Sectional Telescopic Boom 32 Meter Ultra Long Reach Arm For Port Bulk Material Handling

Bulk terminals need reach without a purpose built material handler. This four section telescopic boom takes a fifty five tonne excavator carrier to thirty two metres horizontally with a 1.6 cubic metre clamshell, which is enough to strip the hold of a handysize bulker from the quay edge and to build a stockpile eight metres high in a single pass.

The telescopic arrangement is what makes the working envelope practical. Retracted, the boom is short enough to travel between berths under its own power; extended, it delivers the reach of a fixed long boom without the transport and permit burden. HX500 liners protect the discharge zone where grain, ore and clinker scour the steel.

• Four section telescopic structure: three nested inner sections extend the working envelope to thirty two metres while keeping the retracted length inside a normal port travel envelope.
• HX500 discharge liner: the zone where bulk material leaves the bucket is lined with HX 500, which resists the scour of clinker, iron ore and sharp aggregate far better than structural plate.
• Anti sway hydraulic control: a counterbalance valve and an anti sway block on the swing circuit damp the pendulum effect of a loaded clamshell at full reach, which shortens the cycle and reduces spillage.
• 1.6 cubic metre clamshell: a wide clamshell with a reversible cutting edge handles grain, fertiliser, coal and ore, and the hydraulic rotation is fed from a dedicated circuit on the arm.
• Salt air corrosion package: a three coat marine paint system, stainless steel hose clamps and sealed electrical connectors are standard, because a port environment destroys ordinary finishes within two seasons.

Bulk carrier unloading, stockpile building and reclaim, barge loading, port warehouse handling, scrap yard feeding and shipyard block handling are the primary duties. The same boom also serves heavy civil projects that need to place concrete or remove spoil over a long distance where a crane would be slower and more expensive per tonne.

Port duty is continuous, so the hydraulic design targets oil temperature stability rather than peak speed. We specify a larger cooler, a return line filter with a bypass indicator and a load sensing valve block, and we calculate the flow split between the telescopic circuit and the clamshell rotation so neither function starves the other.

The four sections travel in two bundles on a flat rack with a certified lifting plan, each section in a timber cradle with the chrome rods protected by wooden cladding. The hydraulic kit, clamshell and rotation head travel in a separate case with the commissioning manual.

Each section is pressure tested, the telescopic chrome rods are checked for straightness on a granite bed, and the complete assembly is run through twenty full extension cycles at the factory. A marine paint thickness report, weld inspection record and load test certificate are issued with the set.

We build the clamshell to the material being handled, offer a grab or a magnet as an alternative attachment, and can supply a rail mounted or pedestal mounted version of the same boom for fixed quay installations.