Ostertag-Plastic

Condition: excellent (used), Year of construction: 2020, WOOJIN PLAIMM TE 50 INJECTION MOLDING MACHINE Technical specifications: Machine type: electric injection molding machine Njdpsy Ulfzsfx Amnolb Year of manufacture: 2020 Operating hours: Auto: 44,097 h Motor: 3,719 h Additional counter: 28,454 Clamping force: 490 kN Injection volume: 34 cm³ Screw diameter: 22 mm Injection weight: approx. 30–35 g PS Maximum mold opening stroke: 250 mm Column spacing: 360 x 360 mm Platen dimensions: 530 x 580 mm Minimum mold height: 130 mm Centering hole diameter: 125 mm Maximum injection pressure: 2184 bar Total power: 20.7 kW Machine weight: 3600 kg Machine type: electric (E) The machine is in very good technical and visual condition. It has been regularly used in serial production and is available for inspection while in operation.

Condition: excellent (used), Year of construction: 2011, BATTENFELD 35/75 PLUS INJECTION MOLDING MACHINE Technical specifications: Year of manufacture: 2011 Operating hours: 89,192 h Clamping force: 350 kN Injection volume: 25.4 cm³ Injection shot weight: approx. 23–27 g PS Screw diameter: 18 mm Maximum mold opening stroke: 200 mm Column spacing: 270 x 260 mm Platen dimensions: 470 x 280 mm Minimum mold height: 150 mm Centering hole diameter: 110 mm Maximum injection pressure: 2034 bar Hydraulic oil volume: 125 dm³ Total power: 28 kW Machine weight: 1050 kg Machine type: hydraulic Control system: BATTENFELD UNILOG B2 Nlodoy Uk Axepfx Amnsb The machine is in very good technical and visual condition. A larger number of machines in the same configuration are available – a total of 12 units manufactured in 2010–2011.

Condition: excellent (used), Year of construction: 2013, functionality: fully functional, clamping force: 400 kN, screw diameter: 22 mm, clearance between the columns: 270 mm, displacement volume: 34 cm³, injection pressure: 2,000 bar, injection weight: 31 g, mold height (min.): 200 mm, ejector stroke: 125 mm, Arburg 270C 400-70 Golden Edition Clamping force: 40 t Year of manufacture: 2013 Shot weight: 31 g Injection unit: .../70 Screw diameter: 22 mm Specific injection pressure: 2000 bar Injection volume: 34 ccm Shot weight: 31 g Mold closing system: 400/... Clamping force: 40 t Mold plate dimensions: 446 x 446 mm Mold height: 200 mm Opening stroke: 350 mm Njdpoy Ukykjfx Amnolb Maximum plate distance: 550 mm Ejector stroke: 125 mm General data: Control system: Selogica Equipment: 2 x pneumatic valve 2 x hydraulic core Multilift robot 3-zone hot runner system Rotameter

Condition: excellent (used), Year of construction: 2012, ARBURG A 375 V 500-170 Turntable (S&P 3773) Manufacture year: 2012 Nsdpfx Ajy Ukbhemnelb Operating hours: 36,900 Stunden Screw: 25 HVF mm Injection pressure: 2500 bar Stroke volume: 59 cm³ Clamping Force: 50 t Mould installation height min.: 170 mm Plate distance max.: 520 mm Dimensions: 3300 x 1700 x 2100 mm Eeight: 3740 kg Connected load: 11 + 11 = 22 kW Vertical injectionmoldingmachine with a 900mm turntable, 2 station 180°, incl. Option for horizontal injection into parting line incl. lifting table, Robot Interface EM67, Airvalve, EM73, Hotrunner etc...price when new approx. 170.000,- Euro Price: on request contact: Mr. Ralf Schulz

Condition: excellent (used), Year of construction: 2016, ARBURG A 470 H 1000-170 HIDRIVE (32.000 h) (S&P 3796) Manufacture year: 2016 Operating hours: 32,000 Stunden Screw: 30 mm Injection pressure: 2000 bar Stroke volume: 85 cm³ Clamping Force: 100 t Tie bar distance: 470 x 470 mm Mould installation height min.: 250 mm Plate distance max.: 850 mm Dimensions: 4100 x 1700 x 2400 mm Eeight: 5030 kg Connected load: 21 kW Nlodpfx Ajy Ui Ugsmnob Accu, Robot Interface EM67, EM73, Airvalve Price: on request contact: Mr. Ralf Schulz

Condition: excellent (used), Year of construction: 2016, clamping force: 800 kN, Clamping force: 80 t Screw diameter: 30 mm Distance between tie bars V: 180 mm Distance between tie bars H: 180 mm Nljdpfjy Uffusx Amnsb Type: Vertical Drive: Hydraulic

Condition: used, Year of construction: 2004, Injection molding machine, Boy 22D, year of manufacture 2004. Nedpfxoy Tv Ido Amnolb Injection molding machine, Boy 22 D, year of manufacture 1999.

