Spanish to English Tech/Engineering Mechanics / Mech Engineering STOCK DESCRIPTIO

HI I AM TRANSLATING A LIST OF MATERIALS WITH LITERALLY NO CONTEXT. THE LIST CONTAINS ARTICLES FROM COMPUTER PARTS, TORTILLA OVENS, NUTS, BOLTS AND SO ON.

I HAVE COME TO A SEGMENT WHERE THERE IS A LIST OF ITEMS (VALVES, COILS, COVERS ECT) FOR "VOLCADORES DE CAMIONES."

IN MY UNDERSTANDING, THIS IS NOT FOR DUMP TRUCKS BUT RATHER FOR UNLOADING TRUCKS USING TILTERS OR OTHER HYDRAULIC MECHANISMS THAT LITERALLY LIFT THE TRUCK TO AN ANGLE WHERE IT CAN DUMP ITS CONTENTS.

BUT, I AM NOT SURE. LOOKING FOR YOUR HELP!!

CHILEAN SPANISH TO US ENGLISH
THANKS