Here, though, we shall look at some areas where knuckle booms are used for other, often almost exotic, purposes. But the company also has a marine division which also largely specialises in knuckle booms. A mainstay of the marine division’s knuckle boom portfolio is its PFM series, which ranges up to the 32000-14000kg capacity PFM 4500. These are flexible machines; as Erkin says, they ‘can also function as a knuckle boom crane. TWO PALFINGER PCC 115.002 CRAWLER CRANES FOR GGR GROUPUK company GGR Group, a provider of mini spider cranes, mini crawler cranes, and pick and carry cranes, plus other bespoke lifting products for hire and sale, has taken delivery of two new Palfinger PCC 115.002 crawler cranes.