There are several companies that have high speed spindles. There are two companies that stand out as far as ATC capability.
Pibomulti is a Swiss made mechanical spindle speeder. They have two models: X9810 and the x9810-50. They are available in both CAT 40 and 50 as well as BT40 and50 taper configs.
The X9810 has a maximum spindle speed of 40,000 RPM and it can hold up to an 8mm dia tool. You can run it for 1-1/2 hours straight without heating up the bearings too bad. It has a 10-1 gear ratio.
The X-9810-50 has a max spindle speed of 50,000 RPM and you can run the spindle for 1-1/2 hours straight at a spindle speed of 36,000 RPM. It also has a 10-1 gear ratio. It is also available in the CAT and BT tapers. If you run it at 20,000 RPM, it should be able to run and run and run. They will run you about $10K.
NT Tools has a spindle speeder that is rated at 30,000 RPM at 5-1 gear ratio. It is also mechanical and is tool changeable. It runs about $3K complete.
Hope this helps. |