HYPERTHERM 1650 100AMP CUTTING

[suzukirmz]

Hi

I've been using my hypertherm 1650 on a Dynatorch CNC cutting table THC.

and i never had any luck using 100AMP consumables . at its best it will last 10min on 10mm plate, and the cutting quality is bad from the start.

the air is 5.4bar and i am using a refrigerator dryer
all the settings are close to the cutting table there came whit the machine

does anybody have any ideas what the problem can be ??

thanks laurits

[jimcolt]

It is hard to tell from the pictures....but it appears that the nozzle is dammaged at the orifice. Make sure that the selector switch on the front panel of your 1650 is in the cut position....you do not want it in the gouge or the continuous pilot position.....either one of these other modes will cause this type of damage to the nozzle.

Ensure that you are not piercing too close to the plate. Your pierce height should be set at 1.5 to 2 times the recomended cut height.....and the pierce delay time should be set just long enough to allow full penetration of the plate before machine motion starts. If pierce delay is too short...material blowback can cause nozzle damage as shown in the photos.

On 10 mm plate I would recomend using the 60 Amp consumables for best cut quality....the speed will be slower but the edge quality and the edge squareness will be far superior. Always match the power to the material thickness for best quality....the 100 amp process is generally used for thicker material or when cut speed is more important than quality on thinner sections.

Best regards, Jim colt

[WSS]

Jim,

I have a 80 amp nozzle do the same thing today. It is cupped all the way around and the result was more bevel, very clean but clearly more bevel. Is it feasible to flatten the cup out and use it again, or should it just be replaced. I am still trying to figure what parts are most "consumed" and what to have on hand.

Thanks!
WSS

I should add that it was cutting 5/8" plate and lasted all day. I would guess close to 2000" and almost 100 pierces.