Multi-Turret Lathes

[Mr. M]

Just wondering what ya like the best and why

(If I forgot anyone let me know)

[YoDoug®]

I voted for Okuma.

 

I think nakamura makes a good machine also but I prefer OSP over FANUC

[35K chipper]

OSP.

.

.

35K

[Guest]

One thing to consider.

 

Yes, the Okuma machines a damned fine machines.

 

If you have a floor full of Fanuc controls, the OSP is going to be different, just something to be aware of

[Mr. M]

JParis, I have crossed trained MANY people on the OSP that had fanuc/mazatrol or even no experience successfully in a day. If you can run a machine, you can run a machine with an OSP control. I do work for an Okuma dealer now, but I ran Okumas, Mazaks, Moris, and whatever else prior. I just want to see what everybody thinks about these products.

[Joe788]

I voted Mazak because of the Multiplex. Not because I think it's the "best" multi turret lathe, but because it's probably the easiest to get running for people moving from a single turret lathe. It really is just two single turret lathes with a wall between them. If you ask almost any shop owner what they hate most about fancy multi tasking xxxx, it's finding people that can get one set up and running in a reasonable amount of time.

[robk]

We have quite a few of these Okuma LU45 here http://www.okuma.com/lu-45

We also have a few of these Johnford HT-40CX-2D as well http://www.johnford.com.tw/ht40a2d.htm

Both brands are workorses cutting Hi-Temp alloys.

The operator's prefer the Okuma because it is easier for them to reach the top turret.

[Mr. M]

Question Joe, on the twin turrets like the "Hyper Quadrex 200" Can you take the program and isolate the turrets and run one at a time for setup/1st piece?

[Guest CNC Apps Guy 1]

I selected Nakamura for the features on the machines and the FANUC Control.

[JerryBenoit]

Hi Joe,

 

To reduce your set-up time on these machines, it might be wise to look at modular tooling. Quick change jaws and also download your offsets (geometery and wear). If any tool is broke down such as drills and taps you could make sure the lenght of those tools are recorded and give instuctions as to the tolerance allowed if reset up and then touch those tools off that are broke down. Your programming department or a qualified individual, then could attach the offsets that are downloaded to the program, after the M30 or M99. This would be in a from of a G10 listed that the machine will read on the next set-up. We have done this on a few of our machines here. The first run was always slow proving clearances and timing of turrets (12 hrs) but, after we captured the set-up data any operator qualified to run the machine could follow the set-up data and the machine was cutting chips within 1.5 to 2 hrs and without scrapping the part. What we found was if the job warranted going to these machines it also warranted more control in the set-up and capturing the data. This machines we really need to look at how to reduce set-up time more closely. Once set up they can out preform and reduce lead time thru out the shop.

 

As to the question of running one turret then the other, yes you can do that on he first piece however, run the second with the same amount of detail. becuase I have see these machine crash because the operator switched the rapid over ride from 25% to 100%. What they thought was going to be enough clearance between the two turrets was at 25%.

 

Again this is why we document.

Jerry

[Sticky]

Nakamura for the build quality and accuracy.

[Greg Williams]

Basically anything made in Japan will be very good