Edetans Montcada will face Valencian Warriors and Córdoba Fénix go up against Custodians Madrid Miners on 14 and 15th November for places in the Spanish Cup final.
The third year of competition saw eight sides enter and the quarter finals were held last weekend.
Holders Custodians beat Peñarroya 30-0 at home, while the Warriors, last year’s Grand Final winners, just held off Torrent Tigres 30-24.
Edetans defeated Alcoià Comtat 31-10 and Cordoba eased to victory 50-6 over Sevilla XIII