I worked at my place 29 years. I got £14K statutory.A mate has worked there all his working life iirc (40 plus years), so should get a decent payout
It depends on what they are offering. If it's the absolute basic he might get £20K if he's lucky.
2 of my mates got circa £100K out of Nissan but one was an an engineer the other a senior so not your line monkeys.