Flushing Heads / swivels

Sysbohr’s highly qualified team develop custom tooling and economically efficient solutions for all drilling projects in the special civil engineering and geothermal energy sectors.

In order to increase the penetration rate of the drill string during the drilling process, and to transport the drilled cuttings from the toe of the borehole to the surface, flushing medium is introduced into the system.

The flushing medium can be water or air, or a combination thereof, and can be introduced into the drill string via the side inlet of the flushing head / swivel.

With the incorporation of various ejection bell and flushing ring designs and combinations, the drilled cuttings and flushing medium may be transported and ejected in a controlled manner through the flushing head / swivel.

For the production of grout bodies in anchor work, the cement suspension may be introduced to the system through the flushing head / swivel.

High pressure as well as low pressure flushing head / swivel versions with the respective sealing technology can be supplied for the most challenging projects.

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Product information sheet

VARIANT 1

This flushing head / swivel variant is mostly used in double head configurations, but can also be encountered in single drifter applications.

Percussive flushing head consisting of:

Flushing shaft with thread types to suit shank adaptor and anchor or balancing rod
Flushing ring with thread type G 1” – G 3”
Traverse / holder to match hydraulic drifter

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VARIANT 2

This flushing head / swivel is mostly used in outer flushing applications. A thread-saver design has been incorporated into the head to make replacement easier and more versatile.

Percussive flushing head consisting of:

Flushing shaft with thread types to suit shank adaptor and anchor or balancing rod
Flushing ring with thread type G 1” – G 3”
Percussion drive nipple / box to match the flushing shaft and outer casing
Traverse / holder to match hydraulic drifter

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VARIANT 3

This flushing head / swivel is the shortest Duplex variant. The drilled cuttings are transported within the drill string annulus up to, and directed out of the ejection bell. This variant is especially suited to confined operating conditions. All parts are interchangeable.

COMPACT Duplex percussive flushing head consisting of:

Flushing shaft with thread types to suit shank adaptor, ejection bell and balancing rod
Flushing ring with thread type G 1” – G 3”
Ejection bell to suit balancing rod and outer drill string with ejection bell discharge ports (the ejection bell discharge ports may be closed off if and when required).
Balancing rod to flushing shaft and inner drill string
Traverse / holder to match flushing ring and hydraulic drifter

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VARIANT 4

This flushing head / swivel is the most common Duplex variant. The drilled cuttings are transported within the drill string annulus up to, and directed out of the ejection bell. All parts are interchangeable.

Duplex percussive flushing head consisting of:

Flushing shaft with thread types to suit shank adaptor, ejection bell and balancing rod
Flushing ring with thread type G 1” – G 3”
Ejection bell to suit balancing rod and outer drill string with ejection bell discharge ports (the ejection bell discharge ports may be closed off if and when required).
Balancing rod to flushing shaft and inner drill string
Traverse / holder to match flushing ring and hydraulic drifter

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VARIANT 5

This flushing head / swivel is a duplex variant with an additional discharge flushing ring. The drilled cuttings are transported within the drill string annulus up to, and directed out of the ejection bell, thereby discharging in a controlled manner. All parts are interchangeable.

Duplex percussive flushing head consisting of:

Flushing shaft with thread types to suit shank adaptor, ejection bell and balancing rod
Flushing ring with thread type G 1” – G 3”
Ejection bell to suit flushing shaft and outer drill string with ejection ports
Discharge preventer / diverter flushing ring to suit ejection bell
Balancing rod to flushing shaft and inner drill string
Traverse / holder to hold flushing ring, discharge preventer / diverter flushing ring to hydraulic drifter

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VARIANT 6

This flushing head / swivel is a duplex variant with an additional discharge flushing ring and a damped unit connected to the balancing rod. This enables the simultaneous use of a hydraulic drifter and DTH hammer. The drilled cuttings are transported within the drill string annulus up to, and directed out of the ejection bell, thereby discharging in a controlled manner. All parts are interchangeable..

Dual percussive flushing head consisting of:

Flushing shaft with thread types to suit shank adaptor, ejection bell and balancing rod
Flushing ring with thread type G 1” – G 3”
Ejection bell to suit flushing shaft and outer drill string with ejection ports
Discharge preventer / diverter flushing ring to suit ejection bell
Balancing rod to flushing shaft and inner drill string
Damper units
Traverse / holder to hold flushing ring, discharge preventer / diverter flushing ring to hydraulic drifter

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VARIANT 7

This flushing head / swivel is a high pessure variant and can withstand up to 500 bar (7252 psi). Mostly utilised in water driven DTH hammer applications, and can be easily coupled to a shank adaptor.

High pressure flushing head consisting of:

lushing shaft with thread type to suit shank adaptor and high pressure tubes
Flushing ring with thread type G 1-1/2”
Damper units
Securing elements
Traverse / holder to hold flushing ring, and to suit hydraulic drifter

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