1hr and 5 mins transit

Hi, we are flying Heathrow to Bangkok with a 1hr and 5min transit in Beijing. Arrival from London is in T3 and Dept to Bangkok is also T3. We should arrive at 13:15 and the next flight is at 14:20. Is this sufficient time to transit, if we run? No luggage to collect as it transfers automatically. I understand if the first flight is delayed, therefore missing the connection, Air China will put us on the next available flight to Bangkok. Is that correct? Thanks for the help!