Used Arburg 270 S 250-60 for sale (84,176)

Condition: excellent (used), Year of construction: 2003, functionality: fully functional, clamping force: 250 kN, screw diameter: 25 mm, clearance between the columns: 270 mm, displacement volume: 39 cm³, injection weight: 36 g, mold height (min.): 200 mm, power: 10.2 kW (13.87 HP), Year of manufacture: 2003 Clamping force: 25 tons Distance between columns: 270 x 270 mm Screw diameter: 25 mm Injection volume: 39 cc Injection weight: 36 g for PS Equipment: Conveyor belt, sprue picker, core puller, Euromap Fully inspected! Hjdpfx Apexgiaqs Hjnn PRICE REDUCED FROM 6500 TO 5500 EUR!!!

Condition: excellent (used), Year of construction: 1999, Clamping force: 25 tons Hsdpfx Ajvl Skgsp Henn Distance between tie bars: 270x270 mm Opening max: 275mm Min Mould height: 200 mm Mold platens size: 400 x 400 mm Screw diameter: 18 mm Injection volume: 20 cm3 Shot weight: 17 g Injection pressure: 2500 bar Working hours: 38.035 h

Condition: excellent (used), Year of construction: 2004, Arburg 270 S 250-60 (2004) Clamping Force: 25 t Tie Bar Spacing: 270 mm × 270 mm Platen Dimensions: 400 mm × 400 mm Max. Mold Opening Stroke: 275 mm Min. Mold Height: 198 mm Max. Daylight: 279 mm Ejector Stroke: 95 mm Mold Opening Force (Max.): 14 kN Machine Dimensions (W × D): 1250 mm × 3800 mm Machine Weight: Approximately 1900 kg Hnjdpoxl Tp Tsfx Ap Hjn Screw Diameter: 22 mm Stroke Volume: 39 cm³ Injection Pressure: 1810 bar Injection Flow (2 Pumps): Up to 8.1 cm³/s Material Throughput (PS): Up to 22.0 kg/h Year of Manufacture: 2004 Type: Hydraulic Injection Molding Machine

Condition: good (used), Year of construction: 2001, functionality: fully functional, Description MACHINE WAS FULLY SERVICED NOT LONG AGO WITH NEW SCREW TECNICAL DATA IN LIST -PHOTO EUROMAP 150-60 Specifications Hnedpfevk Uqmjx Ap Hsn Manufacturer ARBURG Model 270 S 150-60 U - ALLROUNDER Year 2001 Condition Used

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 Hnodpfx Ajyt R S Aop Hsn terms of payment: 100% prior to delivery

Condition: used, Year of construction: 2001, operating hours: 78,000 h, functionality: fully functional, clamping force: 250 kN, screw diameter: 18 mm, For sale is an injection molding machine of the brand Arburg and the type 270S 250-60 The machine is fully functional and ready for immediate use Technical data Year of construction: 2001 Operating hours: 78,000 h Screw Ø: 18 mm Clamping force: 250 kN Valve gate: Pneumatic Core pull: 1*Hydraulic Internal pressure transducer On request, transportation and loading can be organized for an extra charge. can be organized throughout Europe. Prices plus VAT Viewing possible by appointment. Please 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 Hnedeu Hqhqjpfx Ap Hsn

