Directional Drilling Services

Horizontal Directional Drilling Equipment

Depending on the specific project requirements, Codmah can offer Horizontal Directional Drilling (HDD) techniques to our clients.

Codmah has a range of HDD equipment which can cater for small tight access bores, mid sized bores and large diameter rock bores. The HDD fleet includes Vermeer 24x40, 36x50 and D100x120: all rigs include their own vacuum sucker truck and recycling units as required.

This is often the most feasible method when a pipeline must be laid where there are:

• Manmade structures i.e. under built up residential & commercial areas, roadways & or railway lines.
• Natural obstacles i.e. soft ground and or under streams / rivers.

Benefits of HDD over Open Cut methods include:

• Compact plant size allowing flexibility in very tight worksites (inc inner city)
• Small construction foot print i.e. drill entry exit point within 2sq mtr areas
• Quieter than excavator and or trencher operations
• Environmentally friendly technique – non toxic polymers & bentonite drill fluids
• Very high point to point accuracy

Vermeer D24x40 Series I & II

Codmah have at its disposal a range of D24x40 machines that can be employed to meet small to medium size construction projects.

The D24x40 models offer construction flexibility by being able to;

• Install different nylon & PE pipe diameters DN18 to DN400
• Shots lengths of up to 200 meters – depending on pipe diameter
• Depth of drills ave 2.0 to 5.0 m
• 3.1 meter “FIRESTICK I” Drill Stems
• Multiple types of drilling heads for different ground conditions inc rock


Directional Drilling Sydney


Vermeer D100x120 Series II

Codmah have a D80 to supplement our D100x120 machine plus two recycling systems which will allow Codmah to offer more comprehensive HDD capabilities.

The D100x120 model will offer improved construction capabilities including;

• Install pipe diameter up to DN500 – 1000 meter shots
• Install pipe diameter +DN 500 to DN1000 – 400 meter shots
• Provide pipe bursting (cast iron & fibre based) & new pipeline insertion capability
• 6.1 meter “FIRESTICK II” Drill Stems
• On-Grade sewer bores – 1 in 200
• Multiple types of drilling heads for different ground conditions inc rock

Directional Drilling

Vermeer D36/50 Series II

This can handle a wide range of bores in the most difficult ground conditions.

• Minimum bore diameter 8.9cm
• Pipe diameter option 6cm or 6.7cm


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Today Codmah is strategically based near the M5 & M7 entry & exit junctions at Prestons in South Western Sydney. With this excellent access to two of Sydney's main feeder roads Codmah can offer operational flexibility not only within the greater Sydney area, but also to all points of New South Wales and Interstate.

Alternatively, call us on
(02) 9933 5600

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