Sliding Hammers

Sliding hammers can be used for driving shell and auger tools or shelby and U100 tube samplers. Two hammer designs are available.

The Standard Sliding Hammer has a central shaft with a 2" BSF pin connection at its lower end. This is connected to the drive head which acts as an anvil. The outer casing of the hammer acts as the driving weight. The effective driving weight is 40 kg and the stroke length is 2ft 3in (686 mm).

The Heavy Duty Sliding Hammer utilises the central shaft as the driving weight. This strikes an anvil which is welded to the lower end of the outer casing. The anvil has a 2 1/4" x 3 1/4" API box connection for attachment to the drive head. The effective driving weight is 50 kg and the stroke length is 2ft 3in (686 mm)

Both hammers have a 2 1/4" x 3 1/4" API pin connection at the top end. The driving weight may be increased by connecting sinker bars here.

The hammers are supplied with two high-tensile steel bolts which pass through holes in the central shaft and fit into a slot in the outer casing. One bolt acts as a guide during driving. The other is a safety device, to secure the central shaft to the outer casing when the hammer is being transported.

The outside diameter of the sliding hammer is 4 1/2" (114.3 mm). Sliding hammers of other designs can be manufactured to order.

See also:
Sinker Bars
U100 Samplers