Jekko USA, Jekko Mini Crane Brochures for Construction, Glazing, Steel Erection 5 tonne JF545 articulated spider crane a number of which have be sold in
222 ton, 113.0 kPa {1.15 kgf/cm2}. Boom and Jib: Welded lattice construction using tubular, high-tensile steel chords with pin connections between sections.