Shop Floor Talk  

Go Back   Shop Floor Talk > Welding and Metalworking Forums > Fabrication

SFT Search:   
Reply
 
Thread Tools Display Modes
  #1  
Old 01-31-2018, 08:54 PM
digger doug's Avatar
digger doug digger doug is offline
Banned
 
Join Date: Jan 2008
Location: NW Pa
Posts: 14,033
Default Any experience on Koike Hispeed torch tips ?

I changed the CNC table to a Koike torch (a copy of one) and it works
great.

I see they make "Hi speed divergent" cutting tips.
https://www.koike.com/oxy-fuel-cutting-tips

They require Oxygen at 100 psi !

But, the usage chart shows less flow than the standard tips.

I found Matheson has them for around $18 each so I ordered
a couple (size #1 & #2) am looking to buy the sizes #0 & #00
for the thinner sizes.
Reply With Quote
  #2  
Old 01-31-2018, 09:30 PM
USMCPOP's Avatar
USMCPOP USMCPOP is offline
Gold Star Dad
 
Join Date: Jul 2006
Location: Richmond, VA area
Posts: 12,372
Default

Koike - Samurai tips. I missed out on a close-out sale for a new Koike cutting torch for $50. Japanese, done right.
__________________
USMCPOP
Reply With Quote
  #3  
Old 02-01-2018, 04:27 PM
dpaulson's Avatar
dpaulson dpaulson is offline
Member
 
Join Date: Jun 2006
Location: Wadena, Saskatchewan
Posts: 144
Default

I think they are meant for a 3 hose torch. I don't know how else you would get 100psi and 45 psi in a 2 hose torch design
__________________
I thought that I was wrong once, but I was mistaken.


David
Reply With Quote
  #4  
Old 02-01-2018, 04:42 PM
digger doug's Avatar
digger doug digger doug is offline
Banned
 
Join Date: Jan 2008
Location: NW Pa
Posts: 14,033
Default

Quote:
Originally Posted by dpaulson View Post
I think they are meant for a 3 hose torch. I don't know how else you would get 100psi and 45 psi in a 2 hose torch design
It is a 3 hose torch, what's this about 45 psi ?
Reply With Quote
  #5  
Old 02-23-2018, 03:21 PM
digger doug's Avatar
digger doug digger doug is offline
Banned
 
Join Date: Jan 2008
Location: NW Pa
Posts: 14,033
Default

Well, they finally arrived.

Jesus, does the "00" size have a small hole.

Labeled for 1/8"-1/4" thick steel, even with 100 psi
recommended Ox pressure, I don't see how it will come out
thru it.
Reply With Quote
  #6  
Old 02-23-2018, 04:48 PM
wumpus138's Avatar
wumpus138 wumpus138 is offline
Senior Member
 
Join Date: May 2009
Location: Williamsport PA
Posts: 309
Default

I have been unsuccessful in making a divergent tip run with a track torch.

Interested to know how it works for you
Reply With Quote
  #7  
Old 02-23-2018, 04:52 PM
digger doug's Avatar
digger doug digger doug is offline
Banned
 
Join Date: Jan 2008
Location: NW Pa
Posts: 14,033
Default

Quote:
Originally Posted by wumpus138 View Post
I have been unsuccessful in making a divergent tip run with a track torch.

Interested to know how it works for you
What have you tried, and what happens when it "doesn't work" ?
Reply With Quote
  #8  
Old 02-24-2018, 09:51 AM
wumpus138's Avatar
wumpus138 wumpus138 is offline
Senior Member
 
Join Date: May 2009
Location: Williamsport PA
Posts: 309
Default

I only have a 2 hose torch but I've put 50 lbs to it at which point it just seems to fuse back together.
Reply With Quote
  #9  
Old 02-24-2018, 05:33 PM
digger doug's Avatar
digger doug digger doug is offline
Banned
 
Join Date: Jan 2008
Location: NW Pa
Posts: 14,033
Default

Well, I just got back from the farm/shop.

While I didn't fill up the water table (need to string out 300' of hose,
and bucketing 8 buckets is a bit much)

I first tried the "OO" marked "1/8"-1/4" on some 3/16"plate, doing a simple
2" sq.

I was concerned at running so fast, so programmed 25 ipm, and my scrap plate,
I wire brushed it for a clean surface.

I really don't want to lose the cut.

I ran a pretty healthy amount of preheat, and it did melt the corner,
a bit.

Next was some 1/2" plate, and I switched the tip marked such (IIRC #1)

When you run 100 Psi, it doesn't seem to be that high, the water in the table
(some in the bottom) didn't splash all over, the pierce didn't make goobers
fly either.

For the 1/2" plate I slowed the program down to 20 IPM.

Here is the 1/2" plate experiment, last pix is the bottom side
Attached Thumbnails
Click image for larger version

Name:	GEDC0817.jpg
Views:	289
Size:	204.5 KB
ID:	143652   Click image for larger version

Name:	GEDC0819.jpg
Views:	271
Size:	209.9 KB
ID:	143653   Click image for larger version

Name:	GEDC0822.jpg
Views:	247
Size:	183.4 KB
ID:	143654  

Last edited by digger doug; 02-24-2018 at 05:50 PM.
Reply With Quote
  #10  
Old 02-24-2018, 08:45 PM
wumpus138's Avatar
wumpus138 wumpus138 is offline
Senior Member
 
Join Date: May 2009
Location: Williamsport PA
Posts: 309
Default

If I'm reading things correctly with a divergent tip:
#00-31.5in/min
#1-25in/min

A standard Koike tip:
#00-27in/min
#1-21in/min

So based on that, your speed would be very close to in line for a regular tip. The only incentive would be 0.02" difference in kerf?

I'm just nosy as to what your thought process here is?
I picked up a the divergent tip I have because it was the best deal I could find on a #00 tip.

I'm also curious to know what kind of table set up you have?

I've got an Airco radiagraph 10B track torch, Koike IK54, and Koike picle, so at this point I've kinda locked myself into Koike/airco tips.....


Theres some 2" with the pattern. Speed was spot on with the chart for what it said it needed to be.
Attached Thumbnails
Click image for larger version

Name:	IMG_4042.jpg
Views:	220
Size:	100.9 KB
ID:	143660   Click image for larger version

Name:	IMG_4045.jpg
Views:	269
Size:	127.8 KB
ID:	143661   Click image for larger version

Name:	IMG_4047.jpg
Views:	255
Size:	107.0 KB
ID:	143662   Click image for larger version

Name:	IMG_4281.jpg
Views:	218
Size:	137.8 KB
ID:	143663   Click image for larger version

Name:	IMG_4982.jpg
Views:	222
Size:	136.3 KB
ID:	143664  

Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Web Search:

All times are GMT -5. The time now is 02:41 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2023, vBulletin Solutions Inc.