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SYMMETRIX – Overburden Drilling by Atlas Copco Welltech AB. The optimal choice when drilling medium to deep ( 60 m) holes and casing pipe is left. Atlas Copco casing advancement systems are available in versions for top hammer The Symmetrix and Elemex systems are part of a total overburden drilling. The Symmetrix overburden drilling system is a patented system comprised of an ingeniously simple concentric method of drilling through overburden with casing .

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With this new concepts Atlas Copco Secoroc will turn the product selection easier. The new face design patent pending of the Symmetrix and Elemex pilot bits improves the flushing of the cuttings and makes the penetration rate even better than before, especially in clay and dymmetrix formations. Anchoring Tieback anchors, or ground anchors, are common all over the world.

The system adds value whether the mission is to install foundation, support elements, or simply case the hole in collapsing formation. A pilot bit that drills away the center part of the hole and guides the drill string.

Casing Advancement Systems

When drilling in so-called overburden, the conditions are often challenging with risk for collapsing walls, hole deviations, and failure to reach design depth or bedrock. The three main components of the system are made up of: Gentle text on who to contact when things go wrong.

Under reaming systems are most economical solutions for symmettrix drilling in normal ground conditions. Retrievable Casing Retrievable casing is used when the casing is only needed during the drilling process, that is when it is used to keep the hole open during drilling and not used as support in the finished structure.

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Whether used in ground with big boulders, inclined competent layers, or hard bedrock Symmetrix drills until the required depth is reached. The unique design of the pilot bit directs the air over the drill bit surface, reducing air leakage arlas the ground.

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Pipe roofing Atlae roofing is a method to pre-reinforce the ground ahead of a tunnel face to ensure that excavation can proceed safely. A casing shoe welded to the casing pipe, which is pulled down by the impact of the hammer and pilot bit. These are designed for all types of rock, whether hard or soft, abrasive or fractured. News and stories Customer stories Buy spare parts.

Atlas Copco Symmetrix offers a retrievable ring bit system for tophammer drilling, an all-round overburden drilling system for holes of any depth or size. Click on casing size tab for specs, then roll pointer over or click on the table to enlarge. The Elemex system not only minimizes air escape, but also prolongs drill bit symetrix life and, in some cases, actually drills faster than any other system available.

Odex Under-reaming systems for Tophammer Under reaming systems are most economical symmdtrix for casing drilling in normal ground conditions.

Casing Advancement Systems (Symmetrix / Elemex)

Atlas Copco Secoroc have been continuously improving the casing advancement system. Year All — All The system drills more quickly and accurately than any other method available today. The system drills more quickly and accurately than any other method available today.

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They can be installed in combination with a retaining wall structure, as individual or systematic support. Atlas Copco offers a Permanent Ring bit system for DTH drilling — Symmetrix, an all-round overburden drilling system for holes of any depth or size.

Symmetrix and Elemex

The Symmetrix system is a patented system comprised of an ingeniously simple concentric method of drilling through overburden with casing. The dimensions are important and must be taken into account when selecting the right product.

Symmetrix and Elemex Contact us. This enables contractors to perform their work faster with higher quality and reduced risk. Odex has symmdtrix simple structure, good quality and the system is easy to operate.

The casing advancement system is comprised of an ingeniously simple method of drilling through overburden while advancing the casing into the hole at the same time. Odex Under-reaming systems for DTH Under reaming systems are most economical solutions for casing drilling in normal ground conditions.

coopco New face design for Symmetrix and Elemex pilot bits improves drilling in all ground conditions. Designed for short holes and is available with both thin and thick casing wall. They are then heat-treated to the right hardness, facilitating excellent surface compression and fatigue resistance. The system has opened the way to utilize new construction methods that save contractors time and money.