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MASTURN 820i

KOVOSVIT MASTURN 820i Universal centre lathe with CNC system

Max. turning dia: 720 mm
Max. turning length: 2 000 / 3 000 / 4 500 mm
Max. Workpiece weight: 3 000 Kg
Max.outpu S1: 22 kW

Simple machines suitable for piece and small lot production parts.
High precision, performance, easy operation.
Constant cutting speed – part machining of high quality.
Graphic simulation of machining.
Possibility of machining by means of manual control as on conventional lathe or via automatic cycles with CNC system support running on the basis of fixed cycles.
Program can be written as contour programming or DIN programming.
Cutting conditions and geometrical data of the part shape are entered via keyboard in control system which processes them automatically.
On demand, the software for creation of programs and their realization in your PC is available.





    STANDARD ACCESSORIES MT 820i 2000 / 3000 / 4500MT 820i Live Tool 2000 / 3000
    Working space lightingyesyes
    Fixed centreyesyes
    Adapter to spindleyesyes
    Ariving discyesyes
    Working space enclosureyesyes
    Tool coolingyesyes
    Operation tool setyesyes
    Operating manualyesyes
    HEIDENHAIN MANUAL plus 620; SIEMENS 828 Manual Turnyesyes
    SPECIAL ACCESSORIESyesyes
    Three-jaw chuckyesyes
    Four-jaw chuckyesyes
    Face-plateyesyes
    Steady restyesyes
    Following steady restyesno
    Following steady rest for turretyesno
    Guide of the barsyesyes
    Tube guidewaysyesyes
    Stock stop in spindleyesyes
    Movable centre Röhmyesyes
    Chip conveyoryesyes
    Chip containeryesyes
    Lifting equipmentyesyes
    Quick holder MULTIFIXyesno
    8-position turretyesno
    8-position turret – driven toolsnoyes
    Technological SW Data Pilot 620yesyes
    Technological SW for import of contours in DXF format (only for Heidenhain)yesyes
    Cooling of the switch board – air conditioningyesyes
    Spare parts catalogueyesyes

    Heidenhain Manualplus 620
    Siemens Sinumerik 828D
    Systems define oneself with simple operating and attendance.
    Data on screen are easy readable, the graphic of programming displays all possibilities of machining. Hand wheel is instrumental towards testing of tools and determination of zero point of section (“towards scratchy of section”). By means of interactive programming it is possible to turn the difficult formative surface like for example cones, ranges, necks or threads. Your products will be ready more precisely and fundamentally faster.
    Technologic preferences of machines:
    — Suitable for piece or small lot production of parts
    — Fast setting of new component also repeated production
    — Fast school in and employee orientation of staff
    — Operating goes out from customs of the turner
    — High load factor of the machine minimalize price per piece
    — By virtue of cycle programming accompanies the simply operating with CNC productivity
    — Allows manual production of simple sections also automatic production of complicated components
    — Support of programming with rich file of lathe cycles incl. contour programming
    — Complete machined of complicated sections for third times than on conventional machine

    Technical dataMASTURN 820i CNC 2 000 / 3 000MASTURN 820i CNC Live Tool 2 000 / 3 000
    Working range
    Geometric and working accuracyISO 1708ISO 1708
    Max. turning dia.mm720340
    Swing over bed820820
    Swing over cross slidemm530530
    Distance between centersmm2000 / 3000 / 45002000 / 3000
    Working spindle
    Spindle nose (DIN 55027, 55029)B11, C11B11, C11
    Spindle boremm128128
    Spindle taper132132
    Control systemHEIDENHAIN MANUAL plus 620 / SIEMENS SINUMERIK 828DHEIDENHAIN MANUAL plus 620 / SIEMENS SINUMERIK 828D
    Main drive
    Motor outputkW2222
    Automatic two-speed gearbox2 stages2 stages
    Spindle speed rangemin-10 – 18000 – 1800
    1st gearmin-10 – 4000 – 400
    2nd gearmin-120 – 180020 – 1800
    Max. spindle torque S1/S6-40%
    1st gearNm21502150
    2nd gearNm430430
    Axis X
    Ball screw – dia / pitchmm32 / 532 / 5
    Travelmm370370
    Rapid traversem.min-11010
    Axis Z
    Ball screw – dia / pitchmm50 / 1050 / 10
    Travelmm2000 / 3000 / 45001928 / 2928
    Rapid traversem.min-110 / 7,5 / 1010 / 7,5
    Tool head* MULTIFIX D18-position turret – Live Tools
    8-position turret
    25 x 25
    Max. tool sectionmm25 x 25 / 40 x 40
    Tailstock
    Tailstock diamm115115
    Tailstock travelmm225225
    Taper for rotary center – MORSE66
    Max. total machine inputkVa4548
    Machine dimensions (length x width x height)mm4000 / 5000 / 6000 x 2055 x 18634000 / 5000 x 2055 x 1863
    Machine weightkg4900 / 5300 / 65004900 / 5300