Hammerstein by Kev Walker.

The Hammersteins were developed by Howard Quartz's Ro-Busters corporation in the pages of 2000AD. Hammerstein, the best of these units, became the leader of the legendary ABC Warriors, a group of robots who continuously found themselves on seemingly suicide missions against impossible odds.
Hammerstein's success on the battlefield was largely down to the fact that he had been programmed with both emotions and a conscience (allowing him to distinguish between combatants and civilians). Whilst his right hammer-hand gives him his name, it's his head that is, to me, the most distinctive part of him. A great design.
His likeness was also used in the first Judge Dredd movie, the one with Silvester Stallone.
This great little Convention sketch is from the pencil of Kev Walker, one of a gresat line up of artists to have illustrated the character (created by Pat Mills).

I'm also fortunate enough to own this painted art page from Kev.

with an acetate layer over it to hold the text.

Looks like Hammerstein has seen better days.