in Hannover, Germany

Condition: good (used), Year of construction: 2002, 1,0 St. gebr. Spritzgießmaschine Hersteller: KRAUSS MAFFEI Typ: KM575-1900C2 Baujahr: 2002 Isdpfx Apjyak Htjcobb Schließkraft: 575 Tonnen Holmabstand 1000 x 1097 mm Schnecken DN: 70 mm Max. Hubvolumen: 1.097 cm³ Spritzteilgewicht: 998 g/PS Steuerung: MC4 Ausstattung: 5 St. Kernzug Roboter, Hersteller: Reis, Baujahr: 2015 24- Fach Heisszonenkanalregelung Förderband Schutzzaun

Condition: ready for operation (used), Year of construction: 2009, functionality: fully functional, clamping force: 6,500 kN, screw diameter: 70 mm, injection pressure: 2,389 bar, ejector stroke: 135 mm, opening stroke: 1,825 mm, TECHNICAL DETAILS Clamping Unit Ibjdpfx Apeycqc Tocsb Clamping force: 6,500 kN Maximum mold opening force: 346 kN Moving platen opening force: 169 kN Moving platen closing force: 144 kN Mounting platen (H x V): 1,520 x 1,470 mm Clear distance (H x V): 1,000 x 930 mm Mold opening stroke: 1,150 mm Minimum mold installation height: 675 mm Daylight: 1,825 mm Ejector stroke: 135 mm Ejector force forward/backward: 226 kN Injection Unit Screw diameter: 70 mm L/D ratio: 23 Injection pressure: 2,389 bar Shot volume: 1,097 cm³ Shot weight (PS): 998 g Injection flow rate: 393 cm³/s Screw speed: 218 rpm Plasticizing rate: 83 g/s Nozzle contact force: 173 kN MACHINE DETAILS Dimensions & Weight Required floor space approx.: 8.70 x 2.90 x 2.80 m Total weight: 44,000 kg Electrohydraulic Equipment Rated power pump motor: 75 kW Installed heating capacity: 36 kW Temperature control zones cylinder heating: 7 EQUIPMENT Oscillating elements 1 x air valve 8-fold pneumatic cascade control Accumulators 2 x hydraulic core pulls at BWAP 2 x hydraulic core pulls at FWAP Robot interface according to EUROMAP 67

Condition: ready for operation (used), Year of construction: 2002, functionality: fully functional, machine/vehicle number: 424227, clamping force: 4,200 kN, screw diameter: 80 mm, injection pressure: 1,829 bar, injection weight: 1,304 g, opening stroke: 1,400 mm, TECHNICAL DETAILS Clamping force: 4,200 kN Platen size (H x W): 1,270 x 1,200 mm Tie bar spacing (H x W): 800 x 800 mm Minimum mold height: 380 mm Maximum mold height: 1,020 mm Max. opening stroke: 1,400 mm Screw diameter: 80 mm Shot volume: 1,433 cm³ Shot weight: 1,304 g (PS) Ibodpfx Ajy T Hwiopceb Max. injection pressure: 1,829 bar Max. temperature: 375 °C MACHINE DETAILS Supply voltage: 400 V Phases: 3~ Frequency: 50 Hz Total current draw: 237 A Fuse rating: 250 A Pump power: 75 kW Heating power: 36 kW Dimensions & Weight Dimensions (L x W x H): 7.06 x 2.33 x 2.51 m Machine weight: approx. 22,000 kg

Condition: ready for operation (used), The injection momlding machine corresponds to the hydromechanical two-platen series, clamping force: 550t, operating hours: approx. 80h, with Handling Krauss Maffei KM 250/ LRX-S 250. An on-site inspection is possible, the machine is located in Mexico. Ijdpfxezrn Hmj Apcobb

Condition: reconditioned (used), Year of construction: 2006, operating hours: 60,000 h, functionality: fully functional, clamping force: 8,000 kN, screw diameter: 85 mm, Horizontal injection moulding machine from Krauss-Maffei. 800 tons clamping force. Year of manufacture 2006. Screw diameter 85mm. MC5 control. Approximately 60,000 working hours. The machine is delivered REFURBISHED by our team of technical experts and in optimal working condition. We can offer commissioning services at our customer's premises, ensuring full functionality upon installation completion. Technical Details Screw diameter: 85mm Injection pressure: 2242 Bar Injection volume: 2695 cm3 Iedpfx Aew Avafopcjbb Injection weight: 2452g (PS) Year of manufacture: 2006 Working hours: 60,000 Minimum mould thickness: 550/1100mm (Min/Max) Maximum platen distance: 2100mm Opening stroke: 1600mm Tie bar distance: 1120x1000mm Platen dimensions: 1600x1530mm Clamping force: 8000 kN

Year of construction: 1996, condition: good (used), Make:KRAUSS-MAFFEI Description: used type: KMD-2-50-KK output capacity: max. approx. 140-180 kg/h for H-PVC pipes, depending on material and product this can vary year of construction:1996 Screw diameter:50-103 mm (conical) Screw length:1300 mm Screw speed: max. 43 m/min. Drive motor: DC motor 25 kW Ijdpeh Nmt Djfx Apcebb Cylinder heating/cooling zones: 4/3 (oil cooling) inlet piece heating zone: 1 tool heating zones: 5 Equipment: dosing unit with hopper, vacuum pump for barrel degassing, barrel cooling unit, screw tempering unit Gearbox, was installed at 53,000 hrs. Overhauled worms and the cylinder Note: current running time is 62,590 hrs. Good Second hand functional

Condition: excellent (used), Rexroth Voith triple pump for Krauss Maffei, SY2DFE1-20/071/071 KM No. 6268540 KM No. 6441936 Ijdpfx Ajzl Dg Nspcjbb R901196471