Condition: used, Year of construction: 2008, screw size 18 mm closing pressure 250 kN opening stroke max. 350 mm mould space 200 mm control Selogica Number of working hours 52.492 h weight 2030 kg ARBURG ALLROUNDER 270 S 250-70 – Injection Molding Machine – Year ofManufacture: 2008 – Excellent Condition Interface for robot systems in accordance with EUROMAP 67 available A reliable and proven ARBURG ALLROUNDER 270 S 250-70 injection molding machine, manufactured in 2008, is for sale. The machine is ideal for producing precise plastic parts in small to medium-volume production runs and impresses with its robust construction and the renowned ARBURG quality “Made in Germany.” Technical Highlights: - Clamping force: 250 kN - Injection unit: Size 70 - Screw diameter: approx. 18–25 mm - Injection pressure: up to approx. 2,500 bar - Column spacing: approx. 270 x 270 mm Hodpfjywzv Isx Ap Honn - Platen size: approx. 380 x 380 mm - Connected load: 53 kW Electrical specifications: - Operating voltage: 400 V / 50 Hz - Control voltage: 230 V / 24 V - Total current consumption: 89 A Additional information: - Year of manufacture: 2008 - Manufacturer: ARBURG (Germany) - Machine is robust, durable, and easy to maintain - Ideal for technical plastic parts and precision applications Advantages: - Proven SELOGICA control system (standard for this series) - Compact design - High process reliability - Long-term availability of spare parts guaranteed Viewing available by appointment. Additional information, photos, or videos available upon request. - Operating hours: 52,492 hours, 7,085,048 cycles - Centring ring mounts: ø125 mm - Blowing unit fitted

Condition: excellent (used), Manufacturer: ARBURG Model: Allrounder 270-S-500-60 Year of manufacture: 1998 Serial number: 173062 Control system: Arburg Selogica Hjdox Eiq Hjpfx Ap Hsnn Screw diameter: 18 mm

Condition: excellent (used), Year of construction: 2002, Arburg 270 S-250 - 60 Hnedpfxex I Rdvs Ap Hsn Clamping force: 25 tons Year of manufacture: 2002 Tie bar spacing: 27 x 27 cm Control system: S Includes conveyor belts

Year of construction: 2003, condition: ready for operation (used), Six Arburg injection molding machines are available. 1) Arburg 320C 600-250, year of manufacture: 2001, operating hours: 83365h, clamping force: 600kN, screw diameter: 30mm, shot weight: 97g, max. injection pressure: 2470bar, shot volume: 106cm³, centering: 125mm/125mm, max. opening stroke: 550mm, platen spacing: 550mm, platen dimensions X/Y: 446mm/446mm, tie bar spacing: 320mm/320mm, core pulls: 2, temperature control units: 6, machine dimensions X/Y: approx. 4000mm/2300mm. Including Multilift handling unit. 2) Arburg 420C 1000-250, year of manufacture: 2001, operating hours: 90769h, clamping force: 1000kN, screw diameter: 30mm, shot weight: 97g, max. injection pressure: 2470bar, shot volume: 106cm³, centering: 125mm/125mm, max. opening stroke: 750mm, platen spacing: 750mm, platen dimensions X/Y: 570mm/570mm, tie bar spacing: 420mm/420mm, core pulls: 2, machine dimensions X/Y: approx. 4700mm/2350mm. Including Multilift handling unit. 4) Arburg 320C 300-100, year of manufacture: 2000, operating hours: 78784h, clamping force: 300kN, screw diameter: 20mm, shot weight: 28g, max. injection pressure: 2500bar, shot volume: 31cm³, centering: 125mm/110mm, max. opening stroke: 350mm, platen spacing: 350mm, platen dimensions X/Y: 446mm/446mm, tie bar spacing: 320mm/320mm, core pulls: 1, temperature control units: 6. 5) Arburg 220C 250-60, year of manufacture: 2001, operating hours: 86595h, clamping force: 250kN, screw diameter: 22mm, shot weight: 27g, max. injection pressure: 2340bar, shot volume: 30cm³, centering: 110mm/110mm, max. opening stroke: 425mm, platen spacing: 425mm, platen dimensions X/Y: 400mm/400mm, tie bar spacing: 221mm/221mm, core pulls: 1, temperature control units: 6. 6) Arburg 270C 300-100, year of manufacture: 2007, operating hours: 59885h, clamping force: 300kN, screw diameter: 20mm, shot weight: 28g, max. injection pressure: 2500bar, shot volume: 31cm³, centering: 110mm/110mm, max. opening stroke: 550mm, platen spacing: 550mm, platen dimensions X/Y: 446mm/446mm, tie bar spacing: 270mm/270mm, core pulls: 2, temperature control units: 6, machine dimensions X/Y: approx. 3750mm/2400mm. Including Multilift handling unit. 7) Arburg 220S 250-60, year of manufacture: 2001, operating hours: 57504h, clamping force: 250kN, screw diameter: 18mm/22mm, shot weight: 18g/27g, max. injection pressure: 2500bar/2340bar, shot volume: 20cm³/30cm³, centering: 110mm/110mm, max. opening stroke: 425mm, platen spacing: 425mm, platen dimensions X/Y: 400mm/400mm, tie bar spacing: 221mm/221mm, core pulls: 1, temperature control units: 6, machine dimensions X/Y: approx. 3300mm/1100mm. Documentation available. An on-site inspection is possible. Hsdpfstyyn Hjx Ap Hsnn