Condition: excellent (used), Year of construction: 2006, clamping force: 500 kN, screw diameter: 22 mm, clearance between the columns: 355 mm, displacement volume: 41 cm³, injection pressure: 2,800 bar, injection weight: 37 g, mold height (min.): 210 mm, overall weight: 2,700 kg, Clamping force: 50 t Year of manufacture: 2006 Injection unit .../200 Screw diameter: 22 mm Specific injection pressure: 2800 bar Injection volume: 41.8 ccm Njdpfx Amjy Tvvnjnelb Mould clamping system 50/... Clamping force: 50 t Mould plate dimensions: 520 x 520 mm Tie bar clearance: 355 x 355 mm Mould height: 210 mm Opening stroke: 400 mm Maximum platen distance: 610 mm Weight: 2700 kg Dimensions (m) L x W x H: 3.8 x 1.1 x 2.1 m Control: NC4

Condition: excellent (used), Year of construction: 2004, Arburg 420C 800-250 Year of manufacture: 2004 Injection unit: Screw diameter: 30 mm Shot weight: 89 g Injection pressure: 2470 bar Dosage volume: 106 ccm Clamping unit: Clamping force: 80 t Tie bar spacing: 420x420 mm Platen size: 570x570 mm Ejector: hydraulic Clamping unit: hydraulic Control: SELOGICA Additional equipment: Euromap 67 Robot interface Hydraulic core pull x 1 Injection unit hardened – bimetallic Nljdpfxsy Smu Es Amnjb Dimensions: Weight: 3180 kg Length/Width/Height: 4.30x1.64x2.08 m Drive: Pump/motor: 15 kW Heating capacity: 6.5 kW Total power: 21.5 kW All machines offered are started up by our service engineers before sale. It is possible to receive a video of the technical tests of the selected machine or to participate in live technical demonstrations at our facility in Łódź. Price: On request

Condition: excellent (used), Year of construction: 2003, Arburg 420S 800-350 Year of manufacture: 2003 Injection unit: Screw diameter: 50 mm Shot weight: 250 g Injection pressure: approx. 1300 bar Dosage volume: 288 ccm Clamping unit: Clamping force: 80 t Tie bar distance: 420x420 mm Platen size: 570x570 mm Ejector: hydraulic Clamping unit: hydraulic Control: SELOGICA Additional equipment: Euromap 12 interface Robot interface Air valve x 1 Core pull control Injection unit hardened - bimetallic Proportional valve on the injection unit – for precise injection Integrated original Arburg side sprue picker Dimensions: Weight: 3,800 kg Length/Width/Height: 4.06x1.39x2.12 m Drive: Pump/Motor: 18.5 kW Heating capacity: 10.2 kW Nljdpfx Aey Smuromnob Total power: 28.7 kW 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 company in Łódź. Price: On request

Condition: excellent (used), Year of construction: 1999, Arburg 420C 800-250 with the sprue picker anvil+long leg Year of construction: 1999 Injection unit: Screw diameter: 40 mm Injection weight: 158 g Injection pressure: 1390 bar Metering volume: 188 ccm Clamping unit : Clamping force: 80 t Distance between tie bars: 420x420 mm Size of the clamping platens: 570x570 mm Ejector: hydraulic Clamping unit: hydraulic Control system: SELOGICA Additional equipment: Euromap 12 Robot interface Control system with air valve Core pull control Hardened injection unit - bimetal Nlodpfx Aoy Smulomnob Dimensions Weight: 3180 kg Length/width/height: 4.30x1.64x2.08 m Drive: Pumps/motor: 15 kW Heating output: 6.5 kW Total output: 21.5 kW 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: 2005, Arburg 1200T 800-150 / Vertical Injection Molding Machine with Rotary Table Year of Manufacture: 2005 Nodpfjy Smufex Amnelb Injection Unit: Screw Diameter: 25 mm Injection Weight: 45 g Injection Pressure: 2500 bar Dosing Volume: 54 cc Clamping Unit: Clamping Force: 80 t Tiebar Distance: 0 x 0 mm Clamping Platen Size: 1200 mm Ejector: Hydraulic Clamping Unit: Hydraulic Control System: SELOGICA Additional Equipment: Air Valves x 6 Hydraulic Core Pullers x 6 Control System with Hot Runners Injection Unit Hardened - Bimetal Rotary Table Diameter: 1200 mm Kistler Sensor - Mold Pressure Control Machine serviced by the authorized Arburg Service Center in Germany Dimensions: Weight: 7400 kg Length/Width/Height: 3.92 x 1.61 x 3.78 m Drive: Pump/Motor: 22 kW Heating power: 9.4 kW Total power: 31.4 kW All offered machines are started by our service technicians before sale. You can receive a video of the technical tests of the selected machine or participate in live technical tests at our facility in Łódź. Price: Upon request

