SE820 Numeric T.M.C

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  3. SE820 Numeric T.M.C
Max swing diameter 800 mm  
Max swing diameter over cross slide 515 mm  
Height of centers above bed 394 mm  
Max bar diameter inside spindle 130 mm
Max weight of workpiece in centers;  at speed up to 100 min -1 3500 kg
Max weight of overhung workpiece;  at speed up to 100 min -1    250 kg
https://www.trens.sk/sites/default/files/01_katalog_aj_small_209.pdf
https://www.trens.sk/sites/default/files/tech_list_se820_se1020_bez_60.pdf

Description

SE820 Numeric T.M.C is a machine from category CNC universal center lathe designed for turning large rotational workpieces. It allows turning outer and inner cylindrical, conical and complex shapes and all kinds of threads as well.

In combination with drilling and milling, they allow the machining of complex shapes from bars, forgings, and split material. Wide variability in specific turning operations for gas, oil, and water industries.

Main characteristic features:

  • Ideal machine for a user switching from universal center lathe to CNC controlled machine
  • C-axis with independent servomotor for achieving precise and stabile work piece position during cutting forces loading
  • Easy and comfortable control
  • Long lifetime with focus on keeping high machining accuracy
  • Headstock with 2-speed gearbox -the possibility of big diameter workpiece turning
  • Automatic gear shifting during the working cycle
  • Bearings with lifetime grease filling – low operating costs
  • Direct spindle position measurement-high accuracy in out-of-axis machining at big diameters
  • Annealed machine components for internal stress removal – high accuracy and stability throughout the lifetime of the machine
  • Covers with reinforced zones – high level of operator´s safety
  • Wide selection of optional executions and accessories – hydraulic clamping, hydraulic tailstock control, executions with increased distances between centers, a wide range of steadies and faceplates

 

Automatic turrets
Axial turret with live tool positions
Number of positions 8
Number of driven tool positions 8
Tool shank diameter (according to DIN 69880) mm 50
Coupling DIN 5482 B20x17
Max. tool cross-section mm 32x25
Driven tools motor output kW 6
Max. torque Nm 36
Max. RPM min -1 3 400

 

Characteristic features

These machines combine advantages of conventional and CNC lathes. The machine works as a conventional lathe, in manual mode, being controlled by the hand wheels. If required, the operation mode can be shifted to the full CNC control. Technological operations of machining can be programmed by simple filling-in the pre-defined cycles or eventually by standard programming.

Machines are therefore suitable for piece and small-series production of simple as well as complex shapes of the workpieces from metal and plastic. Geometric accuracy of the machines fulfills norms  ISO 1708 and ISO 230-1.

  • Apron guideways with layer of friction substance  – reaching positional accuracy even at minimal feed
  • Preloaded ground ball screws – high dimensional accuracy of workpieces
  • Machine geometry measuring by laser device – exact setting of machine axis parameters
  • Variability of selection of optional turrets
  • Constant cutting speed – high quality of turned surfaces
  • Variety of control systems

 

Main advantages

  • Ideal machine for a user switching from conventional to CNC controlled lathe
  • Easy operation
  • Manual, cycle and automatic mode
  • Software support for contour programming as well as DIN programming
  • Axis positioning through servomotors
  • Control system options - SIEMENS, FANUC, HEIDENHAIN
  • 8-positional turret with live tools
  • Wide scope of executions and accessories – hydraulic clampings, chip conveyors, drilling bar holders, steady and follow rests, faceplates and chucks, hydraulic tailstock