“Much Favorable Comment” for the Vulcan Extractor

An ad in Engineering News-Record, 8 October 1931, for the Vulcan Pile Extractor.  It was used to extract arch web Lackawanna sheeting by the P.J. Kennedy & Co. of Holyoke, MA.  Vulcan touted the advantages of a "single purpose machine" (as opposed to MKT's multipurpose hammer/extractors.  MKT must have gotten the message, they developed the … Continue reading “Much Favorable Comment” for the Vulcan Extractor

When the Vulcan #2 Beat the MKT 9B2

Above is a job comparison from 1926, put together by the firm Proctor and Cleghorn of Santa Rosa, CA, showing the Vulcan #2--to say nothing of the #1 also--significantly outperforming the MKT 9B2 (which they superseded with the 9B3) driving concrete piles.  Vulcan obtained this data from Harron, Rickard & McCone, Vulcan's dealer in California. … Continue reading When the Vulcan #2 Beat the MKT 9B2

How Vulcan Extractors Work

Vulcan was generally not hesitant to include information on the cycle workings of its air/steam hammers, but for some reason never included similar information on its extractors.  Above is a diagram from 1940 which shows how this is done. Basically we start with the view on the left.  Air or steam is admitted through inlet … Continue reading How Vulcan Extractors Work

Onshore Hammer Clearance Dimensions

Above is a clearance chart from 1979 of Vulcan's onshore air/steam hammers.  The clearance chart is helpful in that it can show whether your Vulcan hammer can fit into a given set of leaders. One thing to keep in mind is that, if your leaders have a low distance from the front to the back … Continue reading Onshore Hammer Clearance Dimensions

Slide Bar Gripper

Once Vulcan got past designs such as this, the slide bar (the cam which turned the valve during operation) was retained in a ram using a key driven though the base of the slide bar.  The slide bar interfaced with the ram using a spherical block to allow rotation of the bar, necessary to compensate … Continue reading Slide Bar Gripper

Vulcan Hammers: Specifications and Information

One thing Vulcan representatives got ask frequently for was a "spec sheet" for a particular hammer.  This is an online answer to that question.  Our pages include specifications, general arrangements of the hammers, photos and usually some history behind the hammer model.  We trust that this will be helpful to you in servicing your existing … Continue reading Vulcan Hammers: Specifications and Information

Vulcan 5150: Specifications and Information

Progressing from the 5100, the six (6) 5150's produced were made in 1978-9 and delivered to four customers: McDermott, Brown & Root, Raymond and Santa Fe.  Their main purpose was to drive piles for the "mudslide" platforms at the mouth of the Mississippi River, which were suffering failures due to scour loads. Specifications for the … Continue reading Vulcan 5150: Specifications and Information

Vulcan 5110: Specifications and Information

The 5110 was the last new model that Vulcan "produced" and was the first beneficiary of Vulcan's acquisition of Raymond technology in the early 1990's.  The one and only 5110 came into being by a conversion of a 560 owned by Global Movible Offshore.  This resulted in a hammer that was considerably lighter than the … Continue reading Vulcan 5110: Specifications and Information

Vulcan 5100: Specifications and Information

With the success of the 560 the 5' stroke concept was taken upward with the 5100, an extension of the 3100.  In addition to the longer stroke, it was Vulcan's first hammers with 120" jaws, to accommodate 96" piling.  The first 5100 was sold to Brown & Root (Western Hemisphere Marine, to be formal about … Continue reading Vulcan 5100: Specifications and Information