can I get ipad on installements

If you are located in the U.S., see information in Apple Card - Monthly Installments - Apple and Products you can buy with Apple Card Monthly Installments - Apple Support and How to apply for Apple Card - Apple Support

If you want to buy it from Apple Online Store, it depends on the country you're in.

See this support page and contact a specialist:--> Apple Store Online - Apple

If you want to buy it from Apple phisycal Store or Apple Authorized Reseller, contact them and ask for monthly installments payments.

Regards

Giulio