 |
In 1887, Vulcan manufactured and sold the first #1 hammer, the
beginning of a long line of air/steam hammers. Today the Vulcan air/steam driven pile
hammers represent a century of development, refinement, and improvement while still
adhering to the basic concept of a hammer that is basically free of persistent breakdown,
thus avoiding expensive and embarrassing delays. The result of all of this is the long
standing reputation of the Vulcan air/steam hammer for reliability and pile driving
capability. In addition to the characteristics of the hammer itself, the owner is backed
up by a system of both stocking and servicing dealerships and a comprehensive factory
sales and service system. These together meet the needs of the contractor whenever and
wherever service is needed.
Operating PrincipleThe cycle begins at impact, the valve is rotated in such a way as to admit steam or air into the cylinder and below the piston. This accelerates the ram upward as shown in View 1. This continues until the exhaust wedge on the slide bar actuates the trip and rotates the valve to close off the steam or air inlet and opens the area of the cylinder below the piston to the atmosphere where the compressed air or steam is exhausted. The ram continues its free rise upward, decelerating with gravity until the top of the piston passes the relief ports and closes in the dashpot at the top of the cylinder. This trapped air, shown in View 2, compresses and brings the rising ram to a halt. The ram then makes a free drop to impact. Shortly before impact the intake wedge rotates the valve to admit steam or air to the cylinder and the cycle starts once again.
|
|
|
member of the IHC Caland Group
|
Vulcan
Foundation Equipment
|
Copyright © 2001-2008 Vulcan Foundation Equipment. All rights reserved.
|
||
