Anyway to increase the temperature of this preheater?

[caphair]

It's a preheater for iPhone models X-11 that use low melt 138c solder between the sandwiched layers. Has a constant temp setting of 180-190c

I want to use it for newer iPhone 12 models which use a higher solder between the layers I believe 168c.

Anyway to increase the temp of the preheater to 230c?

[sam_sam_sam]

Re: Anyway to increase the temperature of this preheater?

This type of heater are preset from the factory and you would have to replace them for the temperature that you need

[eccerr0r]

Re: Anyway to increase the temperature of this preheater?

Can always bump up voltage but then if the solder on the preheater starts to melt...

[harp]

Re: Anyway to increase the temperature of this preheater?

The top heater is directly conect to the main?, center and bottom are in series (no its not, my mistake). I wil try to desolder all of this, and measure resistance of each, maybe a simple dissarange of paralell-serial connection will increase temperature.

What is input voltage and resistance of each heater?

[redwire]

Re: Anyway to increase the temperature of this preheater?

That looks like three ceramic PTC heaters. Their self-regulating temperature is built in to their design.
You can get them cheap on Aliexpress, example. 110VAC is a bit harder to find.
But if you put in higher temp parts, how to do low temps? You could add a cheap temperature controller STC-1000 to it, not with a cheap thermistor sensor but an RTD or thermocouple can take the higher temps.

I hope it's not mains powered, there is improper high voltage spacing due to the copper pour. That doesn't look so great.
edit: I see the LED is connected to those traces, it must be 12V heaters.

[caphair]

Re: Anyway to increase the temperature of this preheater?

That looks like three ceramic PTC heaters. Their self-regulating temperature is built in to their design.
You can get them cheap on Aliexpress, example. 110VAC is a bit harder to find.
But if you put in higher temp parts, how to do low temps? You could add a cheap temperature controller STC-1000 to it, not with a cheap thermistor sensor but an RTD or thermocouple can take the higher temps.

I hope it's not mains powered, there is improper high voltage spacing due to the copper pour. That doesn't look so great.
edit: I see the LED is connected to those traces, it must be 12V heaters.

There's a plug that connects to it with an on/off switch in line with the cord going to mains. Is mains converted to 12v somewhere?