Polish term (edited): wysoko�� podnoszenia pod hakiem

ze średnią pewnością - być może jest jeszcze bardziej fachowy termin

http://www.google.com/search?hl=en&lr=&q="clearance under th...

When the roof section was raised to the hoist’s maximum lift distance, there was
insufficient clearance under the hook to lift the roof section clear of the ...
www3.gov.ab.ca/hre/whs/publications/pdf/al007.pdf

controlled cranes. (70 ton lifting capacity). and valves. •31 ft. (9.5 m) clearance
under the hook. •Massachusetts DEP approved paint. • 56 ft. ...
www.rodneyhunt.com/assembly.htm

60 ft. wide x 240 ft. long main fabrication bay serviced by overhead cranes totaling
40 tons of lifting capacity with 31 ft. clearance under the hook.
www.alaskancopper.com/catalogs/ fab_div/pdf/fac_equip_2.pdf

have an overhead lifting capacity of 20 Tonne. Clearance under the hook
is 24 ft. These are our regular workshop capacities but ...
www.dwsltd.com/manufacture.html