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
Three-jaw chuckyesyes
Four-jaw chuckyesyes
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
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
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 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