Ko te ACS (hydraulic auto-climbing formwork system) he pakitara e piri ana ki te pakitara, e whakakahangia ana e tana ake punaha hiki hiko. Kei roto i te punaha formwork (ACS) he rango waipēhi, he commutator o runga me raro, ka taea te huri i te mana hiki i runga i te taiapa matua, i te reera piki ranei.