Despite failing to play their best rugby in Christchurch on Saturday, the defending champion Crusaders were always in control in their quarter-final.
By snaring a 13th successive win they took a step closer to their ninth title.
However, a stiffer challenge awaits in Christchurch next week against a Hurricanes side who showed signs of returning to their best in Friday's quarter- final defeat of the Chiefs.
The Crusaders will want to be better, spending chunks of the match inside their half, not helped by a faltering lineout display.