50 taper knee mill

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Blazemaster

Hot Rolled

Joined

Oct 13, 2009

Location

Olympia, Wa

• Jan 3, 2018

• #1

I have been looking at 40 taper bridgeport style machines and it got me thinking, did anyone ever make a 50 taper bridgeport style machine with a quill? More just curious than anything else. I know there are 50 taper vertical mills with quills, I have only seen them with handwheels not with a spring return handle like in a knee mill. They also usually have shorter throws on the quill, the head also doesn't swivel or knod.

I am guessing they just are not rigid enough.

 

M

Modelman

Titanium

Joined

Sep 12, 2007

Location

Northern Illinois

• Jan 3, 2018

• #2

Yeah, Paul Bunyan custom ordered one when he retired from logging and was going to take up machining as a hobby, but the order was canceled after he passed and moved on to the Big Rock Candy Mountains... Seriously, that would be one heck of a big machine... kinda overkill for a turret mill, I'd say.

Dennis

 

Lanso

Cast Iron

Joined

Mar 16, 2013

Location

Cerritos, CA

• Jan 3, 2018

• #3

How about this - 50 taper 7 1/2 Dia. quill 5 inch travel but a hand wheel.

Can anyone identify this mill?

 

Lanso

Cast Iron

Joined

Mar 16, 2013

Location

Cerritos, CA

• Jan 3, 2018

• #4

Oh yeah, the head swivels.

 

motion guru

Diamond

Joined

Dec 8, 2003

Location

Yacolt, WA

• Jan 3, 2018

• #5

Gotta be a Lagun FU series . . .

 

Lanso

Cast Iron

Joined

Mar 16, 2013

Location

Cerritos, CA

• Jan 3, 2018

• #6

That's close - Lagun FVA 4LA

 

Lanso

Cast Iron

Joined

Mar 16, 2013

Location

Cerritos, CA

• Jan 3, 2018

• #7

I'm 6" tall and I stand on a 10 inch platform to run it.

 

B

Blazemaster

Hot Rolled

Joined

Oct 13, 2009

Location

Olympia, Wa

• Jan 3, 2018

• #8

That's the closest I have seen, the head doesn't knod and no lever for the quill though. I see that thing has a 15hp spindle and 4hp feed motor. Beef! Curious what the XYZ travel, table size, capacity and machine weight is compared to a 40 taper machine.

 

Mud

Diamond

Joined

May 20, 2002

Location

South Central PA

• Jan 3, 2018

• #9

Lanso said:

I'm 6" tall and I stand on a 10 inch platform to run it.

Click to expand...

Wow, how are the tools retained in the spindle? That looks like a hydraulic cylinder on top. I bet you get tired of changing tools pretty quickly.

 

H

HuFlungDung

Diamond

Joined

Jan 19, 2005

Location

Canada

• Jan 3, 2018

• #10

Lanso said:

I'm 6" tall and I stand on a 10 inch platform to run it.

Click to expand...

I'm 12 times as tall as you and I bet I'd still need a box to stand on

 

S

SteveBausch

Stainless

Joined

Jan 11, 2010

Location

Indianapolis

• Jan 3, 2018

• #11

Craigslist had some italian job with 50 taper, I recall.

And what about googling “50 taper vertical mill” ?

5 taper vertical mill milling - Google Search

Yep, they exist

 

Lanso

Cast Iron

Joined

Mar 16, 2013

Location

Cerritos, CA

• Jan 3, 2018

• #12

HuFlungDung said:

I'm 12 times as tall as you and I bet I'd still need a box to stand on

Click to expand...

That’s funny! Of course I meant 6’

 

Lanso

Cast Iron

Joined

Mar 16, 2013

Location

Cerritos, CA

• Jan 3, 2018

• #13

Mud said:

Wow, how are the tools retained in the spindle? That looks like a hydraulic cylinder on top. I bet you get tired of changing tools pretty quickly.

Click to expand...

No hydraulic just a screw drawbar but I use Weldon QA holders so I can change tools much easier and no ladder needed.

 

S

SteveBausch

Stainless

Joined

Jan 11, 2010

Location

Indianapolis

• Jan 3, 2018

• #14

Investigate Huron “universal” mills.

50 taper is available

 

B

boslab

Titanium

Joined

Jan 6, 2007

Location

wales.uk

• Jan 4, 2018

• #15

We had loads of them Cincinnati amongst others, not unusual really but it depends what industry your in, not all that common in jobbing shops as 40 taper tooling is cheaper, I still have some 50 arbours laying about collecting rust.
The 40 taper machine I have was given to me because it was too small to be much use!
(Toolmaster)
Mark

 

SAG 180

Titanium

Joined

Sep 17, 2007

Location

Cairns, Qld, Australia

• Jan 4, 2018

• #16

Does this count?, it's Soviet as I recall, was at an auction I bought another mill at. Phot was taken a good distance away but it's definitely 50 taper.

 

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JRIowa

Diamond

Joined

May 27, 2003

Location

Marshalltown, Iowa, USA

• Jan 4, 2018

• #17

K&T made some, IIRC so did Cinci. I had a Brown & sharp with a horizontal spindle. Bunches of them out there, but finding one that isn't beat to death is the problem.
JR

 

T

Tyrone Shoelaces

Diamond

Joined

Apr 19, 2006

Location

Manchester, England

• Jan 4, 2018

• #18

SAG 180 said:

Does this count?, it's Soviet as I recall, was at an auction I bought another mill at. Phot was taken a good distance away but it's definitely 50 taper.

Click to expand...

I've worked on a few of those. I'm pretty sure that one is Russian. They're not a bad little machine. The horizontal spindle is definitely 50's Int, I think the vertical spindle is 40's Int. They were on the machines I worked on. The horizontal spindle had a electrical power draw bar with an unusual pull stud.

Regards Tyrone.

 

Ray Behner

Diamond

Joined

Mar 27, 2009

Location

Brunswick Oh USA

• Jan 4, 2018

• #19

And there's the big Van Norman #3??. Here's my brother's.
Van Norman by Ray Behner | Photobucket

 

G

Garwood

Diamond

Joined

Oct 10, 2009

Location

Oregon

• Jan 4, 2018

• #20

I don't think having a larger taper size than needed is a benefit.

50 taper is huge compared to 40. it's not 25% larger as the number suggests. It's like 150% larger.

IMO if you have less than 20HP there's no possible need for 50 taper.

I have a 50 taper manual mill with a quill. It's a Horizontal Boring Mill. The quill has more travel than X on your Bridgeport. It would not fit in your garage though.

 

Last edited: Jan 4, 2018