Condition: excellent (used), Year of construction: 1999, Arburg 420C 800-250 Year of construction: 1999 Injection unit: Screw diameter: 35mm Injection weight: 121 g Injection pressure: 1820 bar Metering volume: 144 ccm Clamping unit: Clamping force: 80 t Distance between tie bars: 420x420 mm Size of the clamping plates: 570x570 mm Ejector: hydraulic Clamping unit: hydraulic Control system: SELOGICA Additional equipment: Very good technical condition Machine has produced molded parts for medical industry - clean production conditions Nodsy Smt Iepfx Amnolb Euromap 12 Robot interface Core pull control Hardened injection unit - bimetal Dimensions Weight: 3180 kg Length/width/height: 4.30x1.64x2.08 m Drive: Pumps/motor: 15 kW Heating output: 6.5 kW Total output: 21.5 kW 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: 2004, Arburg 420C 800-250 with the Wittmann W721 robot Year of construction: 2004 Injection unit: Screw diameter: 30 mm Njdpfxey Smtzo Amnslb Injection weight: 89 g Injection pressure: 2470 bar Dosing volume: 106 ccm Clamping unit: Clamping force: 80 t Distance between tie bars: 420x420 mm Size of the clamping platens: 570x570 mm Ejector: hydraulic Clamping unit: hydraulic Control system: SELOGICA Additional equipment: Euromap 67 Robot interface Air valve x 2 Hydraulic core pull x 2 Control unit with hot runners Hardened injection unit - bimetal Proportional valve on the injection unit - precise injection Built-in pressure quality control system from Sensor Kistler - mold pressure measurement Original mold crane Robot Wittmann W721 Year of manufacture: 2007 4-axis robot: 3 axes are driven by servomotors (electric); axis C Travel in axes: X-550, Y-1200, Z-1250 Touch control panel Robot with adapter Purchase of the robot for an additional charge Dimensions Weight: 3180 kg Length/width/height: 4.30x1.64x2.08 m Drive: Pumps/motor: 15 kW Heating output: 6.5 kW Total output: 21.5 kW 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: 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 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 Nledpfsy Smtuox Amneb 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: 2005, Arburg 320K 700-250 with the side robot Arburg Multilift H Year of manufacture: 2005 injection unit: Screw diameter: 40 mm injection weight: 158 g injection pressure: 1390 bar Metering volume: 188 ccm Clamping unit : clamping force: 70 t Nsdpfx Aey Smthjmnelb tie bar distance: 320x320 mm size of clamping platens: 476x476 mm ejector: hydraulic clamping unit: toggle lever Control system: SELOGICA Additional equipment: Air valve x 3 Control with hot runners injection unit hardened - bimetal Central lubrication Dimensions: Weight: 2350 kg length/width/height: 3.37x1.45x1.99 m Drive: Pumps/motor: 15 kW Heating power: 6,1 kW Total power: 21,1 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, Arburg 320K 700-100 Year of construction: 2001 Injection unit: Screw diameter: 30 mm Injection weight: 59 g Injection pressure: 1550 bar Dosing volume: 70 ccm Clamping unit : Clamping force: 70 t Distance between tie bars: 320x320 mm Size of the clamping platens: 476x476 mm Ejector: hydraulic Clamping unit: toggle lever Control system: SELOGICA Additional equipment: Hydraulic core pull x 1 Hardened injection unit - bimetal Central lubrication Original Arburg mold crane, 2 lifting speeds, lifting capacity 100 kg Dimensions: Weight: 2170 kg Length/width/height: 2.94x1.45x1.99 m Nedpfey Smtbjx Amnslb Drive: Pump/motor: 11 kW Heating output: 4.9 kW Total output: 15.9 kW 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: 2014, Arburg 370H 600-290 with Geiger MiniServo II Sprue Picker / Hybrid Machine Year of manufacture: 08/2014 Injection Unit: Screw diameter: 30 mm Shot weight: 97 g Injection pressure: 2,500 bar Dosage volume: 106 cc Clamping Unit: Clamping force: 60 t Tie bar spacing: 370 x 370 mm Platen size: 510 x 510 mm Ejector: electric Clamping system: toggle lever Nledpfey Smr Dox Amnjb Control system: SELOGICA – touchscreen Additional equipment: Production line with Arburg Multilift Select robot and conveyor belt Electric machine: high-speed, energy-efficient, and very quiet Operating hours: 32,839 h in automatic mode Euromap 67 Euromap 12 Robot interface Air valve x 2 Hydraulic core pull x 1 Hot runner control x 6 Injection unit: hardened, bimetallic Main drive: servo motor with inverter – energy saving Proportional valve on injection unit – precise injection Central lubrication Kistler sensor – mold pressure control Machine equipped with two cylinders / battery with compressed nitrogen (additional charge for fast operation) Integrated Arburg brand conveyor belt and sorting flap Geiger MiniServo II sprue picker Year of manufacture: 2018 X and Y axes driven by servo motors (electric) Sprue picker purchase available at extra cost Dimensions: Weight: 3,600 kg Length/Width/Height: 4.00 x 1.45 x 2.04 m All machines offered are started up and checked by our service technicians before sale. It is possible to obtain a video of the selected machine’s technical tests or to participate in live technical tests at our facility in Łódź. Price: On request

