L20-XII
L20-XII
The L20-XII is the top of the range L20 model featuring both B-axis control and two Y-axis.
The rotary tools on the gang tool post feature B-axis control, allowing drilling and milling of angle features, and contouring with simultaneous 4-axis control. The swivel angle of 135°, from 90° to -45° enables the B-axis to be used for both front and back machining.
The back working tool post utilises Y-axis control for up to 8 fixed or rotary end-face or cross working tool holders for increased overlapped machining capability.
Another major feature is the ability to switch between use and a guide busing type and guide bushing-less type. This feature is provided as standard; the guide bushing can be fitted or removed very quickly with a simple operation.
The L20-XII can be used as a regular guide bushing type lathe when machining long, thin workpieces and as a guide bushing-less type reducing material wastage. Increased main spindle size reduces material wastage and bar preparation requirement. Oversized options are available for up to 25mm diameter material.
Item | L20VIII | L20IX | L20X | L20XII | |
Maximum machining diameter | ø20mm and 25mm option | ||||
Maximum machining length | GB machine | 200mm/1chuck | |||
GBL machine | Workpiece diameter×2.5mm/chuck | ||||
Maximum drilling diameter for main spindle | ø10mm | ||||
Maximum tapping diameter for main spindle(tap,die) | M8 | ||||
Main Spindle through-hole diameter | ø26mm | ||||
Spindle speed | Max.10,000min-1 | ||||
Maximum drilling diameter for gang rotary tool | ø8mm | ||||
Maximum tapping diameter for gang rotary tool | M6 | ||||
Gang rotary tool spindle speed | Max.6,000min-1 | ||||
Rotary tool spindle speed of the opposed tool post | - | ø5mm | |||
Maximum tapping diameter for rotary tool of the opposed tool post | - | M4 | |||
Rotary tool spindle speed of the opposed tool post | - | Max.7,500min-1(OP) | |||
Maximum drilling diameter for back tool post rotary tool | ø5mm(OP) | ø5mm | |||
Maximum tapping diameter for back tool post rotary tool | M4(OP) | M4 | |||
Rotary tool spindle speed of back tool post | Max.7,500min-1(OP) | Max.7,500min-1 | |||
Maximum chuck diameter of back spindle | ø20mm | ||||
Maximum protrusion length of the back spindle workpiece | 30mm | ||||
Maximum drilling diameter in back machining process | ø8mm | ||||
Maximum tapping diameter in back machining process | M6 | ||||
Back spindle speed | Max.8,000min-1 | ||||
Number of tools to be mounted | Max.37 | Max.33 | Max.44 | Max.40 | |
Tool size | Turning tool | □12mm(□13mm, □16mm) | |||
Sleeve | ø25mm(GDS107,210)ø19.05mm | ||||
Rapid feed rate | All axis(except Y2 axis) | 32m/min | |||
Motors | For spindle drive | 2.2/3.7kW | |||
For tool spindle drive(gang tool post) | 1.0kW | ||||
For rotary tool drive of Back tool post | std | std | |||
For rotary tool drive of the opposed tool post | std | std | |||
For back spindle drive | For back spindle drive | 0.75/1.5kW | |||
For cutting coolant oil | For cutting coolant oil | 0.4kW | |||
Input power capacity | 7.3kVA | ||||
Center height | 1,050mm | ||||
Weight | 2,350kg | 2,400kg |
