Cantilever Systems: Lift & Roll Boxes
Hannon is one of the industry’s largest producers of Cantilever Systems: Lift & Roll Boxes. The company custom designs and manufactures systems with rated pressures up to 10,000-psi and rated lifting capacities up to 4,000 tons. Hannon’s Cantilever System: Lift & Roll Boxes lift the cantilever up off the skid beams and support it on rollers, allowing the cantilever cylinders to engage and move the derrick as it rides on the rollers. Our systems consists of two cantilever lift and roll boxes and a hydraulic power unit (HPU). Each lift and roll box contains multiple jacking cylinders, roller assembly, and stainless steel control valving with stainless plumbing.
The cylinders have multiple pistons in its stainless steel jack body and are controlled by a manifold of needle valves and a pressure regulator. Valving is protected by a hinged stainless steel lid which is engraved with the system schematic. The roller assembly rides atop the jacking cylinders and is contained within the box. The high pressure HPU is air powered and provides up to 10,000-psi oil supply pressure to each box. Boxes are welded steel construction with gasketed access covers and lifting eyes and are blasted and painted with a three-part offshore coating system. Hannon’s Cantilever Systems: Lift & Roll Boxes are fully assembled; pressure and function tested; and include warranties, manuals and manufacturing record books. Hannon can ABS or DNV certify its systems upon request.