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BTB 33: New Grapple for Knuckleboom Loaders

Tigercat has released a new grapple design to complement the LG4053 which has been equipped on Tigercat knuckleboom loaders for many years.

Close-up of a Tigercat loader grapple gripping a pile of trees.

The new LG5057T has a 5 in (127 mm) close (or minimum opening) and a 57 in (1 450 mm) maximum opening as well as an all-new tapered tong profile.

The grapple was conceived and developed in order to improve loader performance and productivity in sorting applications. In first and second thinning operations there are often many types of logs that must be merchandised and sorted – ranging from pulpwood to super pulp to chip ’n saw logs.

The most noticeable feature of the LG5057T grapple is the tapered tongs. The narrow grapple tong tips significantly improve the ability to efficiently and quickly pick logs out of a pile. The new arm profile is also more rounded at the tips allowing the logs to roll up into the grapple easily. This increases the holding capacity of the grapple when gathering numerous smaller diameter logs.

The LG5057T is equipped with cylinder guards to protect the rods from truck stakes and other hazards that could scratch or bend the cylinder rods. The rotator assembly is the same as the current LG4053.