Any experience on Koike Hispeed torch tips ?

[digger doug]

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.

[USMCPOP]

Koike - Samurai tips. I missed out on a close-out sale for a new Koike cutting torch for $50. Japanese, done right.

[dpaulson]

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

[digger doug]

Originally Posted by dpaulson

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 ?

[digger doug]

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.

[wumpus138]

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

Interested to know how it works for you

[digger doug]

Originally Posted by wumpus138

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" ?

[wumpus138]

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.

[digger doug]

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

[wumpus138]

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.