CNC machine accessories / Bar guiding
For CNC lathes
Spindle liners and spindle extension
Machining quality depends on how the bar is guided inside the spindle. Spindle liners reduce vibration: higher cutting speeds, longer tool life and a better surface finish.
bar + 2 mm
recommended inner diameter of the spindle liner
Ø55–105 mm
spindle bore, 4 categories
3 components
flange, bushings, threaded tubes
Ø8–80 mm
bar diameter, SE 880
1600 mm
max. bar length, SE 880
Why it matters
Less vibration, better parts.
If the bar moves freely in the spindle bore, it starts to vibrate at high speed. A spindle liner adapts the bore to the bar diameter, so the bar stays guided as it rotates.
01
Higher speed
A guided bar allows higher cutting speeds and shorter cycle times.
02
Longer tool life
Less vibration is easier on the tool: fewer insert changes, less downtime.
03
Better surface finish
More accurate dimensions and a better surface finish, with less rework and scrap.
Solutions
A liner for the spindle, an extension for the bar feeder.
Modular
LNS spindle liners
A kit configured for your machine and bar diameter, with quick changeover.
Three components: flange, bushings, threaded tubes
Bayonet flange for quick changeover
Recommended inner diameter: bar + 2 mm
For short bar feeders
SE 880 spindle extension
Lets a short bar feeder process longer bars, fully guided.
For short bar feeders, bars up to 1600 mm
3 m bars can be machined in half lengths
Hydrodynamic guide tube
From the manufacturer
LNS bar guiding and bar feeding solutions on the manufacturer's website.
Related products
Good to pair with.
Request a spindle liner kit for your machine.
Tell us the machine model, spindle bore and bar diameters, and we'll recommend a kit within 1 day.
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