Although not a particularly popular model, the 140C was a groundbreaker in many respects because of its place in Vulcan’s product line.
First, it was one of the first of Vulcan’s hammers to be larger than the Warrington-Vulcan hammers. Second, it was the first with a “single-acting version,” in this case the 014. In that respect it was a significant break from the Warrington-Vulcan construction, being much heavier. This design was carried over into Vulcan’s offshore hammer line.
Speaking of offshore hammers, the 140C was the smallest Vulcan offshore hammer that was really viable; general arrangement are shown below.
The hammer sported the 54″ male jaws, which were standard on Vulcan offshore hammers, single-acting and differential-acting alike, for hammers up to the 530 and 535.
Specifications for onshore and offshore 140C alike are shown below.
Another application for the 140C was the sand drain hammer, shown at the left. Sand drains are not conventional driven piles but are used for accelerating consolidation drainage, as described here. The cylinder head is different (to allow for a retractable hook to raise the hammer) but otherwise the hammer is pretty much the same as a standard onshore 140C.