Condition: excellent (used), Manufacturer: ARBURG Model: Allrounder 270S-500-60 Hodpfxjx Eiq To Ap Hjnn Year of manufacture: 1997 Serial number: 170175 Control system: Arburg Selogica Clamping force: 500 kN Screw diameter: 15 mm

Condition: ready for operation (used), Year of construction: 2018, clamping force: 400 kN, screw diameter: 30 mm, injection weight: 79 g, Hydraulic injection moulding machine manufactured in 2018. This Arburg ALLROUNDER 270 S 400-100 features a maximum clamping force of 400 kN and offers screw diameter options of 15 mm, 20 mm, or 30 mm. It has a maximum injection pressure of 2,500 bar for the smaller screws and a maximum shot weight of 79 g for the largest. If you are looking to get high-quality injection moulding capabilities, consider the Arburg ALLROUNDER 270 S 400-100 machine we have for sale. Contact us for further details. • Tie bar distance: 270 mm • Injection unit: size 100 (per EUROMAP) Hedpfsy Nkwlox Ap Hjnn • Operating hours: 4,261 h (automatic) • Screw diameter options: 15 / 20 / 30 mm • Max. swept volume: 18 cm³ (15 mm), 31 cm³ (20 mm), 71 cm³ (30 mm) • Max. shot weight (at 1.15 g/cm³): 20 g (15 mm), 35 g (20 mm), 79 g (30 mm) • Max. injection pressure: 2,500 bar (15/20 mm), 1,390 bar (30 mm) • Centering diameter: 125 mm • Vacuum pump capacity: approx. 25 m³/h • Pneumatic flow rate: 1,000 l/min per circuit • Heating capacity per control circuit: 3.6 kW / 230 V (16 A fuse) • Drive motor voltage: 380–480 V (50–60 Hz)

Condition: used, Year of construction: 2000, (1) Injection molding machine, handling: Arburg | Multilift H with B-axis | 2000 Temperature control: HB Therm | HB-160 Z1 | 2012 Miscellaneous: 1x Handling System 1x Conveyor Belt (integrated into the injection molding machine) 1x Conveyor Unit, Motan 1x Packaging cell with: Robot, Yaskawa GP-7 Camera system, Omron Hjdpey N Sauefx Ap Henn Conveyor belt, Robotunits Technical Details: Operating voltage: 400 V Frequency (Hz): 50 Control voltage 1: 230 V Control voltage 2: 24 V Motor/Heating rated current (A): 200.0 / 93.0 Total connected load (kW): 42.0

Condition: used, Year of construction: 2010, (1) Injection molding machine, Handling: Wittmann | W832-0185 | 2010 Hnjdpfey N R Tysx Ap Hjn Temperature control: HB Therm | Miscellaneous: 1x Protective Enclosure 1x Handling System 1x Conveyor Belt 1x Hopper Dryer, company TORO-systems 1x external Hot Runner Unit, company Mold Masters 1x Conveyor Unit, company Motan