Condition: excellent (used), Year of construction: 2008, Arburg 370S 600-70 Year of manufacture: 2008 Injection Unit: Screw diameter: 25 mm Shot weight: 40 g Nledpfx Amsy Smrqeneb Injection pressure: 1,550 bar Metering volume: 44 cm³ Clamping Unit: Clamping force: 60 t Tie bar spacing: 370 x 370 mm Platen size: 510 x 510 mm Ejector: hydraulic Clamping unit: hydraulic Control system: SELOGICA - Touchscreen Additional equipment: - Euromap 67 - Robot interface - 8x air valves - 1x hydraulic core pull - Controller for hot runner (6 zones) - Injection unit: hardened, bimetallic - Integrated sorting flap - Integrated original Arburg side gate picker - Option to set up vertical injection unit using special brackets - Screw diameter can be changed to 22, 25, or 30 mm Dimensions: Weight: 3,160 kg Length/Width/Height: 3.48 x 1.46 x 2.03 m All machines offered are started and tested by our technicians prior to sale. A video of the technical tests for the selected machine can be provided, or live technical tests can be attended at our facility in Łódź. Price: On request

Condition: excellent (used), Year of construction: 2017, Arburg 370E 600-170 with Arburg Multilift Select robot / All-electric injection molding machine Year of manufacture: 11.2017 Injection unit: Screw diameter: 30 mm Shot weight: 77 g Injection pressure: 2000 bar Dosage volume: 85 ccm Clamping unit: Njdpfx Aoy Smrkemnslb Clamping force: 60 t Tie bar spacing: 370x370 mm Platen size: 510x510 mm Ejector: electric Clamping system: toggle Control system: SELOGICA - touchscreen Additional equipment: Production line with Arburg Multilift Select robot and conveyor belt All-electric machine: high-speed, energy-efficient, and very quiet Operating hours: h in automatic mode Euromap 67 Robot interface Air valve x 2 Hydraulic core pull x 1 Hot runner control x 24 zones Hardened injection unit – bimetallic Main motor: servo-driven with inverter for energy saving Injection unit driven by servo motor controlled by inverter Parallel movements Central lubrication Machine with two cylinders / nitrogen accumulator (extra charge for high-speed operation) Integrated Arburg conveyor belt and sorting flap Arburg Multilift Select robot, 6 kg, transverse Year of manufacture: 11.2017 4-axis robot: 3 axes servo-driven (electric), C axis pneumatically driven Stroke (axes): X-600, Y-800, Z-1800 mm Robot safety package Robot with adapter and safety housing Purchase of robot and conveyor belt possible at additional cost Dimensions: Weight: 3600 kg Length/width/height: 4.00x1.45x2.04 m All offered machines are started up by our service technicians before sale. A video of the technical tests of the selected machine can be provided, or you can participate in live technical demonstrations at our facility in Łódź. Price: On request

