a crane equipped either with a vertical mast held by struts, as on barges, or with guy wires, as in building construction. The boom is attached to the bottom of the mast by a pivot and is raised and lowered by a cable reaching from the top of the mast to the end of the boom.
Mastkraana kandekonstruktsioon on mast, mida hoiavad püsti vandid (vantkraana) või toed (jäikjalgkraana). Nool võib olla kinnitatud mastiüla-, kesk- või alaossa. Viimasel juhul nimetatakse mastkraanat mastnoolkraanaks ehk derrikuks.
29.22.14 Derricks; cranes; mobile lifting frames, straddle carriers and works trucks fitted with a crane
8426 Ships' derricks; cranes, including cable cranes; mobile lifting frames, straddle carriers and works trucks fitted with a crane:
- Overhead travelling cranes, transporter cranes, gantry cranes, bridge cranes, mobile lifting frames and straddle carriers
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