Condition: excellent (used), Year of construction: 2001, Arburg 320C 600-250 / machine in very good technical condition Year of manufacture: 2001 Hsdpfjzc Nl Tjx Ap Henn injection unit: 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: 2003, Arburg 320S 500-60 Year of manufacture: 2003 Injection Unit: Screw diameter: 18 mm Shot weight: 18 g Injection pressure: 2500 bar Dosage volume: 20 ccm Clamping Unit: Clamping force: 50 t Tie bar spacing: 320x320 mm Platen size: 446x446 mm Ejector: hydraulic Clamping system: hydraulic Control: SELOGICA Additional Equipment: Euromap 12 Robot interface Air valve x 1 Controller with 6 hot runner zones Hardened injection unit - bimetallic Dimensions: Weight: 2,350 kg Length/Width/Height: 3.32x1.24x1.81 m Drive: Pump/Motor: 11 kW Hnsdozc Nkcjpfx Ap Hsn Heating capacity: 4 kW Total power: 15 kW All machines offered are started 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: excellent (used), Year of construction: 2008, Arburg OK-C S350-60 / Vertical injection molding machine with sliding table / Very good technical condition Year of manufacture: 2008 injection unit: screw diameter: 18 mm injection weight: 18 g injection pressure: 2500 bar Dosing volume: 20 ccm Clamping unit: Clamping force: 35 t tie bar distance: 0x0 mm size of clamping platens: 295x395 mm ejector: hydraulic clamping unit: hydraulic Control system: SELOGICA - touch screen Additional equipment: Hedszc Ngwepfx Ap Honn Vertical injection molding machine with sliding table 3 stations on the sliding table Air valve x 4 Hydraulic core pull x 1 Control system with hot runners Injection unit hardened - bimetal Parallel movements Infrared protection curtains It is possible to change the screw diameter Dimensions: Weight: 2500 kg Length/width/height: 2.55x1.85x3.52 m 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: 1999, Arburg 221KS 250-75 / Universal machine Year of manufacture: 1999 injection unit: Screw diameter: 20 mm injection weight: 26 g Injection pressure: 2350 bar Metering volume: 31 ccm Clamping unit: Clamping force: 25 t tie bar distance: 221 mm size of clamping platens: 342x250 mm ejector: hydraulic clamping unit: toggle lever Control system: SELOGICA Additional equipment: Universal machine - injection unit can run both vertically and horizontally Control with air valve Core pull control injection unit hardened - bimetal Clamp for fixing the injection unit vertical Dimensions: Weight: 1150 kg Length/width/height: 2.63x1.34x1.93 m Hodpfezc Ngqsx Ap Henn Drive: Pump/motor: 5.5 kW Heating power: 4,6 kW Total power: 10,1 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: used, Year of construction: 2005, functionality: fully functional, clamping force: 2,500 kN, clearance between the columns: 630 mm, overall weight: 14,500 kg, heating capacity: 36 kW (48.95 HP), pump power: 75,000 W, power: 111 kW (150.92 HP), input frequency: 50 Hz, input voltage: 400 V, The following template has been translated into Hungarian and filled in with the data: "German: We offer this used ARBURG Allrounder Selecta 630 S 2500-2100 injection molding machine, manufactured in 2005." Hungarian: Hnsdpfx Apozcdw Dj Hsn We offer a used ARBURG Allrounder Selecta 630 S 2500-2100 injection molding machine, manufactured in 2005. Machine number: 197628 Year of manufacture: 05/2005 Weight: 14500 kg Clamping force: 2500 kN Operating voltage: 400 V Frequency: 50 Hz Heating power: 36.0 kW Pump motor power: 75.00 kW Total installed power: 111.0 kW Pump operating hours: 38989 Automatic operating hours: 37209 The machine is used occasionally, so the operating hours may vary. Wittmann robot is not included in the price. If you have any questions or need further information, please send us a message or call us.