Condition: excellent (used), Year of construction: 2011, Arburg 370H 600-100 Year of manufacture: 11.2011 Injection Unit: Screw diameter: 30 mm Shot weight: 65 g Injection pressure: 1390 bar Injection volume: 71 cm³ Clamping Unit: Clamping force: 60 t Tie bar spacing: 370 x 370 mm Platen size: 510 x 510 mm Ejector: electric Clamping system: toggle lever Control: SELOGICA - Touchscreen Additional equipment: Hybrid machine: high-speed, energy-efficient, and very quiet Euromap 67 Robot interface 3x air valves 1x hydraulic core pull Hot runner control for 12 zones Hardened injection unit - bimetal Main drive motor: servo motor driven by inverter – energy saving Injection unit driven by servo motor controlled by inverter Machine is equipped with a cylinder / accumulator with compressed nitrogen (additional charge for high-speed operation) Central lubrication Dimensions: Weight: 3,190 kg Length/Width/Height: 3.68 x 1.45 x 2.04 m Nledpfx Amoy Smq Tjnsb All listed machines are started up by our service technicians prior to sale. It is possible to receive a video showing the technical testing of the selected machine or to participate in live technical demonstrations at our facility in Łódź. Price: On request

Condition: excellent (used), Year of construction: 2001, Arburg 320C 600-250 / machine in very good technical condition Year of manufacture: 2001 injection unit: Njdpsy Smqmofx Amnelb Screw diameter: 35 mm injection weight: 121 g Injection pressure: 1820 bar Metering volume: 144 ccm Clamping unit: clamping force: 60 t tie bar distance: 320x320 mm size of clamping platens: 446x446 mm ejector: hydraulic clamping unit: hydraulic Control system: SELOGICA Additional equipment: Very good technical condition Machine has produced molded parts for medical industry - pure production conditions Core pull control Injection unit hardened - bimetal Built-in sorting flap Dimensions: Weight: 2330 kg Length/width/height: 3.65x1.48x1.99 m Drive: Pumps/motor: 15 kW Heating power: 6,5 kW Total power: 21,5 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: 2010, Arburg 370S 500-100 Year of manufacture: 10.2010 Injection unit: Screw diameter: 30 mm Shot weight: 65 g Injection pressure: 1390 bar Dosing volume: 71 cm³ Clamping unit: Clamping force: 50 t Tie bar distance: 370x370 mm Platen size: 510x510 mm Ejector: hydraulic Clamping unit: hydraulic Control system: SELOGICA – Touchscreen Additional equipment: Euromap 67 Robot interface Hydraulic core pull x 1 Hot runner control with 12 zones Injection unit is wear-resistant and corrosion-resistant Proportional valve on the injection unit – precise injection The machine has operated in a clean production environment Dimensions: Weight: 3300 kg Length/Width/Height: 3.48 x 1.46 x 2.03 m All machines offered are started up by our service technicians before sale. Nodpjy Smqgofx Amnelb A video of the technical tests of the selected machine can be provided or you can participate in live technical tests at our company in Łódź. Price: On request

Condition: excellent (used), Year of construction: 1995, Arburg 370C 600-100 Year of construction: 1995 Injection unit: Screw diameter: 30 mm Injection weight: 59 g Injection pressure: 1550 bar Dosing volume: 70 ccm Clamping unit: Clamping force: 60 t Distance between tie bars: 370x370 mm Size of the clamping platens: 570x570 mm Ejector: hydraulic Clamping unit: hydraulic Control system: DIALOGICA Additional equipment: Air valve x 1 Hydraulic core pull x 2 Dimensions: Weight: 3600 kg Nodpfjy Smqaox Amnolb Length/width/height: 4.30x1.59x2.08 m Drive: Pumps/motor: 11 kW Heating output: 4.2 kW Total output: 15.2 kW 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: 2014, Arburg 320C 500-170 e² / Hybrid Machine Year of manufacture: 2014 Injection Unit: Screw diameter: 30 mm Shot weight: 77 g Injection pressure: 2000 bar Dosing volume: 85 ccm Clamping Unit: Clamping force: 50 t Tie bar distance: 320x320 mm Platen size: 446x446 mm Ejector: hydraulic Clamping unit: hydraulic Control system: SELOGICA - Touchscreen Additional equipment: Hybrid machine: energy-saving and very quiet Operating hours: 48,000 h in automatic mode Nedpfx Aoy Smp Asmnjlb Air valve x 2 Core pull control Controller with 8 hot runner zones Injection unit hardened - bimetallic Main motor of the machine: servo motor with inverter – energy-saving Proportional valve on the injection unit – for precise injection Dimensions: Weight: 2210 kg Length/Width/Height: 3.41x1.43x1.99 m All machines offered are started up by our service technicians prior to sale. It is possible to receive a video of the technical tests for the selected machine or to participate in live technical tests at our company in Łódź. Price: On request