Large diameters
Large-diameter horizontal drilling
HDD sections with higher diameter that need more pull force and careful ground assessment.
Larger pipes need suitable equipment, reaming and access. We deliver HDD within practical working limits — without overselling.
When to use HDD
- Larger water or industrial pipelines
- Crossings that need higher pull force
- Sites with higher soil resistance
- When a compact rig is not enough
Work sequence
For larger diameters, soil, fluid and entry-area access matter especially.
Technical limits and rig selection
Route and access planning
Pilot bore and staged reaming
Pipe pull-back
Handover
What we need from you
- Approximate location / address
- Start and end points (map or sketch)
- Desired pipe / conduit diameter
- Approximate route length
- Known obstacles (road, rail, rivers, existing utilities)
- Contact person and phone / email
Technical limits
- Practical limits up to about 700 mm diameter, 25 m depth and 450 m per bore — depending on ground and geometry.
- Actual capability depends on soil, pipe material, diameter, access and permits.
- Every job is assessed individually — there is no one identical process for every site.
- Larger diameters often need a heavy-class rig (e.g. UNI 110x120) and more space before the entry pit.
Equipment
FAQ
What is the maximum diameter?
The practical working limit is about 700 mm (D700) — real capability depends on soil, route and rig.
Is 700 mm guaranteed on every site?
No. It is our working limit, not a promise for every soil and geometry.
Which rig is used?
Depending on diameter and length — often UNI 110x120 or Vermeer D24x40. We recommend after reviewing your data.
What should I submit for a quote?
Diameter, length, location and known obstacles.
Request a large-diameter quote
State diameter and route — we will assess rig and approach.
Go to quote form