Charging an ipad with 60w PD

That would largely depend upon which Power Adapter you are already using to charge your iPad. A 60W USB-PD Power Adapter can be safely used, but may not offer any benefit to your achievable charging rate.

If you are using Apple’s 20W Power Adapter, as supplied with models of iPad Pro, then using a Power Delivery Power Adapter of greater wattage will not change the iPad’s maximum achievable charging time. When using a USB-PD Power Adapter, the iPad will charge at its maximum supported charging rate of 18W (i.e., 2.0A @9V / 1.5A @12V).

When using a regular USB Power Adapter, the maximum charging rate is limited to 12W (2.4A @5V). Substituting a 60W USB-PD Power Adapter will allow the iPad to charge at its 18W rate.

Simple answer? No.

Your iPad Pro will still ONLY charge between 18-20W, no matter whatever the higher rate charger is.

Apple iOS devices are designed to ONLY use the amount of maximum power they need to “fast charge”, without battery overheating or overcharging and that is it!