Condition: good (used), Year of construction: 2009, functionality: fully functional, machine/vehicle number: 211886, Plastic Injection Moulding Machine | Arburg Allrounder 630 S 2500-170 Clamping force [kN]: 2,500 Number of components: 3 Clamping platen width [mm]: 900 Clamping platen height [mm]: 900 Clear tie bar spacing horizontal [mm]: 630 Clear tie bar spacing vertical [mm]: 630 Centre ring diameter [mm]: 160 Min. mould height [mm]: 400 Max. mould height [mm]: 700 Maximum opening stroke [mm]: 600 Maximum ejector stroke [mm]: 225 Thread [M]: 24 Multi turntable type: Rotary table Rotary table diameter [mm]: 900 Rotary table thread [M]: 20 Max. mould weight [kg]: 2,500 Max. mould weight, moving side [kg]: 2,500 Screw diameter [mm]: EE1:30, EE2:25, EE3:25 Hodpfxoyf Ha Hs Ap Hjnn Max. shot weight [g] PS: EE1:83, EE2:59, EE3:58 Aggregate configuration: EE1: horizontal, EE2: vertical, EE3: L-position Equipment: 2-core pull, robot Inspection possible at any time by appointment. Free loaded on truck (Butzbach). #Tags: ARBURG | Multi 3K | 630S

Condition: used, Year of construction: 2000, Arburg injection moulding machine in good condition. Can be inspected in operation upon appointment. Hjdpfx Aey Sxlcep Hjnn Availability: 06/2026 Clamping force: 2500 kN Distance between tie rods: 630 x 630 mm Shot gewicht: 826 gr Injection pressure: 1470 bar Screw diameter: 70 mm

Condition: excellent (used), Year of construction: 2009, operating hours: 78,099 h, functionality: fully functional, screw diameter: 25 mm, total height: 2,800 mm, overall weight: 10,700 kg, Equipment: documentation/manual, Arburg 520S 1600 290/70 2-component 12.3 million cycles 86,565 hours manual operation 78,099 hours automatic operation Injection unit 1 horizontal 290, diameter 25, max. 71 cm³ Injection unit 2 vertical 70, diameter 18, max. 21 cm³ Opening stroke 925 mm Electric index rotation 12-zone hot runner integrated 3x core pull 2x air blow (control for needle shut-off) Various customer inputs and outputs Interfaces: ALS Temperature control units Dryers Multilift H 6kg: 2x vacuum 5x double-acting grippers Z-axis servo 800mm C, G, X, and B-axes pneumatic Various customer inputs and outputs (gripper monitoring, etc.) Hnedpfxoxzix As Ap Hjn Important Notice!!! Current update – Tax note and benefit for used machinery From 01.07.2025, used machines can also be considered for tax purposes with a special depreciation of 30% per year. In addition to the lower price compared to a new machine, you can claim the same depreciation amounts as for a new machine. Keyword: Growth Booster (§ 7 Section 2 EStG-E)

Condition: excellent (used), Year of construction: 2009, operating hours: 78,100 h, functionality: fully functional, screw diameter: 25 mm, Arburg 520S 1600 290/70 2-Component 78,099 hours, automatic Injection Unit 1: horizontal, 290mm, diameter 25mm, max. 71 cm³ Injection Unit 2: vertical, 70mm, diameter 18mm, max. 21 cm³ Opening stroke: 925 mm Electric table indexing 12-zone integrated hot runner 3x core pulls 2x air blow (control for needle shut-off) Various customer-specific inputs and outputs Interfaces: - ALS - Temperature control units - Dryers Multilift H 6kg: - 2x vacuum - 5x double-acting grip - Z-axis servo 800mm - C, G, X, and B axis pneumatic - Various customer-specific inputs and outputs (gripper monitoring, etc.) Hnedjx A Dy Repfx Ap Hen At Maschinen-Handel, we offer a commissioning guarantee for every machine purchased from us, meaning the machine will be started up by the manufacturer. This offers you, as a customer, maximum security on the used machinery market. Important Note!!! Current legal update – Tax advantage for used machinery Effective from 01.07.2025, used machines can also be subject to an annual special depreciation of 30%. In addition to the lower price compared to a new machine, you can benefit from the same depreciation allowances as with a new machine. Keyword: growth booster (§ 7 Paragraph 2 EStG-E)

Condition: used, Year of construction: 2005, operating hours: 40,000 h, clamping force: 25 kN, displacement volume: 440 cm³, injection pressure: 1,550 bar, overall weight: 2,500 kg, screw conveyor diameter: 25 mm, terms of delivery: FCA Pegnitz Hnjdpfeynbcnsx Ap Hon delivery time: on request terms of payment: 100% prior to delivery

Condition: ready for operation (used), Year of construction: 2015, clamping force: 1,600 kN, This 6-axis Arburg Allrounder 520 S 1600-290 / 290 was manufactured in 2015. It features a highly wear-resistant thermoplastic cylinder with a 30 mm diameter and a drive unit powered by a 30 kW motor. The machine is equipped with advanced control systems for both injection units and supports multi-component processing. If you are looking to get high-quality injection moulding capabilities, consider the Arburg Allrounder 520 S 1600-290 / 290 hydraulic injection moulding machine we have for sale. Contact us for further details. • Injection units and plasticizing • 1st injection unit: • Complete thermoplastic cylinder, 30 mm, highly wear-resistant • Nozzle contact force controlled, programmable • aXw Control ScrewPilot • 2nd injection unit: • 2nd injection unit 290, vertical • Complete thermoplastic cylinder, 30 mm, highly wear-resistant • Open nozzle 30 mm with nozzle tip; extended nozzle tip +20 mm; radius 15 • Heating band for open nozzle • Nozzle contact force controlled, programmable • aXw Control ScrewPilot • Standard worm gear coupling; coupling geometry: double-sided • Multi-component processing; parting line setup on short runners for 2nd injection unit • Injection closing with mold (“flying injection”) • Drive, hydraulics, and cooling • 65 l/min charging flow rate • Pressure accumulator module, 64 l storage volume (max. 230 bar); accumulator drive • Continuous oil cooling and filtration; increased cooling capacity • Machine cooling circuits controlled • Clamping system, ejector, and core pulls Hnedpfx Ajyxdwdop Hjn • Clamping plate set; central Ø 125 mm • Minimum installation height 450 mm (extended) • Ejector pressure P/Q controlled (requires T2); ejector cross • Core pulls: • Core pull 1 simultaneous movement (P/Q controlled, programmable) • Core pull 2 simultaneous movement (P/Q controlled, programmable) • Core pull 3 simultaneous movement (P/Q controlled, programmable) • Pneumatic core pull control 4 incl. pressure reducer • Electric core pull control 1 (requires VE 436/00) • Tool pneumatics/hydraulics connections • Electrical connection pneumatic NVD 1 (in tool) • Electrical connection pneumatic NVD 2 (in tool) • Electrical and hydraulic connection NVD 3 (in tool) • Electrical and hydraulic connection NVD 4 (in tool) • Blow-out device 1 with pressure reducer; connection for blow-out device 2 • Cooling water and mold circuits • Shut-off valve for cooling water (inlet); shut-off valve for cooling water (inlet 2) • Cooling water filter 100 µm (inlet) • 3 cooling water circuits to fixed mold plate; 3 cooling water circuits to moving mold plate • Basic equipment for 2nd cooling water distributor (manual) with 7 free cooling circuits • Control and electrics • Selogica direct control; technology level • Fuse protection for heating circuits (1–6 with 16 A) • 15 electrical heating circuits for mold heating • Boost function for heating circuits (hot runner) • Upper guard open, raised to safety clearance • Fault indicator with flashing light • Operator authorization with chip card (EUROMAP 65) • Interfaces and connectivity • Interface for conveyor belt (machine base) • Prepared for six-axis robot with SELOGICA interface • Robot interface (EUROMAP 67), 50-pin • Emergency stop interface (24-pin, 2-channel) • Basic equipment for electric axis control • Host computer interface OPC-UA • Temperature control unit interface (20 mA); temperature control cable HB-THERM • Serial printer interface USB; external USB keyboard interface